HttpOpenRequest lplpszAcceptTypes

Im trying to implement a simple update function, but I cant get this function to work with binary files. Can someone please post a snippet of code showing how to implement this?

I have tried recasting the lplpszAcceptTypes every which way but loose, and VC keeps complaining about it. A search of the net shows that im nto alone in this problem, but turns up no solution as yet.

Currently I have it implmented as such:

const char szMIME[] = "image/bmp";
LPSTR MIME[3];
LPVOID lpMIME;

lpMIME = &MIME[0];

/* snip code that copies szMIME into allocated memory pointed to by MIME[0]; */


hRequest = HttpOpenRequest( hConnection , NULL , (char *)&szFile , NULL , NULL , (LPSTR *)lpMIME/*image/bmp*/ , INTERNET_FLAG_KEEP_CONNECTION || INTERNET_FLAG_PRAGMA_NOCACHE , 0 );

OK, I feel dumb now, all i needed to do was recast the lpMIME as (char **)lpMIME and it accepted it.

Of course casting can be used to cover up a multitude of sins, which don't involve reading the manual.

> INTERNET_FLAG_KEEP_CONNECTION || INTERNET_FLAG_PRAGMA_NOCACHE
Do you know the difference between | and || ?

> (char *)&szFile
Perhaps if you dropped the &, you could drop the cast as well?
I'm assuming from your use of hungarian notation that this is an array?

> (LPSTR *)lpMIME
To quote the manual page

Originally Posted by msdn

lplpszAcceptTypes
[in] A pointer to a null-terminated array of strings that indicates media types accepted by the client. If this parameter is NULL, no types are accepted by the client. Servers generally interpret a lack of accept types to indicate that the client accepts only documents of type "text/*" (that is, only text documents—no pictures or other binary files). For more information and a list of valid media types, see ftp://ftp.isi.edu/in-notes/iana/assi...es/media-types.

How is your array terminated with a NULL pointer?
Maybe

Code:

char *szMIME[] = {
    "image/bmp",
    NULL
};

Then perhaps you can pass szMime as a parameter without any casting, and without any copying?

You cant pass the array directly , the function call requires a pointer to an array of pointers, not a single pointer to a string. In any case, the casting was the problem, since I already had the array of pointers set up properly. The compiler just didnt want to accept the conversion from const char ** to char **