MouseEventArgs.Location 屬性

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

來源:

MouseEventArgs.cs

取得生成事件期間滑鼠的位置。

public:
 property System::Drawing::Point Location { System::Drawing::Point get(); };

public System.Drawing.Point Location { get; }

member this.Location : System.Drawing.Point

Public ReadOnly Property Location As Point

屬性值

Point

Point A 包含 x 和 y- 滑鼠座標，以像素為單位，相對於控制器左上角。

範例

以下程式碼範例利用該 Location 特性追蹤左鍵點擊，並根據使用者輸入繪製一系列直線段。 如果你隱藏表單再重新顯示，範例不會持久化所繪製的線條;為了簡化，這段代碼被省略了。

Point firstPoint;
Boolean haveFirstPoint;

public void EnableDrawing()
{
    this.MouseDown += new MouseEventHandler(Form1_MouseDownDrawing);
}

void Form1_MouseDownDrawing(object sender, System.Windows.Forms.MouseEventArgs e)
{
    if (haveFirstPoint)
    {
        Graphics g = this.CreateGraphics();
        g.DrawLine(Pens.Black, firstPoint, e.Location);
        haveFirstPoint = false;
    }
    else
    {
        firstPoint = e.Location;
        haveFirstPoint = true;
    }
}

Dim FirstPoint As Point
Dim HaveFirstPoint As Boolean = False

Private Sub Form1_MouseDownDrawing(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseDown
    If HaveFirstPoint Then
        Dim g As Graphics = Me.CreateGraphics()
        g.DrawLine(Pens.Black, FirstPoint, e.Location)
        HaveFirstPoint = False
    Else
        FirstPoint = e.Location
        HaveFirstPoint = True
    End If
End Sub

另請參閱

• Button
• Y
• X
• Windows 表單座標
• Windows 表單中的滑鼠事件