L_DispContainerSetPrePaintCallBack

L_HWND hCellWnd;

handle to the cell window

DISPCONTAINERPREPAINTCALLBACK pfnCallBack;

callback function

LPVOID pUserData;

pointer to more parameters for the callback

Parameter

Description

hCellWnd

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

pfnCallBack

Callback function that is called before painting the cell.

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

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.

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

LTIVW
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.