DragMove()和最大化 [英] DragMove() and Maximize

问题描述

我在WPF中的自定义窗口有问题(AllowTransparency，WindowStyle = None). DragMove()方法效果很好，但是当我最大化窗口或Windows 7 Aero Snap自动最大化窗口时，此方法根本不起作用.因此，我无法通过鼠标拖动来取消捕捉窗口并将其状态返回到WindowState.Normal.左右Aero Snap效果不错，我可以无问题地捕捉和取消捕捉窗口.但是，当最大化时，除了Win + Down组合以外，其他任何方法都无效.也许有人知道如何解决此问题，或者在哪里可以找到其他方法来使用Aero Snap功能正常运行自定义窗口的DragMove?

I have a problem with my custom window (AllowTransparency, WindowStyle=None) in WPF. DragMove() method works good, but when I maximize window, or it maximizing automatically by Windows 7 Aero Snap, this method does not work at all. So I can't unsnap window with mouse drag and return it state to WindowState.Normal. Left and Right Aero Snap works good, I can snap and unsnap window without a problem. But when it maximized, nothing works except Win+Down combination. Maybe somebody knows how to solve this problem or where can I find other ways to do proper DragMove of custom window with working Aero Snap features?

推荐答案

这是我的方法.尝试使其更短)))

Here is my method. Try make it shorter )))

private void InitHeader()
{
    var border = Find<Border>("borderHeader");
    var restoreIfMove = false;

    border.MouseLeftButtonDown += (s, e) =>
    {
        if (e.ClickCount == 2)
        {
            if ((ResizeMode == ResizeMode.CanResize) ||
                (ResizeMode == ResizeMode.CanResizeWithGrip))
            {
                SwitchState();
            }
        }
        else
        {
            if (WindowState == WindowState.Maximized)
            {
                restoreIfMove = true;
            }

            DragMove();
        }
    };
    border.MouseLeftButtonUp += (s, e) =>
    {
        restoreIfMove = false;
    };
    border.MouseMove += (s, e) =>
    {
        if (restoreIfMove)
        {
            restoreIfMove = false;
            var mouseX = e.GetPosition(this).X;
            var width = RestoreBounds.Width;
            var x = mouseX - width / 2;

            if (x < 0)
            {
                x = 0;
            }
            else
            if (x + width > screenSize.X)
            {
                x = screenSize.X - width;
            }

            WindowState = WindowState.Normal;
            Left = x;
            Top = 0;
            DragMove();
        }
    };
}

private void SwitchState()
{
    switch (WindowState)
    {
        case WindowState.Normal:
        {
            WindowState = WindowState.Maximized;
            break;
        }
        case WindowState.Maximized:
        {
            WindowState = WindowState.Normal;
            break;
        }
    }
}

(要获取screenSize，我使用本机方法)

(To get screenSize I use native methods)

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