GUID code for 32bit to work with 64bit also

**BJ5352** · 05-23-2013, 08:38 PM

Hi All,

I have some code that has been working very well at our work place. The problem is some of the PC's have been upgraded to 64bit and on these PC's the code gets the following Complie error message

"The code in this project must be updated for use on 64-bit systems. Please review and update Declare statements and then mark them with the PtrSafe attribute."

The code is below and I need it to be able to work on both 32bit and 64bit machine's is this possiable?

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Thanks in advance.BJ

**abousetta** · 05-23-2013, 09:17 PM

Hi,

Try this instead on all machines (32 and 64 bit):

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Some functions that work in 32-bit environment just don't work in 64-bit environment so you will have to test.

abousetta

**BJ5352** · 05-24-2013, 01:20 AM

Thanks abousetta,

Sorry but this didn't work. The first section caused an error on a 32bit machine and the second bit caused an error on a 64bit machine.

Any other thoughts?

BJ5352

**Leith Ross** · 05-24-2013, 02:07 AM

Hello abousetta,

The Windows 64 bit return value of CoCreateGuid is actually a handle to the error code returned by the RPC function UuidCreate. All handles and pointers for Windows 64 bits systems should be declared as LongPtr instead of Long.

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**BJ5352** · 05-24-2013, 03:36 AM

Hi Leith,

This code was originally yours I got from a forum two years ago, its been great.

Your suggestion worked on the 32bit machines. The the second line goes red on the 64bit machines but does not create an error. I'll check on another machine on monday.

Thanks agian for you help.

BJ5352

**abousetta** · 05-24-2013, 06:59 AM

Thanks Leith. You're right, syntax is everything. I just spent the night fiddling with Windows API in order to use keybd_event instead of SendKeys. Glad you picked up on this thread. I'll leave the remainder to your capable hands.