关于WPF窗体焦点的问题~！~！

[andy1020tc]

是这样的
我有个主窗体
窗体运行起来没什么毛病 但是有个很烦躁的地方
我点窗体第一下没反应
比如我点窗体最大化 点一下没反应
第二下窗体才最大化了

此窗体加载的一个usercontrol里的按钮也是这样

用窗体的this.Focus()方法 没什么作用
不知道有什么办法能解决的。。。

[andy1020tc]

不是就这么要沉了吧 别啊 我急着想解决呢

[only9002]

你的代码是什么，帖出来看看

[andy1020tc]

别沉了啊。。。。

[andy1020tc]

public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct MARGINS
        {
            public int cxLeftWidth;
            public int cxRightWidth;
            public int cyTopHeight;
            public int cyBottomHeight;
        }
        #region 引用 Dll
        [DllImport("DwmApi.dll")] //玻璃
        public static extern int DwmExtendFrameIntoClientArea(IntPtr hwnd, ref MARGINS pMarInset);
        [DllImport("user32.dll", EntryPoint = "SendMessage")]// 移动
        public static extern int SendMessage(int hWnd, int wMsg, int wParam, int lParam);
        [DllImport("user32.dll", EntryPoint = "ReleaseCapture")]
        public static extern int ReleaseCapture();
        public const int WM_SysCommand = 0x0112;
        public const int SC_MOVE = 0xF012;
        #endregion

        private void ExtendAeroGlass(Window window)
        {
            try
            {
                // 为WPF程序获取窗口句柄
                IntPtr mainWindowPtr = new WindowInteropHelper(window).Handle;
                HwndSource mainWindowSrc = HwndSource.FromHwnd(mainWindowPtr);
                mainWindowSrc.CompositionTarget.BackgroundColor = Colors.Transparent;
                // 设置Margins
                MARGINS margins = new MARGINS();
                // 扩展Aero Glass
                margins.cxLeftWidth = -1;
                margins.cxRightWidth = -1;
                margins.cyTopHeight = -1;
                margins.cyBottomHeight = -1;
                int hr = DwmExtendFrameIntoClientArea(mainWindowSrc.Handle, ref margins);
                if (hr < 0)
                {
                    MessageBox.Show("玻璃效果加载失败！");
                }
            }
            catch (DllNotFoundException)
            {
                Application.Current.MainWindow.Background = Brushes.White;
            }
        }


        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            this.Background = Brushes.Transparent;
            ExtendAeroGlass(this);
        }


        private void window_SizeChanged(object sender, SizeChangedEventArgs e)
        {
            Size newSize = e.NewSize;
            newSize = new Size(e.NewSize.Width - 6, 30);
            Thickness thick = new Thickness(newSize.Width / 50, 0, 0, 0);
            //MessageBox.Show(newSize.Height.ToString());
            if (newSize.Width < 754)
            {
                this.lblLogo.Visibility = Visibility.Collapsed;
            }
            else if (newSize.Width < 915)
            {
                this.lblLogo.Visibility = Visibility.Visible;
                btnMineSongs.Visibility = Visibility.Collapsed;
                btnNewSongs.Visibility = Visibility.Collapsed;
                btnNewUpLoadSong.Visibility = Visibility.Collapsed;
                this.cboSearch.Width = newSize.Width / 7.5;
                this.btnMineSong.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
                this.btnNewSong.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
                this.btnNewUpLoad.Margin = new Thickness(newSize.Width / 15, 0, 0, 0);
            }
            else
            {
                this.lblLogo.Visibility = Visibility.Visible;
                btnMineSongs.Visibility = Visibility.Visible;
                btnNewSongs.Visibility = Visibility.Visible;
                btnNewUpLoadSong.Visibility = Visibility.Visible;
                this.cboSearch.Width = newSize.Width / 6;
                this.btnMineSongs.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
                this.btnNewSongs.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
                this.btnNewUpLoadSong.Margin = new Thickness(newSize.Width / 15, 0, 0, 0);
                this.btnMineSong.Margin = new Thickness(0);
                this.btnNewSong.Margin = new Thickness(0);
                this.btnNewUpLoad.Margin = new Thickness(0);
            }

            this.lblLogo.Margin = new Thickness(newSize.Width / 180, 0, 0, 0);
            this.btnLogin.Margin = new Thickness(newSize.Width / 90, 0, 0, 0);
            this.btnMineSongs.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
            this.btnNewSongs.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
            this.btnNewUpLoadSong.Margin = new Thickness(newSize.Width / 15, 0, 0, 0);
            this.cboSearch.Margin = new Thickness(newSize.Width / 60, 0, 0, 0);
            this.btnTime.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
            this.btnUpLoadSong.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);
            this.btnDownLoadSong.Margin = new Thickness(newSize.Width / 45, 0, 0, 0);

            //窗体大小变化 播放器始终位于窗体中间
            if (iMusicControl1.Margin.Top == 0)
                iMusicControl1.Margin = new Thickness((newSize.Width - iMusicControl1.Width) / 2, 0, 0, 0);
            if (iMusicControl1.Margin.Left == 0)
                iMusicControl1.Margin = new Thickness(0, (this.Height - iMusicControl1.Height - 20) / 2, 0, 0);
            if (this.WindowState == WindowState.Maximized || this.Height > 438)
            {
                iMusicControl1.Margin = new Thickness((newSize.Width - iMusicControl1.Width) / 2, (this.Height - iMusicControl1.Height - 20) / 2 , 0, 0);
            }
            //this.Title = this.Height.ToString();
        }

        private void btnLogin_Click(object sender, RoutedEventArgs e)
        {
            LoginWindow login = new LoginWindow();
            login.ShowDialog();
        }

        private void btnRegiest_Click(object sender, RoutedEventArgs e)
        {
            RegistWindow regist = new RegistWindow();
            regist.ShowDialog();
        }
    }

[andy1020tc]

做了个win7的玻璃效果 要出问题的话 估计是那里
其他地方应该不会有什么问题

[andy1020tc]

[Quote=引用 6 楼 bunliney 的回复:]
你用窗体的PreviewMouseDown事件看看，你的第一次操作是否传入了
[/Quote]
进去了 鼠标点第一下就进去了
晕倒啊 这是为什么

点其他的 要第二下才有反应

[0xAAFF]

好吧 ..我是小白
我觉得窗体玻璃化那里没有问题
那你在这里，我其实看不懂，因为我没用过鼠标拖动窗体，但是我想或许和鼠标有关系

 [DllImport("user32.dll", EntryPoint = "SendMessage")]// 移动
        public static extern int SendMessage(int hWnd, int wMsg, int wParam, int lParam);
        [DllImport("user32.dll", EntryPoint = "ReleaseCapture")]
        public static extern int ReleaseCapture();

也就是你的鼠标进来的时候先要和这个有关系，然后再执行其他的，或许这里就是原因。
你在调用这两个函数的时候先注释一下看看
如果是这个问题，修改下代码 我能说的 就这点

[andy1020tc]

谢谢大家了 是我XAML里的问题 找出来了 工具条的IsOverflowOpen属性在作怪
改为FALSE就好了

[Bullatus]

你用窗体的PreviewMouseDown事件看看，你的第一次操作是否传入了