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标题: DLL可以调用DLL吗 [打印本页]

作者: cam-yp 时间: 2009-4-2 15:09
标题: DLL可以调用DLL吗
假设有2个dll
1个是建立方块的 -> 1.DLL
1个是建立圆柱的 -> 2.DLL

我想在1.DLL中运行2.DLL创建圆柱,能实现吗?

作者: open_lian 时间: 2009-4-2 16:52
不会,帮你顶一个:food:

作者: oucaipin 时间: 2009-4-3 15:01
可以的！！！！

作者: daojianrm 时间: 2009-4-7 11:08
可以，可以实现

作者: cam-yp 时间: 2009-4-7 12:20

daojianrm 发表于 2009-4-7 11:08
可以，可以实现

有例子吗

作者: zzrxt 时间: 2009-4-10 19:31
#include <ctype.h>
#include <stdio.h>
#include <uf.h>
#include <error_bases.h>
#define MAX_INPUT_SIZE  (8)  /* Larger than needed input buffer. */
typedef int (*XMPL_f_p_t)( int argc, char *argv[] );
/*****************************************************************
Please add the correct file extension for a particular platform as follows:
HP - .sl
Windows NT - .dll
Digital Unix, IBM/AIX, SUN, SGI - .so
*/
#define XMPL_SHLIB ("ufd_example_shlib")
#define XMPL_FNC_A ("ep_a")
#define XMPL_FNC_B ("ep_b")
/*****************************************************************
  *
  * Loads a library and finds the function entry point specified by
  * the symbol name (sym), if necessary.  Calls the function with
  * supplied arguments and returns status.  The function pointer is
  * output for future use.
  *
  ***/
static int execute_lib(
  char    *lib,    /* I - Library Name.             */
  char    *sym,    /* I - Symbol Name.             */
  int       argc,    /* I - Argument Count.          */
  char    *argv[], /* I - Arguments.                */
  XMPL_f_p_t *fnc )    /* IO - Function Pointer for 'sym'.*/
{
int error;
/* Load library if necessary... */
  if( NULL == *fnc )
  {
   UF_load_f_p_t generic_fnc;
if( !(error = UF_load_library( lib, sym, &generic_fnc )) )
{
   *fnc = (XMPL_f_p_t) generic_fnc;
}
else    /* Library load failed... */
{
      char message[133];
   UF_get_fail_message( error, message );
   fprintf( stderr,
      "ERROR: While loading \"%s\" (%s)...\n\t%s\n", lib, sym,
      message );
}
  }
  else
error = ERROR_OK;
/* Execute function... */
  if( NULL != *fnc )
error = (**fnc)( argc, argv );
  return( error );
}
/*****************************************************************
  *
  * A simple program to demonstrate dynamic loading and
  * unloading of shared libraries using UF_load_library
  * and UF_unload_library.  The program allows the user
  * to select one of two libraries to load and execute,
  * unload both libraries, or terminate the program.  Target
  * function prototypes are expected to match the 'C' 'main'
  * prototype (i.e. int fnc(int argc, char *argv[])).
  *
  ***/
/*ARGSUSED*/
extern int main(
  int argc,
  char *argv[] )
{
int error;
  if( !(error = UF_initialize()) )
  {
   int done;
done = 0;
do
{
      char input[MAX_INPUT_SIZE+1];
   /* Display user choices... */
   printf( "\n\n" );
   printf( " 1 - Load and execute \"%s\" function.\n",
      XMPL_FNC_A );
   printf( " 2 - Load and execute \"%s\" function.\n",
      XMPL_FNC_B );
   printf( " 3 - Unload libraries.\n" );
   printf( " 4 - Terminate.\n\n" );
   printf( "Enter selection: " );
   /* Get user selection. */
   fgets( input, sizeof(input), stdin );
   printf( "\n\n" );
   /* Selection must be a single digit. */
   if( isdigit(input[0]) && '\n' == input[1] )
   {
      static XMPL_f_p_t fnc_a = NULL;
      static XMPL_f_p_t fnc_b = NULL;
      /* Process selection... */
      switch( input[0] )
      {
      case '1': /* Load and execute first function... */
      {
            char *xmpl_argv[] =
               {
               XMPL_SHLIB,  /* Library to load. */
               XMPL_FNC_A,  /* Function to execute. */
               "Called function ep_a in library ufd_example_shlib."
               };
            int xmpl_argc = sizeof(xmpl_argv) /
                           sizeof(*xmpl_argv);
         error = execute_lib( xmpl_argv[0], xmpl_argv[1],
            xmpl_argc, xmpl_argv, &fnc_a );
      }
      break;
      case '2': /* Load and execute second function... */
      {
            char *xmpl_argv[] =
               {
               XMPL_SHLIB,  /* Library to load. */
               XMPL_FNC_B,  /* Function to execute. */
               "Called function ep_b in library ufd_example_shlib."
               };
            int xmpl_argc = sizeof(xmpl_argv) /
                           sizeof(*xmpl_argv);
         error = execute_lib( xmpl_argv[0], xmpl_argv[1],
            xmpl_argc, xmpl_argv, &fnc_b );
      }
      break;
      case '3': /* Unload library... */
         UF_unload_library( XMPL_SHLIB );
         fnc_a = NULL;
         fnc_b = NULL;
      break;
      case '4': /* Finished - set termination flag. */
         done = 1;
      break;
      default: /* Input character is out of range... */
         fprintf( stderr, "\nERROR: Invalid selection.\n" );
         break;
      }
   }
   else
      fprintf( stderr, "\nERROR: Select with digit only.\n" );
} while( !done && !error );
UF_terminate();
  }
  else
  {
   char message[133];
UF_get_fail_message( error, message );
fprintf( stderr, "ERROR: %s\n", message );
  }
  return( 0 );
}

杨兄,以上代码可调用OK,
例: D:\UGS\NX 4.0\UGOPEN\ufd_load_library.c

作者: cam-yp 时间: 2009-4-11 08:28
我要实现的就是类似XSPAWN的功能
XSPAWN/UFUN,'program name'[,IFERR,label:]这个就是grip执行DLL的函数,不管DLL里面有什么东西,只管执行就ok

作者: zzrxt 时间: 2009-4-14 18:54
可以的.......

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