#include "ltivw.h"

L_INT pEXT_CALLBACK YourFunction(hCellWnd, hMemDC, lpRect, nCellIndex, nSubCellIndex, pUserData)

This callback function is called during the cell painting.


L_HWND hCellWnd

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


Handle to memory device context is used to paint the cell.


Pointer to a RECT structure that contains the client coordinates of the rectangle for the user to paint in.

L_INT nCellIndex

A zero-based index of the cell in which the callback will paint.

L_INT nSubCellIndex

A zero-based index into the image list attached to the cell specified in nCellIndex. This image is the one on which the callback will paint.

L_VOID * pUserData

A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of L_DispContainerSetPaintCallBack.) Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.


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


This callback function is called after painting everything in the cell (image, tags, rulers, annotations and region), so if user paints anything, it will be drawn as the top most.

Required DLLs and Libraries

Help Version 21.0.2021.4.7
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