Apply [ 1713345 ] combobox: cmd accelerators shouldn't steal editing hotkeys

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@45818 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/combobox.h

@@ -105,7 +105,8 @@ public:
     virtual bool MSWCommand(WXUINT param, WXWORD id);
     bool MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam);
     virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
-
+    bool MSWShouldPreProcessMessage(WXMSG *pMsg);
+    
     WXHWND GetEditHWND() const;
 
     // Standard event handling

src/msw/combobox.cpp

@@ -367,6 +367,30 @@ bool wxComboBox::MSWCommand(WXUINT param, WXWORD id)
     return true;
 }
 
+bool wxComboBox::MSWShouldPreProcessMessage(WXMSG *pMsg)
+{
+    // prevent command accelerators from stealing editing
+    // hotkeys when we have the focus
+    if (wxIsCtrlDown())
+    {
+        WPARAM vkey = pMsg->wParam;
+        
+        switch (vkey)
+        {
+            case 'C':
+            case 'V':
+            case 'X':
+            case VK_INSERT:
+            case VK_DELETE:
+            case VK_HOME:
+            case VK_END:
+                return false;
+        }
+    }
+    
+    return wxChoice::MSWShouldPreProcessMessage(pMsg);
+}
+
 WXHWND wxComboBox::GetEditHWND() const
 {
     // this function should not be called for wxCB_READONLY controls, it is