/*++

Copyright (c) 1990-1999 Microsoft Corporation, All Rights Reserved

Module Name:

    candui.c

++*/

#include <windows.h>
#include <immdev.h>
#include <imedefs.h>

/**********************************************************************/
/* GetCandWnd                                                         */
/* Return Value :                                                     */
/*      window handle of candidatte                                   */
/**********************************************************************/
HWND PASCAL GetCandWnd(
    HWND hUIWnd)                // UI window
{
    HGLOBAL  hUIPrivate;
    LPUIPRIV lpUIPrivate;
    HWND     hCandWnd;

    hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw candidate window
        return (HWND)NULL;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw candidate window
        return (HWND)NULL;
    }

    hCandWnd = lpUIPrivate->hCandWnd;

    GlobalUnlock(hUIPrivate);
    return (hCandWnd);
}

void PASCAL CalcCandPos(
    HIMC    hIMC,
    HWND    hUIWnd,
    LPPOINT lpptWnd)            // the composition window position
{
    POINT          ptNew, ptSTWPos;
    RECT           rcWorkArea;

#ifdef MUL_MONITOR
    rcWorkArea = ImeMonitorWorkAreaFromPoint(*lpptWnd);
#else
    rcWorkArea = sImeG.rcWorkArea;
#endif


    ptNew.x = lpptWnd->x + lpImeL->xCompWi + UI_MARGIN;
    if (ptNew.x + sImeG.xCandWi > rcWorkArea.right) {
        // exceed screen width
        ptNew.x = lpptWnd->x - sImeG.xCandWi - UI_MARGIN;
    }

    ptNew.y = lpptWnd->y + lpImeL->cyCompBorder - sImeG.cyCandBorder;
    if (ptNew.y + sImeG.yCandHi > rcWorkArea.bottom) {
        // exceed screen high
        ptNew.y = rcWorkArea.bottom - sImeG.yCandHi;
    }

    if(!sImeG.IC_Trace) {
        HWND hCompWnd;

           ImmGetStatusWindowPos(hIMC, (LPPOINT)&ptSTWPos);
        hCompWnd = GetCompWnd(hUIWnd);
        if (hCompWnd) {
            ptNew.x = ptSTWPos.x + sImeG.xStatusWi + lpImeL->xCompWi + 2 * UI_MARGIN;
            if((ptSTWPos.x + sImeG.xStatusWi + sImeG.xCandWi + lpImeL->xCompWi + 2 * UI_MARGIN)>
              rcWorkArea.right) {
              if (ptSTWPos.x >= (sImeG.xCandWi + lpImeL->xCompWi + 2 * UI_MARGIN)) { 
                ptNew.x = ptSTWPos.x - lpImeL->xCompWi - sImeG.xCandWi - 2 * UI_MARGIN;
              } else {
                ptNew.x = ptSTWPos.x + sImeG.xStatusWi + UI_MARGIN;
              }
            }


            ptNew.y = ptSTWPos.y + lpImeL->cyCompBorder - sImeG.cyCandBorder;
            if (ptNew.y + sImeG.yCandHi > rcWorkArea.bottom) {
                ptNew.y = rcWorkArea.bottom - sImeG.yCandHi;
            }
        } else {
            ptNew.x = ptSTWPos.x + sImeG.xStatusWi + UI_MARGIN;
            if(((ptSTWPos.x + sImeG.xStatusWi + sImeG.xCandWi + UI_MARGIN)>=
              rcWorkArea.right)
              && (ptSTWPos.x >= sImeG.xCandWi + UI_MARGIN)) { 
                ptNew.x = ptSTWPos.x - sImeG.xCandWi - UI_MARGIN;
            }

            ptNew.y = ptSTWPos.y + lpImeL->cyCompBorder - sImeG.cyCandBorder;
            if (ptNew.y + sImeG.yCandHi > rcWorkArea.bottom) {
                ptNew.y = rcWorkArea.bottom - sImeG.yCandHi;
            }
        }
    }
    
    lpptWnd->x = ptNew.x;
    lpptWnd->y = ptNew.y;

    return;
}

/**********************************************************************/
/* AdjustCandPos                                                      */
/**********************************************************************/
void AdjustCandPos(
    HIMC    hIMC,
    LPPOINT lpptWnd)            // the composition window position
{
    LPINPUTCONTEXT lpIMC;
    LONG           ptFontHi;
    UINT           uEsc;
    RECT           rcWorkArea;

#ifdef MUL_MONITOR
    rcWorkArea = ImeMonitorWorkAreaFromPoint(*lpptWnd);
#else
    rcWorkArea = sImeG.rcWorkArea;
#endif

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return;
    }

    if (lpIMC->lfFont.A.lfHeight > 0) {
        ptFontHi = lpIMC->lfFont.A.lfHeight;
    } else if (lpIMC->lfFont.A.lfWidth == 0) {
        ptFontHi = lpImeL->yCompHi;
    } else {
        ptFontHi = -lpIMC->lfFont.A.lfHeight;
    }

    if (ptFontHi > lpImeL->yCompHi * 8) {
        ptFontHi = lpImeL->yCompHi * 8;
    }

    if (ptFontHi < sImeG.yChiCharHi) {
        ptFontHi = sImeG.yChiCharHi;
    }

    // -450 to 450 index 0
    // 450 to 1350 index 1
    // 1350 to 2250 index 2
    // 2250 to 3150 index 3
    uEsc = (UINT)((lpIMC->lfFont.A.lfEscapement + 450) / 900 % 4);

    // find the location after IME do an adjustment
    ptFontHi = ptFontHi * ptInputEsc[uEsc].y;

    if(lpptWnd->y + ptFontHi + sImeG.yCandHi <= rcWorkArea.bottom) {
        lpptWnd->y += ptFontHi;
    } else {
        lpptWnd->y -= (ptFontHi + sImeG.yCandHi);
    }

    ImmUnlockIMC(hIMC);
    return;
}

/**********************************************************************/
/* AdjustCandRectBoundry                                              */
/**********************************************************************/
void PASCAL AdjustCandRectBoundry(
    LPINPUTCONTEXT lpIMC,
    LPPOINT        lpptCandWnd)            // the caret position
{
    RECT  rcExclude, rcUIRect, rcInterSect;
    UINT  uEsc;
    RECT  rcWorkArea;

#ifdef MUL_MONITOR

    {
        RECT rcCandWnd;

        *(LPPOINT)&rcCandWnd = *(LPPOINT)lpptCandWnd;

        rcCandWnd.right = rcCandWnd.left + sImeG.xCandWi;
        rcCandWnd.bottom = rcCandWnd.top + sImeG.yCandHi;

        rcWorkArea = ImeMonitorWorkAreaFromRect(&rcCandWnd);
    }

#else
    rcWorkArea = sImeG.rcWorkArea;
#endif

    // be a normal rectangle, not a negative rectangle
    if (lpIMC->cfCandForm[0].rcArea.left > lpIMC->cfCandForm[0].rcArea.right) {
        LONG tmp;

        tmp = lpIMC->cfCandForm[0].rcArea.left;
        lpIMC->cfCandForm[0].rcArea.left = lpIMC->cfCandForm[0].rcArea.right;
        lpIMC->cfCandForm[0].rcArea.right = tmp;
    }

    if (lpIMC->cfCandForm[0].rcArea.top > lpIMC->cfCandForm[0].rcArea.bottom) {
        LONG tmp;

        tmp = lpIMC->cfCandForm[0].rcArea.top;
        lpIMC->cfCandForm[0].rcArea.top = lpIMC->cfCandForm[0].rcArea.bottom;
        lpIMC->cfCandForm[0].rcArea.bottom = tmp;
    }

    // translate from client coordinate to screen coordinate
    rcExclude = lpIMC->cfCandForm[0].rcArea;

    rcExclude.left += lpptCandWnd->x - lpIMC->cfCandForm[0].ptCurrentPos.x;
    rcExclude.right += lpptCandWnd->x - lpIMC->cfCandForm[0].ptCurrentPos.x;

    rcExclude.top += lpptCandWnd->y - lpIMC->cfCandForm[0].ptCurrentPos.y;
    rcExclude.bottom += lpptCandWnd->y - lpIMC->cfCandForm[0].ptCurrentPos.y;

    // if original point is OK, we use it
    *(LPPOINT)&rcUIRect = *lpptCandWnd;

    if (rcUIRect.left < rcWorkArea.left) {
        rcUIRect.left = rcWorkArea.left;
    } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
        rcUIRect.left = rcWorkArea.right - sImeG.xCandWi;
    } else {
    }

    if (rcUIRect.top < rcWorkArea.top) {
        rcUIRect.top = rcWorkArea.top;
    } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.bottom) {
        rcUIRect.top = rcWorkArea.bottom - sImeG.yCandHi;
    } else {
    }

    rcUIRect.right = rcUIRect.left + sImeG.xCandWi;
    rcUIRect.bottom = rcUIRect.top + sImeG.yCandHi;

    if (!IntersectRect(&rcInterSect, &rcExclude, &rcUIRect)) {
        *lpptCandWnd = *(LPPOINT)&rcUIRect;
        return;
    }

    uEsc = (UINT)((lpIMC->lfFont.A.lfEscapement + 450) / 900 % 4);

    if (uEsc & 0x0001) {
        // 900 & 2700 we need change x coordinate
        if (ptInputEsc[uEsc].x > 0) {
            rcUIRect.left = rcExclude.right;
        } else {
            rcUIRect.left = rcExclude.left - sImeG.xCandWi;
        }
    } else {
        // 0 & 1800 we do not change x coordinate
        rcUIRect.left = lpptCandWnd->x;
    }

    if (rcUIRect.left < rcWorkArea.left) {
        rcUIRect.left = rcWorkArea.left;
    } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
        rcUIRect.left = rcWorkArea.right - sImeG.xCandWi;
    } else {
    }

    if (uEsc & 0x0001) {
        // 900 & 2700 we do not change y coordinate
        rcUIRect.top = lpptCandWnd->y;
    } else {
        // 0 & 1800 we need change y coordinate
        if (ptInputEsc[uEsc].y > 0) {
            rcUIRect.top = rcExclude.bottom;
        } else {
            rcUIRect.top = rcExclude.top - sImeG.yCandHi;
        }
    }

    if (rcUIRect.top < rcWorkArea.top) {
        rcUIRect.top = rcWorkArea.top;
    } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.bottom) {
        rcUIRect.top = rcWorkArea.bottom - sImeG.yCandHi;
    } else {
    }

    rcUIRect.right = rcUIRect.left + sImeG.xCandWi;
    rcUIRect.bottom = rcUIRect.top + sImeG.yCandHi;

    // the candidate window not overlapped with exclude rectangle
    // so we found a position
    if (!IntersectRect(&rcInterSect, &rcExclude, &rcUIRect)) {
        *lpptCandWnd = *(LPPOINT)&rcUIRect;
        return;
    }

    // adjust according to
    *(LPPOINT)&rcUIRect = *lpptCandWnd;

    if (uEsc & 0x0001) {
        // 900 & 2700 we prefer adjust x
        if (ptInputEsc[uEsc].x > 0) {
            rcUIRect.left = rcExclude.right;
        } else {
            rcUIRect.left = rcExclude.left - sImeG.xCandWi;
        }

        if (rcUIRect.left < rcWorkArea.left) {
        } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
        } else {
            if (rcUIRect.top < rcWorkArea.top) {
                rcUIRect.top = rcWorkArea.top;
            } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.bottom) {
                rcUIRect.top = rcWorkArea.bottom - sImeG.yCandHi;
            }

            *lpptCandWnd = *(LPPOINT)&rcUIRect;
            return;
        }

        // negative try
        if (ptInputEsc[uEsc].x > 0) {
            rcUIRect.left = rcExclude.left - sImeG.xCandWi;
        } else {
            rcUIRect.left = rcExclude.right;
        }

        if (rcUIRect.left < rcWorkArea.left) {
        } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
        } else {
            if (rcUIRect.top < rcWorkArea.top) {
                rcUIRect.top = rcWorkArea.top;
            } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.bottom) {
                rcUIRect.top = rcWorkArea.bottom - sImeG.yCandHi;
            }

            *lpptCandWnd = *(LPPOINT)&rcUIRect;
            return;
        }

        // negative try failure again, we use positive plus display adjust
        if (ptInputEsc[uEsc].x > 0) {
            rcUIRect.left = rcExclude.right;
        } else {
            rcUIRect.left = rcExclude.left - sImeG.xCandWi;
        }

        if (rcUIRect.left < rcWorkArea.left) {
            rcUIRect.left = rcWorkArea.left;
        } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
            rcUIRect.left = rcWorkArea.right - sImeG.xCandWi;
        }

        if (rcUIRect.top < rcWorkArea.top) {
            rcUIRect.top = rcWorkArea.top;
        } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.bottom) {
            rcUIRect.top = rcWorkArea.bottom - sImeG.yCandHi;
        }

        *lpptCandWnd = *(LPPOINT)&rcUIRect;
    } else {
        // 0 & 1800 we prefer adjust y
        if (ptInputEsc[uEsc].y > 0) {
            rcUIRect.top = rcExclude.bottom;
        } else {
            rcUIRect.top = rcExclude.top - sImeG.yCandHi;
        }

        if (rcUIRect.top < rcWorkArea.top) {
        } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.bottom) {
        } else {
            if (rcUIRect.left < rcWorkArea.left) {
                rcUIRect.left = rcWorkArea.left;
            } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
                rcUIRect.left = rcWorkArea.right - sImeG.xCandWi;
            }

            *lpptCandWnd = *(LPPOINT)&rcUIRect;
            return;
        }

        // negative try
        if (ptInputEsc[uEsc].y > 0) {
            rcUIRect.top = rcExclude.top - sImeG.yCandHi;
        } else {
            rcUIRect.top = rcExclude.bottom;
        }

        if (rcUIRect.top < rcWorkArea.top) {
        } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.right) {
        } else {
            if (rcUIRect.left < rcWorkArea.left) {
                rcUIRect.left = rcWorkArea.left;
            } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
                rcUIRect.left = rcWorkArea.right - sImeG.xCandWi;
            }

            *lpptCandWnd = *(LPPOINT)&rcUIRect;
            return;
        }

        // negative try failure again, we use positive plus display adjust
        if (ptInputEsc[uEsc].y > 0) {
            rcUIRect.top = rcExclude.bottom;
        } else {
            rcUIRect.top = rcExclude.top - sImeG.yCandHi;
        }

        if (rcUIRect.left < rcWorkArea.left) {
            rcUIRect.left = rcWorkArea.left;
        } else if (rcUIRect.left + sImeG.xCandWi > rcWorkArea.right) {
            rcUIRect.left = rcWorkArea.right - sImeG.xCandWi;
        }

        if (rcUIRect.top < rcWorkArea.top) {
            rcUIRect.top = rcWorkArea.top;
        } else if (rcUIRect.top + sImeG.yCandHi > rcWorkArea.bottom) {
            rcUIRect.top = rcWorkArea.bottom - sImeG.yCandHi;
        }

        *lpptCandWnd = *(LPPOINT)&rcUIRect;
    }

    return;
}

/**********************************************************************/
/* AdjustCandBoundry                                                  */
/**********************************************************************/
void PASCAL AdjustCandBoundry(
    LPPOINT lpptCandWnd)            // the position
{

    RECT  rcWorkArea;

#ifdef MUL_MONITOR
    {
        RECT rcCandWnd;

        *(LPPOINT)&rcCandWnd = *(LPPOINT)lpptCandWnd;

        rcCandWnd.right = rcCandWnd.left + sImeG.xCandWi;
        rcCandWnd.bottom = rcCandWnd.top + sImeG.yCandHi;

        rcWorkArea = ImeMonitorWorkAreaFromRect(&rcCandWnd);
    }
#else
    rcWorkArea = sImeG.rcWorkArea;
#endif
    if (lpptCandWnd->x < rcWorkArea.left) {
        lpptCandWnd->x = rcWorkArea.left;
    } else if (lpptCandWnd->x + sImeG.xCandWi > rcWorkArea.right) {
        lpptCandWnd->x = rcWorkArea.right - sImeG.xCandWi;
    }

    if (lpptCandWnd->y < rcWorkArea.top) {
        lpptCandWnd->y = rcWorkArea.top;
    } else if (lpptCandWnd->y + sImeG.yCandHi > rcWorkArea.bottom) {
        lpptCandWnd->y = rcWorkArea.bottom - sImeG.yCandHi;
    }

    return;
}

/**********************************************************************/
/* SetCandPosition()                                                  */
/**********************************************************************/
LRESULT PASCAL SetCandPosition(
    HWND hCandWnd)
{
    HWND           hUIWnd;
    HIMC           hIMC;
    LPINPUTCONTEXT lpIMC;
    POINT          ptNew;

    hUIWnd = GetWindow(hCandWnd, GW_OWNER);

    hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
    if (!hIMC) {
        return (1L);
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return (1L);
    }

    ptNew = lpIMC->cfCandForm[0].ptCurrentPos;

    ClientToScreen((HWND)lpIMC->hWnd, &ptNew);

    if (lpIMC->cfCandForm[0].dwStyle & CFS_FORCE_POSITION) {
    } else if (lpIMC->cfCandForm[0].dwStyle == CFS_CANDIDATEPOS) {
        AdjustCandBoundry(&ptNew);
    } else if (lpIMC->cfCandForm[0].dwStyle == CFS_EXCLUDE) {
           if(!sImeG.IC_Trace) {
               CalcCandPos(hIMC, hUIWnd, &ptNew);
        }
        AdjustCandBoundry(&ptNew);
    }

    SetWindowPos(hCandWnd, NULL, ptNew.x, ptNew.y,
        0, 0, SWP_NOACTIVATE|SWP_NOSIZE|SWP_NOZORDER);

    ImmUnlockIMC(hIMC);

    return (0L);
}

/**********************************************************************/
/* ShowCand()                                                         */
/**********************************************************************/
void PASCAL ShowCand(           // Show the candidate window
    HWND    hUIWnd,
    int     nShowCandCmd)
{
    HGLOBAL  hUIPrivate;
    LPUIPRIV lpUIPrivate;

    hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw candidate window
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw candidate window
        return;
    }

    if (lpUIPrivate->nShowCandCmd == nShowCandCmd) {
        goto SwCandNoChange;
    }

    if (nShowCandCmd == SW_HIDE) {
        lpUIPrivate->fdwSetContext &= ~(ISC_HIDE_CAND_WINDOW);
    }

    if (!lpUIPrivate->hCandWnd) {
        // not in show candidate window mode
    } else if (lpUIPrivate->nShowCandCmd == nShowCandCmd) {
    } else {
        if(nShowCandCmd == SW_HIDE) {
            uOpenCand = 0;
        } else {
            HIMC           hIMC;
            POINT          ptSTWPos;
            int            Comp_CandWndLen;
            RECT           rcWorkArea;

            uOpenCand = 1;

            // reset status window for LINE_UI(FIX_UI)
            hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
            if (!hIMC) {
                goto ShowCand;
            }

               ImmGetStatusWindowPos(hIMC, (LPPOINT)&ptSTWPos);
#ifdef MUL_MONITOR
            rcWorkArea = ImeMonitorWorkAreaFromPoint(ptSTWPos);
#else
            rcWorkArea = sImeG.rcWorkArea;
#endif
            Comp_CandWndLen = 0;
            if(uOpenCand) {
                Comp_CandWndLen += sImeG.xCandWi + UI_MARGIN;
                if(uStartComp) {
                    Comp_CandWndLen += lpImeL->xCompWi + UI_MARGIN;
                }
                if(ptSTWPos.x + sImeG.xStatusWi + Comp_CandWndLen > rcWorkArea.right) {
                    PostMessage(GetCompWnd(hUIWnd), 
                                WM_IME_NOTIFY, 
                                IMN_SETCOMPOSITIONWINDOW, 
                                0);
                }
            }
        }
        
ShowCand:
        ShowWindow(lpUIPrivate->hCandWnd, nShowCandCmd);
        lpUIPrivate->nShowCandCmd = nShowCandCmd;
    }

SwCandNoChange:
    GlobalUnlock(hUIPrivate);
    return;
}

/**********************************************************************/
/* OpenCand                                                           */
/**********************************************************************/
void PASCAL OpenCand(
    HWND hUIWnd)
{
    HGLOBAL        hUIPrivate;
    LPUIPRIV       lpUIPrivate;
    HIMC           hIMC;
    LPINPUTCONTEXT lpIMC;
    POINT          ptWnd;

    hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw candidate window
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw candidate window
        return;
    }

    lpUIPrivate->fdwSetContext |= ISC_SHOWUICANDIDATEWINDOW;

    hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
    if (!hIMC) {
        goto OpenCandUnlockUIPriv;
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        goto OpenCandUnlockUIPriv;
    }

    if (lpIMC->cfCandForm[0].dwIndex == 0) {
        
        ptWnd = lpIMC->cfCandForm[0].ptCurrentPos;

        ClientToScreen(lpIMC->hWnd, &ptWnd);

        if (lpIMC->cfCandForm[0].dwStyle & CFS_FORCE_POSITION) {
        } else if (lpIMC->cfCandForm[0].dwStyle == CFS_EXCLUDE) {
               POINT ptCaret;

            AdjustCandBoundry(&ptWnd);
            if((!sImeG.IC_Trace) || (!GetCaretPos(&ptCaret))) {

                if(GetCompWnd(hUIWnd)) {
                    ptWnd.x = ptWnd.y = 0;
                    ClientToScreen(lpIMC->hWnd, &ptWnd);
                    ptWnd.x -= lpImeL->cxCompBorder + 1;
                    ptWnd.y -= lpImeL->cyCompBorder + 1;
                } else {
                    ptWnd.x = lpImeL->cxCompBorder + 1;
                    ptWnd.y = lpImeL->cyCompBorder + 1;
                }

                   CalcCandPos(hIMC, hUIWnd, &ptWnd);

                lpIMC->cfCandForm[0].dwStyle |= CFS_CANDIDATEPOS;
                lpIMC->cfCandForm[0].ptCurrentPos = ptWnd;
                ScreenToClient(lpIMC->hWnd, &lpIMC->cfCandForm[0].ptCurrentPos);
            } else {
                AdjustCandPos(hIMC, &ptWnd);
            }
        } else if (lpIMC->cfCandForm[0].dwStyle == CFS_CANDIDATEPOS) {
            AdjustCandBoundry(&ptWnd);
        } else {
            if (lpUIPrivate->nShowCompCmd != SW_HIDE) {
                ptWnd.x = ptWnd.y = 0;
                ClientToScreen(lpUIPrivate->hCompWnd, &ptWnd);
            } else {
                ptWnd = lpIMC->cfCompForm.ptCurrentPos;
                ClientToScreen(lpIMC->hWnd, &ptWnd);
            }

            ptWnd.x -= lpImeL->cxCompBorder + 1;
            ptWnd.y -= lpImeL->cyCompBorder + 1;

               CalcCandPos(hIMC, hUIWnd, &ptWnd);

            lpIMC->cfCandForm[0].dwStyle |= CFS_CANDIDATEPOS;
            lpIMC->cfCandForm[0].ptCurrentPos = ptWnd;
            ScreenToClient(lpIMC->hWnd, &lpIMC->cfCandForm[0].ptCurrentPos);
        }
    } else {
        // make cand windows trace comp window !
        if (lpUIPrivate->nShowCompCmd != SW_HIDE) {
            ptWnd.x = ptWnd.y = 0;
            ClientToScreen(lpUIPrivate->hCompWnd, &ptWnd);
        } else {
            ptWnd = lpIMC->cfCompForm.ptCurrentPos;
            ClientToScreen(lpIMC->hWnd, &ptWnd);
        }

        ptWnd.x -= lpImeL->cxCompBorder + 1;
        ptWnd.y -= lpImeL->cyCompBorder + 1;

           CalcCandPos(hIMC, hUIWnd, &ptWnd);

        lpIMC->cfCandForm[0].dwStyle |= CFS_CANDIDATEPOS;
        lpIMC->cfCandForm[0].ptCurrentPos = ptWnd;
        ScreenToClient(lpIMC->hWnd, &lpIMC->cfCandForm[0].ptCurrentPos);
    }

    ImmUnlockIMC(hIMC);

    if (lpUIPrivate->hCandWnd) {
        SetWindowPos(lpUIPrivate->hCandWnd, 
                     NULL,
                     ptWnd.x, 
                     ptWnd.y,
                     0, 
                     0, 
                     SWP_NOACTIVATE|SWP_NOSIZE|SWP_NOZORDER);
    } else {
        lpUIPrivate->hCandWnd = CreateWindowEx(
                                     WS_EX_WINDOWEDGE|WS_EX_DLGMODALFRAME,
                                     szCandClassName, 
                                     NULL, 
                                     WS_POPUP|WS_DISABLED,
                                     ptWnd.x,
                                     ptWnd.y,
                                     sImeG.xCandWi, 
                                     sImeG.yCandHi,
                                     hUIWnd, 
                                     (HMENU)NULL, 
                                     hInst, 
                                     NULL);

        SetWindowLong(lpUIPrivate->hCandWnd, UI_MOVE_OFFSET, WINDOW_NOT_DRAG);
        SetWindowLong(lpUIPrivate->hCandWnd, UI_MOVE_XY, 0L);
    }

    ShowCand(hUIWnd, SW_SHOWNOACTIVATE);

OpenCandUnlockUIPriv:
    GlobalUnlock(hUIPrivate);
    return;
}

/**********************************************************************/
/* CloseCand                                                          */
/**********************************************************************/
void PASCAL CloseCand(
    HWND hUIWnd)
{
    uOpenCand = 0;
    ShowCand(hUIWnd, SW_HIDE);
    return;
}

/**********************************************************************/
/* DestroyCandWindow                                                  */
/**********************************************************************/
void PASCAL DestroyCandWindow(
    HWND hCandWnd)
{
    HGLOBAL  hUIPrivate;
    LPUIPRIV lpUIPrivate;

    if (GetWindowLong(hCandWnd, UI_MOVE_OFFSET) != WINDOW_NOT_DRAG) {
        // undo the drag border
        DrawDragBorder(hCandWnd,
            GetWindowLong(hCandWnd, UI_MOVE_XY),
            GetWindowLong(hCandWnd, UI_MOVE_OFFSET));
    }

    hUIPrivate = (HGLOBAL)GetWindowLongPtr(GetWindow(hCandWnd, GW_OWNER),
        IMMGWLP_PRIVATE);
    if (!hUIPrivate) {          // can not darw candidate window
        return;
    }

    lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
    if (!lpUIPrivate) {         // can not draw candidate window
        return;
    }

    lpUIPrivate->nShowCandCmd = SW_HIDE;

    lpUIPrivate->hCandWnd = (HWND)NULL;

    GlobalUnlock(hUIPrivate);
    return;
}

/**********************************************************************/
/* MouseSelectCandStr()                                               */
/**********************************************************************/
void PASCAL MouseSelectCandStr(
    HWND    hCandWnd,
    LPPOINT lpCursor)
{
    HIMC            hIMC;
    LPINPUTCONTEXT  lpIMC;
    LPCANDIDATEINFO lpCandInfo;
    LPCANDIDATELIST lpCandList;
    DWORD           dwValue;

    hIMC = (HIMC)GetWindowLongPtr(GetWindow(hCandWnd, GW_OWNER), IMMGWLP_IMC);
    if (!hIMC) {
        return;
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return;
    }

    if (!lpIMC->hCandInfo) {
        ImmUnlockIMC(hIMC);
        return;
    }

    lpCandInfo = (LPCANDIDATEINFO)ImmLockIMCC(lpIMC->hCandInfo);
    if (!lpCandInfo) {
        ImmUnlockIMC(hIMC);
        return;
    }

    dwValue = (lpCursor->y - sImeG.rcCandText.top) / sImeG.yChiCharHi;

    lpCandList = (LPCANDIDATELIST)((LPBYTE)lpCandInfo +
        lpCandInfo->dwOffset[0]);

    dwValue = dwValue + lpCandList->dwSelection /
        lpCandList->dwPageSize * lpCandList->dwPageSize;

    if (dwValue >= lpCandList->dwCount) {
        // invalid choice
        MessageBeep((UINT)-1);
    } else {
        NotifyIME(hIMC, NI_SELECTCANDIDATESTR, 0, dwValue);
    }

    ImmUnlockIMCC(lpIMC->hCandInfo);

    ImmUnlockIMC(hIMC);

    return;
}

/**********************************************************************/
/* CandPageDownUP()                                                   */
/**********************************************************************/
void PASCAL CandPageDownUP(
    HWND hCandWnd,
    UINT uCandDownUp)
{
    HIMC            hIMC;
    LPINPUTCONTEXT  lpIMC;
    LPPRIVCONTEXT   lpImcP;
    LPCANDIDATEINFO lpCandInfo;
    LPCANDIDATELIST lpCandList;
    HDC             hDC;
    HBITMAP         hCandHpBmp, hCandUpBmp, hCandDpBmp, hCandEpBmp;
    HBITMAP         hOldBmp;
    HDC             hMemDC;

    // change candlist
    hIMC = (HIMC)GetWindowLongPtr(GetWindow(hCandWnd, GW_OWNER), IMMGWLP_IMC);
    if (!hIMC) {
        return;
    }

    // get lpIMC
    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return;
    }

    // get lpImcP
    lpImcP = (LPPRIVCONTEXT)ImmLockIMCC(lpIMC->hPrivate);
    if (!lpImcP) {
        return;
    }

    // get lpCandInfo
    lpCandInfo = (LPCANDIDATEINFO)ImmLockIMCC(lpIMC->hCandInfo);

    if (!lpCandInfo) {
        return;
    }
                                                 
    // get lpCandList and init dwCount & dwSelection
    lpCandList = (LPCANDIDATELIST)
        ((LPBYTE)lpCandInfo + lpCandInfo->dwOffset[0]);
    
    switch(uCandDownUp) {
    case uCandHome:
        ChooseCand(0x24, lpIMC, lpCandInfo, lpImcP);
        NotifyIME(hIMC, NI_CHANGECANDIDATELIST, 0, 0);
        break;
    case uCandUp:
        ChooseCand('-', lpIMC, lpCandInfo, lpImcP);
        NotifyIME(hIMC, NI_CHANGECANDIDATELIST, 0, 0);
        break;
    case uCandDown:
        ChooseCand('=', lpIMC, lpCandInfo, lpImcP);
        NotifyIME(hIMC, NI_CHANGECANDIDATELIST, 0, 0);
        break;
    case uCandEnd:
        ChooseCand(0x23, lpIMC, lpCandInfo, lpImcP);
        NotifyIME(hIMC, NI_CHANGECANDIDATELIST, 0, 0);
        break;
    default:
        break;
    }

    ImmUnlockIMCC(lpIMC->hPrivate);
    ImmUnlockIMCC(lpIMC->hCandInfo);
    ImmUnlockIMC(hIMC);

    // draw button down
    hDC = GetDC(hCandWnd);
    if ( hDC == NULL )
       return;

    hMemDC = CreateCompatibleDC(hDC);
    
    if ( hMemDC == NULL )
    {
       ReleaseDC(hCandWnd, hDC); 
       return;
    }

    hOldBmp = NULL;

    switch(uCandDownUp) {
    case uCandHome:

        hCandHpBmp = LoadBitmap(hInst, TEXT("CandHp"));
        if ( hCandHpBmp != NULL)
        {
            hOldBmp = SelectObject(hMemDC, hCandHpBmp);
            BitBlt(hDC, sImeG.rcCandBTH.left, sImeG.rcCandBTH.top,
                   sImeG.rcCandBTH.right - sImeG.rcCandBTH.left,
                   STATUS_DIM_Y,
                   hMemDC, 0, 0, SRCCOPY);
            DeleteObject(hCandHpBmp);
        }
            
        break;
    case uCandUp:

        hCandUpBmp = LoadBitmap(hInst, TEXT("CandUp"));
        if ( hCandUpBmp != NULL )
        {
            hOldBmp = SelectObject(hMemDC, hCandUpBmp);
            BitBlt(hDC, sImeG.rcCandBTU.left, sImeG.rcCandBTU.top,
                sImeG.rcCandBTU.right - sImeG.rcCandBTU.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);
            DeleteObject(hCandUpBmp);
        }
        break;
    case uCandDown:
        hCandDpBmp = LoadBitmap(hInst, TEXT("CandDp"));
        if ( hCandDpBmp != NULL)
        {
            hOldBmp = SelectObject(hMemDC, hCandDpBmp);
            BitBlt(hDC, sImeG.rcCandBTD.left, sImeG.rcCandBTD.top,
                sImeG.rcCandBTD.right - sImeG.rcCandBTD.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);
            DeleteObject(hCandDpBmp);
        }
        break;
    case uCandEnd:
        hCandEpBmp = LoadBitmap(hInst, TEXT("CandEp"));
        if ( hCandEpBmp != NULL)
        {
            hOldBmp = SelectObject(hMemDC, hCandEpBmp);
            BitBlt(hDC, sImeG.rcCandBTE.left, sImeG.rcCandBTE.top,
                sImeG.rcCandBTE.right - sImeG.rcCandBTE.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);
            DeleteObject(hCandEpBmp);
        }
        break;
    default:
        break;
    }
       
    if ( hOldBmp != NULL) 
        SelectObject(hMemDC, hOldBmp);

    DeleteDC(hMemDC);
    ReleaseDC(hCandWnd, hDC);

    return;
}

/**********************************************************************/
/* CandSetCursor()                                                    */
/**********************************************************************/
void PASCAL CandSetCursor(
    HWND   hCandWnd,
    LPARAM lParam)
{
    POINT ptCursor;
    RECT  rcWnd;

    if (GetWindowLong(hCandWnd, UI_MOVE_OFFSET) !=
        WINDOW_NOT_DRAG) {
        SetCursor(LoadCursor(NULL, IDC_SIZEALL));
        return;
    }

    if (HIWORD(lParam) == WM_LBUTTONDOWN) {
        SystemParametersInfo(SPI_GETWORKAREA, 0, &sImeG.rcWorkArea, 0);

        GetCursorPos(&ptCursor);
        ScreenToClient(hCandWnd, &ptCursor);

        if (PtInRect(&sImeG.rcCandText, ptCursor)
           && sImeG.IC_Trace) {
            SetCursor(LoadCursor(hInst, szHandCursor));
            MouseSelectCandStr(hCandWnd, &ptCursor);
            return;
        } else if (PtInRect(&sImeG.rcCandBTH, ptCursor)) {
            CandPageDownUP(hCandWnd, uCandHome);
            return;
        } else if (PtInRect(&sImeG.rcCandBTU, ptCursor)) {
            CandPageDownUP(hCandWnd, uCandUp);
            return;
        } else if (PtInRect(&sImeG.rcCandBTD, ptCursor)) {
            CandPageDownUP(hCandWnd, uCandDown);
            return;
        } else if (PtInRect(&sImeG.rcCandBTE, ptCursor)) {
            CandPageDownUP(hCandWnd, uCandEnd);
            return;
        } else {
            SetCursor(LoadCursor(NULL, IDC_SIZEALL));
        }
    } else if (HIWORD(lParam) == WM_LBUTTONUP) {
        HDC             hDC;
        HBITMAP         hCandHBmp, hCandUBmp, hCandDBmp, hCandEBmp;
        HBITMAP         hOldBmp;
        HDC             hMemDC;

        hDC = GetDC(hCandWnd);

        hMemDC = CreateCompatibleDC(hDC);

        if ( hMemDC )
        {

            hCandHBmp = LoadBitmap(hInst, TEXT("CandH"));

            if ( hCandHBmp )
            {
                hOldBmp = SelectObject(hMemDC, hCandHBmp);
                BitBlt(hDC, sImeG.rcCandBTH.left, sImeG.rcCandBTH.top,
                    sImeG.rcCandBTH.right - sImeG.rcCandBTH.left,
                    STATUS_DIM_Y,
                    hMemDC, 0, 0, SRCCOPY);
                SelectObject(hMemDC, hOldBmp);

                DeleteObject(hCandHBmp);
            }


            hCandUBmp = LoadBitmap(hInst, TEXT("CandU"));

            if ( hCandUBmp )
            {

                hOldBmp=SelectObject(hMemDC, hCandUBmp);
                BitBlt(hDC, sImeG.rcCandBTU.left, sImeG.rcCandBTU.top,
                    sImeG.rcCandBTU.right - sImeG.rcCandBTU.left,
                    STATUS_DIM_Y,
                    hMemDC, 0, 0, SRCCOPY);
                SelectObject(hMemDC, hOldBmp);

                DeleteObject(hCandUBmp);
            }

            hCandDBmp = LoadBitmap(hInst, TEXT("CandD"));
            
            if ( hCandDBmp )
            {
                hOldBmp=SelectObject(hMemDC, hCandDBmp);
                BitBlt(hDC, sImeG.rcCandBTD.left, sImeG.rcCandBTD.top,
                    sImeG.rcCandBTD.right - sImeG.rcCandBTD.left,
                    STATUS_DIM_Y,
                    hMemDC, 0, 0, SRCCOPY);
                SelectObject(hMemDC, hOldBmp);
                DeleteObject(hCandDBmp);
            }


            hCandEBmp = LoadBitmap(hInst, TEXT("CandE"));

            if ( hCandEBmp )
            {

                hOldBmp=SelectObject(hMemDC, hCandEBmp);
                BitBlt(hDC, sImeG.rcCandBTE.left, sImeG.rcCandBTE.top,
                    sImeG.rcCandBTE.right - sImeG.rcCandBTE.left,
                    STATUS_DIM_Y,
                    hMemDC, 0, 0, SRCCOPY);

                SelectObject(hMemDC, hOldBmp);
                DeleteObject(hCandEBmp);
            }

            DeleteDC(hMemDC);
        }


        ReleaseDC(hCandWnd, hDC);

        return;
    } else {
        SystemParametersInfo(SPI_GETWORKAREA, 0, &sImeG.rcWorkArea, 0);

        GetCursorPos(&ptCursor);
        ScreenToClient(hCandWnd, &ptCursor);

        if (PtInRect(&sImeG.rcCandText, ptCursor)) {
            SetCursor(LoadCursor(hInst, szHandCursor));
            return;
        } else if (PtInRect(&sImeG.rcCandBTH, ptCursor)) {
            SetCursor(LoadCursor(hInst, szHandCursor));
        } else if (PtInRect(&sImeG.rcCandBTU, ptCursor)) {
            SetCursor(LoadCursor(hInst, szHandCursor));
        } else if (PtInRect(&sImeG.rcCandBTD, ptCursor)) {
            SetCursor(LoadCursor(hInst, szHandCursor));
        } else if (PtInRect(&sImeG.rcCandBTE, ptCursor)) {
            SetCursor(LoadCursor(hInst, szHandCursor));
        } else {
            SetCursor(LoadCursor(NULL, IDC_SIZEALL));
        }

        return;
    }

    SetCapture(hCandWnd);
    GetCursorPos(&ptCursor);
    SetWindowLong(hCandWnd, UI_MOVE_XY,
        MAKELONG(ptCursor.x, ptCursor.y));
    GetWindowRect(hCandWnd, &rcWnd);
    SetWindowLong(hCandWnd, UI_MOVE_OFFSET,
        MAKELONG(ptCursor.x - rcWnd.left, ptCursor.y - rcWnd.top));

    DrawDragBorder(hCandWnd, MAKELONG(ptCursor.x, ptCursor.y),
        GetWindowLong(hCandWnd, UI_MOVE_OFFSET));

    return;
}

/**********************************************************************/
/* CandButtonUp()                                                     */
/**********************************************************************/
BOOL PASCAL CandButtonUp(
    HWND hCandWnd)
{
    LONG           lTmpCursor, lTmpOffset;
    POINT          pt;
    HWND           hUIWnd;
    HIMC           hIMC;
    LPINPUTCONTEXT lpIMC;

    if (GetWindowLong(hCandWnd, UI_MOVE_OFFSET) == WINDOW_NOT_DRAG) {
        return (FALSE);
    }

    lTmpCursor = GetWindowLong(hCandWnd, UI_MOVE_XY);

    // calculate the org by the offset
    lTmpOffset = GetWindowLong(hCandWnd, UI_MOVE_OFFSET);

    pt.x = (*(LPPOINTS)&lTmpCursor).x - (*(LPPOINTS)&lTmpOffset).x;
    pt.y = (*(LPPOINTS)&lTmpCursor).y - (*(LPPOINTS)&lTmpOffset).y;

    DrawDragBorder(hCandWnd, lTmpCursor, lTmpOffset);
    SetWindowLong(hCandWnd, UI_MOVE_OFFSET, WINDOW_NOT_DRAG);
    ReleaseCapture();

    hUIWnd = GetWindow(hCandWnd, GW_OWNER);

    hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
    if (!hIMC) {
        return (FALSE);
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return (FALSE);
    }

    AdjustCandBoundry(&pt);

    ScreenToClient(lpIMC->hWnd, &pt);

    lpIMC->cfCandForm[0].dwStyle |= CFS_CANDIDATEPOS;
    lpIMC->cfCandForm[0].ptCurrentPos = pt;

    ImmUnlockIMC(hIMC);

    PostMessage(hCandWnd, WM_IME_NOTIFY, IMN_SETCANDIDATEPOS, 0x0001);

    return (TRUE);
}

/**********************************************************************/
/* UpdateCandWindow()                                                 */
/**********************************************************************/
void PASCAL PaintCandWindow(
    HWND hCandWnd,
    HDC  hDC)
{
    HIMC            hIMC;
    LPINPUTCONTEXT  lpIMC;
    LPCANDIDATEINFO lpCandInfo;
    LPCANDIDATELIST lpCandList;
    LPPRIVCONTEXT   lpImcP;
    HGDIOBJ         hOldFont;
    DWORD           dwStart, dwEnd;
    TCHAR           szStrBuf[2 * MAXSTRLEN * sizeof(WCHAR) / sizeof(TCHAR) + 1];
    int             i;
    HBITMAP         hCandIconBmp, hCandInfBmp;
    HBITMAP         hOldBmp, hCandHBmp, hCandUBmp, hCandDBmp, hCandEBmp;
    HDC             hMemDC;

    hIMC = (HIMC)GetWindowLongPtr(GetWindow(hCandWnd, GW_OWNER), IMMGWLP_IMC);
    if (!hIMC) {
        return;
    }

    lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
    if (!lpIMC) {
        return;
    }

    if (!lpIMC->hCandInfo) {
        goto UpCandW2UnlockIMC;
    }

    lpCandInfo = (LPCANDIDATEINFO)ImmLockIMCC(lpIMC->hCandInfo);
    if (!lpCandInfo) {
        goto UpCandW2UnlockIMC;
    }

    if (!lpIMC->hPrivate) {
        goto UpCandW2UnlockCandInfo;
    }

    lpImcP = (LPPRIVCONTEXT)ImmLockIMCC(lpIMC->hPrivate);
    if (!lpImcP) {
        goto UpCandW2UnlockCandInfo;
    }

    // set font
    if (sImeG.fDiffSysCharSet) {
        LOGFONT lfFont;
        ZeroMemory(&lfFont, sizeof(lfFont));
        hOldFont = GetCurrentObject(hDC, OBJ_FONT);
        lfFont.lfHeight = -MulDiv(12, GetDeviceCaps(hDC, LOGPIXELSY), 72);
        lfFont.lfCharSet = NATIVE_CHARSET;
        lstrcpy(lfFont.lfFaceName, TEXT("Simsun"));
        SelectObject(hDC, CreateFontIndirect(&lfFont));
    }

    lpCandList = (LPCANDIDATELIST)((LPBYTE)lpCandInfo +
        lpCandInfo->dwOffset[0]);

    dwStart = lpCandList->dwSelection;
    dwEnd = dwStart + lpCandList->dwPageSize;

    if (dwEnd > lpCandList->dwCount) {
        dwEnd = lpCandList->dwCount;
    }

    // draw CandWnd Layout
    if (sImeG.IC_Trace) {
        RECT rcWnd;

        GetClientRect(hCandWnd, &rcWnd);
        DrawConcaveRect(hDC,
            rcWnd.left,
            rcWnd.top + UI_CANDINF,
            rcWnd.right - 1,
            rcWnd.bottom - 1);
    } else {
        RECT rcWnd;

        GetClientRect(hCandWnd, &rcWnd);
        DrawConcaveRect(hDC,
            sImeG.rcCandText.left - 1,
            rcWnd.top,
            sImeG.rcCandText.right + 1,
            rcWnd.bottom - 1);
    }

    SetTextColor(hDC, RGB(0x00, 0x00, 0x00));
    SetBkColor(hDC, RGB(0xC0, 0xC0, 0xC0));

    if (sImeG.IC_Trace) {
        ExtTextOut(hDC, sImeG.rcCandText.left, sImeG.rcCandText.top,
            ETO_OPAQUE, &sImeG.rcCandText, NULL, 0, NULL);
        szStrBuf[0] = TEXT('1');
        szStrBuf[1] = TEXT(':');

        for (i = 0; dwStart < dwEnd; dwStart++, i++) {
            int  iLen;

            iLen = 0;

            szStrBuf[0] = szDigit[i + CAND_START];

#if defined(COMBO_IME)
            if(sImeL.dwRegImeIndex == INDEX_GB || sImeL.dwRegImeIndex == INDEX_GBK){
                iLen = lstrlen((LPTSTR)((LPBYTE)lpCandList +
                    lpCandList->dwOffset[dwStart]));

                if (iLen > 10 * 2 / sizeof(TCHAR)) {
                    iLen = 10 * 2 / sizeof(TCHAR);
                    CopyMemory(&szStrBuf[2],
                        ((LPTSTR)((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart])),
                        (iLen - 2) * sizeof(TCHAR));
                    // maybe not good for UNICODE
                    szStrBuf[iLen] = TEXT('.');
                    szStrBuf[iLen+1] = TEXT('.');
                    szStrBuf[iLen+2] = TEXT('\0');
                } else {
                    CopyMemory(&szStrBuf[2],
                        (LPTSTR)((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart]),
                        iLen*sizeof(TCHAR));
                }
            }else if(sImeL.dwRegImeIndex == INDEX_UNICODE){
                WORD  wCode;
                wCode = *(LPUNAWORD)((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart]);

#ifdef UNICODE
                szStrBuf[2]= wCode;
                szStrBuf[3]=TEXT('\0');
#else
                szStrBuf[2]= LOBYTE(wCode);
                szStrBuf[3]= HIBYTE(wCode);
                szStrBuf[4]=TEXT('\0');
#endif
                iLen = 2/sizeof(TCHAR);
            }

#else
            iLen = lstrlen((LPTSTR)((LPBYTE)lpCandList +
                lpCandList->dwOffset[dwStart]));

            if (iLen > 10 * 2 / sizeof(TCHAR)) {
                iLen = 10 * 2 / sizeof(TCHAR);
                CopyMemory(&szStrBuf[2],
                    ((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart]),
                    (iLen - 2) * sizeof(TCHAR));
                szStrBuf[iLen] = TEXT('.');
                szStrBuf[iLen+1] = TEXT('.');
                szStrBuf[iLen+2] = TEXT('\0');
            } else {
                CopyMemory(&szStrBuf[2],
                    ((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart]),
                    iLen*sizeof(TCHAR));
            }
#endif //COMBO_IME

            ExtTextOut(hDC, sImeG.rcCandText.left,
                sImeG.rcCandText.top + i * sImeG.yChiCharHi,
                (UINT)0, NULL,
                szStrBuf,
                iLen + 2, NULL);
    
           // QW/GB info
           {

             int   iMyLen;
             WORD  wCode, wGB;
             TCHAR  AbSeq[5];
             TCHAR  GbSeq[5];
             TCHAR szMyStrBuf[12 * sizeof(WCHAR) / sizeof(TCHAR)];
             RECT  GBARInfo;

#ifdef UNICODE


             wCode = *(LPUNAWORD)((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart]);
             AbSeq[0] = wCode;
             AbSeq[1] = TEXT('\0');
             //  change the CP_ACP to 936, so that it can work under Multilingul Env.
             WideCharToMultiByte(NATIVE_ANSI_CP, WC_COMPOSITECHECK, AbSeq, 1, (BYTE*)GbSeq, sizeof(GbSeq), NULL, NULL);
                          
             wGB = HIBYTE(GbSeq[0]) | (LOBYTE(GbSeq[0]) << 8);

             wsprintf (GbSeq,TEXT("%04lx"),wGB);    // get GB string
             wGB -= 0xa0a0;
             wsprintf (AbSeq,TEXT("%02d%02d"),HIBYTE(wGB),LOBYTE(wGB));
#else
             wCode = *(LPUNAWORD)((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart]);
             MultiByteToWideChar(CP_ACP, NULL, &wCode, 2, &wGB, 1);    
                          
             wCode = HIBYTE(wCode) | (LOBYTE(wCode) << 8);

             wsprintf (GbSeq,"%04lx",wCode);    // get GB string
            
             wCode -= 0xa0a0;

             wsprintf (AbSeq,"%02d%02d",HIBYTE(wCode),LOBYTE(wCode));
#endif
//             if (lpImcP->fdwGB & IME_SELECT_GB) {
#if defined(COMBO_IME)
        switch(sImeL.dwRegImeIndex){
        case INDEX_GB:
                lstrcpy (szMyStrBuf,TEXT("("));
                lstrcat (szMyStrBuf,GbSeq);
                lstrcat (szMyStrBuf,TEXT(", "));
                lstrcat (szMyStrBuf,AbSeq);
                lstrcat (szMyStrBuf,TEXT(")"));
                iMyLen = 12;

            break;
        case INDEX_GBK:
                lstrcpy (szMyStrBuf,TEXT("    "));
                lstrcat (szMyStrBuf,TEXT("("));
                lstrcat (szMyStrBuf,GbSeq);
                lstrcat (szMyStrBuf,TEXT(")"));
                iMyLen = 10;

            break;
        case INDEX_UNICODE:        //adjust code display info
                lstrcpy (szMyStrBuf,TEXT("("));
                lstrcat (szMyStrBuf,GbSeq);
                lstrcat (szMyStrBuf,TEXT(", "));
                wsprintf (AbSeq,TEXT("%04lx"),wCode);
                lstrcat (szMyStrBuf, AbSeq);
                lstrcat (szMyStrBuf,TEXT(")"));
                iMyLen = lstrlen(szMyStrBuf);
            break;
        }
#else //COMBO_IME
#ifdef GB
                lstrcpy (szMyStrBuf,TEXT("("));
                lstrcat (szMyStrBuf,GbSeq);
                lstrcat (szMyStrBuf,TEXT(", "));
                lstrcat (szMyStrBuf,AbSeq);
                lstrcat (szMyStrBuf,TEXT(")"));
                iMyLen = 12;

#else
                lstrcpy (szMyStrBuf,TEXT("    "));
                lstrcat (szMyStrBuf,TEXT("("));
                lstrcat (szMyStrBuf,GbSeq);
                lstrcat (szMyStrBuf,TEXT(")"));
                iMyLen = 10;

#endif //GB        
#endif //COMBO_IME
        
             GBARInfo.top = sImeG.rcCandText.top + i * sImeG.yChiCharHi;
             GBARInfo.left = sImeG.rcCandText.left;
             GBARInfo.right = sImeG.rcCandText.right;
             GBARInfo.bottom = sImeG.rcCandText.bottom;
             DrawText(hDC, szMyStrBuf, lstrlen(szMyStrBuf),
                     &GBARInfo, DT_RIGHT | DT_SINGLELINE);
           }
        }

    } else {
        int  nX;

        ExtTextOut(hDC, sImeG.rcCandText.left, sImeG.rcCandText.top + 1,
            ETO_OPAQUE, &sImeG.rcCandText, NULL, 0, NULL);
        nX = 0;
        for (i = 0; dwStart < dwEnd; dwStart++, i++) {
            int  iLen;
            int j, k;
            TCHAR AnsiStr[MAXCODE+1];
            SIZE StrSize;

            // display numbers
            AnsiStr[0] = szDigit[i + CAND_START];
            AnsiStr[1] = TEXT(':');
            AnsiStr[2] = 0;
            ExtTextOut(hDC, sImeG.rcCandText.left + nX,
                    sImeG.rcCandText.top + 1,
                    ETO_CLIPPED, &sImeG.rcCandText,
                    AnsiStr,
                    lstrlen(AnsiStr), NULL);
            if(!GetTextExtentPoint(hDC, (LPCTSTR)AnsiStr, lstrlen(AnsiStr), &StrSize))
                memset(&StrSize, 0, sizeof(SIZE));
            nX += StrSize.cx;

            // display chinese word and code
            iLen = lstrlen((LPTSTR)((LPBYTE)lpCandList +
                lpCandList->dwOffset[dwStart]));

            CopyMemory(szStrBuf,
                ((LPBYTE)lpCandList + lpCandList->dwOffset[dwStart]),
                iLen*sizeof(TCHAR));

            for(j=0; j<iLen; j++) {
#ifdef UNICODE
                if(szStrBuf[j] > 0x100) {
#else
                if(szStrBuf[j] & 0x80) {
#endif
                    j++;
                    continue;
                }
                break;
            }
            
            k = j-1;
            for(j=0; j<iLen - k; j++) {
                AnsiStr[j] = szStrBuf[j+k];
            }
            AnsiStr[j] = 0;
            szStrBuf[k] = 0;


            ExtTextOut(hDC, sImeG.rcCandText.left + nX,
                    sImeG.rcCandText.top + 1,
                    ETO_CLIPPED, &sImeG.rcCandText,
                    szStrBuf,
                    lstrlen(szStrBuf), NULL);

            if(!GetTextExtentPoint(hDC, (LPCTSTR)szStrBuf, lstrlen(szStrBuf), &StrSize))
                memset(&StrSize, 0, sizeof(SIZE));
            nX += StrSize.cx;

            ExtTextOut(hDC, sImeG.rcCandText.left + nX,
                    sImeG.rcCandText.top + 1,
                    ETO_CLIPPED, &sImeG.rcCandText,
                    AnsiStr,
                    lstrlen(AnsiStr), NULL);

            if(!GetTextExtentPoint(hDC, (LPCTSTR)AnsiStr, lstrlen(AnsiStr), &StrSize))
                memset(&StrSize, 0, sizeof(SIZE));
            nX += StrSize.cx;

        }
    }
    
    // load all bitmap
    if (sImeG.IC_Trace) {
        hCandInfBmp = LoadBitmap(hInst, TEXT("Candinf"));
    } else {
        hCandInfBmp = NULL;
    }


    hMemDC = CreateCompatibleDC(hDC);

    if ( hMemDC != NULL )
    {

        hCandIconBmp = LoadBitmap(hInst, TEXT("CandSel"));

        if ( hCandIconBmp )
        {

            hOldBmp = SelectObject(hMemDC, hCandIconBmp);

            BitBlt(hDC, sImeG.rcCandIcon.left, sImeG.rcCandIcon.top,
                sImeG.rcCandIcon.right - sImeG.rcCandIcon.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);

            SelectObject(hMemDC, hOldBmp);

            DeleteObject(hCandIconBmp);
        }

        if(hCandInfBmp) {
            
            hOldBmp = SelectObject(hMemDC, hCandInfBmp);

            BitBlt(hDC, sImeG.rcCandInf.left, sImeG.rcCandInf.top,
                sImeG.rcCandInf.right - sImeG.rcCandInf.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);

            SelectObject(hMemDC, hOldBmp);
        }

        hCandHBmp = LoadBitmap(hInst, TEXT("CandH"));

        if ( hCandHBmp )
        {
            hOldBmp = SelectObject(hMemDC, hCandHBmp);

            BitBlt(hDC, sImeG.rcCandBTH.left, sImeG.rcCandBTH.top,
                sImeG.rcCandBTH.right - sImeG.rcCandBTH.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);

            SelectObject(hMemDC, hOldBmp);

            DeleteObject(hCandHBmp);
        }


        hCandUBmp = LoadBitmap(hInst, TEXT("CandU"));

        if ( hCandUBmp )
        {
            hOldBmp = SelectObject(hMemDC, hCandUBmp);

            BitBlt(hDC, sImeG.rcCandBTU.left, sImeG.rcCandBTU.top,
                sImeG.rcCandBTU.right - sImeG.rcCandBTU.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);

            SelectObject(hMemDC, hOldBmp);

            DeleteObject(hCandUBmp);
        }


        hCandDBmp = LoadBitmap(hInst, TEXT("CandD"));
        
        if ( hCandDBmp )
        {

            hOldBmp = SelectObject(hMemDC, hCandDBmp);

            BitBlt(hDC, sImeG.rcCandBTD.left, sImeG.rcCandBTD.top,
                sImeG.rcCandBTD.right - sImeG.rcCandBTD.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);

            SelectObject(hMemDC, hOldBmp);

            DeleteObject(hCandDBmp);
        }

        hCandEBmp = LoadBitmap(hInst, TEXT("CandE"));
        
        if ( hCandEBmp )
        {
            hOldBmp = SelectObject(hMemDC, hCandEBmp);

            BitBlt(hDC, sImeG.rcCandBTE.left, sImeG.rcCandBTE.top,
                sImeG.rcCandBTE.right - sImeG.rcCandBTE.left,
                STATUS_DIM_Y,
                hMemDC, 0, 0, SRCCOPY);

            SelectObject(hMemDC, hOldBmp);
            
            DeleteObject(hCandEBmp);
        }
        
        DeleteDC(hMemDC);

    }

    if ( hCandInfBmp )
        DeleteObject(hCandInfBmp);

    if (sImeG.fDiffSysCharSet) {
        DeleteObject(SelectObject(hDC, hOldFont));
    }

    ImmUnlockIMCC(lpIMC->hPrivate);
UpCandW2UnlockCandInfo:
    ImmUnlockIMCC(lpIMC->hCandInfo);
UpCandW2UnlockIMC:
    ImmUnlockIMC(hIMC);

    return;
}

/**********************************************************************/
/* CandWndProc()                                                      */
/**********************************************************************/
LRESULT CALLBACK CandWndProc(
    HWND   hCandWnd,
    UINT   uMsg,
    WPARAM wParam,
    LPARAM lParam)
{
    switch (uMsg) {
    case WM_DESTROY:
        DestroyCandWindow(hCandWnd);
        break;
    case WM_SETCURSOR:
        CandSetCursor(hCandWnd, lParam);
        break;
    case WM_MOUSEMOVE:
        if (GetWindowLong(hCandWnd, UI_MOVE_OFFSET) != WINDOW_NOT_DRAG) {
            POINT ptCursor;

            DrawDragBorder(hCandWnd,
                GetWindowLong(hCandWnd, UI_MOVE_XY),
                GetWindowLong(hCandWnd, UI_MOVE_OFFSET));
            GetCursorPos(&ptCursor);
            SetWindowLong(hCandWnd, UI_MOVE_XY,
                MAKELONG(ptCursor.x, ptCursor.y));
            DrawDragBorder(hCandWnd, MAKELONG(ptCursor.x, ptCursor.y),
                GetWindowLong(hCandWnd, UI_MOVE_OFFSET));
        } else {
            return DefWindowProc(hCandWnd, uMsg, wParam, lParam);
        }
        break;
    case WM_LBUTTONUP:
        if (!CandButtonUp(hCandWnd)) {
            return DefWindowProc(hCandWnd, uMsg, wParam, lParam);
        }
        break;
    case WM_IME_NOTIFY:
        if (wParam == IMN_SETCANDIDATEPOS) {
            return SetCandPosition(hCandWnd);
        }
        break;
    case WM_PAINT:
        {
            HDC         hDC;
            PAINTSTRUCT ps;

            hDC = BeginPaint(hCandWnd, &ps);
            PaintCandWindow(hCandWnd, hDC);
            EndPaint(hCandWnd, &ps);
        }
        break;
    case WM_MOUSEACTIVATE:
        return (MA_NOACTIVATE);
    default:
        return DefWindowProc(hCandWnd, uMsg, wParam, lParam);
    }

    return (0L);
}