具有最小化动画的自定义窗口样式 [英] Custom window style with minimize animation

问题描述

我想要一个自定义的窗口，所以遵循了一些教程，通过将窗口样式设置为无，然后自己添加标题栏/恢复/最小化/关闭按钮来启用此功能.最小化是通过简单地处理点击事件并将Window-state设置为最小化来实现的，但这并没有显示你在Windows 7上看到的最小化动画，只是立即隐藏了窗口，与其他窗口一起使用时感觉很奇怪有动画效果，因为您往往会觉得应用程序正在关闭.

I wanted to have a customized window so followed a few tutorials which enable this by setting the window style to none, and then adding the title-bar/restore/minimize/close buttons yourself. The minimize is achieved by simply handling the click event and setting the Window-state to minimized, but this doesn't show the minimize animation you see on Windows 7, and just instantly hides the window, which feels very odd when used with other windows that do animate, as you tend to feel the application is closing.

那么，是否可以启用该动画?.. 当您将 WindowStyle 更改为 none 时，它​​似乎被禁用了.

So, is there anyway of enabling that animation? .. it seems to be disabled when you change the WindowStyle to none.

测试代码

public partial class MainWindow : Window
{
    public MainWindow()
    {
        WindowStyle = WindowStyle.None;
        InitializeComponent();
    }

    [DllImport("user32.dll")]
    static extern int SendMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);

    protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
    {
        base.OnMouseLeftButtonDown(e);

        // this doesnt seem to animate
        SendMessage(new WindowInteropHelper(this).Handle, 0x0112, (IntPtr)0xF020, IntPtr.Zero);
    }

    protected override void OnMouseRightButtonDown(MouseButtonEventArgs e)
    {
        base.OnMouseRightButtonDown(e);

        WindowStyle = WindowStyle.SingleBorderWindow;
        WindowState = WindowState.Minimized;
    }

    protected override void OnActivated(EventArgs e)
    {
        base.OnActivated(e);

        Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, new Action(() => WindowStyle = WindowStyle.None));
    }
}

推荐答案

稍微尝试后编辑答案.

有两种选择:1.您可以在最小化和激活窗口之前更改样式:

There are two options: 1. You can change the Style just before minimising and activating the window:

private void Button_OnClick(object sender, RoutedEventArgs e)
{
    //change the WindowStyle to single border just before minimising it
    this.WindowStyle = WindowStyle.SingleBorderWindow;
    this.WindowState = WindowState.Minimized;
}

private void MainWindow_OnActivated(object sender, EventArgs e)
{
    //change the WindowStyle back to None, but only after the Window has been activated
    Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, new Action(() => WindowStyle = WindowStyle.None));
}

此解决方案有一个限制 - 如果您从任务栏将其最小化，它不会为窗口设置动画.

This solution has one limitation - it doesn't animate the window if you minimise it from the taskbar.

2. 通过发送带有 SC_MINIMIZE 参数的 WM_SYSCOMMAND 消息来最小化窗口，并通过钩入消息来更改边框样式 (HwndSource.FromHwnd(m_hWnd).AddHook(WindowProc)).

2. Minimise the Window by sending it WM_SYSCOMMAND message with SC_MINIMIZE parameter and changing the border style by hooking into the message (HwndSource.FromHwnd(m_hWnd).AddHook(WindowProc)).

internal class ApiCodes
{
    public const int SC_RESTORE = 0xF120;
    public const int SC_MINIMIZE = 0xF020;
    public const int WM_SYSCOMMAND = 0x0112;
}

private IntPtr hWnd;

[DllImport("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int wMsg, IntPtr wParam, IntPtr lParam);


private void Window_Loaded(object sender, RoutedEventArgs e)
{
    hWnd = new WindowInteropHelper(this).Handle;
    HwndSource.FromHwnd(hWnd).AddHook(WindowProc);
}

private void Button_Click(object sender, RoutedEventArgs e)
{
    SendMessage(hWnd, ApiCodes.WM_SYSCOMMAND, new IntPtr(ApiCodes.SC_MINIMIZE), IntPtr.Zero);
}

private IntPtr WindowProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
    if (msg == ApiCodes.WM_SYSCOMMAND)
    {
        if (wParam.ToInt32() == ApiCodes.SC_MINIMIZE)
        {
            WindowStyle = WindowStyle.SingleBorderWindow;
            WindowState = WindowState.Minimized;
            handled = true;
        }
        else if (wParam.ToInt32() == ApiCodes.SC_RESTORE)
        {
            WindowState = WindowState.Normal;
            WindowStyle = WindowStyle.None;
            handled = true;
        }
    }
    return IntPtr.Zero;
}

上述方法都不是很好，因为它们只是黑客.最大的缺点是当您单击按钮时，您实际上可以看到边框重新出现片刻.我想看看其他人提出了什么，因为我自己并不认为这是一个好的答案.

Neither of the above methods are great, because they are just hacks. The biggest downside is that you can actually see the border reappearing for a moment when you click the button. I'd like to see what others come up with as I don't consider this as a good answer myself.

这篇关于具有最小化动画的自定义窗口样式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！