Help Version 19.0.2017.10.27
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#include "l_bitmap.h"
L_LTIVW_API L_INT EXT_FUNCTION L_DispContainerGetRegionCallBack(hCellWnd, ppfnCallBack, ppUserData)
L_HWND hCellWnd; |
handle to the cell window |
DISPCONTAINERREGIONCALLBACK * ppfnCallBack; |
pointer to the callback function |
LPVOID * ppUserData; |
pointer to be updated with user data |
Gets the current action callback function along with the user data, which were set using L_DispContainerSetRegionCallBack.
Parameter |
Description |
hCellWnd |
A handle to the window that represents the Medical Viewer Cell. |
ppfnCallBack |
Pointer to a pointer to a callback function to be updated with the last pre-paint callback function set using L_DispContainerSetPrePaintCallBack. |
ppUserData |
Void pointer to be updated with the value of user defined data associated with the tag callback. If you are not interested in the user-defined data, pass NULL for this parameter. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Required DLLs and Libraries
LTIVW |
This function will make the cell set the region handle for all the frame if the user create or updated a region on one of hte frames.
L_INT EXT_CALLBACK RegionCallBack(HWND hCellWnd,HRGN hRgn,L_INT nCellIndex,L_INT nSubCellIndex,L_UINT uOperation,L_VOID * pUserData){UNREFERENCED_PARAMETER(hRgn);UNREFERENCED_PARAMETER(nCellIndex);UNREFERENCED_PARAMETER(uOperation);UNREFERENCED_PARAMETER(pUserData);L_INT nCount;HBITMAPLIST hBitmapList;L_HRGN hSubCellRgn;L_INT nI;L_INT nRet = L_DispContainerGetCellBitmapList(hCellWnd, &hBitmapList, 0);if (nRet != SUCCESS)return nRet;L_GetBitmapListCount(hBitmapList, (L_UINT *)&nCount);L_DispContainerGetCellRegionHandle(hCellWnd, nSubCellIndex, &hSubCellRgn, 0);for (nI = 0; nI < nCount; nI++){if (nSubCellIndex == nI)continue;L_DispContainerSetCellRegionHandle(hCellWnd, nI, hSubCellRgn, L_RGN_SET, 0);}DeleteRgn(hSubCellRgn);return SUCCESS;}L_INT DispContainerRegionHandleExample(HDISPCONTAINER hCon){DISPCONTAINERREGIONCALLBACK oldCallBack;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);L_DispContainerGetRegionCallBack(hCellWnd, &oldCallBack, NULL);L_DispContainerSetRegionCallBack(hCellWnd, RegionCallBack, hCon);return SUCCESS;}