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ICDrawQuery macro

The ICDrawQuery macro queries a rendering driver to determine if it can render data in a specific format. You can use this macro or explicitly call the ICM_DRAW_QUERY message.

Syntax


DWORD ICDrawQuery(
   hic,
   lpbiInput
);

Parameters

hic

Handle to a driver.

lpbiInput

Pointer to a BITMAPINFO structure containing the input format.

Return value

Returns ICERR_OK if the driver can render data in the specified format or ICERR_BADFORMAT otherwise.

Remarks

This macro differs from the ICDrawBegin macro in that it queries the driver in a general sense. ICDrawBegin determines if the driver can draw the data using the specified format under specific conditions, such as stretching the image.

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 Compression Manager
Video Compression Macros

 

 

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