Range: Demonstrate Http Read Range

Click to open or copy the Range project files.

This sample is intended primarily to demonstrate http read range, but can also be used for simple GET requests without ranges. Application writers may be interested in plugging into the interface defined in Range.h, using one C call to initiate the request and one C callback to receive status and data.

Other interesting aspects of this sample include the following:

Urlmon

• Using urlmon from a console app (not required)
  
  
• Correctly using IStream::Read return values
  
  
• Implementing IHttpNegotiate to add request headers
  
  
• Using IWininetHttpInfo to parse response headers

Wininet

• Passing INTERNET_FLAG_OFFLINE to InternetOpen
  
  
• Calling InternetSetFilePointer in offline mode
  
  
• Calling InternetTimeFromSystemTime

Building SDK Samples

This sample demonstrates the following keywords:

abort; addref; bindtostorage; bufalloc; bufbeg; bufreset; bufshift; bufsize; bufspace; casemsg; coinitialize; couninitialize; createasyncbindctx; createurlmoniker; curlmoncallback; failed; getbindinfo; getclientsite; getcontainer; getcurrentthreadid; getpriority; grokint; grokstr; isdigit; isequalguid; min; multibytetowidechar; ondataavailable; onlowresource; onobjectavailable; onprogress; onstartbinding; onstopbinding; parsemultipartheader; queryinterface; recvbuf; release; stdmethodimp_; succeeded; switch; upcase;