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Tradução
Original
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DrawItemEventHandler Representante
.NET Framework 2.0
Assembly: System.Windows.Forms (em System.Windows.Forms. dll)
Parâmetros
- sender
- Tipo: System.Object
A origem do evento.
- e
- Tipo: System.Windows.Forms.DrawItemEventArgs
A DrawItemEventArgs that contains the event data.
// Declare the MainMenu control. internal System.Windows.Forms.MainMenu MainMenu1; // Declare MenuItem2 as With-Events because it will be user drawn. internal System.Windows.Forms.MenuItem MenuItem2; private void InitializeMenu() { // Create MenuItem1, which will be drawn by the operating system. MenuItem MenuItem1 = new MenuItem("Regular Menu Item"); // Create MenuItem2. MenuItem2 = new MenuItem("Custom Menu Item"); // Set OwnerDraw property to true. This requires handling the // DrawItem event for this menu item. MenuItem2.OwnerDraw = true; //Add the event-handler delegate to handle the DrawItem event. MenuItem2.DrawItem += new DrawItemEventHandler(DrawCustomMenuItem); // Add the items to the menu. MainMenu1 = new MainMenu(new MenuItem[]{MenuItem1, MenuItem2}); // Add the menu to the form. this.Menu = this.MainMenu1; } // Draw the custom menu item. private void DrawCustomMenuItem(object sender, DrawItemEventArgs e) { // Cast the sender to MenuItem so you can access text property. MenuItem customItem = (MenuItem) sender; // Create a Brush and a Font to draw the MenuItem. System.Drawing.Brush aBrush = System.Drawing.Brushes.DarkMagenta; Font aFont = new Font("Garamond", 10, FontStyle.Italic, GraphicsUnit.Point); // Get the size of the text to use later to draw an ellipse // around the item. SizeF stringSize = e.Graphics.MeasureString( customItem.Text, aFont); // Draw the item and then draw the ellipse. e.Graphics.DrawString(customItem.Text, aFont, aBrush, e.Bounds.X, e.Bounds.Y); e.Graphics.DrawEllipse(new Pen(System.Drawing.Color.Black, 2), new Rectangle(e.Bounds.X, e.Bounds.Y, (System.Int32)stringSize.Width, (System.Int32)stringSize.Height)); }
// Declare the MainMenu control.
System.Windows.Forms.MainMenu mainMenu1;
// Declare MenuItem2 as With-Events because it will be user drawn.
System.Windows.Forms.MenuItem menuItem2;
private void InitializeMenu()
{
// Create MenuItem1, which will be drawn by the operating system.
MenuItem menuItem1 = new MenuItem("Regular Menu Item");
// Create MenuItem2.
menuItem2 = new MenuItem("Custom Menu Item");
// Set OwnerDraw property to true. This requires handling the
// DrawItem event for this menu item.
menuItem2.set_OwnerDraw(true);
//Add the event-handler delegate to handle the DrawItem event.
menuItem2.add_DrawItem(new DrawItemEventHandler(DrawCustomMenuItem));
// Add the items to the menu.
mainMenu1 = new MainMenu(new MenuItem[] { menuItem1, menuItem2 });
// Add the menu to the form.
this.set_Menu(this.mainMenu1);
} //InitializeMenu
// Draw the custom menu item.
private void DrawCustomMenuItem(Object sender, DrawItemEventArgs e)
{
// Cast the sender to MenuItem so you can access text property.
MenuItem customItem = (MenuItem)sender;
// Create a Brush and a Font to draw the MenuItem.
System.Drawing.Brush aBrush = System.Drawing.Brushes.get_DarkMagenta();
Font aFont =
new Font("Garamond", 10, FontStyle.Italic, GraphicsUnit.Point);
// Get the size of the text to use later to draw an ellipse
// around the item.
SizeF stringSize =
e.get_Graphics().MeasureString(customItem.get_Text(), aFont);
// Draw the item and then draw the ellipse.
e.get_Graphics().
DrawString(customItem.get_Text(), aFont, aBrush,
e.get_Bounds().get_X(), e.get_Bounds().get_Y());
e.get_Graphics().
DrawEllipse(new Pen(System.Drawing.Color.get_Black(), 2),
new Rectangle(e.get_Bounds().get_X(), e.get_Bounds().get_Y(),
System.Convert.ToInt32((System.Int32)stringSize.get_Width()),
System.Convert.ToInt32((System.Int32)stringSize.get_Height())));
} //DrawCustomMenuItem
