A better way to get AppData location?

To conform better with Vista I have taken to retrieving the "AppData" location in the registry in order to determine a safe place for my app to write files. The code I use is like this:
err = RegReadString (REGKEY_HKCU, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders", "AppData", appdatapath, PATHLEN, &keysize);
By and large, this works but I have had a few reports that it does not - where the AppData registry entry is corrupt or invalid. How that arises I have no idea.
But, I'm intrigued by a key in that location on my Vista machine. The key is "!Do not use this registry key" and the value is "Use the SHGetFolderPath or SHGetKnownFolderPath function instead". Looks like a pretty good clue!
Can anyone tell me whether these SDK functions will solve my problem, or how they might differ from simply reading the registry string? Does anyone here use them?
Thanks,
Ian
Solved!
Go to Solution.

Hello Ian,
I'm not really sure why that registry location works some times but not others, but Microsoft definitely wants us to use the function and not the registry.
Note that SHGetKnownFolderPath is too new to be included in the version of the Windows SDK that comes with CVI, but you can definitely use SHGetFolderPath which works just as well, in Vista and in XP/2000:
#include <shlobj.h>
char path[MAX_PATHNAME_LEN];
SHGetFolderPath (0, CSIDL_COMMON_APPDATA, NULL, SHGFP_TYPE_CURRENT, path);
(you'll have to add shell32.lib to your CVI project).
CSIDL_COMMON_APPDATA gives you the common, "all users" folder. If you want the per-user folder, you can use CSIDL_APPDATA instead.
Luis

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I've lost my iPhone 4... How can I find it when the device is off linesmen using "find my iPhone app"????? Any way of getting a location from it?????

No. It must be online in order to locate it.
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ORACLE 11.2.0.1.0 by the way

I would use another way, firstly sorting by any unique criteria and using joins
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UNION ALL
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My phone has just been stolen with my car,it is reading offline on fmphone,is there any way to get a location while offline?

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HP Support Forums Moderator
Clicking the "Kudos Star" to the left is a great way to say thanks!
When your problem has been solved, accept the solution by clicking "Accept as Solution" to help other members in the future!
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