don't hard code the menu bar height under WinCE (#10248) [backport of r57393 from trunk]

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@57395 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -135,6 +135,10 @@ wxMSW:
 - Correct coordinates of wxDropFilesEvent (Dmitriy Maksimov).
 - Fix handling of abandoned mutexes in wxMutex (David Heffernan).
 
+wxMSW/CE:
+
+- Don't hardcode the menu bar height (Michele Spighi).
+
 wxGTK:
 
 - Fixed printing to use fonts sizes adjustment consistent with wxMSW.

src/msw/frame.cpp

@@ -425,19 +425,23 @@ void wxFrame::AttachMenuBar(wxMenuBar *menubar)
         SetToolBar(toolBar);
         menubar->SetToolBar(toolBar);
     }
-    // Now adjust size for menu bar
-    int menuHeight = 26;
 
-    //When the main window is created using CW_USEDEFAULT the height of the
-    // is created is not taken into account). So we resize the window after
-    // if a menubar is present
+    // When the main window is created using CW_USEDEFAULT the height of the
+    // menubar is not taken into account, so we resize it afterwards if a
+    // menubar is present
+    HWND hwndMenuBar = SHFindMenuBar(GetHwnd());
+    if ( hwndMenuBar )
     {
+        RECT mbRect;
+        ::GetWindowRect(hwndMenuBar, &mbRect);
+        const int menuHeight = mbRect.bottom - mbRect.top;
+
         RECT rc;
-        ::GetWindowRect((HWND) GetHWND(), &rc);
+        ::GetWindowRect(GetHwnd(), &rc);
         // adjust for menu / titlebar height
         rc.bottom -= (2*menuHeight-1);
 
-        ::MoveWindow((HWND) GetHWND(), rc.left, rc.top, rc.right, rc.bottom, FALSE);
+        ::MoveWindow(Gethwnd(), rc.left, rc.top, rc.right, rc.bottom, FALSE);
     }
 #endif