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capDriverGetCaps macro

The capDriverGetCaps macro returns the hardware capabilities of the capture driver currently connected to a capture window. You can use this macro or explicitly send the WM_CAP_DRIVER_GET_CAPS message.

Syntax


BOOL capDriverGetCaps(
   hwnd,
   psCaps,
   wSize
);

Parameters

hwnd

Handle to a capture window.

psCaps

Pointer to the CAPDRIVERCAPS structure to contain the hardware capabilities.

wSize

Size, in bytes, of the structure referenced by psCaps.

Return value

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

Remarks

The capabilities returned in CAPDRIVERCAPS are constant for a given capture driver. Applications need to retrieve this information once when the capture driver is first connected to a capture window.

Requirements

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 Macros

 

 

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