学习OpenCV课后题3.8(a)

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// Ex3_8.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <cv.h>
#include <cvcam.h>
#include <cxcore.h>
#include <highgui.h>

#pragma comment(lib,"cv.lib")
#pragma comment(lib,"cvcam.lib")
#pragma comment(lib,"cxcore.lib")
#pragma comment(lib,"highgui.lib")

typedef struct tagMyStruct
{
CvPoint m_Point;
CvRect m_Rect;
}SMyStruct;

void WriteMyStruct(CvFileStorage *pStorage, const char *pName, SMyStruct *pMyStruct)
{

if (NULL == pStorage)
{
return ;
}

cvStartWriteStruct(pStorage,pName,CV_NODE_MAP);

  cvStartWriteStruct(pStorage,"CvPoint",CV_NODE_SEQ);
   cvWriteInt(pStorage,NULL,pMyStruct->m_Point.x);
   cvWriteInt(pStorage,NULL,pMyStruct->m_Point.y);
  cvEndWriteStruct(pStorage);

  cvStartWriteStruct(pStorage,"CvRect",CV_NODE_SEQ);
   cvWriteInt(pStorage,NULL,pMyStruct->m_Rect.x);
   cvWriteInt(pStorage,NULL,pMyStruct->m_Rect.y);
   cvWriteInt(pStorage,NULL,pMyStruct->m_Rect.width);
   cvWriteInt(pStorage,NULL,pMyStruct->m_Rect.height);
  cvEndWriteStruct(pStorage);

cvEndWriteStruct(pStorage);
}

void ReadMyStruct(CvFileStorage *pStorage, const char *pName, SMyStruct *pMyStruct)
{
CvFileNode *pMapFileNode = cvGetFileNodeByName(pStorage,NULL,pName);
assert(pMapFileNode != NULL);

CvSeq *pSeq1 = cvGetFileNodeByName(pStorage,pMapFileNode,"CvPoint")->data.seq;
assert(pSeq1 != NULL);

pMyStruct->m_Point.x = cvReadInt( (CvFileNode*)cvGetSeqElem(pSeq1,0) );
pMyStruct->m_Point.y = cvReadInt( (CvFileNode*)cvGetSeqElem(pSeq1,1) );

printf("%d/n",pMyStruct->m_Point.x);
printf("%d/n",pMyStruct->m_Point.y);

CvSeq *pSeq2 = cvGetFileNodeByName(pStorage,pMapFileNode,"CvRect")->data.seq;
assert(pSeq2 != NULL);

pMyStruct->m_Rect.x = cvReadInt( (CvFileNode*)cvGetSeqElem(pSeq2,0) );
pMyStruct->m_Rect.y = cvReadInt( (CvFileNode*)cvGetSeqElem(pSeq2,1) );
pMyStruct->m_Rect.width = cvReadInt( (CvFileNode*)cvGetSeqElem(pSeq2,2) );
pMyStruct->m_Rect.height = cvReadInt( (CvFileNode*)cvGetSeqElem(pSeq2,3) );

printf("%d/n",pMyStruct->m_Rect.x);
printf("%d/n",pMyStruct->m_Rect.y);
printf("%d/n",pMyStruct->m_Rect.width);
printf("%d/n",pMyStruct->m_Rect.height);

}

int main(int argc, char* argv[])
{
/**************** 写数据 *******************/
{
CvFileStorage *pStorage = cvOpenFileStorage(
           "struct.xml",
             NULL,
          CV_STORAGE_WRITE
            );
assert(pStorage != NULL);

SMyStruct sTest = {1, 10, 10, 10,10,10};

WriteMyStruct(pStorage,"MyStruct",&sTest);

cvReleaseFileStorage(&pStorage);
}

/*************** 读数据 ******************/
{
  SMyStruct sReadStruct;

  CvFileStorage *pStorage = cvOpenFileStorage(
          "struct.xml",
            NULL,
          CV_STORAGE_READ
               );
  assert(pStorage != NULL);

  ReadMyStruct(pStorage,"MyStruct",&sReadStruct);

}

return 0;
}