X property data is long for format 32

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@48461 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Paul Cornett
2007-08-30 17:13:20 +00:00
parent 16d040053a
commit 93f7a33ef5

View File

@@ -1372,15 +1372,16 @@ bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
// from which the opacity property is checked from.
Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
unsigned int opacity = alpha * 0x1010101;
// Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
if (alpha == 0xff)
XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
else
{
long opacity = alpha * 0x1010101L;
XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
XA_CARDINAL, 32, PropModeReplace,
(unsigned char *) &opacity, 1L);
}
XSync(dpy, False);
return true;
}