On Jan 24, 2008 12:16 AM, Skee Lin <[EMAIL PROTECTED]> wrote:
> Tristan Van Berkom 写道:
> > On Jan 23, 2008 7:03 AM, Skee Lin <[EMAIL PROTECTED]
> > <mailto:[EMAIL PROTECTED]>> 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
> >
> I really appreciate the helpful reply from Tristan. However, there is
> 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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