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71 lines
3.0 KiB
71 lines
3.0 KiB
using System;
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using System.Collections;
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using System.Runtime.InteropServices;
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using System.IO;
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using System.Text;
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namespace Windows
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{
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class GuiConsole
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{
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public static void CreateConsole()
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{
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if (hasConsole)
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return;
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if (oldOut == IntPtr.Zero)
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oldOut = GetStdHandle( -11 );
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if (! AllocConsole())
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throw new Exception("AllocConsole() failed");
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conOut = CreateFile( "CONOUT$", 0x40000000, 2, IntPtr.Zero, 3, 0, IntPtr.Zero );
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if (! SetStdHandle(-11, conOut))
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throw new Exception("SetStdHandle() failed");
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StreamToConsole();
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hasConsole = true;
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}
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public static void ReleaseConsole()
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{
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if (! hasConsole)
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return;
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if (! CloseHandle(conOut))
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throw new Exception("CloseHandle() failed");
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conOut = IntPtr.Zero;
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if (! FreeConsole())
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throw new Exception("FreeConsole() failed");
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if (! SetStdHandle(-11, oldOut))
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throw new Exception("SetStdHandle() failed");
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StreamToConsole();
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hasConsole = false;
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}
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private static void StreamToConsole()
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{
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Stream cstm = Console.OpenStandardOutput();
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StreamWriter cstw = new StreamWriter( cstm, Encoding.Default );
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cstw.AutoFlush = true;
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Console.SetOut( cstw );
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Console.SetError( cstw );
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}
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private static bool hasConsole = false;
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private static IntPtr conOut;
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private static IntPtr oldOut;
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[DllImport("kernel32.dll", SetLastError=true)]
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private static extern bool AllocConsole();
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[DllImport("kernel32.dll", SetLastError=false)]
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private static extern bool FreeConsole();
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[DllImport("kernel32.dll", SetLastError=true)]
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private static extern IntPtr GetStdHandle( int nStdHandle );
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[DllImport("kernel32.dll", SetLastError=true)]
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private static extern bool SetStdHandle(int nStdHandle, IntPtr hConsoleOutput);
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[DllImport("kernel32.dll", CharSet=CharSet.Auto, SetLastError=true)]
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private static extern IntPtr CreateFile(
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string fileName,
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int desiredAccess,
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int shareMode,
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IntPtr securityAttributes,
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int creationDisposition,
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int flagsAndAttributes,
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IntPtr templateFile );
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[DllImport("kernel32.dll", ExactSpelling=true, SetLastError=true)]
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private static extern bool CloseHandle(IntPtr handle);
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}
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}
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