L_DispContainerSetRegionCallBack

#include "l_bitmap.h"

L_LTIVW_API L_INT EXT_FUNCTION L_DispContainerSetRegionCallBack(hCellWnd, pfnCallBack, pUserData)

Sets a callback function that is called every time the user creates, changes or removes a region from one of the bitmaps displayed in a cell.

Parameters

L_HWND hCellWnd

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

DISPCONTAINERREGIONCALLBACK pfnCallBack

Callback function that is called every time the user creates, changes or removes a region from one of the bitmaps displayed in a cell.

The callback function must adhere to the function prototype described in DISPCONTAINERREGIONCALLBACK.

L_VOID * pUserData

Void pointer that you can use to pass one or more additional parameters that the callback function needs.

To use this feature, assign a value to a variable or create a structure that contains as many fields as you need. Then, in this parameter, pass the address of the variable or structure, casting it to L_VOID *. The callback function, which receives the address in its own pUserData parameter, can cast it to a pointer of the appropriate data type to access your variable or structure. If the additional parameters are not needed, you can pass NULL in this parameter.

Returns

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

Comments

This function sets the region callback. To get the region callback use L_DispContainerGetRegionCallBack

Required DLLs and Libraries

Help Version 21.0.2020.8.21
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