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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 LImageViewerChildclass LImageViewerChild :public LImageViewerCell{virtual L_INT PrePaintCallBack(HWND hCellWnd, pDISPCONTAINERCELLINFO pCellInfo);};#endifL_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;}