Glyph.GetHitTest(Point) Método

Definição

Espaço de Nomes:
System.Windows.Forms.Design.Behavior
Assemblagem:
System.Design.dll
Assemblagem:
System.Windows.Forms.Design.dll
Assemblagens:
System.Design.dll, System.Windows.Forms.Design.dll
Origem:
Glyph.cs
Origem:
Glyph.cs
Origem:
Glyph.cs
Origem:
Glyph.cs
Origem:
Glyph.cs

Fornece lógica para o teste de sucesso.

public:
 abstract System::Windows::Forms::Cursor ^ GetHitTest(System::Drawing::Point p);
public abstract System.Windows.Forms.Cursor GetHitTest(System.Drawing.Point p);
public abstract System.Windows.Forms.Cursor? GetHitTest(System.Drawing.Point p);
abstract member GetHitTest : System.Drawing.Point -> System.Windows.Forms.Cursor
Public MustOverride Function GetHitTest (p As Point) As Cursor

Parâmetros

p
Point

Um ponto para testar em hit-test.

Devoluções

Cursor

A se o Cursor estiver associado a Glyph; caso contrário, p.null

Exemplos

O exemplo seguinte demonstra como sobrescrever o GetHitTest para ver se o ponto está dentro deste glifo. Este exemplo de código faz parte de um exemplo maior fornecido para a BehaviorService classe.

public:
    virtual Cursor^ GetHitTest(Point p) override
    {
        // GetHitTest is called to see if the point is
        // within this glyph.  This gives us a chance to decide
        // what cursor to show.  Returning null from here means
        // the mouse pointer is not currently inside of the
        // glyph.  Returning a valid cursor here indicates the
        // pointer is inside the glyph, and also enables our
        // Behavior property as the active behavior.
        if (Bounds.Contains(p))
        {
            return Cursors::Hand;
        }
        return nullptr;
    }

public override Cursor GetHitTest(Point p)
{
    // GetHitTest is called to see if the point is
    // within this glyph.  This gives us a chance to decide
    // what cursor to show.  Returning null from here means
    // the mouse pointer is not currently inside of the glyph.
    // Returning a valid cursor here indicates the pointer is
    // inside the glyph, and also enables our Behavior property
    // as the active behavior.
    if (Bounds.Contains(p))
    {
        return Cursors.Hand;
    }

    return null;
}

Public Overrides Function GetHitTest(ByVal p As Point) As Cursor
    ' GetHitTest is called to see if the point is
    ' within this glyph.  This gives us a chance to decide
    ' what cursor to show.  Returning null from here means
    ' the mouse pointer is not currently inside of the glyph.
    ' Returning a valid cursor here indicates the pointer is
    ' inside the glyph,and also enables our Behavior property
    ' as the active behavior.
    If Bounds.Contains(p) Then
        Return Cursors.Hand
    End If

    Return Nothing

End Function

Observações

O GetHitTest método é um abstract método que obriga Glyph as implementações a fornecer lógica de teste de acerto. Em qualquer momento, se o Glyph tiver decidido envolver-se nesse local, terá de devolver um válido Cursor. Caso contrário, voltar null fará com que ignore BehaviorService a localização.

Aplica-se a

Ver também