#include "highgui.h"
#include <stdio.h>
#include <ctype.h>
void on_trackbar(int position){
if( position == 0 ) {
printf("the position is%d", position);
} else {
printf("the position is %d", position);
}
}
int main(){
IplImage* pImg; //声明IplImage指针
//载入图像
if( (pImg = cvLoadImage("1.bmp")) != 0 )
{
int value = 100;
int count = 200;
cvNamedWindow( "Image", 0);//创建窗口
cvCreateTrackbar("hello", "Image",&value,count,on_trackbar);
int my_position = cvGetTrackbarPos("hello","Image");
//cvWaitKey(0); //等待按键
on_trackbar(my_position);
cvShowImage( "Image", pImg );//显示图像
cvWaitKey(0); //等待按键
cvDestroyWindow( "Image" );//销毁窗口
cvReleaseImage( &pImg ); //释放图像
}
return 0;
}