L_DispContainerGetActiveSubCellChangedCallBack

#include "l_bitmap.h"

L_LTIVW_API L_INT EXT_FUNCTION L_DispContainerGetActiveSubCellChangedCallBack (hCellWnd, ppfnCallBack, ppUserData)

L_HWND hCellWnd;	handle to the cell window
DISPCONTAINERACTIVESUBCELLCHANGED * ppfnCallBack;	pointer to the callback function
LPVOID * ppUserData;	pointer to be updated with user data

Gets a callback function that is called every time the user changes the active sub-cell.

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 active sub-cell changed callback function set using L_DispContainerGetActiveSubCellChangedCallBack.
ppUserData	Void pointer to be updated with the value of user defined data associated with the status callback. If you are not interested in the user-defined data, pass NULL for this parameter.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function gets the active sub-cell changed callback. To set the active sub-cell changed callback use L_DispContainerSetActiveSubCellChangedCallBack.

Required DLLs and Libraries

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

Example

This example will link the active sub-cell of the first cell to the second cell and vice versa.

L_INT EXT_FUNCTION ActiveSubCellChangedCallBack(HWND hCellWnd, 
L_INT    nCellIndex, 
L_INT    nSubCellIndex, 
L_INT    nPreviousSubCellIndex, 
L_VOID * pUserData) 
{ 
   UNREFERENCED_PARAMETER(nPreviousSubCellIndex); 
   HDISPCONTAINER hCon = (HDISPCONTAINER)pUserData; 
   UNREFERENCED_PARAMETER(pUserData); 
   DISPSTACKACTIONPROPS ActionProperties; 
   DISPCELLPROPERTIES CellProp; 
   CellProp.uStructSize = sizeof(DISPCELLPROPERTIES); 
   CellProp.uMask = DCCELLPF_ROWS | DCCELLPF_COLS; 
   L_INT nIndex = (nCellIndex == 1) ? 0 : 1; 
   hCellWnd = L_DispContainerGetCellWindowHandle(hCon, nIndex, 0); 
   ActionProperties.DispContainerActionProps.uStructSize = sizeof(DISPSTACKACTIONPROPS); 
   L_DispContainerGetActionProperties(hCellWnd, CONTAINER_ACTION_STACK, 0, &ActionProperties, 0); 
   L_DispContainerGetCellProperties(hCellWnd, &CellProp, 0); 
   ActionProperties.nActiveSubCell = nSubCellIndex % (CellProp.uNumCols * CellProp.uNumRows); 
   ActionProperties.nScrollValue = nSubCellIndex - ActionProperties.nActiveSubCell; 
   L_DispContainerSetActionProperties(hCellWnd, CONTAINER_ACTION_STACK, 0, &ActionProperties, CONTAINER_ACTION_CELLLEVEL); 
   return SUCCESS; 
} 
L_INT DispContainerActiveSubCellChangedExample(HDISPCONTAINER hCon) 
{ 
   DISPCONTAINERACTIVESUBCELLCHANGED 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); 
   L_DispContainerGetActiveSubCellChangedCallBack(hCellWnd, &oldCallBack, &pOldUserData); 
   L_DispContainerSetActiveSubCellChangedCallBack(hCellWnd, ActiveSubCellChangedCallBack, hCon); 
   return SUCCESS; 
}

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Call Back Functions

Functions:	L_DispContainerGetActiveSubCell, L_DispContainerSetRegionCallBack, L_DispContainerGetRegionCallBack, L_DispContainerSetMouseCallBack, L_DispContainerSetActionCallBack, L_DispContainerSetTagCallBack, L_DispContainerGetTagCallBack, L_DispContainerSetAnnotationCallBack, L_DispContainerGetAnnotationCallBack, L_DispContainerGetAnnotationCreatedCallBack, L_DispContainerSetAnnotationCreatedCallBack, L_DispContainerSetPrePaintCallBack, L_DispContainerGetPrePaintCallBack, DISPCONTAINERPREPAINTCALLBACK, L_DispContainerGetPostPaintCallBack, L_DispContainerSetPostPaintCallBack, DISPCONTAINERPOSTPAINTCALLBACK, DISPCONTAINERANNOTATIONCALLBACK, DISPCONTAINERANNOTATIONCREATEDCALLBACK, DISPCONTAINERTAGCALLBACK, DISPCONTAINERACTIONCALLBACK
Topics:	Image Viewer Cells
	Image Viewer Functions: Image Viewer Cells