ICDrawWindow

The ICDrawWindow macro notifies a rendering driver that the window specified for the ICM_DRAW_BEGIN message needs to be redrawn. The window has moved or become temporarily obscured. You can use this macro or explicitly call the ICM_DRAW_WINDOW message.

DWORD ICDrawWindow(

hic,
prc
);

Parameters

hic

Handle of a driver.

prc

Address of the destination rectangle in screen coordinates. If this parameter points to an empty rectangle, drawing should be turned off.

Return Values

Returns ICERR_OK if successful or an error otherwise.

Remarks

This message is supported by hardware that performs its own asynchronous decompression, timing, and drawing.

Video-overlay drivers use this message to draw when the window is obscured or moved. When a window specified for ICM_DRAW_BEGIN is completely hidden by other windows, the destination rectangle is empty. Drivers should turn off video-overlay hardware when this condition occurs.

See Also

ICM_DRAW_BEGIN, ICM_DRAW_WINDOW

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