WM_CAP_SET_CALLBACK_STATUS

	Overview

	Group

	Quick Info

The WM_CAP_SET_CALLBACK_STATUS message sets a status callback function in the application. AVICap calls this procedure whenever the capture window status changes. You can send this message explicitly or by using the capSetCallbackOnStatus macro.

wParam = (WPARAM) 0;

lParam = (LPARAM) (LPVOID) (fpProc);

Parameters
fpProc

Address of the status callback function. Specify NULL for this parameter to disable a previously installed status callback function.

Return Values
Returns TRUE if successful or FALSE if streaming capture or a single-frame capture sesion is in progress.

Remarks
Applications can optionally set a status callback function. If set, AVICap calls this procedure in the following situations:

A capture session is completed.
A capture driver successfully connected to a capture window.
An optimal palette is created.
The number of captured frames is reported.