backported crash fix for wxFrame::Iconize() from 2.2

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10791 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-07-02 16:07:32 +00:00
parent 6c01ec02a8
commit 48ff57aed8
2 changed files with 16 additions and 6 deletions
--- a/src/gtk1/frame.cpp
+++ b/src/gtk1/frame.cpp
@@ -1231,9 +1231,14 @@ void wxFrameGTK::Iconize( bool iconize )
 {
   if (iconize)
   {
-        XIconifyWindow( GDK_WINDOW_XDISPLAY( m_widget->window ),
-                        GDK_WINDOW_XWINDOW( m_widget->window ),
-                        DefaultScreen( GDK_DISPLAY() ) );
+       GdkWindow *window = m_widget->window;
+
+       // you should do it later, for example from OnCreate() handler
+       wxCHECK_RET( window, _T("frame not created yet - can't iconize") );
+
+       XIconifyWindow( GDK_WINDOW_XDISPLAY( window ),
+                       GDK_WINDOW_XWINDOW( window ),
+                       DefaultScreen( GDK_DISPLAY() ) );
   }
 }