#include "ltwrappr.h"

virtual L_INT LImageViewerCell::TagCallBack (hCellWnd, nCellIndex, hDC, lpRect);

This callback function is called before the window control paints a cell that contains an owner draw tag.


HWND hCellWnd

A handle to the window that represents the Medical Viewer Cell.

L_INT nCellIndex

Index of the cell, which has the owner draw tag.


Memory DC that is used to paint the cell.

RECT * lpRect

Pointer to a RECT structure that contains the area of the owner draw tag in the Memory DC.


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


When the window control paints a cell that contains an "owner draw" tag, this callback function is called to allow the user to draw a custom tag. This callback function is only called however, if it has been set by calling LImageViewerCell::EnableTagCallBack.

Required DLLs and Libraries

Help Version 21.0.2021.4.7
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LEADTOOLS Medical Image Viewer C++ Class Library Help