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If I set a CExtComboBox to be of type "Simple" then it does not draw correctly. It appears to try to draw as a "Drop List" style. Is the simple style not implemented or am I missing something? If I try to use a standard CComboBox then it flickers on dialog resizing and also the bottom of the list is not drawn correctly and jumps on resizing. Switching "No Integral Height" to False helps with the jumping, but the bottom of the frame is still drawn incorrectly.

Thanks

We fixed this problem and the bug fix will be available in the next minor release (will be released within a week).
In case of standard CComboBox, you can use the following class to fix invalid drawing at the bottom of the list:

class CSimpleComboBox : public CComboBox
{
protected:
 virtual LRESULT WindowProc( UINT message, WPARAM wParam, LPARAM lParam )
 {
  switch( message )
  {
  case WM_PAINT:
   {
    CPaintDC dcPaint( this );
    CExtPaintManager::stat_ExcludeChildAreas(
     dcPaint.GetSafeHdc(),
     GetSafeHwnd()
     );
    CRect rcClient;
    GetClientRect( &rcClient );
    CExtMemoryDC dc(
     &dcPaint,
     &rcClient
     );
    if(  (! g_PaintManager->GetCb2DbTransparentMode(this) )
     || (! g_PaintManager->PaintDockerBkgnd( true, dc, this ) )
     )
     dc.FillSolidRect( &rcClient, g_PaintManager->GetColor(CExtPaintManager::CLR_3DFACE_OUT) );
   }
   return TRUE;
  case WM_ERASEBKGND:
   return FALSE;
  } // switch( message )
  return CComboBox::WindowProc( message, wParam, lParam );
 }
};