@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: The EnumDisplayDevices API !!!!C# Signature: [DllImport("user32.dll")] static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum, ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags); !!!!VB.NET Signature: <DllImport("user32.dll", EntryPoint:="EnumDisplayDevices", CharSet:=CharSet.Auto, CallingConvention:=CallingConvention.StdCall)> _ Public Shared Function EnumDisplayDevices(ByVal lpDevice As String, ByVal iDevNum As UInteger, ByRef lpDisplayDevice As DISPLAY_DEVICE, ByVal dwFlags As UInteger) As Integer End Function !!!!User-Defined Types: None. !!!!Notes: [DISPLAY_DEVICE] !!!!Tips & Tricks: Please add some! !!!!Sample Code: DISPLAY_DEVICE d=new DISPLAY_DEVICE(); d.cb=Marshal.SizeOf(d); try { for (uint id=0; EnumDisplayDevices(null, id, ref d, 0); id++) { Console.WriteLine( String.Format("{0}, {1}, {2}, {3}, {4}, {5}", id, d.DeviceName, d.DeviceString, d.StateFlags, d.DeviceID, d.DeviceKey ) ); d.cb=Marshal.SizeOf(d); } } catch (Exception ex) { Console.WriteLine(String.Format("{0}",ex.ToString())); } !!!!Sample VB.NET Code: 'Tested with VisualStudio 2010, Windows 7 x64 Dim i, numberOfInterfaces as Integer Dim dispDev1 As New DISPLAY_DEVICE dispDev1.cb = Marshal.SizeOf(dispDev1) 'First we have to enumerate the adapters. i = 0 While (EnumDisplayDevices(vbNullString, i, dispDev1, &H0)) i += 1 End While numberOfInterfaces = i 'Once we know how many adapters there are, we'll loop and retrieve some data For i = 0 to numberOfInterfaces - 1 EnumDisplayDevices(vbNullString, i, dispDev1, &H0) TextBox1.AppendText("-=Adapter=-" & vbCrLf) TextBox1.AppendText("deviceName:" & dispDev1.DeviceName & vbCrLf) TextBox1.AppendText("deviceString:" & dispDev1.DeviceString & vbCrLf) TextBox1.AppendText("deviceFlags:" & dispDev1.StateFlags & vbCrLf) TextBox1.AppendText("-=Monitor=-" & vbCrLf) EnumDisplayDevices(dispDev1.DeviceName, 0, dispDev1, &H1) TextBox1.AppendText("deviceName:" & dispDev1.DeviceName & vbCrLf) TextBox1.AppendText("deviceString:" & dispDev1.DeviceString & vbCrLf) TextBox1.AppendText("deviceFlags:" & dispDev1.StateFlags & vbCrLf) TextBox1.AppendText("--" & vbCrLf) Next !!!!Alternative Managed API: None. Documentation: EnumDisplayDevices@msdn on MSDN
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