WorkflowDesignerMessageFilter.OnMouseMove(MouseEventArgs) 方法

定义

命名空间:

System.Workflow.ComponentModel.Design

程序集:

System.Workflow.ComponentModel.dll

当鼠标指针在对象边界内移动时发生。

protected:
 virtual bool OnMouseMove(System::Windows::Forms::MouseEventArgs ^ eventArgs);

protected virtual bool OnMouseMove (System.Windows.Forms.MouseEventArgs eventArgs);

abstract member OnMouseMove : System.Windows.Forms.MouseEventArgs -> bool
override this.OnMouseMove : System.Windows.Forms.MouseEventArgs -> bool

Protected Overridable Function OnMouseMove (eventArgs As MouseEventArgs) As Boolean

参数

eventArgs

MouseEventArgs

一个 MouseEventArgs，包含有关事件的信息。

返回

Boolean

如果消息已处理，则为 true；否则为 false。

示例

下面的代码示例演示如何重写 OnMouseMove 方法来返回滚动位置和 false，以便设计器结构中的其他组件可以处理此方法。

此代码示例摘自 DesignerShell.cs 文件中的基本设计器宿主 SDK 示例。 有关详细信息，请参阅基本Designer托管。

protected override bool OnMouseMove(MouseEventArgs eventArgs)
{
    //Allow other components to process this event by not returning true.
    if (mouseDown)
    {
        workflowView.ScrollPosition = new Point(eventArgs.X, eventArgs.Y);
    }
    return false;
}

Protected Overrides Function OnMouseMove(ByVal eventArgs As System.Windows.Forms.MouseEventArgs) As Boolean
    ' Allow other components to process this event by not returning true.
    If mouseDown Then
        workflowView.ScrollPosition = New Point(eventArgs.X, eventArgs.Y)
    End If
    Return False
End Function

注解

当鼠标指针在对象边界内移动时发生 OnMouseMove。

另请参阅

• 基本Designer托管