@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: The GetUserObjectInformation API !!!!C# Signature: [DllImport("user32.dll", SetLastError=true)] static extern bool GetUserObjectInformation(IntPtr hObj, int nIndex, [Out] byte [] pvInfo, uint nLength, out uint lpnLengthNeeded); !!!!VB.NET Signature: <DllImport("user32.dll", SetLastError:=True)> _ Private Shared Function GetUserObjectInformation(ByVal hObj As IntPtr, ByVal nIndex As Int32, ByRef pvInfo As Byte(), <MarshalAs(UnmanagedType.I4)> ByVal nLength As Int32, <MarshalAs(UnmanagedType.I4)> ByRef lpnLengthNeeded As Int32) As Boolean End Function !!!!User-Defined Types: None. !!!!VB.NET Notes: This line is required at the top of the code module for the 'MarshalAs' attribute: Imports System.Runtime.InteropServices nIndex constant values: Private Const UOI_FLAGS = 1 Private Const UOI_NAME = 2 Private Const UOI_TYPE = 3 Private Const UOI_USER_SID = 4 !!!!C# Notes: nIndex constant values private const int UOI_FLAGS = 1; private const int UOI_NAME = 2; private const int UOI_TYPE = 3; private const int UOI_USER_SID = 4; private const int UOI_HEAPSIZE = 5; //Windows Server 2003 and Windows XP/2000: This value is not supported. private const int UOI_IO = 6; //Windows Server 2003 and Windows XP/2000: This value is not supported. !!!!Tips & Tricks: Please add some! !!!!Sample Code: [DllImport("user32.dll", SetLastError = true)] static extern bool GetUserObjectInformation(IntPtr hObj, int nIndex, out ulong pvInfo, uint nLength, out uint lpnLengthNeeded); private void Form1_Load(object sender, EventArgs e) { Desktop desktop = Desktop.GetCurrent(); //Desktop class from http://www.codeproject.com/KB/cs/csdesktopswitching.aspx IntPtr hdesk = desktop.DesktopHandle; ulong heapsize; uint lengthNeeded; if (GetUserObjectInformation(hdesk, UOI_HEAPSIZE, out heapsize, sizeof(ulong), out lengthNeeded)) { Text = "Heapsize:" + heapsize; } } !!!!Alternative Managed API: Do you know one? Please contribute it! Documentation: GetUserObjectInformation@msdn on MSDN
Edit user32.getuserobj...
You do not have permission to change this page. If you feel this is in error, please send feedback with the contact link on the main page.