The MCIWndGetVolume macro retrieves the current volume setting of an MCI device. You can use this macro or explicitly send the MCIWNDM_GETVOLUME message.
LONG MCIWndGetVolume(
hwnd
);
Returns the current volume setting. The default value is 1000. Higher values indicate louder volumes; lower values indicate quieter volumes.
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_GETVOLUME