ICDrawQuery macro (vfw.h)

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

Type: DWORD

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

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

See also

Video Compression Macros

Video Compression Manager