WM_CAP_DRIVER_GET_VERSION

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 by szVer.

szVer

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

Return Values

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.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.
  Unicode: Defined as Unicode and ANSI messages.

See Also

Video Capture Overview, Video Capture Messages, capDriverGetVersion