// This is new with v6 comctrl on Vista
private void ClickSplitButton()
{
// Make sure that the control is enabled
if (!SafeNativeMethods.IsWindowEnabled(_hwnd))
{
throw new ElementNotEnabledException();
}
WindowsSysHeader parent = _parent as WindowsSysHeader;
if (parent != null)
{
parent.ScrollIntoView(this);
}
Rect rect = XSendMessage.GetItemRect(_hwnd, NativeMethods.HDM_GETITEMDROPDOWNRECT, _item);
NativeMethods.Win32Rect rectW32 = new NativeMethods.Win32Rect(rect);
IntPtr center = NativeMethods.Util.MAKELPARAM(rectW32.left + ((rectW32.right - rectW32.left) / 2), rectW32.top + ((rectW32.bottom - rectW32.top) / 2));
// click
// This code does not seem to work
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONDOWN, new IntPtr(NativeMethods.MK_LBUTTON), center);
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONUP, IntPtr.Zero, center);
}
// Same as a click on one of the header element
void IInvokeProvider.Invoke()
{
// Make sure that the control is enabled
if (!SafeNativeMethods.IsWindowEnabled(_hwnd))
{
throw new ElementNotEnabledException();
}
WindowsSysHeader parent = _parent as WindowsSysHeader;
if (parent != null)
{
parent.ScrollIntoView(this);
}
NativeMethods.Win32Point pt;
if (!GetInvokationPoint(out pt))
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
IntPtr center = NativeMethods.Util.MAKELPARAM(pt.x, pt.y);
// click
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONDOWN, new IntPtr(NativeMethods.MK_LBUTTON), center);
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONUP, IntPtr.Zero, center);
}