Thread: File Types

Originally Posted by Codeplug

MSDN: Introduction to File Associations

MSDN: Registry

Originally Posted by Codeplug

The first link describes what registry entries that needed to be modified/added.

It's all there.

gg

Ok, I'm sorry, I still don't really understand what to do. Does it actually say what values to add on that page? I found a link off of that page, but it wasn't actually the page. Anyway, I've been trying for a while now, to no avail. Here's what I found, although I must be doing something wrong because it isn't working: http://msdn2.microsoft.com/en-us/lib...70(VS.85).aspx and http://msdn2.microsoft.com/en-us/lib...75(VS.85).aspx. Can anyone explain this to me simply? I'm rather slow.

Use the tree-view on the left and look at some of the surrounding documentation. I would also inspect existing entries in your registry for examples - like how .txt maps to notepad.exe etc..

gg

I associated one of the file types with my application not from the regristry, but form a folder - Tools->Folder Options->File Types. I then looked at the registry to see what it had done, did the exact same thing with another file I want to associate but this time I copied the stuff in the registry, changing only the things that needed to be changed, such as the name. Of course, the first one worked but the second one did not. Here's what I've tried:
Under HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Explorer\FileExts\.mona:

Code:

(Default) = (value not set)
Progid = mona_auto_file
          OpenWith List
                    (Default) = (value not set)
                     a = Program Name.exe
                     b = NOTEPAD.EXE
                     MRUlist = ab
           OpenWithProgids
                     (Default) = (value not set)
                     ft000001 = (zero-length binary value) //This is a REG_BINARY type
                     mona_auto_file= (zero-length binary value) //This is a REG_BINARY TYPE
                     File Type Description= (zero-length binary value) //This is a REG_BINARY type

Gosh, this is a pain. Any suggestions?

Well, I already tried that codeplug and it didn't really help...

Yeah I know- I used different names in my app - those names would be silly! I just didn't feel like putting the real names.

Will this ever end? Ok, I have one last question. I have updated the icon for my file, but it doesn't appear to be working. I was looking through the documentation and found the SHUpdateImage( function which is apparently necessary to make the icons show up. When looking at it, I found that I have to use two other functions in combination with it (what is with the stupid win api? If they are going to make you call three different functions for one, can't they put it into 1 function?!)! So I tried that:

Code:

LPSTR lps = "C:\\My Program.exe";
int index;
UINT value;
SHFILEINFO sh;
SHGetFileInfo(lp, 0, &sh, sizeof(SHFILEINFO), SHGFI_SYSICONINDEX);
IExtractIcon::GetIconLocation(GIL_DEFAULTICON, lps, sizeof(LPSTR), &index, &value);
SHUpdateImage(lps, index, value, sh.iIcon);

However, I recieve compiler error C2352:

Code:

error C2352: 'IExtractIconA::GetIconLocation' : illegal call of non-static member function

I looked up what that error meant, but I have no idea how to fix it... does anyone else? I'm sure I made some other mistake anyway, so if anyone sees anything please point it out.

BTW Elysia that's not my real program name.

Yeah, I tried making an instance of it, but it gives me this error:

Code:

 error C2259: 'IExtractIconA' : cannot instantiate abstract class

I don't particularly want to get into COM... I just want to associate a file extension!