WindowServer+LibGUI: Allow switching windows in/out of fullscreen mode

You can now call GWindow::set_fullscreen(bool) and it will go in or out
of fullscreen mode.

WindowServer will also remember the previous window rect when switching
to fullscreen, and restore it when switching back. :^)

1 files changed, 1 insertions, 1 deletions

diff --git a/Libraries/LibGUI/GWindow.h b/Libraries/LibGUI/GWindow.h
index e563cb1322..7591a66ad8 100644
--- a/Libraries/LibGUI/GWindow.h
+++ b/Libraries/LibGUI/GWindow.h
@@ -33,7 +33,7 @@ public:
     void set_modal(bool);
 
     bool is_fullscreen() const { return m_fullscreen; }
-    void set_fullscreen(bool fullscreen) { m_fullscreen = fullscreen; }
+    void set_fullscreen(bool);
 
     bool is_resizable() const { return m_resizable; }
     void set_resizable(bool resizable) { m_resizable = resizable; }