NX二次开发-打开part对话框UF_UI_open_part

这是UFUN帮助的官方例子

 /******************************************************************************
 Copyright (c) 1999 Unigraphics Solutions, Inc.
 Unpublished - All Rights Reserved

 *******************************************************************************/
 /* The following example demonstrates how to invoke
 UF_UI_open_part. */
 /* ***** Include Files ***** */
 #include <stdio.h>
 #include <string.h>
 #include <uf.h>
 #include <uf_part.h>
 #include <uf_ui.h>
 /* ***** Local Prototype ***** */
 static logical my_error_handler
 (
 UF_UI_err_data_p_t     error_fn_data,
 char                  *file_name,
 int                    error,
 UF_PART_load_status_t *error_status,
 logical               *skip_error_disp
 );
 /* ***** Entry Point ***** */
 /*ARGSUSED*/
 extern void ufusr(char *param, int *ret_code, int len)
 {
     /*
     *********************
     variable declarations
     *********************
     */
     int response;
     tag_t part_tag = NULL_TAG;
     char file_name[MAX_FSPEC_SIZE + ] = "flange.prt";
     const char *message = "part open error";
     logical use_display_file = FALSE;
     UF_PART_load_status_t part_status;
     UF_UI_err_t error_handler;

     /*
     ************************************************
     initialize the 'struct' as an open part 'struct'
     and assign the local function prototyped above
     as the callback
     ************************************************
     */
     error_handler.type = UF_UI_open_part_fun;
     error_handler.fun.open = my_error_handler;
     /*
     ************************************************
     assign the client data and its size
     Note:  this is an arbitrary usage of the client
     data.  A better use might be to pass the name of
     a UIStyler dialog which would then be invoked in
     the callback
     ************************************************
     */
     error_handler.fun_data.size = strlen(message) + ;
     error_handler.fun_data.data = message;
     /*
     *************************************************
     call the function, free any allocated memory
     *************************************************
     */
     UF_initialize();
     UF_UI_open_part(&error_handler, file_name,
         &use_display_file,
         &part_tag, &response, &part_status);
     if (part_status.statuses != NULL)
     {
         UF_free(part_status.statuses);
     }
     if (part_status.file_names != NULL)
     {
         UF_free_string_array(part_status.n_parts,
             part_status.file_names);
     }
     UF_terminate();
 }
 /* ***** local function to be invoked as a callback ***** */
 static logical my_error_handler
 (
 UF_UI_err_data_p_t     error_fn_data,
 char                  *file_name,
 int                    error,
 UF_PART_load_status_t *error_status,
 logical               *skip_error_disp
 )
 {
     /*
     ***************************************************
     this function trivially just prints the client data
     that it receives as well as the file name and the
     error
     As mentioned above, a better usage of the client
     data would be to pass through the name of a
     UIStyler dialog to display.  Such a use might
     resemble the following:
     UF_STYLER_create_dialog (
     ( char * ) error_fn_data->data ,
     callbacks ,
     n_callbacks ,
     NULL ,
     &response );
     ***************************************************
     */
     fprintf(stderr, "my_error_handler called with:\n"
         "    error_fn_data->size = %d\n"
         "    error_fn_data->data = %s\n"
         "    file_name           = %s\n"
         "    error               = %d\n",
         error_fn_data->size,
         (const char *)error_fn_data->data,
         file_name,
         error
         );
     /* **************************************************
     instruct NX to display its error dialog and to
     continue looping within the dialog until a part
     is opened
     **************************************************
     */
     *skip_error_disp = TRUE;
     return TRUE;
 }