// 为窗口设置新的尺寸
func win_handler_sizeTo(browser *cef.Browser, args []cef.V8Value) (result interface{}) {
fmt.Println("win_handler_sizeTo")
width := cef.V8ValueToInt32(args[0])
height := cef.V8ValueToInt32(args[1])
h := win.HWND(browser.GetWindowHandle())
var rect win.RECT
win.GetWindowRect(h, &rect)
fmt.Printf("win_handler_sizeTo Left=%v,Right=%v,Width=%v,Height=%v\n", rect.Left, rect.Top, width, height)
win.MoveWindow(h, rect.Left, rect.Top, width, height, true)
//result = 1
return
}
// 为窗口设置新的位置
func win_handler_moveTo(browser *cef.Browser, args []cef.V8Value) (result interface{}) {
fmt.Println("win_handler_moveTo")
left := cef.V8ValueToInt32(args[0])
top := cef.V8ValueToInt32(args[1])
fmt.Printf("win_handler_moveTo left=%v,top=%v\n", left, top)
h := win.HWND(browser.GetWindowHandle())
var rect win.RECT
win.GetWindowRect(h, &rect)
width := int32(rect.Right - rect.Left)
height := int32(rect.Bottom - rect.Top)
fmt.Printf("win_handler_moveTo Left=%v,Right=%v,Width=%v,Height=%v\n", left, top, width, height)
win.MoveWindow(h, left, top, width, height, true)
return
}
// 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
}
func (w *WindowBase) SetBounds(value Rect) {
win.MoveWindow(w.hwnd, int32(value.X), int32(value.Y), int32(value.Width), int32(value.Height), true)
}