ICM_DRAW_QUERY  3TSZ_LC 

The ICM_DRAW_QUERY message queries a rendering driver to determine if it can render data in a specific format. You can send this message explicitly or by using the ICDrawQueryD1SFL7 macro.

ICM_DRAW_QUERY

wParam = (DWORD) (LPVOID) lpbiInput;

lParam = 0;

Parameters

lpbiInput

Address of a BITMAPINFO.2PXNH structure containing the input format.

Return Values

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

Remarks

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

See Also