Check File Size using HEAD Request

Demonstrates how to quickly check the size of an HTTP download by using the HEAD request.

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

#include <C_CkHttp.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    BOOL success;
    HCkHttpResponse response;

    http = CkHttp_Create();

    //  Any string unlocks the component for the 1st 30-days.
    success = CkHttp_UnlockComponent(http,"Anything for 30-day trial");
    if (success != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        return;
    }

    //  Send a HEAD request to get the response header:

    response = CkHttp_GetHead(http,"http://www.chilkatsoft.com/download/ChilkatDotNet2.msi");

    if (response == 0 ) {
        printf("%s\n",CkHttp_lastErrorText(http));
    }
    else {

        //  The ContentLength property of the HTTP response is
        //  the size of the remote file:
        printf("Size of download = %d\n",CkHttpResponse_getContentLength(response));

    }


    CkHttp_Dispose(http);

    }