自学WPF--第三课透明与混色

来源：互联网发布：淘宝裂变是什么意思编辑：程序博客网时间：2024/06/05 13:19

WPF可是很好的设置空间与窗体透明，通过属性Opacity设置（属性值介于0-1），窗体透明还需设置窗体的AllowTransparency属性为True(允许透明),以及WindowStyle为None(窗体无边框),

示例如下图：

代码如下：

</Grid>

设置鼠标控制窗体移动事件代码如下：

C#:

private double oldx, oldy;

private void Window_MouseDown(object sender, MouseButtonEventArgs e)

{

oldx = e.GetPosition(this).X;

oldy = e.GetPosition(this).Y;

}

private void Window_MouseMove(object sender, MouseEventArgs e)

{

if (e.LeftButton == MouseButtonState.Pressed)

{

double x = e.GetPosition(this).X;

double y = e.GetPosition(this).Y;

double dx = x - oldx;

double dy = y - oldy;

this.Left += dx;

this.Top += dy;

oldx = x;

oldy = y;

}

vb.net代码：

Class MainWindow
Dim oldx As Double
Dim oldy As Double

    Private Sub MainWindow_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Input.MouseButtonEventArgs) Handles Me.MouseDown
        oldx = e.GetPosition(Me).X
        oldy = e.GetPosition(Me).Y
    End Sub

    Private Sub MainWindow_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Input.MouseEventArgs) Handles Me.MouseMove

            If e.LeftButton = MouseButtonState.Pressed Then
                Dim x As Double = e.GetPosition(Me).X
                Dim y As Double = e.GetPosition(Me).Y
                Dim dx As Double = x - oldx
                Dim dy As Double = y - oldy
                Me.Left += dx
                Me.Top += dy
                oldx = x
                oldy = y
            End If

End Sub
End Class