C# - 控制螢幕 Monitor Control
參考：Complete guide on How to turn a monitor on/off/standby
以下程式碼，透過 button1 控制項 Click 事件執行 SendMessage() 方法，通知 Monitor 操作【ON】、【OFF】、【StandBy】等動作。
要是在有多螢幕的情形，應該是通通關閉吧？我沒有多各螢幕可以測試，所以不能夠確定。
程式碼：
-
using System;
-
using System.Runtime.InteropServices; // to import Dll
-
using System.Windows.Forms;
-
namespace MonitorControl
-
{
-
public partial class Form1 : Form
-
{
-
public enum MonitorState : int
-
{
-
MONITOR_ON = -1,
-
MONITOR_OFF = 2,
-
MONITOR_STANBY = 1
-
} ;
-
public Form1( )
-
{
-
InitializeComponent( );
-
}
-
public int WM_SYSCOMMAND = 0x0112;
-
public int SC_MONITORPOWER = 0xF170;
-
[DllImport( "user32.dll" ) ]
-
private static extern int SendMessage( int hWnd, int hMsg, int wParam, int lParam);
-
private void button1_Click( object sender, EventArgs e)
-
{
-
SendMessage( this.Handle.ToInt32 ( ), WM_SYSCOMMAND, SC_MONITORPOWER, ( int ) MonitorState.MONITOR_OFF );
-
}
-
}
-
}
|