On Thu, 10 Nov 2011 21:05:47 +0530, Arvind Umrao <[email protected]> wrote:
> XCopyArea does not copy areas of the screen across physical displays. This is not a protocol violation. Throughout the spec, it is made clear that the X server is free to discard window contents at any time, as long as suitable expose or graphics expose events are delivered. Performance of GetImage/PutImage is generally low enough that it is faster for the application to re-generate the window contents than to have them preserved by this mechanism in the server. -- [email protected]
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