/*****************the touchscreen blind character input program*************/   /*******************Author : DONG Shengdong*****************/ /*you can set the property value by clicking the area,and you can use   the default the property value,then start to input points.*/ #ifndef _BLIND_H #define _BLIND_H  #include <stdio.h> #include <stdlib.h> #include <unistd.h>
 #include <fcntl.h> #include "process.h" #include "time.h" #include "math.h" #include "pthread.h" #include "loadbmp.h"     /*----------------------the head file----------------------*/ //內(nèi)部有一個(gè)全局變量 character,調(diào)用函數(shù)返回一個(gè)漢字或詞組charater int  CharacterInput(); //啟動(dòng)盲文輸入法  //內(nèi)部有一個(gè)全局變量 character,調(diào)用函數(shù)返回一個(gè)漢字或詞組charater int  ProSetting(int *x_dis,int *y_dis); //設(shè)置特征值,x_dis:橫間距,y_dis:列間距; //以地址傳遞方式  int  CharacterInpuAgain(int x_distance,int y_distance); //根據(jù)特征值,來(lái)啟動(dòng)盲文輸入法 //x_distance : x_dis //y_distance : y_dis   /*--------------Wait until the blind points finish----------------*/  int ProSetting(int *x_dis,int *y_dis)          {          pthread_t th_b,th_c,th_d,th_e,th_f;            //create four pthreads          void *retval;                    init();          varinit();          initpro();          initpoint();                    pthread_create(&th_e,NULL,overtime,0);   //超時(shí)檢測(cè)          pthread_create(&th_b,NULL,time_count,0); //記時(shí)          pthread_create(&th_d,NULL,property_set,(void *)&th_b);  //特征值設(shè)置                          pthread_create(&th_f,NULL,check_pro,(void *)&th_e);  //檢查是否輸入完畢                  pthread_join(th_b,&retval);          pthread_join(th_d,&retval);          pthread_join(th_e,&retval);          pthread_join(th_f,&retval);                                *x_dis=property.pointx;
          *y_dis=property.pointy;                    return 0;         }                          int  CharacterInput()         {          pthread_t th_a,th_b,th_c;          void *retval;                    init();          varinit();          initpro();          initpoint();          initmatrix();                    pthread_create(&th_a,NULL,point_receive,0);  //接收盲點(diǎn)          pthread_create(&th_b,NULL,time_count,(void *)&th_a); //記時(shí)          pthread_create(&th_c,NULL,process,(void *)&th_b);  //盲點(diǎn)處理                    pthread_join(th_a,&retval);          pthread_join(th_b,&retval);          pthread_join(th_c,&retval);                     return 0;                }                int  CharacterInpuAgain(int x_distance,int y_distance)         {          pthread_t th_a,th_b,th_c;          void *retval;                    init();          varinit();          initpro();          initpoint();          initmatrix();                   property.pointx=x_distance;          property.pointy=y_distance;                   pthread_create(&th_a,NULL,point_receive,0);          pthread_create(&th_b,NULL,time_count,(void *)&th_a);          pthread_create(&th_c,NULL,process,(void *)&th_b);                    pthread_join(th_a,&retval);          pthread_join(th_b,&retval);          pthread_join(th_c,&retval);                     return 0;                }            #endif        /****************coding over****************/