Screen 类

定义

public ref class Screen

public class Screen

type Screen = class

Public Class Screen

继承

Object

Screen

示例

下面的代码示例演示如何使用类的各种方法和属性 Screen 。 该示例调用该 AllScreens 属性以检索连接到系统的所有屏幕的数组。 对于返回 Screen的每个对象，该示例将设备名称、边界、类型、工作区和主屏幕添加到 a ListBox。 若要使用示例，请向窗体添加 a ListBox 和 a Button ，然后为按钮添加 Click 事件处理程序。

private:
    void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
    {
        // For each screen, add the screen properties to a list box.
        for each (Screen^ screen in Screen::AllScreens) {
            listBox1->Items->Add( 
                String::Concat("Device Name: ", screen->DeviceName));
            listBox1->Items->Add( 
                String::Concat("Bounds: ", screen->Bounds));
            listBox1->Items->Add( 
                String::Concat("Type: ", screen->GetType()));
            listBox1->Items->Add( 
                String::Concat("Working Area: ", screen->WorkingArea));
            listBox1->Items->Add( 
                String::Concat("Primary Screen: ", screen->Primary));
        }
    }

private void button1_Click(object sender, System.EventArgs e)
{
    // For each screen, add the screen properties to a list box.
    foreach (var screen in System.Windows.Forms.Screen.AllScreens)
    {
        listBox1.Items.Add("Device Name: " + screen.DeviceName);
        listBox1.Items.Add("Bounds: " + 
            screen.Bounds.ToString());
        listBox1.Items.Add("Type: " + 
            screen.GetType().ToString());
        listBox1.Items.Add("Working Area: " + 
            screen.WorkingArea.ToString());
        listBox1.Items.Add("Primary Screen: " + 
            screen.Primary.ToString());
    }
}

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    ' For each screen, add the screen properties to a list box.
    For Each screen In System.Windows.Forms.Screen.AllScreens
        With ListBox1.Items
            .Add("Device Name: " + screen.DeviceName)
            .Add("Bounds: " + screen.Bounds.ToString())
            .Add("Type: " + screen.GetType().ToString())
            .Add("Working Area: " + screen.WorkingArea.ToString())
            .Add("Primary Screen: " + screen.Primary.ToString())
        End With
    Next
End Sub

注解

此对象的构造函数不是公共的，因此无法显式创建对象 Screen 。 调用其公共方法时会创建该对象。