StringFormat.HotkeyPrefix 属性

定义

命名空间:

System.Drawing

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v8.0.0

Source:

StringFormat.cs

获取或设置此 StringFormat 对象的 HotkeyPrefix 对象。

public:
 property System::Drawing::Text::HotkeyPrefix HotkeyPrefix { System::Drawing::Text::HotkeyPrefix get(); void set(System::Drawing::Text::HotkeyPrefix value); };

public System.Drawing.Text.HotkeyPrefix HotkeyPrefix { get; set; }

member this.HotkeyPrefix : System.Drawing.Text.HotkeyPrefix with get, set

Public Property HotkeyPrefix As HotkeyPrefix

属性值

HotkeyPrefix

此 StringFormat 对象的 HotkeyPrefix 对象，默认值为 None。

示例

下面的代码示例演示如何使用 HotkeyPrefix 属性设置键盘快捷方式。 它还演示如何使用 FromSystemColor 方法。 若要运行此示例，请将代码粘贴到窗体中，处理窗体的事件 Paint 并调用以下方法，将 e 作为 PaintEventArgs传递。

private:
   void ShowHotKey( PaintEventArgs^ e )
   {
      // Declare the string with a keyboard shortcut.
      String^ text = "&Click Here";

      // Declare a new StringFormat.
      StringFormat^ format = gcnew StringFormat;

      // Set the HotkeyPrefix property.
      format->HotkeyPrefix = System::Drawing::Text::HotkeyPrefix::Show;

      // Draw the string.
      Brush^ theBrush = SystemBrushes::FromSystemColor( SystemColors::Highlight );
      e->Graphics->DrawString( text, this->Font, theBrush, 30, 40, format );
   }

private void ShowHotKey(PaintEventArgs e)
{

    // Declare the string with a keyboard shortcut.
    string text = "&Click Here";

    // Declare a new StringFormat.
    StringFormat format = new StringFormat();

    // Set the HotkeyPrefix property.
    format.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.Show;

    // Draw the string.
    Brush theBrush = 
        SystemBrushes.FromSystemColor(SystemColors.Highlight);

    e.Graphics.DrawString(text, this.Font, theBrush, 30, 40, format);
}

Private Sub ShowHotKey(ByVal e As PaintEventArgs)

    ' Declare the string with keyboard shortcut.
    Dim text As String = "&Click Here"

    ' Declare a new StringFormat.
    Dim format As New StringFormat

    ' Set the HotkeyPrefix property.
    format.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.Show

    ' Draw the string.
    Dim theBrush As Brush = _
        SystemBrushes.FromSystemColor(SystemColors.Highlight)
    e.Graphics.DrawString(text, Me.Font, theBrush, 30, 40, format)
End Sub

注解

在图形用户界面中，热键是单词中的带下划线的字母， (通常与另一个键（例如 Alt 键) 组合在一起，可按键盘激活单词表示的功能。