MouseEventArgs.Location 屬性

定義

取得滑鼠在產生滑鼠事件期間的位置。Gets the location of the mouse during the generating mouse event.

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,包含 X 及 Y 滑鼠座標 (以像素為單位),這是相對於表單左上角的位置。A Point that contains the x- and y- mouse coordinates, in pixels, relative to the upper-left corner of the form.

範例

下列程式碼範例會使用Location屬性來追蹤滑鼠左鍵的點擊, 並繪製一系列的直線線段以回應使用者輸入。The following code example uses the Location property to track left mouse clicks and draw a series of straight line segments in response to user input. 如果您隱藏表單, 然後重新顯示, 則此範例不會保存繪製的線條。為了簡單起見, 已省略此程式碼。The example does not persist the drawn lines if you hide the form and then redisplay it; this code was omitted for simplicity.

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

適用於

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