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Merged
Created May 20, 2019 by Jon Turney@jturneyDeveloper

hw/xwin: improve interaction with native composition

  • Overview 1
  • Commits 7
  • Pipelines 2
  • Changes 19

This MR adds options which improve the way multiwindow mode (each top-level X window in it's own Windows window) interacts with native (DWM) composition:

  • -compositewm: Use Composite extension redirection to maintain a bitmap image of each top-level X window, so that window contents which are occluded when the window is not at the top of the stacking order are shown correctly in task bar and task switcher previews.

  • -compositealpha: X windows with per-pixel alpha are composited into the native DWM desktop, on Windows version which support this (i.e. a native window can be seen through a semi-transparent X window placed over it)

Edited Jun 13, 2019 by Jon Turney
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Source branch: xtow-composition