protected override void OnCreateControl()
{
base.OnCreateControl();
NativeMethods.ComboBoxInfo cbi = GetComboBoxInfo();
_EditHandle = cbi.hwndEdit;
}
private NativeMethods.ComboBoxInfo GetComboBoxInfo()
{
var cbi = new NativeMethods.ComboBoxInfo();
cbi.cbSize = Marshal.SizeOf(cbi);
NativeMethods.GetComboBoxInfo(base.Handle, ref cbi);
return(cbi);
}
private Rectangle GetDropDownButtonRect()
{
NativeMethods.ComboBoxInfo cbi = GetComboBoxInfo();
return(cbi.rcButton.Rect);
}
private bool GetComboBoxButtonPressed()
{
NativeMethods.ComboBoxInfo cbi = GetComboBoxInfo();
return(cbi.stateButton == NativeMethods.ComboBoxButtonState.STATE_SYSTEM_PRESSED);
}