Again: C to PB

[Peter Lameijn]

C just keeps on amazing me... I'm translating SetupApi.h and found some items I'm
uncertain how to translate.

SetupDiGetSelectedDriverW(
    IN  HDEVINFO           DeviceInfoSet,
    IN  PSP_DEVINFO_DATA   DeviceInfoData, OPTIONAL
    OUT PSP_DRVINFO_DATA_W DriverInfoData
    );

The IN and OUT, are they of any use, or purely informational?
(I presume OPTIONAL is what it says to be, although the C docs says that a parm can only be
optional if its the last one, or the rest is also optional...)

Is there any difference between those 2 defines:

#define SPDRP_HARDWAREID                  (0x00000001)  // HardwareID (R/W)
#define DIREG_DEV                          0x00000001   // Open/Create/Delete device key

Maybe there already is a translation of the SetupApi header somewhere? Would save me a C++ headache

------------------
Regards,
Peter

[This message has been edited by Peter Lameijn (edited December 11, 2003).]

[Don Dickinson]

i am guessing, but it would be my guess that IN, OUT, and OPTIONAL are macros.
can you find the definition for them somewhere?

--don

------------------
Don Dickinson
Author of ddoc Print and Preview A dll-based print-preview engine for windows
www.greatwebdivide.com
Author of Tsunami Tcp Data Server
http://ttds.greatwebdivide.com

[Peter Lameijn]

Thanks, I'll see what I can dig up. Got additional one:

typedef PVOID HSPFILEQ

Is this equal to:

Dim HSPFILEQ As Dword

------------------
Regards,
Peter

[Russ Srole]

Peter,

I don't know if this applies, but I read up on RPC and IN and OUT were macros for an intermedia compiler to let the RPC server/client know whether to send or recieve (or both?) a variable across the network. The idea is, if a variable is set by the remote procedure then you don't have to send it. Also if the variable is byval then you don't have to return it.

Russ Srole

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[Raymond King]

Hi Peter,

You will find these defined types IN OUT OPTIONAL in WinDef.h

[CODE}
#ifndef IN
#define IN
#endif


#ifndef OUT
#define OUT
#endif


#ifndef OPTIONAL
#define OPTIONAL
#endif
[/CODE]

IN means the parameter is an input parameter.
OUT means the parameter is an output parameter.
OPTIONAL means that the parameter is optional.

They also use these in defining functions in the .tlb files.

Hope this helps

Enjoy
Ray

P.S.
But as you can see the defines are not assigned any values, now how
would you tell PB this?

------------------
Raymond L. King
Custom Software Designers.

http://www.csdsoft.com
mailto:[email protected][email protected]</A>



[This message has been edited by Raymond King (edited December 11, 2003).]

[Tom Hanlin]

They are defined as nothing... which you can readily enough implement
in PowerBASIC by the simple expedient of leaving them out.

------------------
Tom Hanlin
PowerBASIC Staff

[Raymond King]

Thanks Tom,

I was wondering if that would work thanks again. Like always your
here to answer our questions.

Enjoy
Ray


------------------
Raymond L. King
Custom Software Designers.

http://www.csdsoft.com
mailto:[email protected][email protected]</A>