Application's icon can be used for various purposes by the window managers on
Windows and Unix: it can identify the application when it is minimized to the
desktop, for example, or it can be displayed next to application's name in
the taskbar, etc.
Unfortunately, Gtk+ 1.2.x for Win32 does not support setting the icon
programmatically. But on other platforms one should do this:
1: <?php
2: // create top-level application window
3: $win = &new GtkWindow();
4: // make sure GdkWindow is created
5: $win->realize();
6: $gdkwin = $win->window;
7: list($pixmap, $mask) =
8: gdk::pixmap_create_from_xpm($gdkwin, null, "icon.xpm");
9: $gdkwin->set_icon(null, $pixmap, $mask);
10: ?>
The first parameter to set_icon() is a GdkWindow which can serve as an icon
for the window when it is minimized. Only certain window managers support
this functionality, though.
