This callback function is called before painting the cell or sub-cell.
#include "ltwrappr.h"
virtual L_INT LImageViewerCell::PrePaintCallBack(hCellWnd, pCellInfo)
A handle to the window that represents the Medical Viewer Cell.
Pointer to the DISPCONTAINERCELLINFO structure to be updated with the cell information.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
In order to use this callback function, it must first be set by calling the LImageViewerCell::EnablePrePaintCallBack function.
This example hides the odd frames
#ifdef LImageViewerChild
class LImageViewerChild :public LImageViewerCell
{
virtual L_INT PrePaintCallBack(HWND hCellWnd, pDISPCONTAINERCELLINFO pCellInfo);
};
#endif
L_INT LImageViewerChild::PrePaintCallBack(HWND hCellWnd, pDISPCONTAINERCELLINFO pCellInfo)
{
UNREFERENCED_PARAMETER(hCellWnd);
if ((pCellInfo->nSubCellIndex | 0x1) != pCellInfo->nSubCellIndex)
{
FillRect(pCellInfo->hDC, &pCellInfo->rcRect, (HBRUSH)GetStockObject(GRAY_BRUSH));
return FAILURE;
}
return SUCCESS;
}
L_INT LImageViewer_PrePaintExample(LImageViewerCell& ImageViewerCell)
{
ImageViewerCell.EnablePrePaintCallBack(TRUE);
return SUCCESS;
}