SimpleShape.HitTest Method

Determines whether a shape control is located at the specified point on the screen.

Namespace:  Microsoft.VisualBasic.PowerPacks
Assembly:  Microsoft.VisualBasic.PowerPacks.Vs (in Microsoft.VisualBasic.PowerPacks.Vs.dll)

Syntax

'宣告
Public Overrides Function HitTest ( _
    x As Integer, _
    y As Integer _
) As Boolean

public override bool HitTest(
    int x,
    int y
)

public:
virtual bool HitTest(
    int x, 
    int y
) override

abstract HitTest : 
        x:int * 
        y:int -> bool 
override HitTest : 
        x:int * 
        y:int -> bool 

public override function HitTest(
    x : int, 
    y : int
) : boolean

Parameters

• x
  Type: System.Int32
  The horizontal screen coordinate.

• y
  Type: System.Int32
  The vertical screen coordinate.

Return Value

Type: System.Boolean
true if the shape control is located at the specified coordinates; otherwise, false.

Remarks

The x and y parameters represent the current mouse coordinates relative to the screen, not to the control's container.

Examples

The following example demonstrates how to use the HitTest method of the OvalShape control to determine whether the pointer is positioned over the control when the SPACEBAR is pressed.

Private Sub Form1_PreviewKeyDown(
    ByVal sender As Object, 
    ByVal e As System.Windows.Forms.PreviewKeyDownEventArgs
  ) Handles Me.PreviewKeyDown

    If e.KeyCode = Keys.Space Then
        Dim px As Integer
        Dim py As Integer
        Dim hit As Boolean
        px = MousePosition.X
        py = MousePosition.Y
        hit = OvalShape1.HitTest(px, py)
        MsgBox(CStr(hit))
    End If
End Sub

private void form1_PreviewKeyDown(object sender, 
    System.Windows.Forms.PreviewKeyDownEventArgs e)
{
    if (e.KeyCode == Keys.Space)
    {
        int px;
        int py;
        bool hit;
        string result;
        px = MousePosition.X;
        py = MousePosition.Y;
        hit = ovalShape1.HitTest(px, py);
        result = hit.ToString();
        MessageBox.Show(result);
    }
}

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

SimpleShape Class

Microsoft.VisualBasic.PowerPacks Namespace

Other Resources

Introduction to the Line and Shape Controls (Visual Studio)

How to: Draw Lines with the LineShape Control (Visual Studio)

How to: Draw Shapes with the OvalShape and RectangleShape Controls (Visual Studio)