The MCIWndGetDevice macro retrieves the name of the current MCI device. You can use this macro or explicitly send the MCIWNDM_GETDEVICE message.
LONG MCIWndGetDevice(
hwnd,
lp,
len
);
Returns zero if successful or a nonzero value otherwise.
If the null-terminated string containing the device name is longer than the buffer, MCIWnd truncates it.
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_GETDEVICE