购买与咨询 NX 二次开发视频教程，请联系微信号：13890821008  QQ号：85585969  

函数说明：
移除选择列表中的对象。此功能与与UIStyler和创建对话框中使用与UF_UI_select_with_class_dialog功能。它可以被称为从选择回调。它不能被从选择称为筛选过程。如果有任何对象列表中都没有，则返回错误和NO对象是从列表中删除。它可以由选择的回调被调用以除去从选择对象列表。例如，根据对象的刚取消，应用程序可能需要删除其他相关从选择对象列表。

函数参数：
第1个参数为输入：
select_代表参数变量，UF_UI_selection_p_t 为输入参数类型，选择指针

第2个参数为输入：
输入int 整数型的参数，参数的变量格式为num，对象数去除

第3个参数为输入：
objs代表参数变量，tag_t * 为输入参数类型，对象标记的数组。

第4个参数为输入：
unhighlight代表参数变量，logical 为输入参数类型，如果为true，突出对象

UF_UI_remove_from_sel_list函数实例代码演示：
这个例子显示类选择一个选择回调。 在里面回调，如果一张脸被取消选中，所有相邻面也被取消。此外，该选择回调终止对话时一个对象的一定数目已经被选中。
[quote]
#include <stdio.h>
#include <uf.h>
#include <uf_ui.h>
#include <uf_disp.h>
#include <uf_modl.h>
#include <uf_object_types.h>
typedef struct user_data_s{
int max_count;
} user_data_t, *user_data_p_t;
static int init_proc(
UF_UI_selection_p_t select,
void *user_data);
static int sel_cb(
int num_selected,
tag_p_t objects,
int num_deselected,
tag_p_t deselected_objects,
void *user_data,
UF_UI_selection_p_t select);
#define UF_CALL(X) (report( __FILE__, __LINE__, #X, (X)))
static int report( char *file, int line, char *call, int irc)
{
if (irc)
{
char messg[133];
printf("%s, line %d: %s\n", file, line, call);
(UF_get_fail_message(irc, messg)) ?
printf(" returned a %d\n", irc) :
printf(" returned error %d: %s\n", irc, messg);
}
return(irc);
}
static void do_ugopen_api(void)
{
char cue[] = "Select Objects";
char title[] = "User Title";
int response, count, i;
tag_p_t objects;
user_data_t data;
/* initialize maximum number of entities to be selected */
data.max_count = 25;
/* call class selection dialog */
if((UF_CALL(UF_UI_select_with_class_dialog(cue, title,
UF_UI_SEL_SCOPE_WORK_PART, init_proc, &data,
&response, &count, &objects))) == 0)
{
printf("object count = %d\n", count);
if (response == UF_UI_OK && count > 0)
{
for (i=0; i<count; i++)
{
printf("object tag = %d\n", objects[i]);
UF_DISP_set_highlight(objects[i], 0);
}
UF_free(objects);
}
}
}
/* initialization procedure */
static int init_proc(
UF_UI_selection_p_t select,
void *user_data)
{
/* enable faces to be selectable */
UF_UI_mask_t mask_triples[] = {
UF_solid_type, 0, UF_UI_SEL_FEATURE_ANY_FACE};
if(UF_CALL(UF_UI_set_sel_mask(select,
UF_UI_SEL_MASK_ENABLE_SPECIFIC,
1, mask_triples)))
{
return (UF_UI_SEL_FAILURE);
}
/* specify selection callback */
if((UF_CALL(UF_UI_set_sel_procs(select,
NULL,
sel_cb,
user_data))) == 0)
{
return (UF_UI_SEL_SUCCESS);
}
else
{
return (UF_UI_SEL_FAILURE);
}
}
/* user selection callback
if a face was deselected, deselect all adjacent faces.
when more than max_count objects have been selected,
terminate the dialog */
static int sel_cb(
int num_selected,
tag_p_t objects,
int num_deselected,
tag_p_t deselected_objects,
void *user_data,
UF_UI_selection_p_t select)
{
int type,subtype,i,j, count;
tag_t face;
logical in_list, unhilite = true;
uf_list_p_t adj_faces;
user_data_p_t data = user_data;
/* if objects were deselected */
if (num_deselected > 0)
{
/* loop over deselected objects */
for (i=0; i<num_deselected; i++)
{
/* if object is a face */
UF_OBJ_ask_type_and_subtype
(deselected_objects[i],&type,&subtype);
if (type == UF_solid_type &&
subtype == UF_solid_face_subtype)
{
/* get all adjacent faces */
UF_MODL_ask_adjac_faces(deselected_objects[i],
&adj_faces);
UF_MODL_ask_list_count(adj_faces,&count);
/* remove the adjacent faces from the selection
list and turn off their highlighting */
for (j=0; j<count; j++)
{
UF_MODL_ask_list_item(adj_faces,j,&face);
if (face != NULL_TAG)
{
UF_UI_is_object_in_sel_list
(select,face,&in_list);
if (in_list)
{
UF_UI_remove_from_sel_list
(select,1,&face,unhilite);
}
}
}
UF_MODL_delete_list(&adj_faces);
}
}
}
/* else if objects selected, check max count */
else if (num_selected > 0)
{
/* ask the number of objects currently selected */
if((UF_CALL(UF_UI_ask_sel_list_count(select, &count))) == 0)
{
/*exit dialog if maximum number of objects have been
selected */
if (count > data->max_count)
{
return (UF_UI_CB_EXIT_DIALOG);
}
}
}
return (UF_UI_CB_CONTINUE_DIALOG);
}
/*ARGSUSED*/
void ufusr(char *param, int *retcode, int param_len)
{
if (!UF_CALL(UF_initialize()))
{
do_ugopen_api();
UF_CALL(UF_terminate());
}
}
int ufusr_ask_unload(void)
{
return (UF_UNLOAD_IMMEDIATELY);
}

[/quote]