winhttp: Add stub implementation for WinHttpReadData.

dlls/winhttp/main.c

@@ -224,3 +224,15 @@ BOOL WINAPI WinHttpSetOption (HINTERNET hInternet, DWORD dwOption, LPVOID lpBuff
     SetLastError(ERROR_NOT_SUPPORTED);
     return FALSE;
 }
+
+/***********************************************************************
+ *          WinHttpReadData (winhttp.@)
+ */
+BOOL WINAPI WinHttpReadData (HINTERNET hInternet, LPVOID lpBuffer, DWORD dwNumberOfBytesToRead,
+                             LPDWORD lpdwNumberOfBytesRead)
+{
+    FIXME("(%d): stub\n", dwNumberOfBytesToRead);
+
+    SetLastError(ERROR_NOT_SUPPORTED);
+    return FALSE;
+}

dlls/winhttp/winhttp.spec

@@ -18,7 +18,7 @@
 @ stdcall WinHttpQueryDataAvailable(ptr ptr)
 @ stub WinHttpQueryHeaders
 @ stdcall WinHttpQueryOption(ptr long ptr ptr)
-@ stub WinHttpReadData
+@ stdcall WinHttpReadData(ptr ptr long ptr)
 @ stdcall WinHttpReceiveResponse(ptr ptr)
 @ stdcall WinHttpSendRequest(ptr wstr long ptr long long ptr)
 @ stub WinHttpSetCredentials