L_InetHttpSendRequest

#include "ltweb.h"

L_LTWEB_API L_INT L_InetHttpSendRequest(hHttp, pszHeader,ulHeaderSize, pszOptional, ulOptionalSize)

HINET hHttp;	/* handle to an HTTP connection*/
L_TCHAR *pszHeader;	/* pointer to header data*/
L_UINT32 ulHeaderSize;	/* sizeof the header data*/
L_TCHAR *pszOptional;	/* optional data*/
L_UINT32 ulOptionalSize;	/* sizeof the optional data*/

Sends an HTTP request to the HTTP server.

Parameter	Description
hHttp	Handle to the HTTP connection. It is the same handle obtained using the L_InetHttpConnect function.
pszHeader	Pointer to any additional header data to be sent along with the request. This value can be NULL.
ulHeaderSize	Size of the data in pszHeader.
pszOptional	Pointer to any optional data to be sent after the HTTP header.
ulOptionalSize	Size of the data in pszOptional.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function can be used to send a request when it is not necessary to send additional data.

Required DLLs and Libraries

LTWEB

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

See Also

Functions:	L_InetHttpSendBitmap, L_InetHttpSendData, L_InetHttpSendForm
Topics:	HTTP Functions: Sending Data Over a HTTP Connection
	Working with HTTP Functions

Example

 L_INT InetHttpSendRequestExample(L_VOID)
{
   HINET hInet;
   L_INT nRet;
   DWORD dwSizeWrite;

   nRet = L_InetHttpConnect(TEXT("www.leadtools.com"),80,TEXT(""),TEXT(""),&hInet);
   if(nRet==SUCCESS)
   {
      nRet = L_InetHttpOpenRequest(hInet,HTTP_GET,TEXT("/default.htm"),TEXT(""), TEXT("HTTP/1.0"),0);
      if(nRet==SUCCESS)
      {
         L_TCHAR szResponse[2048];
         L_UINT32 lsize;
         L_UINT uStatus;
         L_HANDLE fp;
   
         nRet=L_InetHttpSendRequest(hInet,NULL,0,NULL,0);
         if(nRet!=SUCCESS)
         {
            MessageBox(NULL,TEXT("Error Sending Form"),TEXT("Error"),MB_ICONEXCLAMATION);
            nRet = L_InetHttpCloseRequest(hInet);
            if(nRet != SUCCESS)
               return nRet;
            nRet = L_InetHttpDisconnect(hInet);
            if(nRet != SUCCESS)
               return nRet;
            return nRet;
         }

         nRet = L_InetHttpGetServerStatus(hInet,&uStatus);
         if(nRet != SUCCESS)
            return nRet;
         if(uStatus==L_HTTP_STATUS_OK)
         {
            lsize = 2048;
            nRet = L_InetHttpGetResponse(hInet,(L_CHAR *)szResponse,&lsize);
            if(nRet != SUCCESS)
               return nRet;
            
            fp =CreateFile(TEXT("output.htm"), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
          
            while(lsize!=0)
            {
               WriteFile(fp,szResponse, lsize, &dwSizeWrite, NULL); 
               lsize = 1048;
               L_InetHttpGetResponse(hInet,(L_CHAR *)szResponse,&lsize);
            }
            CloseHandle(fp);
         }
         else
         {
            MessageBox(NULL,TEXT("Problem With Server"),TEXT("Error"),MB_ICONEXCLAMATION);
            lsize = 2048;
            nRet = L_InetHttpGetResponse(hInet,(L_CHAR *)szResponse,&lsize);
            if(nRet != SUCCESS)
               return nRet;
          
            fp =CreateFile(TEXT("error.htm"), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
            
            while(lsize!=0)
            {
               WriteFile(fp,szResponse, lsize, &dwSizeWrite, NULL); 
               lsize = 1048;
               nRet = L_InetHttpGetResponse(hInet,(L_CHAR *)szResponse,&lsize);
               if(nRet != SUCCESS)
                  return nRet;
            }
            CloseHandle(fp);
         }
         nRet = L_InetHttpCloseRequest(hInet);
         if(nRet != SUCCESS)
            return nRet;
      }
      else
         return nRet;

      nRet = L_InetHttpDisconnect(hInet);
      if(nRet != SUCCESS)
         return nRet;
   }
   else
      return nRet;
   return SUCCESS;
}