#include "l_bitmap.h"

L_LTIVW_API L_INT EXT_FUNCTION L_DispContainerFreezeSubCell(hCellWnd, nSubCellIndex, bFreeze, uFlags)

L_HWND hCellWnd;

handle to the cell window

L_INT nSubCellIndex;

index into the image list attached to the cell

L_BOOL bFreeze;


L_UINT uFlags;

reserved for future use

Freezes the sub-cell with the specified index.

Parameter Description
hCellWnd A handle to the window that represents the cell on which the function's effect will be applied.
nSubCellIndex 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.
bFreeze 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.
uFlags Reserved for future use. Pass 0.



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


For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.


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

See Also


L_DispContainerIsSubCellFrozen, L_DispContainerIsCellFrozen, L_DispContainerFreezeCell, L_DispContainerCreate, L_DispContainerRemoveCell, L_DispContainerInsertCell, L_DispContainerGetCellCount, L_DispContainerGetCellWindowHandle, L_DispContainerSetCellTag, L_DispContainerSetCellProperties, L_DispContainerGetCellProperties, L_DispContainerRepositionCell, L_DispContainerGetCellPosition, L_DispContainerSetCellBitmapList, L_DispContainerGetCellBitmapList, L_DispContainerGetCellBounds, L_DispContainerSelectCell, L_DispContainerIsCellSelected


Image Viewer Cells


Image Viewer Functions: Image Viewer Cells


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, 
L_VOID *               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); 
   return SUCCESS; 
L_INT DispContainerFreezeSubCellExample(HDISPCONTAINER hCon) 
   L_INT       nRet; 
   HBITMAPLIST hBitmapList; 
   L_INT       nCount; 
   L_INT       nI; 
   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; 

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