コード例 #1
0
ファイル: ngui.go プロジェクト: CodyGuo/ngui
func TransparentWndProc(hwnd win.HWND, msg uint32, wParam, lParam uintptr) (result uintptr) {
	switch msg {
	case win.WM_CREATE:
		//a := *(*uintptr)(unsafe.Pointer(lParam))
		//fmt.Printf("WM_CREATE %v\n", a)
		result = win.DefWindowProc(hwnd, msg, wParam, lParam)
	//case win.WM_NCPAINT:
	//	result = win.DefWindowProc(hwnd, msg, wParam, lParam)
	case win.WM_LBUTTONDOWN:
		//fmt.Printf("WM_LBUTTONDOWN\n")
		if isEnableDrag {
			win.SetCapture(hwnd)

			win.GetWindowRect(hwnd, &rcWindow)
			win.GetCursorPos(&dragPoint)

			isDrag = true
		}
		result = 0
	case win.WM_LBUTTONUP:
		if win.GetCapture() == hwnd {
			win.ReleaseCapture()
		}
		isDrag = false
		result = 0
	case win.WM_NCCALCSIZE:
		wpCaptionLess := uintptr(win.GetProp(hwnd, WindowProp_CaptionLess))
		//fmt.Printf("wpCaptionLess=%v\n", wpCaptionLess)
		if wpCaptionLess == 1 && win.BOOL(wParam) == win.TRUE {
			var size_param *win.NCCALCSIZE_PARAMS = (*win.NCCALCSIZE_PARAMS)(unsafe.Pointer(lParam))
			size_param.Rgrc[2] = size_param.Rgrc[1]
			size_param.Rgrc[1] = size_param.Rgrc[0]
			result = 0
		} else {
			result = win.DefWindowProc(hwnd, msg, wParam, lParam)
		}
	//case win.WM_NCHITTEST:
	//x := win.LOWORD(uint32(lParam))
	//y := win.HIWORD(uint32(lParam))
	//s := fmt.Sprintf("WM_NCHITTEST x,y=%v,%v\n", x, y)

	//result = win.DefWindowProc(hwnd, msg, wParam, lParam)
	case win.WM_MOUSEMOVE:
		//fmt.Printf("WM_MOUSEMOVE\n")
		if isDrag {
			var pe win.POINT
			win.GetCursorPos(&pe) // The new position for cursor pointer

			left := rcWindow.Left + (pe.X - dragPoint.X) // The horizontal position of the new window
			top := rcWindow.Top + (pe.Y - dragPoint.Y)   // The vertical position of the new windows

			//win.MoveWindow(hwnd,reWindow.Left,reWindow.Top,reWindow.Right,reWindow.Bottom,true);// Moving window
			win.SetWindowPos(hwnd, 0, left, top, 0, 0, win.SWP_NOSIZE|win.SWP_NOZORDER)
		}
	case win.WM_SIZE:
		// 最小化时不能调整Cef窗体,否则恢复时界面一片空白
		if wParam == win.SIZE_RESTORED || wParam == win.SIZE_MAXIMIZED {
			cef.WindowResized(unsafe.Pointer(hwnd))
		}
	case win.WM_CLOSE:
		win.DestroyWindow(hwnd)
	case win.WM_DESTROY:
		cef.QuitMessageLoop()
	default:
		result = win.DefWindowProc(hwnd, msg, wParam, lParam)
	}
	//result = win.DefWindowProc(hwnd, msg, wParam, lParam)
	return
}
コード例 #2
0
ファイル: ngui.go プロジェクト: CodyGuo/ngui
// 创建浏览器窗口
func (a *Application) CreateBrowserWindow(url string, captionless bool) (err error) {
	var dwExStyle, dwStyle uint32 = 0, 0
	var captionlessFlag uintptr = 0
	fmt.Printf("CreateBrowserWindow url=%v captionless=%v\n", url, captionless)

	if captionless {
		captionlessFlag = 1
		//dwExStyle = 0//win.WS_EX_LAYERED

		// 无边框效果不错。但是不能移动
		//dwStyle = win.WS_POPUP //& ^ (win.WS_CAPTION | win.WS_BORDER)

		dwStyle = win.WS_MINIMIZEBOX | win.WS_MAXIMIZEBOX | win.WS_CAPTION | win.WS_CLIPCHILDREN |
			win.WS_SYSMENU | win.WS_POPUP

	} else {
		dwStyle = win.WS_OVERLAPPEDWINDOW
	}

	if !manifest.FormFixed() {
		dwStyle |= win.WS_SIZEBOX
	}

	// 获取屏幕宽度和高度
	var x, y int32
	var width, height int32

	width = manifest.Width()
	height = manifest.Height()
	x = (win.GetSystemMetrics(win.SM_CXSCREEN) - width) / 2
	y = (win.GetSystemMetrics(win.SM_CYSCREEN)-height)/2 - 2

	renderWindow := win.CreateWindowEx(
		dwExStyle,
		syscall.StringToUTF16Ptr(nguiTransparentWindowClass),
		nil,
		dwStyle, //|win.WS_CLIPSIBLINGS,
		x,       //win.CW_USEDEFAULT,
		y,       //win.CW_USEDEFAULT,
		width,   //win.CW_USEDEFAULT,
		height,  //win.CW_USEDEFAULT,
		0,       //hwndParent
		0,
		0, //hInstance
		nil)
	if renderWindow == 0 {
		err = errors.New("CreateWindowEx")
		return
	}

	// 设置captionless标记
	win.SetProp(renderWindow, WindowProp_CaptionLess, win.HANDLE(captionlessFlag))

	if captionless {
		/*
					SetWindowLong(hWnd, GWL_STYLE,
			        GetWindowLong(hWnd, GWL_STYLE) & ~(WS_BORDER));
		*/

		// WS_BORDER Creates a window that has a border.创建一个有边界的窗口。
		// WS_EX_CLIENTEDGE Specifies that a window has a 3D look — that is, a border with a sunken edge.指定窗口具有3D外观,也即是一个下层的边缘。
		//gwlStyle := win.GetWindowLong(renderWindow, win.GWL_STYLE)
		//gwlStyle &= ^(win.WS_BORDER)
		//gwlStyle &= ^(win.WS_EX_CLIENTEDGE)
		//win.SetWindowLong(renderWindow, win.GWL_STYLE, gwlStyle)

		//gwlExStyle := win.GetWindowLong(renderWindow, win.GWL_EXSTYLE)
		//gwlExStyle |= win.WS_EX_LAYERED;
		//win.SetWindowLong(renderWindow, win.GWL_EXSTYLE, gwlExStyle)

		// HWND hWnd: 窗口句柄
		// COLORREF col: 透明化颜色
		// byte bAlpha: =0:整个窗口透明, =255 完全不透明
		// uint32 dwFlags: =1:仅颜色 col 透明, =2 :窗口按照bAlpha变量进行透明处理。
		//win.SetLayeredWindowAttributes(renderWindow, win.BS_SOLID, 0, 2)
		//win.UpdateWindow(renderWindow)
	}

	if captionless {
		//win.MoveWindow(renderWindow, x, y, width, height, false)
		//win.SetWindowPos(renderWindow, 0, x, y, width, height, win.SWP_NOZORDER|win.SWP_NOACTIVATE|win.SWP_NOSIZE)
		win.SetWindowPos(renderWindow, 0, x, y, width, height, win.SWP_FRAMECHANGED)
	} else {
		win.MoveWindow(renderWindow, x, y, width, height, false)
	}

	fmt.Printf("CreateBrowserWindow x=%v, y=%v, width=%v, height=%v\n", x, y, width, height)

	go func() {

		//browser := cef.CreateBrowser(unsafe.Pointer(hwnd), &browserSettings, url, false)
		browserSettings := cef.BrowserSettings{}
		cef.CreateBrowser(unsafe.Pointer(renderWindow), &browserSettings, url, false)

		//m_dwStyle = WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_TABSTOP |
		//		WS_VISIBLE;
		cef.WindowResized(unsafe.Pointer(renderWindow))

		win.ShowWindow(renderWindow, win.SW_SHOW) //win.SW_SHOW
		win.UpdateWindow(renderWindow)

		//cef.WindowResized(unsafe.Pointer(renderWindow))
		// It should be enough to call WindowResized after 10ms,
		// though to be sure let's extend it to 100ms.
		//time.AfterFunc(time.Millisecond*100, func() {
		//	cef.WindowResized(unsafe.Pointer(renderWindow))
		//})
	}()

	return
}