Web Application InternetWriteFile API

[idrees]

Hello. I am using InternetWriteFile API to upload a file in site of my own IIS(i.e. on my own PC). The name of the file to upload is uploaded.txt which is 25 bytes in size. But when I see the directory of my website then it show name of the file & it's size is zero bytes. Why aren't the contents of the source file written. I've all the rights.

So whats the problem?

I am sending attached file for win32 project. IF IT DOESN'T HAPPEN BCUZ OF FIREWALL, THEN I am sending source code of the function which uses this API.

////// function body starts //////////
void MyhttpSendRequestWrite(HWND hwnd){
HINTERNET hInternetSession, hURL, hConnect, hHttpRequest;
char buff[3000] = "This is the uploaded file";
DWORD bytesWritten = 10, dwContext, err;

hInternetSession = InternetOpen("Microsoft Internet Explorer",INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
hConnect = InternetConnect(hInternetSession,"localhost", INTERNET_DEFAULT_HTTP_PORT,"idrees", NULL, INTERNET_SERVICE_HTTP, 0, 0);
hHttpRequest = HttpOpenRequest(hConnect, "PUT", "MyWebDirectory/uploaded.txt", "1.1", "localhost", NULL, INTERNET_FLAG_HYPERLINK, dwContext); ///UltWeb/UltISAPI/ultISAPI.dll?default

if(!HttpSendRequest(hHttpRequest, NULL, NULL, NULL, 100)){
MessageBox(NULL,"HttpSendRequest Failed","http Failiur",MB_OK);
return;
}
short count=0;char tf;
DWORD total=0;

//Error is in the following statement
tf = InternetWriteFile(hHttpRequest, buff, sizeof(buff), &bytesWritten);//Not writing contents of file

InternetCloseHandle(hInternetSession);
}
////// function body ends //////////

[stevehoang]

You missed the 3rd argument, which is buff. It suppose to be like this

if (!HttpSendRequest(hHttpRequest, NULL, NULL, buff, 100)){
MessageBox(NULL,"HttpSendRequest Failed","http Failiur",MB_OK)

[idrees]

I want information on InternetWriteFile not HttpSendRequest. InternetWriteFile is not working & giving this error ERROR_INTERNET_INCORRECT_HANDLE_STATE.

If u can modify my code or u can give me a small code whose InternetWriteFile API works correctly then plz post.

[Yiping Zou]

I think you need to use HttpSendrequestEx() and InternetWriteFile() together. instead of using HttpSendRequest()

check the following artical for reference:
http://support.microsoft.com/default...;en-us;Q184352

Yiping

[Yiping Zou]

By the way, StevenHoang was right to use HttpSenRequest(..). In this case, you do not need InternetWriteFile.
Yiping

[Zhuoran]

Sorry ,My english is pool.....
I use above code to write file to http server,but receive 401.3 error,ACL not allow me to write.
So I use Administrator to write ,but the error still occurs,why?Someone can help me?