SHGetKnownFolderPath problem

Hi,

i am developing an application for Windows Vista/XP with Visual Studio 2005 Express Edition under Windows Xp with the Microsoft platform SDK v6.0 installed.

When i start debug the application under windows xp i get error message before even the application gui is loaded:

"Can't find DLL entry point SHGetFolderPathA in shell32.dll "

Does that mean that i can't develop Vista application under Windows XP:D ?

SHGetKnownFolderPath is only supported by vista - you cannot use it on XP, so if you plan to write application for both OSes - use SHGetFolderPath call when on XP

Actually before the call to ( SHGetKnownFolderPath ) or ( SHGetFolderPath ) i am checking the OS, if it is Windows Xp then call ( SHGetFolderPath ), if it is Windows Vista then call ( SHGetKnownFolderPath ).

I placed a breakpoint before the call to ( SHGetFolderPath ) or to ( SHGetKnownFolderPath ), but the problem is that the previous error occures even before executing the code above!:confused:

You can't call any Vista API on XP at all. If you even include them in the code, the program won't start! You need to make a Vista-only EXE.

Quote:

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Originally Posted by Elysia

You can't call any Vista API on XP at all. If you even include them in the code, the program won't start! You need to make a Vista-only EXE.

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Do you mean that i should recompile the project under Windows Vista?

Yep, and provide a version for XP and below, too. You can use defines.
Vista version will only run on Vista.

I assume you're looking for your executable's residing folder? I always use the below since it works from win98 to vista. Deprecation doesn't concern me, so long as the code works. I don't even know how much one should bend to vista, especially considering ms is working on another platform release in early 09'.

Code:

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char Path[MAX_PATH];    /* GetCurDirect */
 GetModuleFileName(NULL, Path, MAX_PATH);
 getDrivePath=Path; /* string */
 string::size_type loc= getDrivePath.find_last_of("\\");
 getDrivePath.erase(loc+1);  /* Retain full pathway  */

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Quote:

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Originally Posted by Elysia

If you even include them in the code, the program won't start! You need to make a Vista-only EXE.

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Nonsense.
You just have to call dynamically the apis.
It has always been like that for 13 years with 9x-NT

Dynamic works, static doesn't. That's the thing.
But dynamic is trickier to use.

Quote:

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Originally Posted by Elysia

Dynamic works, static doesn't. That's the thing.
But dynamic is trickier to use.

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It is indeed a bit trickier, but the since you still have to deal with the two different variants of code, it's probably not much harder to use the dynamic version than it is to produce two different binaries and deal with the consequences of that.

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Mats

Elysia is correct. It's a Vista only function. The minimum OS requirement as indicated in this link is Windows Vista.

Also, this link indicates that it it's not available in XP

Argh. Once again, Microsoft and their stupid API. Why the heaps of trouble to install a game?
Just provide one API, InstallGame or something that they call with the name and some details, and poof, finished!