On Mittwoch, 16. April 2014 11:39:51 CEST, LIDE wrote:
I decode video and show it.I create a Independent window to show my video.The window I create cover the parent window's contents.For example, the Right-click menu in parent window is covered by the video window.I'm confused with that.Do you have any suggests for that?


In general, please keep asking x...@freedesktop.org


There're four possible causes:
1) the window is tagged "override_redirect" (not managed by the WM, thus not 
put into a managed stack, but simply on top of everything)
2) the rightclick menu is NOT tagged "override_redirect" and considered below 
by the WindowManager
3) There is no WM (thus all windows are considered "override_redirect" and new 
one will simply open on top of everything unless the client restacks them itself, ie. 
plays WM)
4) there's no compositor, the video uses an overlay technique (xv/vdpau) and th 
popups color matches the color key of the overlay (the GPU will replace the 
matching color in the matching region with the video content, bypassing X11)

A window manager would be sth. like fvwm, kwin, compiz, metacity, lwm, e16, openbox, 
mutter and a dozen other variants - desktop environments like gnome, kde, xfce, lxde 
usually run a WM, but if you just start an X11 display server, there won't be one - and 
"something else" (your client, i assume) has to control the stacking order of 
all relevant client windows.

Cheers,
Thomas
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