MCIWNDM_GETERROR message

The MCIWNDM_GETERROR message retrieves the last MCI error encountered. You can send this message explicitly or by using the MCIWndGetError macro.

MCIWNDM_GETERROR 
wParam = (WPARAM) (UINT) len; 
lParam = (LPARAM) (LPVOID) lp; 

Parameters

len

Size, in bytes, of the error buffer.

lp

Pointer to an application-defined buffer used to return the error string.

Return Value

Returns the integer error value if successful.

Remarks

If lp is a valid pointer, a null-terminated string corresponding to the error is returned in its buffer. If the error string is longer than the buffer, MCIWnd truncates it.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Vfw.h

See also

MCIWndGetError