用拇指拖动wpf窗口：可以透明吗？

发布于 2024-07-14 15:58:59 字数 534 浏览 5 评论 0原文

我一直在测试 Blu 并且我注意到我可以拖动窗口。这个窗口是透明的。我尝试用拇指做同样的事情，但我不知道如何使其透明。窗口的其余部分是透明的，但拇指不是。

有没有办法让拇指透明，或者我应该使用其他技术？

我使用这个活动：

 private void DragThumb_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
    {
        Canvas.SetLeft(this, Canvas.GetLeft(this) + e.HorizontalChange);
        Canvas.SetTop(this, Canvas.GetTop(this) + e.VerticalChange);
    }

谢谢

原文

I've been testing Blu and I noticed that I could drag the window. This window is transparent. I tried to do the same with a Thumb, but I don't know how to make it transparent. The rest of the window is transparent, but the thumb is not.

Is there any way to make the thumb transparent, or should I use another technique?

I use this event:

 private void DragThumb_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
    {
        Canvas.SetLeft(this, Canvas.GetLeft(this) + e.HorizontalChange);
        Canvas.SetTop(this, Canvas.GetTop(this) + e.VerticalChange);
    }

Thank you

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许你一世情深 2024-07-21 15:58:59

您可以使用不透明度属性将拇指控件设为不可见。

Opacity="1"（完全可见）

或

Opacity="0"（不可见）

来自我的应用程序的示例

        <Thumb Name="myThumb"
               Width="10"
               Height="10"
               DragDelta="onDragDelta"
               DragStarted="onDragStarted"
               DragCompleted="onDragCompleted"
               Margin="5"
               HorizontalAlignment="Right"
               Opacity="1">

        </Thumb>

You can turn a thumb control invisible with the Opacity attribute.

Opacity="1" (full visible)

Opacity="0" (not visible)

Sample from my application

        <Thumb Name="myThumb"
               Width="10"
               Height="10"
               DragDelta="onDragDelta"
               DragStarted="onDragStarted"
               DragCompleted="onDragCompleted"
               Margin="5"
               HorizontalAlignment="Right"
               Opacity="1">

        </Thumb>

回复收藏 0 原文

对你再特殊 2024-07-21 15:58:59

不确定我是否正确理解您的问题，但是要拖动 wpf 窗口，您需要在表单（或表单本身）上的组件的单击事件处理程序中键入：

this.DragMove();

无需自己实现拖动功能。

更新：小例子：创建一个窗口，在其中放置一个按钮。将窗口的 MouseDown 和按钮的 Click 连线如下：

    private void Window_MouseDown(object sender, MouseButtonEventArgs e)
{
    this.DragMove();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
    MessageBox.Show("hey");
}

工作完美，您可以拖动窗口，按钮继续工作...

Not sure if I understand your question correctly, but to drag a wpf window, all you need to type in the click event handler of a component on the form (or the form itsself) is:

this.DragMove();

There is no need to implement the dragging functionality yourself.

Update: small example: Create a window, place a button in it. Wire the MouseDown of the window and the Click of the button as:

    private void Window_MouseDown(object sender, MouseButtonEventArgs e)
{
    this.DragMove();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
    MessageBox.Show("hey");
}

Works perfectly, you can drag the window, and the button continues to work...

回复收藏 0 原文

难如初 2024-07-21 15:58:59

或者，您可以将 Thumb 控件的控件模板设置为“透明”，如下代码片段：

<Canvas Background="LightGray">
    <Grid Canvas.Left="451" Canvas.Top="148" Width="120" Height="120" Background="Red">
        <Thumb DragDelta="Thumb_DragDelta" Cursor="SizeAll"
               DataContext="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Grid}}">
            <Thumb.Template>
                <ControlTemplate>
                    <Grid>
                        <Ellipse Fill="Black" Width="10" Height="10" HorizontalAlignment="Left" VerticalAlignment="Top"/>
                        <Rectangle Fill="Transparent" />
                    </Grid>
                </ControlTemplate>
            </Thumb.Template>
        </Thumb>
        <Ellipse Fill="Pink" Height="100" Width="100" IsHitTestVisible="False" />
    </Grid></Canvas>

DragDelta 事件：

private void Thumb_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
    var thumb = (System.Windows.Controls.Primitives.Thumb)sender;
    var grid = (Grid)(thumb.DataContext);
    if (grid == null) return;
    var left = Canvas.GetLeft(grid);
    var top = Canvas.GetTop(grid);
    Canvas.SetLeft(grid, left + e.HorizontalChange);
    Canvas.SetTop(grid, top + e.VerticalChange);
}

< img src="https://i.sstatic.net/3rLw0.png" alt="在此处输入图像描述">

Optionally, you can set control template of Thumb control as 'Transparent', as following snippet code:

<Canvas Background="LightGray">
    <Grid Canvas.Left="451" Canvas.Top="148" Width="120" Height="120" Background="Red">
        <Thumb DragDelta="Thumb_DragDelta" Cursor="SizeAll"
               DataContext="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Grid}}">
            <Thumb.Template>
                <ControlTemplate>
                    <Grid>
                        <Ellipse Fill="Black" Width="10" Height="10" HorizontalAlignment="Left" VerticalAlignment="Top"/>
                        <Rectangle Fill="Transparent" />
                    </Grid>
                </ControlTemplate>
            </Thumb.Template>
        </Thumb>
        <Ellipse Fill="Pink" Height="100" Width="100" IsHitTestVisible="False" />
    </Grid></Canvas>

DragDelta event:

private void Thumb_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
    var thumb = (System.Windows.Controls.Primitives.Thumb)sender;
    var grid = (Grid)(thumb.DataContext);
    if (grid == null) return;
    var left = Canvas.GetLeft(grid);
    var top = Canvas.GetTop(grid);
    Canvas.SetLeft(grid, left + e.HorizontalChange);
    Canvas.SetTop(grid, top + e.VerticalChange);
}