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WM_CAP_DRIVER_GET_VERSION message

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The WM_CAP_DRIVER_GET_VERSION message returns the version information of the capture driver connected to a capture window. You can send this message explicitly or by using the capDriverGetVersion macro.

WM_CAP_DRIVER_GET_VERSION 
wParam = (WPARAM) (wSize); 
lParam = (LPARAM) (LPVOID) (LPSTR) (szVer);

Parameters

wSize

Size, in bytes, of the application-defined buffer referenced byszVer.

szVer

Pointer to an application-defined buffer used to return the version information as a null-terminated string.

Return Value

Returns TRUE if successful or FALSE if the capture window is not connected to a capture driver.

Remarks

The version information is a text string retrieved from the driver's resource area. Applications should allocate approximately 40 bytes for this string. If version information is not available, a NULL string is returned.

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

Video Capture

Video Capture Messages