你如何在应用程序中禁用Aero对齐？ [英] How do you disable Aero Snap in an application?

问题描述

是否有可能取消在WPF应用程序的Windows 7的自动窗口对接功能？

Is it possible to disable the automatic window-docking feature of Windows 7 in a WPF application?

推荐答案

最近，我需要做的这一个自定义的，可调整大小的 ResizeMode = CanResizeWithGrip WPF无窗口装饰窗口（没有标题栏和按钮）。我用 DragMove（）来移动窗口，当它由AeroSnap最大化，窗口变得不可移动，从而锁定到位。

I recently needed to do this to a custom, resizable ResizeMode = CanResizeWithGrip WPF window with no window decorations (no title bar and buttons). I used DragMove() to move the window, and when It is maximized by AeroSnap, the window becomes unmovable and hence locked in place.

我试过谷仓猴子的解决方案，该部分工作，但它仍然会表现出AeroSnap图形和调整应用全屏大小。我修改了它的下方，现在它的工作原理期望：还可以调整大小，但没有AeroSnap可言

I tried Barn Monkey's solution, which partially worked, but it would still show the AeroSnap graphic and resize the app to fullscreen size. I modified it below and now it works as expect: still resizable, but no AeroSnap at all.

void Window1_MouseDown(object sender, MouseButtonEventArgs e)
{
    if( e.LeftButton == MouseButtonState.Pressed )
    {
        // this prevents win7 aerosnap
        if( this.ResizeMode != System.Windows.ResizeMode.NoResize )
        {
            this.ResizeMode = System.Windows.ResizeMode.NoResize;
            this.UpdateLayout();
        }

        DragMove();
    }
}

void Window1_MouseUp( object sender, MouseButtonEventArgs e )
{
    if( this.ResizeMode == System.Windows.ResizeMode.NoResize )
    {
        // restore resize grips
        this.ResizeMode = System.Windows.ResizeMode.CanResizeWithGrip;
        this.UpdateLayout();
    }
}

编辑：

这已经有一段时间，因为我写了这个，但因为人们还是看这个我会与我现在用的更新。我仍然使用基本为preventing边缘贴紧同样的方法和移动我的窗口，但我现在让他们挤进定制行为＆LT;＆GT; 我可以连接到班一个窗口或用户控件。这使得他们很容易与MVVM（我用微卡利）。

It's been a while since I wrote this, but since people still look at this I'll update it with what I use now. I still use basically the same method for preventing edge snapping and moving my windows, but I now have them packed into custom Behavior<> classes that I can attach to a Window or UserControl. This makes them very easy to use with MVVM (I use Caliburn Micro).

行为类是：

/// <summary>
/// behavior that makes a window/dialog draggable by clicking anywhere 
/// on it that is not a control (ie, button)
/// </summary>
public class DragMoveBehavior<T> : Behavior<T> where T : FrameworkElement
{
    protected override void OnAttached()
    {
        AssociatedObject.MouseLeftButtonDown += MouseDown;
        base.OnAttached();
    }

    protected override void OnDetaching()
    {
        AssociatedObject.MouseLeftButtonDown -= MouseDown;
        base.OnDetaching();
    }

    void MouseDown( object sender, EventArgs ea ) => Window.GetWindow( sender as T )?.DragMove();
}

public class WinDragMoveBehavior : DragMoveBehavior<Window> { }

public class UCDragMoveBehavior : DragMoveBehavior<UserControl> { }

/// <summary>
/// behavior that makes a window/dialog not resizable while clicked.  this prevents
/// the window from being snapped to the edge of the screen (AeroSnap).  if DragMoveBehavior
/// is also used, this must be attached first.
/// </summary>
/// <typeparam name="T"></typeparam>
public class NoSnapBehavior<T> : Behavior<T> where T : FrameworkElement
{
    ResizeMode lastMode = ResizeMode.NoResize;
    protected override void OnAttached()
    {
        AssociatedObject.MouseLeftButtonDown += MouseDown;
        AssociatedObject.MouseLeftButtonUp += MouseUp;
        base.OnAttached();
    }

    protected override void OnDetaching()
    {
        AssociatedObject.MouseLeftButtonDown -= MouseDown;
        AssociatedObject.MouseLeftButtonUp -= MouseUp;
        base.OnDetaching();
    }

    /// <summary>
    /// make it so the window can be moved by dragging
    /// </summary>
    void MouseDown( object sender, EventArgs ea )
    {
        var win = Window.GetWindow( sender as T );
        if( win != null && win.ResizeMode != ResizeMode.NoResize )
        {
            lastMode = win.ResizeMode;
            win.ResizeMode = ResizeMode.NoResize;
            win.UpdateLayout();
        }
    }

    void MouseUp( object sender, EventArgs ea )
    {
        var win = Window.GetWindow( sender as T );
        if( win != null && win.ResizeMode != lastMode )
        {
            win.ResizeMode = lastMode;
            win.UpdateLayout();
        }
    }
}

public class WinNoSnapBehavior : NoSnapBehavior<Window> { }

public class UCNoSnapBehavior : NoSnapBehavior<UserControl> { }

然后我将它们连接到我的对话框中查看与：

I then attach them to my dialog box Views with:

<UserControl ...
  xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
  xmlns:utli:="...">
  <i:Interaction.Behaviors>
    <util:UCNoSnapBehavior/>
    <util:UCDragMoveBehavior/>
  </i:Interaction.Behaviors>

  ...

</UserControl>

和它只是工作！

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