csharp: Cyotek.GhostScript.Pdf Conversion pdf convert image x64

NativeMethods.cs  x64

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using System; using System.Runtime.InteropServices;   namespace Cyotek.GhostScript {      /// <summary>     /// 64位     ///  https://github.com/kelter-antunes/Cyotek.GhostScript.x64 64位     /// </summary>   internal class NativeMethods   {   #region  Public Class Methods         // void gsapi_delete_instance (void *instance);     [DllImport("gsdll64.dll", EntryPoint = "gsapi_delete_instance")]     public static extern void gsapi_delete_instance(IntPtr instance);       // int gsapi_exit (void *instance);     [DllImport("gsdll64.dll", EntryPoint = "gsapi_exit")]     public static extern int gsapi_exit(IntPtr instance);       // int gsapi_set_poll (void *instance, int(*poll_fn)(void *caller_handle));     // int gsapi_set_display_callback (void *instance, display_callback *callback);     // int gsapi_init_with_args (void *instance, int argc, char **argv);     [DllImport("gsdll64.dll", EntryPoint = "gsapi_init_with_args")]     public static extern int gsapi_init_with_args(IntPtr instance, int argc, IntPtr argv);       //int gsapi_new_instance (void **pinstance, void *caller_handle);     [DllImport("gsdll64.dll", EntryPoint = "gsapi_new_instance")]     public static extern int gsapi_new_instance(out IntPtr pinstance, IntPtr caller_handle);       // int gsapi_revision (gsapi_revision_t *pr, int len);     [DllImport("gsdll64.dll", EntryPoint = "gsapi_revision")]     public static extern int gsapi_revision(out NativeStructs.GS_Revision pr, int len);       // int gsapi_run_string_begin (void *instance, int user_errors, int *pexit_code);     // int gsapi_run_string_continue (void *instance, const char *str, unsigned int length, int user_errors, int *pexit_code);     // int gsapi_run_string_end (void *instance, int user_errors, int *pexit_code);     // int gsapi_run_string_with_length (void *instance, const char *str, unsigned int length, int user_errors, int *pexit_code);     // int gsapi_run_string (void *instance, const char *str, int user_errors, int *pexit_code);     // int gsapi_run_file (void *instance, const char *file_name, int user_errors, int *pexit_code);     [DllImport("gsdll64.dll", EntryPoint = "gsapi_run_file")]     public static extern int gsapi_run_file(IntPtr instance, string file_name, int user_errors, int pexit_code);       //int gsapi_set_stdio (void *instance, int(*stdin_fn)(void *caller_handle, char *buf, int len), int(*stdout_fn)(void *caller_handle, const char *str, int len), int(*stderr_fn)(void *caller_handle, const char *str, int len));     [DllImport("gsdll64.dll", EntryPoint = "gsapi_set_stdio")]     public static extern int gsapi_set_stdio(IntPtr instance, StdioCallBack stdin_fn, StdioCallBack stdout_fn, StdioCallBack stderr_fn);     #endregion  Public Class Methods         // int gsapi_set_visual_tracer (gstruct vd_trace_interface_s *I);   } }

　　

 

NativeMethods.cs  x32

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using System; using System.Runtime.InteropServices;   namespace Cyotek.GhostScript {         /// <summary>     /// 32位     ///  https://github.com/kelter-antunes/Cyotek.GhostScript.x64 64位     /// </summary>   internal class NativeMethods   {       #region  Public Class Methods         // void gsapi_delete_instance (void *instance);     [DllImport("gsdll32.dll", EntryPoint = "gsapi_delete_instance")]     public static extern void gsapi_delete_instance(IntPtr instance);       // int gsapi_exit (void *instance);     [DllImport("gsdll32.dll", EntryPoint = "gsapi_exit")]     public static extern int gsapi_exit(IntPtr instance);       // int gsapi_set_poll (void *instance, int(*poll_fn)(void *caller_handle));     // int gsapi_set_display_callback (void *instance, display_callback *callback);     // int gsapi_init_with_args (void *instance, int argc, char **argv);     [DllImport("gsdll32.dll", EntryPoint = "gsapi_init_with_args")]     public static extern int gsapi_init_with_args(IntPtr instance, int argc, IntPtr argv);       //int gsapi_new_instance (void **pinstance, void *caller_handle);     [DllImport("gsdll32.dll", EntryPoint = "gsapi_new_instance")]     public static extern int gsapi_new_instance(out IntPtr pinstance, IntPtr caller_handle);       // int gsapi_revision (gsapi_revision_t *pr, int len);     [DllImport("gsdll32.dll", EntryPoint = "gsapi_revision")]     public static extern int gsapi_revision(out NativeStructs.GS_Revision pr, int len);       // int gsapi_run_string_begin (void *instance, int user_errors, int *pexit_code);     // int gsapi_run_string_continue (void *instance, const char *str, unsigned int length, int user_errors, int *pexit_code);     // int gsapi_run_string_end (void *instance, int user_errors, int *pexit_code);     // int gsapi_run_string_with_length (void *instance, const char *str, unsigned int length, int user_errors, int *pexit_code);     // int gsapi_run_string (void *instance, const char *str, int user_errors, int *pexit_code);     // int gsapi_run_file (void *instance, const char *file_name, int user_errors, int *pexit_code);     [DllImport("gsdll32.dll", EntryPoint = "gsapi_run_file")]     public static extern int gsapi_run_file(IntPtr instance, string file_name, int user_errors, int pexit_code);       //int gsapi_set_stdio (void *instance, int(*stdin_fn)(void *caller_handle, char *buf, int len), int(*stdout_fn)(void *caller_handle, const char *str, int len), int(*stderr_fn)(void *caller_handle, const char *str, int len));     [DllImport("gsdll32.dll", EntryPoint = "gsapi_set_stdio")]     public static extern int gsapi_set_stdio(IntPtr instance, StdioCallBack stdin_fn, StdioCallBack stdout_fn, StdioCallBack stderr_fn);     #endregion  Public Class Methods         // int gsapi_set_visual_tracer (gstruct vd_trace_interface_s *I);   } }

　　

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https://www.cyotek.com/blog/convert-a-pdf-into-a-series-of-images-using-csharp-and-ghostscript

https://www.cyotek.com/source-code

https://www.codeproject.com/Articles/317700/Convert-a-PDF-into-a-series-of-images-using-Csharp

https://www.cyotek.com/blog/extending-the-imagebox-component-to-display-the-contents-of-a-pdf-file-using-csharp#files

https://github.com/ArtifexSoftware/ghostpdl-downloads/releases
https://www.ghostscript.com/releases/gsdnld.html

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