MiniDumpWriteDump (dbghelp)
Last changed: 98.213.119.236

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Summary
Writes user-mode minidump information to the specified file.

C# Signature:

[DllImport("Dbghelp.dll")]
static extern bool MiniDumpWriteDump(IntPtr hProcess, uint ProcessId, IntPtr hFile, int DumpType, ref MINIDUMP_EXCEPTION_INFORMATION ExceptionParam, IntPtr UserStreamParam, IntPtr CallbackParam);

VB Signature:

Declare Function MiniDumpWriteDump Lib "Dbghelp.dll" (TODO) As TODO

User-Defined Types:

MINIDUMP_EXCEPTION_INFORMATION

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

[DllImport("Dbghelp.dll")]

static extern bool MiniDumpWriteDump(IntPtr hProcess, uint ProcessId, IntPtr hFile, int DumpType, ref MINIDUMP_EXCEPTION_INFORMATION ExceptionParam,IntPtr UserStreamParam, IntPtr CallbackParam);

[DllImport("kernel32.dll")]

static extern IntPtr GetCurrentProcess();

[DllImport("kernel32.dll")]

static extern uint GetCurrentProcessId();

[DllImport("kernel32.dll")]

static extern uint GetCurrentThreadId();

[StructLayout(LayoutKind.Sequential, Pack = 4)]

public struct MINIDUMP_EXCEPTION_INFORMATION

{

    public uint ThreadId;
    public IntPtr ExceptionPointers;
    public int ClientPointers;

}

/// <summary>

/// Call back function that will be called when an exception has occured. This function will create

/// a fullmemory dump of the application

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)

{

    string assemblyPath = Assembly.GetEntryAssembly().Location;
    string dumpFileName = assemblyPath + "_" + DateTime.Now.ToString("dd.MM.yyyy.HH.mm.ss") + ".dmp";
    FileStream file = new FileStream(dumpFileName, FileMode.Create);
    MINIDUMP_EXCEPTION_INFORMATION info = new MINIDUMP_EXCEPTION_INFORMATION();
    info.ClientPointers = 1;
    info.ExceptionPointers = Marshal.GetExceptionPointers();
    info.ThreadId = GetCurrentThreadId();
    // A full memory dump is necessary in the case of a managed application, other wise no information
    // regarding the managed code will be available
    MiniDumpWriteDump( GetCurrentProcess(), GetCurrentProcessId(), file.SafeFileHandle.DangerousGetHandle(), MiniDumpWithFullMemory, ref info, IntPtr.Zero, IntPtr.Zero );
    file.Close();
    string exeName = Path.GetFileName(assemblyPath);
    MessageBox.Show( "An Unhanled exception has been detected in the application " + exeName + " .\r\nException information is saved in " + dumpFileName,
            "Error", MessageBoxButton.OK, MessageBoxImage.Error);

}

private static readonly int MiniDumpWithFullMemory = 2;

Documentation