Use parents client size and origin in placement of controls.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31914 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/palmos/frame.cpp

@@ -183,6 +183,10 @@ void wxFrame::DoSetClientSize(int width, int height)
 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 void wxFrame::DoGetClientSize(int *x, int *y) const
 {
+    wxSize size = GetSize();
+    wxPoint pos = GetClientAreaOrigin();
+    *x = size.x - pos.x - 1;
+    *y = size.y - pos.y - 1;
 }
 
 // ----------------------------------------------------------------------------