Remove gsview from mupdf repo.

It has its own repo now. See http://git.ghostscript.com/?p=gsview.git

1 files changed, 0 insertions, 1178 deletions

diff --git a/platform/windows/gsview/ghostsharp.cs b/platform/windows/gsview/ghostsharp.cs
deleted file mode 100644
index 099239e9..00000000
--- a/platform/windows/gsview/ghostsharp.cs
+++ /dev/null
@@ -1,1178 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading;
-//using System.Threading.Tasks;
-using System.Runtime.InteropServices;
-using System.IO;
-using System.Security;
-using System.ComponentModel;
-
-namespace gsview
-{
-	/* Warning. This list is in a particular order. The devices before 
-	 * psdrgb do not support multiple pages.  Those including psdrgb do 
-	 * support multiple pages.  This is used in the conversion process.
-	 * Also note that mupdf devices go at the beginning of the list */
-	public enum gsDevice_t
-	{
-		svg, 
-		pnm,
-		pclbitmap,
-		pwg,
-		bmp16,  /* Add mupdf devices before this one */
-		bmp16m,
-		bmp256,
-		bmp32b,
-		bmpgray,
-		bmpmono,
-		eps2write,
-		jpeg,
-		jpegcmyk,
-		jpeggray,
-		pamcmyk32,
-		pamcmyk4,
-		pbm,
-		pgm,
-		png16,
-		png16m,
-		png256,
-		pngalpha,
-		pnggray,
-		pngmono,
-		psdcmyk,
-		psdrgb,  /* Add single page gs devices before this device */
-		pdfwrite,
-		ps2write,
-		pxlcolor,
-		pxlmono,
-		tiff12nc,
-		tiff24nc,
-		tiff32nc,
-		tiff64nc,
-		tiffcrle,
-		tiffg3,
-		tiffg32d,
-		tiffg4,
-		tiffgray,
-		tifflzw,
-		tiffpack,
-		tiffsep,
-		txtwrite,
-		xpswrite
-	};
-
-	public enum GS_Task_t
-	{
-		PS_DISTILL,
-		CREATE_XPS,
-		SAVE_RESULT
-	}
-
-	public enum GS_Result_t
-	{
-		gsOK,
-		gsFAILED,
-		gsCANCELLED
-	}
-
-	/* Parameters */
-	public struct gsParams_t
-	{
-		public String init_string;
-		public String init_file;
-		public int resolution;
-		public gsDevice_t device;
-		public String devicename;
-		public String outputfile;
-		public String inputfile;
-		public GS_Task_t task;
-		public GS_Result_t result;
-		public int num_pages;
-		public String options;
-		public bool need_multi_page;
-		public System.Collections.IList pages;
-		public int firstpage;
-		public int lastpage;
-		public int currpage; /* valid only when pages != null */
-	};
-
-	public class gsEventArgs : EventArgs
-	{
-		private bool m_completed;
-		private int m_progress;
-		private gsParams_t m_param;
-
-		public bool Completed
-		{
-			get { return m_completed; }
-		}
-
-		public gsParams_t Params
-		{
-			get { return m_param; }
-		}
-
-		public int Progress
-		{
-			get { return m_progress; }
-		}
-
-		public gsEventArgs(bool completed, int progress, gsParams_t param)
-		{
-			m_completed = completed;
-			m_progress = progress;
-			m_param = param;
-		}
-	}
-
-	/* from gs */
-	public struct gsapi_revision_t 
-	{
-		public IntPtr product;
-		public IntPtr copyright;
-		public int revision;
-		public int revisiondate;
-	}
-
-	public enum gsEncoding {
-		GS_ARG_ENCODING_LOCAL = 0,
-		GS_ARG_ENCODING_UTF8 = 1,
-		GS_ARG_ENCODING_UTF16LE = 2
-	};
-
-	public enum gsStatus
-	{
-		GS_READY,
-		GS_BUSY,
-		GS_ERROR
-	};
-
-	static class gsConstants
-	{
-		public const int E_QUIT = -101;
-		public const int GS_READ_BUFFER = 32768;
-	}
-
-	[SuppressUnmanagedCodeSecurity]
-	class ghostsharp
-	{
-		/* Callback proto for stdio */
-		public delegate int gsStdIOHandler(IntPtr caller_handle, IntPtr buffer, 
-			int len);
-
-		#region DLLInterface
-		/* Ghostscript API */
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_revision", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_revision64(ref gsapi_revision_t vers, int size);
-
-		[DllImport("gsdll64.dll", EntryPoint="gsapi_new_instance", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_new_instance64(out IntPtr pinstance, 
-			IntPtr caller_handle);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_delete_instance", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_delete_instance64(IntPtr instance);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_init_with_args", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_init_with_args64(IntPtr instance, int argc, 
-			IntPtr argv);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_exit", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_exit64(IntPtr instance);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_set_arg_encoding", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_set_arg_encoding64(IntPtr instance, 
-			int encoding);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_set_stdio", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_set_stdio64(IntPtr instance,
-			gsStdIOHandler stdin, gsStdIOHandler stdout, gsStdIOHandler stderr);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_run_string_begin", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_run_string_begin64(IntPtr instance,
-			int usererr, ref int exitcode);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_run_string_continue", CharSet = CharSet.Ansi,
-		CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_run_string_continue64(IntPtr instance, 
-			IntPtr command, int count, int usererr, ref int exitcode);
-
-		[DllImport("gsdll64.dll", EntryPoint = "gsapi_run_string_end", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_run_string_end64(IntPtr instance,
-			int usererr, ref int exitcode);
-
-		/* 32 Bit DLL */
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_revision", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_revision32(ref gsapi_revision_t vers, int size);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_new_instance", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_new_instance32(out IntPtr pinstance,
-			IntPtr caller_handle);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_delete_instance", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_delete_instance32(IntPtr instance);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_init_with_args", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_init_with_args32(IntPtr instance, int argc,
-			IntPtr argv);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_exit", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_exit32(IntPtr instance);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_set_arg_encoding", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_set_arg_encoding32(IntPtr instance,
-			int encoding);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_set_stdio", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern int gsapi_set_stdio32(IntPtr instance,
-		gsStdIOHandler stdin, gsStdIOHandler stdout, gsStdIOHandler stderr);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_run_string_begin", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_run_string_begin32(IntPtr instance,
-			int usererr, ref int exitcode);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_run_string_continue", CharSet = CharSet.Ansi,
-		CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_run_string_continue32(IntPtr instance,
-			IntPtr command, int count, int usererr, ref int exitcode);
-
-		[DllImport("gsdll32.dll", EntryPoint = "gsapi_run_string_end", CharSet = CharSet.Ansi,
-			CallingConvention = CallingConvention.StdCall)]
-		private static extern void gsapi_run_string_end32(IntPtr instance,
-			int usererr, ref int exitcode);
-		#endregion DLLInterface
-
-		#region DLLErrorCatch
-		/* In case the DLL is not found we need to wrap the methods up with
-		 * a try/catch.  Also select 32 or 64 bit DLL at this time.  This 
-		 * C# code is compiled as ANYCPU type */
-		private int tc_gsapi_revision(ref gsapi_revision_t vers, int size)
-		{
-			int code = 0;
-			try
-			{
-				if (is64bit)
-					code = gsapi_revision64(ref vers, size);
-				else
-					code = gsapi_revision32(ref vers, size);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return code;
-		}
-
-		private int tc_gsapi_new_instance(out IntPtr pinstance, IntPtr caller_handle)
-		{
-			int code = 0;
-			pinstance = IntPtr.Zero;
-			try
-			{
-				if (is64bit)
-					code = gsapi_new_instance64(out pinstance, caller_handle);
-				else
-					code = gsapi_new_instance32(out pinstance, caller_handle);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return code;
-		}
-
-		private int tc_gsapi_delete_instance(IntPtr instance)
-		{
-			try
-			{
-				if (is64bit)
-					gsapi_delete_instance64(instance);
-				else
-					gsapi_delete_instance32(instance);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return 0;
-		}
-
-		private int tc_gsapi_init_with_args(IntPtr instance, int argc, IntPtr argv)
-		{
-			int code;
-
-			try
-			{
-				if (is64bit)
-					code = gsapi_init_with_args64(instance, argc, argv);
-				else
-					code = gsapi_init_with_args32(instance, argc, argv);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch(System.Reflection.TargetInvocationException ee)
-			{
-				String output = "TargetInvocationException";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-
-			return code;
-		}
-
-		private int tc_gsapi_exit(IntPtr instance)
-		{
-			int code;
-			try
-			{
-				if (is64bit)
-					code = gsapi_exit64(instance);
-				else
-					code = gsapi_exit32(instance);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return code;
-		}
-
-		private int tc_gsapi_set_arg_encoding(IntPtr instance, int encoding)
-		{
-			int code;
-			try
-			{
-				if (is64bit)
-					code = gsapi_set_arg_encoding64(instance, encoding);
-				else
-					code = gsapi_set_arg_encoding32(instance, encoding);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return code;
-		}
-
-		private int tc_gsapi_set_stdio(IntPtr instance, gsStdIOHandler stdin, 
-			gsStdIOHandler stdout, gsStdIOHandler stderr)
-		{
-			int code;
-			try
-			{
-				if (is64bit)
-					code = gsapi_set_stdio64(instance, stdin, stdout, stderr);
-				else
-					code = gsapi_set_stdio32(instance, stdin, stdout, stderr);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return code;
-		}
-
-		private int tc_gsapi_run_string_begin(IntPtr instance, int usererr, 
-			ref int exitcode)
-		{
-			try
-			{
-				if (is64bit)
-					gsapi_run_string_begin64(instance, usererr, ref exitcode);
-				else
-					gsapi_run_string_begin32(instance, usererr, ref exitcode);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return 0;
-		}
-
-		private int tc_gsapi_run_string_continue(IntPtr instance, IntPtr command, 
-			int count, int usererr, ref int exitcode)
-		{
-			try
-			{
-				if (is64bit)
-					gsapi_run_string_continue64(instance, command, count, usererr,
-						ref exitcode);
-				else
-					gsapi_run_string_continue32(instance, command, count, usererr,
-						ref exitcode);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return 0;
-		}
-
-		private int tc_gsapi_run_string_end(IntPtr instance, int usererr, 
-			ref int exitcode)
-		{
-			try
-			{
-				if (is64bit)
-					gsapi_run_string_end64(instance, usererr, ref exitcode);
-				else
-					gsapi_run_string_end32(instance, usererr, ref exitcode);
-			}
-			catch (DllNotFoundException)
-			{
-				/* DLL not found */
-				String output = "DllNotFoundException: Ghostscript DLL not found";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			catch (BadImageFormatException)
-			{
-				/* Using 32 bit with 64 or vice versa */
-				String output = "BadImageFormatException: Incorrect Ghostscript DLL";
-				gsDLLProblemMain(this, output);
-				return -1;
-			}
-			return 0;
-		}
-		#endregion DLLErrorCatch
-
-		private int StdInCallback(IntPtr handle, IntPtr pointer, int count)
-		{
-			String output = Marshal.PtrToStringAnsi(pointer);
-			return count;
-		}
-
-		private int StdOutCallback(IntPtr handle, IntPtr pointer, int count)
-		{
-			String output = Marshal.PtrToStringAnsi(pointer);
-			gsIOUpdateMain(this, output, count);
-			if (m_params.task != GS_Task_t.PS_DISTILL)
-			{
-				/* See if we have a page number */
-				if (count >= 7 && output.Substring(0, 4) == "Page")
-				{
-					String page = output.Substring(5, count - 6);
-					int numVal;
-					try
-					{
-						double perc = 0.0;
-						numVal = System.Convert.ToInt32(page);
-						if (m_params.firstpage == -1 && m_params.lastpage == -1 &&
-							m_params.pages == null)
-						{
-							/* Doing full document */
-							perc = 100.0 * (double)numVal / (double)m_params.num_pages;
-						}
-						else
-						{
-							if (m_params.pages != null)
-							{
-								perc = 100.0 * ((double)numVal - m_params.currpage) / (double)m_params.num_pages;
-								m_params.currpage = m_params.currpage + 1;
-							}
-							else
-							{
-								/* continugous set of pages */
-								perc = 100.0 * ((double)numVal - m_params.firstpage + 1) / (double)m_params.num_pages;
-							}
-						}
-						m_worker.ReportProgress((int)perc);
-					}
-					catch (FormatException e)
-					{
-						Console.WriteLine("XPSPrint Error: Input string is not a sequence of digits.");
-					}
-					catch (OverflowException e)
-					{
-						Console.WriteLine("XPSPrint Error: The number cannot fit in an Int32.");
-					}
-					
-				}
-			}
-			return count;
-		}
-
-		private int StdErrCallback(IntPtr handle, IntPtr pointer, int count)
-		{
-			String output = Marshal.PtrToStringAnsi(pointer);
-			gsIOUpdateMain(this, output, count);
-			return count;
-		}
-
-		IntPtr gsInstance;
-		BackgroundWorker m_worker;
-		bool is64bit;
-		gsParams_t m_params;
-		/* Callbacks to Main */
-		internal delegate void gsDLLProblem(object gsObject, String mess);
-		internal event gsDLLProblem gsDLLProblemMain;
-		internal delegate void gsIOCallBackMain(object gsObject, String mess, int len);
-		internal event gsIOCallBackMain gsIOUpdateMain;
-		internal delegate void gsCallBackMain(object gsObject, gsEventArgs info);
-		internal event gsCallBackMain gsUpdateMain;
-		/* These need to be declared as members, to keep a reference and avoid GC
-		 * You do not pin delegates */
-		gsStdIOHandler RaiseStdInCallback;
-		gsStdIOHandler RaiseStdOutCallback;
-		gsStdIOHandler RaiseStdErrCallback;
-
-		public ghostsharp()
-		{
-			/* Determine now if we are 64 or 32 bit */
-			is64bit = Environment.Is64BitOperatingSystem &&
-				Environment.Is64BitProcess;
-			m_worker = null;
-			gsInstance = IntPtr.Zero;
-
-			/* Go ahead and do the assignment here */
-			RaiseStdInCallback = StdInCallback;
-			RaiseStdOutCallback = StdOutCallback;
-			RaiseStdErrCallback = StdErrCallback;
-		}
-
-		private List<String> GetOptions(String options)
-		{
-			List<String> optionlist = new List<String>();
-
-			if (options != "")
-			{
-				string[] words = options.Split(' ');
-				for (int k = 0; k < words.Length; k++)
-				{
-					if (words[k].Length > 0)
-					{
-						optionlist.Add(words[k]);
-					}
-				}
-			}
-			return optionlist;
-		}
-
-		/* A standard command line approach to using gs API */
-		private void gsWork1(object sender, DoWorkEventArgs e)
-		{
-			gsParams_t gsparams = (gsParams_t) e.Argument;
-			String out_file = gsparams.outputfile;
-			String in_file = gsparams.inputfile;
-			int num_params = 8;  /* base number */
-			int rend_count = 1;
-			String options;
-			int count;
-			List<String> optionlist;
-
-			optionlist = GetOptions(gsparams.options);
-			num_params = num_params + optionlist.Count;
-			if (gsparams.pages != null)
-			{
-				rend_count = gsparams.pages.Count;
-				num_params = num_params + 2;
-			}
-			if (gsparams.init_file != null)
-				num_params = num_params + 1;
-			if (gsparams.init_string != null)
-				num_params = num_params + 2;
-
-			var argParam = new GCHandle[num_params];
-			var argPtrs = new IntPtr[num_params];
-			String[] strParams = new String[num_params];
-			List<byte[]> CharacterArray = new List<byte[]>(num_params);
-			GCHandle argPtrsStable;
-
-			/* New instance */
-			int code = tc_gsapi_new_instance(out gsInstance, IntPtr.Zero);
-			if (code < 0)
-			{
-				gsparams.result = GS_Result_t.gsFAILED;
-				e.Result = gsparams;
-				return;
-			}
-
-			code = tc_gsapi_set_stdio(gsInstance, RaiseStdInCallback, 
-				RaiseStdOutCallback, RaiseStdErrCallback);
-			code = tc_gsapi_set_arg_encoding(gsInstance, (int)gsEncoding.GS_ARG_ENCODING_UTF8);
-
-			if (code == 0)
-			{
-				for (int jj = 0; jj < rend_count; jj++)
-				{
-					strParams[0] = "gs";   /* This does not matter */
-					strParams[1] = "-dNOPAUSE";
-					strParams[2] = "-dBATCH";
-					if (gsparams.devicename != null)
-					{
-						strParams[3] = "-sDEVICE=" + gsparams.devicename;
-					}
-					else
-					{
-						strParams[3] = "-sDEVICE=" + Enum.GetName(typeof(gsDevice_t), gsparams.device);
-					}
-					strParams[4] = "-r" + gsparams.resolution;
-					/* Create temp file if file not specified */
-					if (out_file == null)
-					{
-						out_file = Path.GetTempFileName();
-						gsparams.outputfile = out_file;
-					}
-					count = 5;
-					/* Add in the options */
-					for (int kk = 0; kk < optionlist.Count; kk++)
-					{
-						strParams[count] = optionlist[kk];
-						count++;
-					}
-					/* We have discontinuous page selection */
-					if (gsparams.pages != null)
-					{
-						String firstpage, lastpage;
-						options = gsparams.options;
-						SelectPage curr_page = (SelectPage)(gsparams.pages[jj]);
-						firstpage = "-dFirstPage=" + curr_page.Page;
-						lastpage =  "-dLastPage=" + curr_page.Page;
-						strParams[count] = firstpage;
-						count++;
-						strParams[count] = lastpage;
-						count++;
-						/* Look for file extension. */
-						string extension = System.IO.Path.GetExtension(out_file);
-						int len = extension.Length;
-						String new_out_file = out_file.Substring(0, out_file.Length - len);
-						strParams[count] = "-o" + new_out_file + "_page" + curr_page.Page + extension;
-					}
-					else
-					{
-						if (gsparams.need_multi_page)
-						{
-							/* Look for file extension. */
-							string extension = System.IO.Path.GetExtension(out_file);
-							int len = extension.Length;
-							String new_out_file = out_file.Substring(0, out_file.Length - len);
-							strParams[count] = "-o" + new_out_file + "_page%d" + extension;
-						}
-						else
-							strParams[count] = "-o" + out_file;
-					}
-					if (gsparams.init_string != null)
-					{
-						count++;
-						strParams[count] = "-c";
-						count++;
-						strParams[count] = gsparams.init_string;
-					}
-					count++;
-					strParams[count] = "-f";
-					if (gsparams.init_file != null)
-					{
-						count++;
-						strParams[count] = gsparams.init_file;
-					}
-					count++;
-					strParams[count] = in_file;
-
-					/* Now convert our Strings to char* and get pinned handles to these.
-					 * This keeps the c# GC from moving stuff around on us */
-					for (int k = 0; k < num_params; k++)
-					{
-						CharacterArray.Add(System.Text.Encoding.UTF8.GetBytes(strParams[k].ToCharArray()));
-						argParam[k] = GCHandle.Alloc(CharacterArray[k], GCHandleType.Pinned);
-						argPtrs[k] = argParam[k].AddrOfPinnedObject();
-					}
-					/* Also stick the array of pointers into memory that will not be GCd */
-					argPtrsStable = GCHandle.Alloc(argPtrs, GCHandleType.Pinned);
-
-					code = tc_gsapi_init_with_args(gsInstance, num_params, argPtrsStable.AddrOfPinnedObject());
-					/* All the pinned items need to be freed so the GC can do its job */
-					for (int k = 0; k < num_params; k++)
-					{
-						argParam[k].Free();
-					}
-					argPtrsStable.Free();
-					/* Free the character array list in case we have multiple runs */
-					CharacterArray.Clear();
-
-					if (code < 0)
-						break;
-				}
-			}
-
-			int code1 = tc_gsapi_exit(gsInstance);
-			if ((code == 0) || (code == gsConstants.E_QUIT))
-				code = code1;
-
-			tc_gsapi_delete_instance(gsInstance);
-			if ((code == 0) || (code == gsConstants.E_QUIT))
-			{
-				gsparams.result = GS_Result_t.gsOK;
-				e.Result = gsparams;
-				return;
-			}
-
-			gsparams.result = GS_Result_t.gsFAILED;
-			e.Result = gsparams;
-			return;
-		}
-
-		/* Feeding gs piecemeal so that we can have some progress callback */
-		/* Used only for PS Distill */
-		private void gsWork2(object sender, DoWorkEventArgs e)
-		{
-			gsParams_t Params = (gsParams_t)e.Argument;
-			String out_file = Params.outputfile;
-			String in_file = Params.inputfile;
-			int num_params = 6;
-			if (Params.options.Length > 0)
-				num_params = num_params + 1;
-
-			int exitcode = 0;
-			var argParam = new GCHandle[num_params];
-			var argPtrs = new IntPtr[num_params];
-			var Feed = new GCHandle();
-			var FeedPtr = new IntPtr();
-			String[] strParams = new String[num_params];
-			List<byte[]> CharacterArray = new List<byte[]>(num_params);
-			GCHandle argPtrsStable;
-			Byte[] Buffer = new Byte[gsConstants.GS_READ_BUFFER];
-			BackgroundWorker worker = sender as BackgroundWorker;
-
-			/* Open the file */
-			var fs = new FileStream(in_file, FileMode.Open);
-			var len = (int) fs.Length;
-			/* New instance */
-			int code = tc_gsapi_new_instance(out gsInstance, IntPtr.Zero);
-			if (code < 0)
-			{
-				Params.result = GS_Result_t.gsFAILED;
-				e.Result = Params;
-				return;
-			}
-
-			code = tc_gsapi_set_stdio(gsInstance, RaiseStdInCallback, 
-				RaiseStdOutCallback, RaiseStdErrCallback);
-			code = tc_gsapi_set_arg_encoding(gsInstance, (int)gsEncoding.GS_ARG_ENCODING_UTF8);
-
-			if (code == 0)
-			{
-				strParams[0] = "gs";   /* This does not matter */
-				strParams[1] = "-dNOPAUSE";
-				strParams[2] = "-dBATCH";
-				if (Params.devicename != null)
-				{
-					strParams[3] = "-sDEVICE=" + Params.devicename;
-				}
-				else
-				{
-					strParams[3] = "-sDEVICE=" + Enum.GetName(typeof(gsDevice_t), Params.device);
-				}
-				strParams[4] = "-r" + Params.resolution;
-				/* Create temp file if file not specified */
-				if (out_file == null)
-				{
-					out_file = Path.GetTempFileName();
-					Params.outputfile = out_file;
-				}
-				if (Params.options.Length > 0)
-				{
-					strParams[5] = Params.options;
-					strParams[6] = "-o" + out_file;
-				} else 
-					strParams[5] = "-o" + out_file;
-
-				/* Now convert our Strings to char* and get pinned handles to these.
-					* This keeps the c# GC from moving stuff around on us */
-				for (int k = 0; k < num_params; k++)
-				{
-					CharacterArray.Add(System.Text.Encoding.UTF8.GetBytes(strParams[k].ToCharArray()));
-					argParam[k] = GCHandle.Alloc(CharacterArray[k], GCHandleType.Pinned);
-					argPtrs[k] = argParam[k].AddrOfPinnedObject();
-				}
-				/* Also stick the array of pointers into memory that will not be GCd */
-				argPtrsStable = GCHandle.Alloc(argPtrs, GCHandleType.Pinned);
-
-				code = tc_gsapi_init_with_args(gsInstance, num_params, argPtrsStable.AddrOfPinnedObject());
-
-				/* First pin the data buffer */
-				Feed = GCHandle.Alloc(Buffer, GCHandleType.Pinned);
-				FeedPtr = Feed.AddrOfPinnedObject();
-
-				/* Now start feeding the input piece meal and do a call back
-					* with our progress */
-				if (code == 0)
-				{
-					int count;
-					double perc;
-					int total = 0;
-
-					tc_gsapi_run_string_begin(gsInstance, 0, ref exitcode);
-					while ((count = fs.Read(Buffer, 0, gsConstants.GS_READ_BUFFER)) > 0)
-					{
-						tc_gsapi_run_string_continue(gsInstance, FeedPtr, count, 0, ref exitcode);
-						if (exitcode < 0)
-						{
-							code = exitcode;
-							break;
-						}
-						total =  total + count;
-						perc = 100.0 * (double) total / (double) len;
-						worker.ReportProgress((int)perc);
-						if (worker.CancellationPending == true)
-						{
-							e.Cancel = true;
-							break;
-						}
-					}
-					tc_gsapi_run_string_end(gsInstance, 0, ref exitcode);
-					if (code == 0)
-						code = exitcode;
-				}
-
-				/* All the pinned items need to be freed so the GC can do its job */
-				for (int k = 0; k < num_params; k++)
-				{
-					argParam[k].Free();
-				}
-				argPtrsStable.Free();
-				Feed.Free();
-			}
-
-			int code1 = tc_gsapi_exit(gsInstance);
-			if ((code == 0) || (code == gsConstants.E_QUIT))
-				code = code1;
-
-			tc_gsapi_delete_instance(gsInstance);
-			if ((code == 0) || (code == gsConstants.E_QUIT))
-			{
-				Params.result = GS_Result_t.gsOK;
-				e.Result = Params;
-				return;
-			}
-			Params.result = GS_Result_t.gsFAILED;
-			e.Result = Params;
-			return;
-		}
-
-		/* Callback */
-		private void gsCompleted(object sender, RunWorkerCompletedEventArgs e)
-		{
-			gsParams_t Value;
-			gsEventArgs info;
-			gsParams_t Params;
-
-			try
-			{
-				Params = (gsParams_t)e.Result;
-			}
-			catch(System.Reflection.TargetInvocationException ee)
-			{
-				/* Something went VERY wrong with GS */
-				/* Following is to help debug these issues */
-				/* var inner = ee.InnerException;
-				var message = ee.Message;
-				var inner_message = inner.Message;
-				String bound = "\n************\n";
-				gsIOUpdateMain(this, bound, bound.Length);
-				gsIOUpdateMain(this, message, message.Length);
-				gsIOUpdateMain(this, bound, bound.Length);
-				gsIOUpdateMain(this, inner_message, inner_message.Length);
-				gsIOUpdateMain(this, bound, bound.Length);
-				var temp = inner.Source;
-				gsIOUpdateMain(this, bound, bound.Length);
-				gsIOUpdateMain(this, temp, temp.Length);
-				var method = inner.TargetSite;
-				gsIOUpdateMain(this, bound, bound.Length);
-				var method_name = method.Name;
-				gsIOUpdateMain(this, method_name, method_name.Length);
-				var stack = inner.StackTrace;
-				gsIOUpdateMain(this, bound, bound.Length);
-				gsIOUpdateMain(this, stack, stack.Length); */
-				String output = "Ghostscript DLL Invalid Access.";
-				gsDLLProblemMain(this, output);
-				return;
-			}
-			
-			if (Params.task == GS_Task_t.PS_DISTILL)
-				m_worker.DoWork -= new DoWorkEventHandler(gsWork2);
-			else
-				m_worker.DoWork -= new DoWorkEventHandler(gsWork1);
-
-			if (e.Cancelled)
-			{
-				Value = new gsParams_t();
-				Value.result = GS_Result_t.gsCANCELLED;
-				info = new gsEventArgs(true, 100, Value);
-			} 
-			else
-			{
-				Value = (gsParams_t)e.Result;
-				info = new gsEventArgs(true, 100, Value);
-			}
-			gsUpdateMain(this, info);
-		}
-
-		private void gsProgressChanged(object sender, ProgressChangedEventArgs e)
-		{
-			/* Callback with progress */
-			gsParams_t Value = new gsParams_t();
-			gsEventArgs info = new gsEventArgs(false, e.ProgressPercentage, Value);
-			gsUpdateMain(this, info);
-		}
-
-		public gsStatus DistillPS(String fileName, int resolution)
-		{
-			gsParams_t gsparams = new gsParams_t(); ;
-
-			gsparams.init_file = null;
-			gsparams.init_string = null;
-			gsparams.device = gsDevice_t.pdfwrite;
-			gsparams.devicename = null;
-			gsparams.outputfile = null;
-			gsparams.resolution = resolution;
-			gsparams.inputfile = fileName;
-			gsparams.num_pages = -1;
-			gsparams.task = GS_Task_t.PS_DISTILL;
-			gsparams.options = "";
-			gsparams.need_multi_page = false;
-			gsparams.pages = null;
-			gsparams.firstpage = -1;
-			gsparams.lastpage = -1;
-			gsparams.currpage = -1;
-			return RunGhostscript(gsparams);
-		}
-
-		public gsStatus CreateXPS(String fileName, int resolution, int num_pages,
-								PrintControl printsettings)
-		{
-			gsParams_t gsparams = new gsParams_t();
-			gsparams.init_file = null;
-			gsparams.init_string = null;
-			gsparams.device = gsDevice_t.xpswrite;
-			gsparams.outputfile = null;
-			gsparams.resolution = resolution;
-			gsparams.inputfile = fileName;
-			gsparams.task = GS_Task_t.CREATE_XPS;
-			gsparams.num_pages = num_pages;
-			gsparams.options = "-dNOCACHE";
-			gsparams.need_multi_page = false;
-			gsparams.pages = null;
-			gsparams.firstpage = -1;
-			gsparams.lastpage = -1;
-			gsparams.currpage = -1;
-
-			if (printsettings != null)
-			{
-				double paperheight = printsettings.m_pagedetails.PaperSize.Height;
-				double paperwidth = printsettings.m_pagedetails.PaperSize.Width;
-				double width = paperwidth * 72.0 / 100.0;
-				double height = paperheight * 72.0 / 100.0;
-				String temp = " -dDEVICEWIDTHPOINTS=" + width + " -dDEVICEHEIGHTPOINTS=" + height + " -dFIXEDMEDIA";
-				/* Scale and translate and rotate if needed */
-				if (printsettings.xaml_autofit.IsChecked == true)
-					temp = temp + " -dFitPage";
-				gsparams.options = gsparams.options + temp;
-			}
-			return RunGhostscript(gsparams);
-		}
-
-		public gsStatus Convert(String fileName, String options, String device, 
-								String outputFile, int num_pages, int resolution,
-								bool multi_page_needed, System.Collections.IList pages, 
-								int firstpage, int lastpage, String init_file, String init_string)
-		{
-			gsParams_t gsparams = new gsParams_t();
-
-			gsparams.init_file = init_file;
-			gsparams.init_string = init_string;
-			gsparams.devicename = device;
-			gsparams.outputfile = outputFile;
-			gsparams.inputfile = fileName;
-			gsparams.task = GS_Task_t.SAVE_RESULT;
-			gsparams.num_pages = num_pages;
-			gsparams.options = options;
-			gsparams.resolution = resolution;
-			gsparams.need_multi_page = multi_page_needed;
-			gsparams.pages = pages;
-			gsparams.firstpage = firstpage;
-			gsparams.lastpage = lastpage;
-			gsparams.currpage = 1;
-			return RunGhostscript(gsparams);
-		}
-
-		public gsStatus GetStatus()
-		{
-			if (m_worker != null && m_worker.IsBusy)
-				return gsStatus.GS_BUSY;
-			else
-				return gsStatus.GS_READY;
-		}
-
-		public String GetVersion()
-		{
-			gsapi_revision_t vers;
-			vers.copyright = IntPtr.Zero;
-			vers.product = IntPtr.Zero;
-			vers.revision = 0;
-			vers.revisiondate = 0;
-			int size = System.Runtime.InteropServices.Marshal.SizeOf(vers);
-
-			if (tc_gsapi_revision(ref vers, size) == 0)
-			{
-				String product = Marshal.PtrToStringAnsi(vers.product);
-				String output;
-				int major = vers.revision / 100;
-				int minor = vers.revision - major * 100;
-				String versnum = major + "." + minor;
-				output = product + " " + versnum;
-				return output;
-			}
-			else
-				return null;
-		}
-
-		private gsStatus RunGhostscript(gsParams_t Params)
-		{
-			try
-			{
-				if (m_worker != null && m_worker.IsBusy)
-				{
-					m_worker.CancelAsync();
-					return gsStatus.GS_BUSY;
-				}
-				if (m_worker == null)
-				{
-					m_worker = new BackgroundWorker();
-					m_worker.WorkerReportsProgress = true;
-					m_worker.WorkerSupportsCancellation = true;
-					m_worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(gsCompleted);
-					m_worker.ProgressChanged += new ProgressChangedEventHandler(gsProgressChanged);
-				}
-
-				if (Params.task == GS_Task_t.PS_DISTILL)
-					m_worker.DoWork += new DoWorkEventHandler(gsWork2);
-				else
-					m_worker.DoWork += new DoWorkEventHandler(gsWork1);
-
-				m_params = Params;
-				m_worker.RunWorkerAsync(Params);
-				return gsStatus.GS_READY;
-			}
-			catch (OutOfMemoryException e)
-			{
-				Console.WriteLine("Memory allocation failed during gs rendering\n");
-				return gsStatus.GS_ERROR;
-			}
-		}
-
-		public void Cancel()
-		{
-			m_worker.CancelAsync();
-		}
-	}
-}