Wininet upload file

Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? Important The Internet Explorer 11 desktop application will be retired and go out of support on June 15, for a list of what's in scope, see the FAQ.

Note This sample uses pre-configured access to the Internet. That mechanism is provided by the context ID parameter given to many of the member functions in the WinInet support classes. The context assigned to a particular Internet object is used only to identify the activity the object causes in the OnStatusCallback member of the CInternetSession object.

The call to OnStatusCallback receives several parameters; these parameters work together to tell your application what progress has been made for which transaction and connection. When you create a CInternetSession object, you can specify a dwContext parameter to the constructor.

If, on the other hand, you do specify a specific context ID of your own, the object and any work it does will be associated with that context ID. You can use the context IDs to identify what status information is being given to you in your OnStatusCallback function. The following code sample shows how you can use the retry logic to handle the error return response from HttpEndRequest.

This sample doesn't cover the pre-authenticate request discussed above. HttpSendRequestExA function. HttpAddRequestHeadersA function. Microsoft Network Monitor 3. Improve this question.

Yenii Ceri. Yenii Ceri Yenii Ceri 1 2 2 bronze badges. Add a comment. Active Oldest Votes. ReadFile hIn. HttpSendRequest hreq. HttpAddRequestHeaders hreq. HttpSendRequestEx hreq. WriteToInternet hreq. HttpEndRequest hreq. Improve this answer. Community Bot 1 1 1 silver badge. Remy Lebeau Remy Lebeau k 29 29 gold badges silver badges bronze badges.