The MCIWndSetActiveTimer macro sets the update period used by MCIWnd to update the trackbar in the MCIWnd window, update position information displayed in the window title bar, and send notification messages to the parent window when the MCIWnd window is active. You can use this macro or explicitly send the MCIWNDM_SETACTIVETIMER message.
VOID MCIWndSetActiveTimer(
hwnd,
active
);
This macro does not return a value.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in vfw.h.
MCIWnd Window Class Overview, MCIWnd Macros, MCIWNDM_SETACTIVETIMER