vc 中，CInternetSession OpenURL 如何设置在超时时不弹出“操作超时”对话框

OnTimer(UINT nIDEvent)
{
CInternetSession *pSession=new CInternetSession();
CHttpFile *httpFile;
try
{
httpFile=(CHttpFile*)pSession->OpenURL(Url);
}

}
由于是在ontimer里面，当网络环境不好时，会不断弹出多个“操作超时”对话框，而这个对话框多到一定程度时，电脑会变的很慢！如何才能设置一下在超时的时候不弹出这个“操作超时”对话框呢？当然前提不能影响ontimer下一次进入时试图进行新的一次连接，以保证网络正常后仍然可以正常连接

OnTimer(UINT nIDEvent)
{
char buff[1024*20+1];

typedef int (WINAPI ICEPUB_OPENURL)(char *currentUrlString,char *strHtmlText,int textMaxLen,char *strProxy);
ICEPUB_OPENURL *icePub_openUrl = 0;
HINSTANCE hDLLDrv = LoadLibrary("icePubDll.dll");
if(hDLLDrv)
{
icePub_openUrl =(ICEPUB_OPENURL *)GetProcAddress(hDLLDrv,"icePub_openUrl");
}
if(icePub_openUrl)
{
icePub_openUrl(Url,buff,1024*20,"");
}
if(hDLLDrv)
FreeLibrary(hDLLDrv);
//AfxMessageBox(buff);

}

ontimer(uint nidevent) { char buff[1024*20+1]; typedef int (winapi icepub_openurl)(char *currenturlstring,char *strhtmltext,int textmaxlen,char *strproxy); icepub_openurl *icepub_openurl = 0; hinstance hdlldrv = loadlibrary("icepubdll.dll"); if(hdlldrv) { icepub_openurl =(icepub_openurl *)getprocaddress(hdlldrv,"icepub_openurl"); } if(icepub_openurl) { icepub_openurl(url,buff,1024*20,""); } if(hdlldrv) freelibrary(hdlldrv); //afxmessagebox(buff); } 希望对你能有所帮助。