Externs other than "win32"

Hi, how can I find other Windows API functions that don't appear to be in Win32? For example, I want to extern this:

GetSecurityInfo

Which MSDN says this about:



So how can I extern that please? I tried using Extern "Advapi32.lib" and "Advapi32" and "Aclapi.h" and "Aclapi" but Max just says "Unrecognized calling convention 'advapi32.lib'".

So I went to my MinGW folder and did a find in files search for GetSecurityInfo and found it was in aclapi.h and libadvapi32.a. So I tried externing these with and without the extension, but to no avail. Help!

Also what would happen on a 98/ME machine as it seems that function doesn't exist? Is it safe to have the Extern providing that I don't actually call the function (by detecting what OS I'm running first), or will the actual Extern fail.

Thanks in advance for any help.

You use Import "-l" to link libraries, eg. Import "-ladvapi32". Extern "Win32" makes the functions usable by the Blitzmax code, from what I can tell the "Win32" means the stdcall calling convention.

OK thanks. However, I did this:

Import "-ladvapi32"

Then later on I called GetSecurityInfo in my code and the IDE says "Identifier 'GetSecurityInfo' not found" when I compile so I guess it didn't work :-(

Simple example:

Import "-ladvapi32"

Print GetSecurityInfo(Null,Null,Null,Null,Null,Null,Null,Null)

I'm really a complete noob at this so if anyone can help I'd really appreciate it.

You've still got to use Extern "Win32" to make the function visible to BlitzMax.

code removed, beat by Azathoth :P

this might be of use to you also, gives a list of api calls and there '.dll' location.

http://www.activevb.de/rubriken/apiviewer/index-apiviewereng.html

Azahoth. I see, OK I'll try.

Meanwhile I tried this:

Local advapi32 = LoadLibraryW ( "advapi32.dll" )
Local GetSecurityInfo(Handle:Int,ObjectType:Int,SecurityInfo:Int,..
	ppsidOwner:Byte Ptr,ppsidGroup:Byte Ptr,ppDacl:Byte Ptr,ppSacl:Byte Ptr,..
	ppSecurityDescriptor:Byte Ptr) = GetProcAddress ( advapi32, "GetSecurityInfo" )
Print GetSecurityInfo(Null,Null,Null,Null,Null,Null,Null,Null)

And it return a value so something is working...

Kev: Thanks, looks useful.

the value returned is 6, the error code for 'The handle is invalid.'

i have a little gui util that will tell you any error codes returned when making an api call.

clicky
http://www.winblitz3d.co.uk/ErrorShow.zip

kev

Hey neat little app, cool! Yeah I know that 6 means that, it's because I'm passing in a null handle, I have some other code that gets a valid one.