ScreenOrientation 枚举

指定可由 ScreenOrientation 属性访问的设备屏幕的取向角。

命名空间：  Microsoft.WindowsCE.Forms
程序集：  Microsoft.WindowsCE.Forms（在 Microsoft.WindowsCE.Forms.dll 中）

语法

声明
Public Enumeration ScreenOrientation
用法
Dim instance As ScreenOrientation

public enum ScreenOrientation

public enum class ScreenOrientation

public enum ScreenOrientation

成员

	成员名称	说明
	Angle0	指定 0 度的纵向方向。
	Angle90	指定 90 度的方向。
	Angle180	指定 180 度的横向方向。
	Angle270	指定 270 度的方向。

备注

默认的纵向方向为 0 度角。需要 Pocket PC 2003 更新程序。

示例

下面的代码示例演示如何通过 ScreenOrientation 枚举在单击按钮时旋转屏幕方向。此代码示例摘自一个为 SystemSettings 类提供的更大的示例。

' Each click event changes the screen orientation, as determined
' by the variable x, which increments from 0 to 3 and then back
' to 0. Four clicks cycle through the ScreenOrientation enumeration.
Private Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click

   Select Case x
      Case 0

         ' Pass a value for the ScreenOrientation enumeration
         ' to the SetOrientation method, defined below,
         ' and increment x so that the next button
         ' click rotates the screen orientation.
         SetOrientation(ScreenOrientation.Angle90)
         x += 1
      Case 1
         SetOrientation(ScreenOrientation.Angle180)
         x += 1
      Case 2
         SetOrientation(ScreenOrientation.Angle270)
         x += 1
      Case 3
         SetOrientation(ScreenOrientation.Angle0)
         x = 0
      Case Else
         SetOrientation(ScreenOrientation.Angle0)
         x = 0
   End Select
End Sub


' Set the orientation to a value of the
' ScreenOrienation enumeration and update the
' status bar with the current angle.
Private Sub SetOrientation(so As ScreenOrientation)
   ' Set the requested orientation.
   SystemSettings.ScreenOrientation = so

   Me.StatusBar1.Text = SystemSettings.ScreenOrientation.ToString()
End Sub

 // Each click event changes the screen orientation, as determined
 // by the variable x, which increments from 0 to 3 and then back
 // to 0. Four clicks cycle through the ScreenOrientation enumeration.

private void button1_Click(object sender, System.EventArgs e)
{

 switch(x)
 {
  case 0:

   // Pass a value for the ScreenOrientation enumeration
   // to the SetOrientation method, defined below,
   // and increment x so that the next button
   // click rotates the screen orientation.
   SetOrientation(ScreenOrientation.Angle90);
   x++;
   break;
  case 1:
   SetOrientation(ScreenOrientation.Angle180);
   x++;
   break;
  case 2:
   SetOrientation(ScreenOrientation.Angle270);
   x++;
   break;
  case 3:
   SetOrientation(ScreenOrientation.Angle0);
   x = 0;
   break;
  default:
   SetOrientation(ScreenOrientation.Angle0);
   x = 0;
   break;
 }
}

 // Set the orientation to a value of the
 // ScreenOrienation enumeration and update the
 // status bar with the current angle.
private void SetOrientation(ScreenOrientation so)
{
 // Set the requested orientation.

 SystemSettings.ScreenOrientation = so;

 this.statusBar1.Text = SystemSettings.ScreenOrientation.ToString();
}

平台

Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

.NET Framework 和 .NET Compact Framework 并不是对每个平台的所有版本都提供支持。有关支持的版本的列表，请参见.NET Framework 系统要求。

版本信息

.NET Compact Framework

受以下版本支持：3.5、2.0

另请参见

参考

Microsoft.WindowsCE.Forms 命名空间