References ▼
#include "l_bitmap.h"
L_LTIVW_API L_INT EXT_FUNCTION L_DispContainerFreezeSubCell(hCellWnd, nSubCellIndex, bFreeze, uFlags)
Freezes the sub-cell with the specified index.
A handle to the window that represents the cell on which the function's effect will be applied.
A zero-based index into the image list attached to the cell specified in nCellIndex. This sub-cell will be toggled to frozen or not frozen. Pass -1 to apply this effect on all sub-cells. Pass -2 to apply this effect on the selected sub-cell.
Flag that indicates whether to freeze or unfreeze the sub-cell at the specified index. Possible values are:
| Value | Meaning |
|---|---|
| TRUE | Freeze the sub-cell. |
| FALSE | Unfreeze the sub-cell. |
Reserved for future use. Pass 0.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
The properties of a frozen sub-cell cannot be modified except by manually setting them using L_DispContainerSetActionProperties function.
To determine whether a sub-cell is frozen, call the L_DispContainerIsSubCellFrozen function. To determine whether a cell is frozen, call L_DispContainerIsCellFrozen function.
To freeze all cells call L_DispContainerFreezeCell function.
Required DLLs and Libraries
Platforms
The toolkit comes in Win32 and x64 editions that can support development of software applications for any of the following environments:
Windows 10
Windows 8
Windows 7
Windows Vista
Windows XP
Windows 2000
This example will freeze the even subcell and then type the word frozen in the middle of the frozen sub-cells.
L_INT EXT_CALLBACK PostPaintCallBack (HWND hCellWnd,pDISPCONTAINERCELLINFO pCellInfo,L_VOID * pUserData){UNREFERENCED_PARAMETER(hCellWnd);UNREFERENCED_PARAMETER(pUserData);if (L_DispContainerIsSubCellFrozen(hCellWnd, pCellInfo->nSubCellIndex, 0)){HPEN hPen = CreatePen(PS_SOLID, 2, RGB(255, 0, 0));HPEN hOldPen = SelectPen(pCellInfo->hDC, hPen);MoveToEx(pCellInfo->hDC, pCellInfo->rcRect.left, pCellInfo->rcRect.top, NULL);LineTo(pCellInfo->hDC, pCellInfo->rcRect.right, pCellInfo->rcRect.bottom);MoveToEx(pCellInfo->hDC, pCellInfo->rcRect.right, pCellInfo->rcRect.top, NULL);LineTo(pCellInfo->hDC, pCellInfo->rcRect.left, pCellInfo->rcRect.bottom);SelectPen(pCellInfo->hDC, hOldPen);DeletePen(hPen);}return SUCCESS;}L_INT DispContainerFreezeSubCellExample(HDISPCONTAINER hCon){L_INT nRet;HBITMAPLIST hBitmapList;L_INT nCount;L_INT nI;DISPCONTAINERPOSTPAINTCALLBACK oldCallBack;L_VOID * pOldUserData;if (L_DispContainerGetCellCount(hCon, 0) == 0){MessageBox(NULL, TEXT("you must at least have one cell added to the viewer"), TEXT("No Cell attached"), MB_OK);return FAILURE;}HWND hCellWnd = L_DispContainerGetCellWindowHandle(hCon, 0, 0);nRet = L_DispContainerGetCellBitmapList(hCellWnd, &hBitmapList, 0);if (nRet != SUCCESS)return nRet;L_GetBitmapListCount(hBitmapList, (L_UINT *)&nCount);for (nI = 0; nI < nCount; nI++){if (((nI >> 1) << 1) == nI )L_DispContainerFreezeSubCell(hCellWnd, nI, TRUE, 0);}L_DispContainerGetPostPaintCallBack(hCellWnd, &oldCallBack, &pOldUserData);L_DispContainerSetPostPaintCallBack(hCellWnd, PostPaintCallBack, (L_VOID *)hCon);L_DispContainerRepaintCell(hCellWnd, 0);return SUCCESS;}