专用于下载到本地磁盘的同时显示进度条
使用本类，请先取得CHttpClient下载类
// HttpClientProcess.h: 专用于下载到本地磁盘的同时显示进度条
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_HTTPCLIENTPROCESS_H__)
#define AFX_HTTPCLIENTPROCESS_H__
#include "HttpClient.h"
class CHttpClientProcess : public CHttpClient
{
public:
CHttpClientProcess();
virtual ~CHttpClientProcess();
bool Download(char*url,char*fname,void* p); //p为进度条控件的指针
virtual void OnDataRecived(char* data,long datasize,int first = false );
private:
CProgressCtrl* m_lpProcessBar;
};
#endif
//------------------------------------------------------------------
// HttpClientProcess.cpp
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "HttpClientProcess.h"
CHttpClientProcess::CHttpClientProcess()
{
m_lpProcessBar=NULL;
}
CHttpClientProcess::~CHttpClientProcess()
{
}
void CHttpClientProcess::OnDataRecived(char* data,long datasize,int first)
{
CHttpClient::OnDataRecived(data,datasize,first);
if(!m_lpProcessBar)return;
if(first)
{
char buf[128];
memset(buf,0,128);
GetHeader("Content-Length",buf);
m_lpProcessBar->SetRange32(0,atol(buf));
m_lpProcessBar->SetPos(datasize);
}
else
{
m_lpProcessBar->SetPos(m_lpProcessBar->GetPos()+datasize);
}
}
bool CHttpClientProcess::Download(char *url, char *fname, void *p)
{
m_lpProcessBar=(CProgressCtrl*)p;
return CHttpClient::Download(url,fname);
}
