Method MessageHandler

TranslucentTB/uwp/xamldragregion.cpp:16–78

}

LRESULT XamlDragRegion::MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch (uMsg)
	{
	case WM_LBUTTONDOWN:
		HandleClick(WM_NCLBUTTONDOWN, lParam);
		return 0;

	case WM_LBUTTONDBLCLK:
		HandleClick(WM_NCLBUTTONDBLCLK, lParam);
		return 0;

	case WM_LBUTTONUP:
		HandleClick(WM_NCLBUTTONUP, lParam);
		return 0;

	case WM_RBUTTONDOWN:
		HandleClick(WM_NCRBUTTONDOWN, lParam);
		return 0;

	case WM_RBUTTONDBLCLK:
		HandleClick(WM_NCRBUTTONDBLCLK, lParam);
		return 0;

	case WM_RBUTTONUP:
		HandleClick(WM_NCRBUTTONUP, lParam);
		return 0;

	case WM_MOUSEMOVE:
		if (!m_Tracking)
		{
			TRACKMOUSEEVENT tme = {
				.cbSize = sizeof(tme),
				.dwFlags = TME_HOVER | TME_LEAVE,
				.hwndTrack = m_WindowHandle,
				.dwHoverTime = HOVER_DEFAULT
			};

			if (TrackMouseEvent(&tme))
			{
				m_Tracking = true;
			}
			else
			{
				LastErrorHandle(spdlog::level::info, L"Failed to track mouse events");
			}
		}

		return 0;

	case WM_MOUSEHOVER:
		ancestor(GA_PARENT).send_message(uMsg, wParam, lParam);
		return 0;

	case WM_MOUSELEAVE:
		ancestor(GA_PARENT).send_message(uMsg, wParam, lParam);
		m_Tracking = false;
		return 0;