private void SetupTextBoxMessageHandler()
{
#if FRAMEWORK20
if (this.DropDownStyle != ComboBoxStyle.DropDownList && this.AutoCompleteMode == AutoCompleteMode.None)
#else
if (this.DropDownStyle != ComboBoxStyle.DropDownList)
#endif
{
if (m_TextWindowMsgHandler == null)
{
// Get hold of the text box
IntPtr hwnd = GetWindow(this.Handle, GW_CHILD);
// Subclass so we can track messages
if (hwnd != IntPtr.Zero)
{
m_TextWindowMsgHandler = new ComboTextBoxMsgHandler();
m_TextWindowMsgHandler.MouseLeave += new EventHandler(this.TextBoxMouseLeave);
m_TextWindowMsgHandler.Paint += new PaintEventHandler(TextBoxPaint);
m_TextWindowMsgHandler.AssignHandle(hwnd);
}
}
}
else if (m_TextWindowMsgHandler != null)
{
m_TextWindowMsgHandler.ReleaseHandle();
m_TextWindowMsgHandler = null;
}
}
/*protected override void OnEnabledChanged(EventArgs e)
{
base.OnEnabledChanged(e);
SyncTimerEnabled();
}*/
/*private void SyncTimerEnabled()
{
if(this.Visible)
{
if(!m_Timer.Enabled && this.Enabled && !this.DesignMode)
m_Timer.Enabled=true;
}
else
{
if(m_Timer.Enabled)
m_Timer.Enabled=false;
}
}*/
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose(bool disposing)
{
/*if(m_Timer!=null)
{
if(m_Timer.Enabled)
m_Timer.Enabled=false;
m_Timer.Dispose();
m_Timer=null;
}*/
if (m_MouseOverTimer != null)
{
m_MouseOverTimer.Enabled = false;
m_MouseOverTimer.Dispose();
m_MouseOverTimer = null;
}
m_DisableInternalDrawing = true;
if (m_TextWindowMsgHandler != null)
{
m_TextWindowMsgHandler.ReleaseHandle();
m_TextWindowMsgHandler = null;
}
ReleasePopupHandler();
if (_MultiColumnDisplay != null)
{
_MultiColumnDisplay.AfterNodeSelect -= TreeAfterNodeSelect;
_MultiColumnDisplay.BeforeNodeSelect -= TreeBeforeNodeSelect;
_MultiColumnDisplay.NodeMouseDown -= TreeNodeMouseDown;
_MultiColumnDisplay.DataColumnCreated -= TreeDataColumnCreated;
_MultiColumnDisplay.KeyDown -= TreeKeyDown;
_MultiColumnDisplay.Dispose();
_MultiColumnDisplay = null;
}
if (_PopupController != null)
{
_PopupController.Closed -= PopupControllerClosed;
_PopupController.Dispose();
_PopupController = null;
}
base.Dispose(disposing);
}