// Same as clicking on an hyperlink void IInvokeProvider.Invoke() { // Check that button can be clicked. // // @ // Make sure that the control is enabled if (!SafeNativeMethods.IsWindowEnabled(_hwnd)) { throw new ElementNotEnabledException(); } if (!SafeNativeMethods.IsWindowVisible(_hwnd)) { throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed)); } // // Get the bounding rect for the window. // NativeMethods.Win32Rect BoundingRect = NativeMethods.Win32Rect.Empty; if (!Misc.GetWindowRect(_hwnd, ref BoundingRect)) { return; } // // All we really need here are the height and the width, // so we don't even need to translate between screen // and client coordinates. // int width = BoundingRect.right - BoundingRect.left; int height = BoundingRect.bottom - BoundingRect.top; // // Determine the point to click. // // @ for (int Resolution = 10; Resolution > 0; --Resolution) { for (int x = 1; x <= width; x += Resolution) { for (int y = 1; y <= height; y += Resolution) { // // Send the link an LM_HITTEST message. // // Allocate a local hit test info struct. UnsafeNativeMethods.LHITTESTINFO HitTestInfo = new UnsafeNativeMethods.LHITTESTINFO(); // Fill in the coordinates that we want to check. HitTestInfo.pt.x = x; HitTestInfo.pt.y = y; // Fill in index and state info. HitTestInfo.item.mask = NativeMethods.LIF_ITEMINDEX | NativeMethods.LIF_STATE; HitTestInfo.item.iLink = 0; HitTestInfo.item.stateMask = NativeMethods.LIS_ENABLED; HitTestInfo.item.state = 0; bool bGetItemResult; unsafe { // Send the LM_HITTEST message. bGetItemResult = XSendMessage.XSend(_hwnd, NativeMethods.LM_HITTEST, IntPtr.Zero, new IntPtr(&HitTestInfo), Marshal.SizeOf(HitTestInfo.GetType())); } if (bGetItemResult == true && HitTestInfo.item.iLink == _item) { // // N.B. [SEdmison]: // This multiplication is essentially just // a left shift by one word's width; in // Win32 I'd just use my trusty MAKELONG macro, // but C# doesn't give me that option. // Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONDOWN, IntPtr.Zero, NativeMethods.Util.MAKELPARAM(x, y)); Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONUP, IntPtr.Zero, NativeMethods.Util.MAKELPARAM(x, y)); return; } } } } }
// Returns a Proxy element corresponding to the specified // screen coordinates. internal override ProxySimple ElementProviderFromPoint (int x, int y) { // // Send the link an LM_HITTEST message. // // Allocate a local hit test info struct. UnsafeNativeMethods.LHITTESTINFO HitTestInfo = new UnsafeNativeMethods.LHITTESTINFO(); // Fill in the coordinates that we want to check. HitTestInfo.pt.x = x; HitTestInfo.pt.y = y; // Convert screen coordinates to client coordinates. if (!Misc.MapWindowPoints(IntPtr.Zero, _hwnd, ref HitTestInfo.pt, 1)) { base.ElementProviderFromPoint(x, y); } // Fill in index and state info. HitTestInfo.item.mask = NativeMethods.LIF_ITEMINDEX | NativeMethods.LIF_STATE; HitTestInfo.item.iLink = 0; HitTestInfo.item.stateMask = NativeMethods.LIS_ENABLED; HitTestInfo.item.state = 0; bool bGetItemResult; unsafe { // Send the LM_HITTEST message. bGetItemResult = XSendMessage.XSend(_hwnd, NativeMethods.LM_HITTEST, IntPtr.Zero, new IntPtr(&HitTestInfo), Marshal.SizeOf(HitTestInfo.GetType())); } if (bGetItemResult == true && HitTestInfo.item.iLink >= 0 && GetLinkItem (HitTestInfo.item.iLink)) { return CreateHyperlinkItem (_linkItem, HitTestInfo.item.iLink); } return base.ElementProviderFromPoint (x, y); }