检测监视器是否在c上#

在Vista+中,有 WmiMonitorBasicDisplayParams 类,其中“Active”属性告诉您显示是否处于活动状态。

下面是一个对我有用的例子:

using System.Management;

// ...

var query = "select * from WmiMonitorBasicDisplayParams";
using(var wmiSearcher = new ManagementObjectSearcher("\\root\\wmi", query))
{
    var results = wmiSearcher.Get();
    foreach (ManagementObject wmiObj in results)
    {
        // get the "Active" property and cast to a boolean, which should 
        // tell us if the display is active. I've interpreted this to mean "on"
        var active = (Boolean)wmiObj["Active"];
    }
}

这无法完成:无法检查监视器是否已通电。您可以检查是否启用了辅助监视器:使用 System.Windows.Forms.Screen.AllScreens