Assembly : System.Drawing (dans system.drawing.dll)
SyntaxePublic Class PointConverter Inherits TypeConverter
Dim instance As PointConverter
public class PointConverter : TypeConverter
public ref class PointConverter : public TypeConverter
public class PointConverter extends TypeConverter
public class PointConverter extends TypeConverter
ExempleL'exemple de code suivant illustre l'utilisation de PointConverter et de l'opérateur op_Subtraction. Cet exemple est conçu pour être utilisé avec Windows Forms. Collez ce code dans un formulaire et appelez la méthode ShowPointConverter lors de la gestion de l'événement Paint du formulaire, en passant e comme PaintEventArgs.
Private Sub ShowPointConverter(ByVal e As PaintEventArgs) ' Create the PointConverter. Dim converter As System.ComponentModel.TypeConverter = _ System.ComponentModel.TypeDescriptor.GetConverter(GetType(Point)) Dim point1 As Point = _ CType(converter.ConvertFromString("200, 200"), Point) ' Use the subtraction operator to get a second point. Dim point2 As Point = Point.op_Subtraction(point1, _ New Size(190, 190)) ' Draw a line between the two points. e.Graphics.DrawLine(Pens.Black, point1, point2) End Sub
private void ShowPointConverter(PaintEventArgs e) { // Create the PointConverter. System.ComponentModel.TypeConverter converter = System.ComponentModel.TypeDescriptor.GetConverter(typeof(Point)); Point point1 = (Point) converter.ConvertFromString("200, 200"); // Use the subtraction operator to get a second point. Point point2 = point1 - new Size(190, 190); // Draw a line between the two points. e.Graphics.DrawLine(Pens.Black, point1, point2); }
void ShowPointConverter( PaintEventArgs^ e ) { // Create the PointConverter. System::ComponentModel::TypeConverter^ converter = System::ComponentModel::TypeDescriptor::GetConverter( Point::typeid ); Point point1 = *dynamic_cast<Point^>(converter->ConvertFromString( "200, 200" )); // Use the subtraction operator to get a second point. Point point2 = point1 - System::Drawing::Size( 190, 190 ); // Draw a line between the two points. e->Graphics->DrawLine( Pens::Black, point1, point2 ); }
private void ShowPointConverter(PaintEventArgs e) { // Create the PointConverter. PointConverter converter = new PointConverter(); Point point1 = (Point)converter.ConvertFromString("200, 200"); // Use the subtraction operator to get a second point. Point point2 = Point.op_Subtraction(point1 , new Size(190, 190)); // Draw a line between the two points. e.get_Graphics().DrawLine(Pens.get_Black(), point1, point2); } //ShowPointConverter
Sécurité des threads
Plates-formesWindows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Édition Media Center, Windows XP Professionnel Édition x64, Windows XP SP2, Windows XP Starter Edition
Le .NET Framework ne prend pas en charge toutes les versions de chaque plate-forme. Pour obtenir la liste des versions prises en charge, consultez Configuration requise.
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