新手请教图像界面问题
近期编了一个c程序，想弄成图形界面来显示，不知道怎样能从图形界面输入参数，然后又从那里输出，不知道怎么修改，不会要重写一遍吧，用c++语言。我的程序如下：
#include"stdio.h"
#include<stdlib.h>
#include<conio.h>
#define getpch(type)(type*)malloc(sizeof(type))
#define NULL 0
#define contain 160
struct jcb{
char name[10];
int length;
int fir;
int tail;
struct jcb *pre;
struct jcb *next;
}*head,*now,*spare;
typedef struct jcb JCB;
del()
{char name[10];JCB *p;
printf("输入你要删除的进程名：");
scanf("%s",name);
p=head;
if(strcmp(head->name,name)==0){strcpy(p->name,"space");if(strcmp(p->next->name,"space")==0){p->length=p->length+p->next->length;p->tail=p->next->tail;p->next=p->next->next;}}
else {
do{p=p->next;}while(strcmp(p->name,name)!=0&&p!=head);
if(p==head)printf("没有找到你需要删除的文件，请检查是否输入错误！！");
else {
strcpy(p->name,"space");
if(strcmp(p->next->name,"space")==0){p->length=p->length+p->next->length;p->tail=p->next->tail;p->next=p->next->next;}
if(strcmp(p->pre->name,"space")==0){p->pre->length=p->pre->length+p->length;p->pre->tail=p->tail;p->pre->next=p->next;}
}}
getchar();
}
restore()
{JCB *p,*q;int i=0;
q=getpch(JCB);q->pre=NULL;
p=head;
do
{if(strcmp(p->name,"space")==0)
i=i+p->length;
p->next->fir=p->next->fir-i;
p->next->tail=p->next->tail-i;
p=p->next;
}while(p->next!=head);if(strcmp(p->name,"space")==0)i=i+p->length;
if(strcmp(head->name,"space")==0)head=head->next;p=head;
do
{if(strcmp(p->name,"space")!=0)
{p->pre=q;q->next=p;q=p;}
p=p->next;
}while(p!=head);
strcpy(spare->name,"space");
spare->length=i;
spare->fir=q->tail+1;
spare->tail=q->tail+i;
spare->pre=q;
spare->next=p;
head->pre=spare;
}
newj()
{JCB *p;char a;
printf("\n 请输入作业名：（注意：不能用'space'做作业名！）");
now=getpch(JCB);
scanf("%s",now->name);
printf("\n 请输入作业大小：");
scanf("%d",&now->length);
if(now->length>contain)printf("\n 内存空间不足，分配失败！！");
else{
if(spare->fir==1){now->fir=1;now->tail=now->length;now->pre=spare;now->next=spare;head=now;spare->pre=head;spare->next=head;spare->fir=head->length+1;spare->length=contain-head->length;}
else
{p=head;
while((strcmp(p->next->name,"space")!=0||p->next->length<now->length)&&p->next!=head)p=p->next;
if(p->next==head)
{printf("\n 内存空间不足，分配失败！！是否整理内存?（Y/N）");a=getchar();a=getchar();
if(a=='Y'||a=='y'){restore();printf("\n 内存整理完成！请尝试回主界面重新输入作业！");}
else printf("不整理内存！作业将无法分配，分配失败！");
}
else{
now->fir=p->tail+1;
now->tail=p->tail+now->length;
now->pre=p;
if(p->next->length>now->length){
p->next->fir=now->tail+1;
p->next->length=p->next->length-now->length;
now->next=p->next;
}
else now->next=p->next->next;
p->next=now;
}
}}getchar();
}
disp()
{JCB *p;int i,j;
p=head;
clrscr();
printf("内存空间分配情况为：\n");
do{
i=p->length;
if(strcmp(p->name,"space")!=0)for(j=0;j<i;j++)printf("■");
else for(j=0;j<i;j++)printf("□");
p=p->next;}while(p!=head);
printf("\n各作业以及可用空间详细信息：\n");
printf("作业名\t\t使用空间\t头地址\t\t尾地址");
do{
printf("\n%s\t\t%d\t\t%d\t\t%d",p->name,p->length,p->fir,p->tail);
p=p->next;}while(p!=head);
getchar();
}
void main()
{char c='0';
spare=getpch(JCB);
strcpy(spare->name,"space");
spare->length=contain;
spare->fir=1;
spare->tail=contain;
while(c!='5'){clrscr();
printf(" ************ 欢迎使用内存分配程序 ************ \n\n");
printf(" ********************************************************** \n");
printf(" * * \n");
printf(" * 1.新建一个作业 * \n\n");
printf(" 2.删除一个作业 \n\n");
printf(" 3.显示当前作业分配情况 \n\n");
printf(" 4.整理当前内存 \n\n");
printf(" * 5.退出程序 * \n");
printf(" * * \n");
printf(" ********************************************************** \n");
printf(" 请选择你要做的操作：");
c=getchar();
switch(c){
case '1':newj();break;
case '2':del();break;
case '3':disp();break;
case '4':restore();break;
case '5':break;
default :printf("\n输入错误！请重新输入！");
}getchar();
}
}