drawable-stream

Arguments: drawable

Returns the stream that an application should currently draw on for a drawable. If the use-bitmap-stream property of drawable is true, drawable-stream will return the bitmap-stream of drawable. Otherwise, drawable-stream will return the visible window of the drawable control.

Note that if drawable is not currently on a dialog and use-bitmap-stream is false, then nil is returned. This may cause problems since the appropriate stream is passed automatically to the drawing functions.

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Created 2010.1.21.