public ToolStripComboBoxControlAccessibleObject(ToolStripComboBoxControl toolStripComboBoxControl) : base(toolStripComboBoxControl)
{
childAccessibleObject = new ChildAccessibleObject(toolStripComboBoxControl, toolStripComboBoxControl.Handle);
}
private void WmGetObject(ref Message m)
{
if (-4 == ((int) ((long) m.LParam)))
{
Guid refiid = new Guid("{618736E0-3C3D-11CF-810C-00AA00389B71}");
try
{
AccessibleObject accessibleImplemention = null;
if (this._accessibilityObject == null)
{
System.Windows.Forms.IntSecurity.UnmanagedCode.Assert();
try
{
accessibleImplemention = new ComboBox.ChildAccessibleObject(this._owner, base.Handle);
this._accessibilityObject = new InternalAccessibleObject(accessibleImplemention);
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
IntPtr iUnknownForObject = Marshal.GetIUnknownForObject(this._accessibilityObject);
System.Windows.Forms.IntSecurity.UnmanagedCode.Assert();
try
{
m.Result = System.Windows.Forms.UnsafeNativeMethods.LresultFromObject(ref refiid, m.WParam, new HandleRef(this, iUnknownForObject));
}
finally
{
CodeAccessPermission.RevertAssert();
Marshal.Release(iUnknownForObject);
}
return;
}
catch (Exception exception)
{
throw new InvalidOperationException(System.Windows.Forms.SR.GetString("RichControlLresult"), exception);
}
}
base.DefWndProc(ref m);
}