Tristan Van Berkom 写道:> On Jan 23, 2008 7:03 AM, Skee Lin <skee.lin@xxxxxxxxxI really appreciate the helpful reply from Tristan. However, there is> <mailto: skee.lin@xxxxxxxxx>> wrote:
>
> Hi everybody,
> I'm trying to create a transparent window to show some
> informations, and
> it's always on top.
> Does anybody know how to let the mouse messages through? For instance,
> when I click on the window, I actually click on the desktop(if
> there are
> no other windows).
>
>
> I think you can accomplish this with gdk_window_shape_combine_mask ()
>
> http://library.gnome.org/devel/gdk/unstable/gdk-Windows.html#gdk-window-shape-combine-mask
>
> Cheers,
> -Tristan
>
another problem that does irregular window occupy much cup time?
I want to create a window to show lyrics of songs. User can move the
window by clicking on the text while clicking on the other areas will be
send to lower window. I think cairo can convert the text to pixmap mask,
but I'm afraid the nonstop changing of the shape will occupy much cpu time.
Maybe I need to describe my problem more simply: How to show a window
and let all clicking messages through, just like the window is not exist?
Any information would be appreciated.**
Your use case is particular, you said you want the *Desktop* also to recieve
mouse clicks, and other applications too.
You definitely can accomplish this with layered windows in YOUR app,
but once you eat up the gdk events from the X server, I dont know how
you can send them back to the underlying random window.
It might be possible already, anything is surely is possible if you hack
the X server to do it ;-)
Cheers,
-Tristan
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