WPF 创建自定义窗体
2021-05-14 11:28
标签：alt review mini enter temp foreach break mes template 在前面的一篇博客"WPF 自定义Metro Style窗体"，展示了如何创建一个类似于Metro Style的Window，并在程序中使用。但是这个窗体不能够自由的改变大小。今天的博客中将展示如何创建一个可以通过拖拽来改变大小的Metro Style窗体。 实现思路，在Windows ControlTemplate中增加8个背景透明Rectangle，分别放置于Left, Right, Top, TopLeft, TopRight, Bottom, BottomLeft, BottomRight这8个位置， XAML： C#: 到此为止，就实现了一个可以拖拽改变大小的自定义窗体。 运行效果： 感谢您的阅读，代码点击这里下载。 WPF 创建自定义窗体 标签：alt review mini enter temp foreach break mes template 原文地址：http://www.cnblogs.com/wangchaoyuana/p/7523396.html
ControlTemplate template = App.Current.FindResource("MetroWindowControlTemplate") as ControlTemplate;
if(template != null)
{
//....
Grid resizeGrid = template.FindName("ResizeGrid", this) as Grid;
if(resizeGrid != null)
{
foreach (UIElement element in resizeGrid.Children)
{
Rectangle resizeRectangle = element as Rectangle;
if (resizeRectangle != null)
{
resizeRectangle.PreviewMouseDown += ResizeRectangle_PreviewMouseDown;
resizeRectangle.MouseMove += ResizeRectangle_MouseMove;
}
}
}
}
private void ResizeRectangle_PreviewMouseDown(object sender, MouseButtonEventArgs e)
{
Rectangle rectangle = sender as Rectangle;
if(rectangle != null)
{
switch(rectangle.Name)
{
case "Top":
Cursor = Cursors.SizeNS;
ResizeWindow(ResizeDirection.Top);
break;
case "Bottom":
Cursor = Cursors.SizeNS;
ResizeWindow(ResizeDirection.Bottom);
break;
case "Left":
Cursor = Cursors.SizeWE;
ResizeWindow(ResizeDirection.Left);
break;
case "Right":
Cursor = Cursors.SizeWE;
ResizeWindow(ResizeDirection.Right);
break;
case "TopLeft":
Cursor = Cursors.SizeNWSE;
ResizeWindow(ResizeDirection.TopLeft);
break;
case "TopRight":
Cursor = Cursors.SizeNESW;
ResizeWindow(ResizeDirection.TopRight);
break;
case "BottomLeft":
Cursor = Cursors.SizeNESW;
ResizeWindow(ResizeDirection.BottomLeft);
break;
case "BottomRight":
Cursor = Cursors.SizeNWSE;
ResizeWindow(ResizeDirection.BottomRight);
break;
default:
break;
}
}
}
private void ResizeRectangle_MouseMove(object sender, MouseEventArgs e)
{
Rectangle rectangle = sender as Rectangle;
if (rectangle != null)
{
switch (rectangle.Name)
{
case "Top":
Cursor = Cursors.SizeNS;
break;
case "Bottom":
Cursor = Cursors.SizeNS;
break;
case "Left":
Cursor = Cursors.SizeWE;
break;
case "Right":
Cursor = Cursors.SizeWE;
break;
case "TopLeft":
Cursor = Cursors.SizeNWSE;
break;
case "TopRight":
Cursor = Cursors.SizeNESW;
break;
case "BottomLeft":
Cursor = Cursors.SizeNESW;
break;
case "BottomRight":
Cursor = Cursors.SizeNWSE;
break;
default:
break;
}
}
}
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern IntPtr SendMessage(IntPtr hWnd, UInt32 msg, IntPtr wParam, IntPtr lParam);
private void ResizeWindow(ResizeDirection direction)
{
SendMessage(_hwndSource.Handle, 0x112, (IntPtr)(61440 + direction), IntPtr.Zero);
}
