public static DialogResult ShowDialog(Form form, bool disposeForm)
{
DialogResult result = DialogResult.OK;
#if !NDOC && !DESIGN
if (form == null)
{
throw new ArgumentNullException("form");
}
IntPtr lastWnd = Win32Window.GetActiveWindow();
// it seems that Form.Close() method processes Window Queue itself that is why it is
// only way to be noticed the a dialog form was closed
// If we're not supposed to dispose the form, we need to listen
// for the closing event instead, as the form will already be disposed
// by the time Closed is raised.
if (disposeForm)
{
form.Closed += new EventHandler(ModalForm_Closed);
}
else
{
form.Closing += new System.ComponentModel.CancelEventHandler(ModalForm_Closing);
}
form.Show();
form.Capture = true;
IntPtr hwnd = Win32Window.GetCapture();
form.Capture = false;
ThreadWindows previousThreadWindows = threadWindows;
threadWindows = new ThreadWindows(hwnd);
threadWindows.previousThreadWindows = previousThreadWindows;
threadWindows.Enable(false);
// enters dialog window loop
LocalModalMessageLoop();
result = form.DialogResult;
if (threadWindows != null)
{
threadWindows = threadWindows.previousThreadWindows;
}
if (disposeForm)
{
form.Closed -= new EventHandler(ModalForm_Closed);
form.Dispose();
}
else
{
form.Closing -= new System.ComponentModel.CancelEventHandler(ModalForm_Closing);
}
if (NativeMethods.IsWindow(lastWnd) && NativeMethods.IsWindowVisible(lastWnd))
{
NativeMethods.SetActiveWindow(lastWnd);
}
#endif
return(result);
}
/// <summary>
/// Resumes painting the <see cref="ComboBoxEx"/> control after painting is suspended by the <see cref="BeginUpdate"/> method.
/// <para><b>New in v1.3</b></para>
/// </summary>
public void EndUpdate()
{
m_updatable = true;
Win32Window.SendMessage(this.Handle, (int)WM.SETREDRAW, 1, 0);
}
/// <summary>
/// Control is subclassed by substituting the GWL_WNDPROC DWORD with a pointer to
/// our replacement window proc
/// </summary>
private void Subclass()
{
newWndProc = new WndProcDelegate(WndProc);
prevWndProc = (IntPtr)Win32Window.GetWindowLong(Handle, GWL.WNDPROC);
Win32Window.SetWindowLong(Handle, GWL.WNDPROC, Marshal.GetFunctionPointerForDelegate(newWndProc));
}
/// <summary>
/// Maintains performance when items are added to the <see cref="ComboBoxEx"/> one at a time.
/// <para><b>New in v1.3</b></para>
/// </summary>
public void BeginUpdate()
{
m_updatable = false;
Win32Window.SendMessage(this.Handle, (int)WM.SETREDRAW, 0, 0);
}
//When the parent control is resized, the hosted needs to be resized as well
// We emulate dock.fill behavior
protected override void OnResize(EventArgs e)
{
base.OnResize(e);
Win32Window.SetWindowPos(m_hwndControl, 0, 0, 0, ClientRectangle.Width, ClientRectangle.Height, SWP.NOZORDER);
}
