Mouse.OverrideCursor 属性

定义

命名空间:

System.Windows.Input

程序集:

PresentationCore.dll

获取或设置整个应用程序的游标。

public:
 static property System::Windows::Input::Cursor ^ OverrideCursor { System::Windows::Input::Cursor ^ get(); void set(System::Windows::Input::Cursor ^ value); };

public static System.Windows.Input.Cursor OverrideCursor { get; set; }

static member OverrideCursor : System.Windows.Input.Cursor with get, set

Public Shared Property OverrideCursor As Cursor

属性值

Cursor

如果未设置 OverrideCursor，则替代游标或 null。

示例

以下示例演示用于在单个元素和整个应用程序之间切换游标更改范围的 RadioButton 的事件处理程序。 如果引发事件的控件是 rbScopeElementRadioButton，则设置表示游标更改范围的标志，并将 OverrideCursor 设置为 null。 如果引发事件的控件是 rbScopeApplicationRadioButton，则会设置表示游标更改范围的标志，并将 OverrideCursor 设置为名为 DisplayArea的 Border 控件的 Cursor 属性。

// Determines the scope the new cursor will have.
//
// If the RadioButton rbScopeElement is selected, then the cursor
// will only change on the display element.
// 
// If the Radiobutton rbScopeApplication is selected, then the cursor
// will be changed for the entire application
//
private void CursorScopeSelected(object sender, RoutedEventArgs e)
{
    RadioButton source = e.Source as RadioButton;

    if (source != null)
    {
        if (source.Name == "rbScopeElement")
        {
            // Setting the element only scope flag to true
            cursorScopeElementOnly = true;

            // Clearing out the OverrideCursor.  
            Mouse.OverrideCursor = null;
        }
        if (source.Name == "rbScopeApplication")
        {
           // Setting the element only scope flag to false
           cursorScopeElementOnly = false;

           // Forcing the cursor for all elements. 
           Mouse.OverrideCursor = DisplayArea.Cursor;
        }
    }
}

' Determines the scope the new cursor will have.
'
' If the RadioButton rbScopeElement is selected, then the cursor
' will only change on the display element.
' 
' If the Radiobutton rbScopeApplication is selected, then the cursor
' will be changed for the entire application.
'
Private Sub CursorScopeSelected(ByVal sender As Object, ByVal e As RoutedEventArgs)
    Dim source As RadioButton = CType(e.Source, RadioButton)

    If (source.Name = "rbScopeElement") Then
        ' Setting the element only scope flag to true.
        cursorScopeElementOnly = True
        ' Clearing out the OverrideCursor.
        Mouse.OverrideCursor = Nothing

    End If
    If (source.Name = "rbScopeApplication") Then
        ' Setting the element only scope flag to false.
        cursorScopeElementOnly = False
        ' Forcing the cursor for all elements.
        Mouse.OverrideCursor = DisplayArea.Cursor
    End If
End Sub

注解

OverrideCursor 设置为 Cursor 将应用于整个应用程序。

若要清除替代 Cursor，请将 OverrideCursor 设置为 null。

将 OverrideCursor 设置为 None 将强制不显示鼠标光标，但仍会处理鼠标事件。