64bit version fails

[David Wilbourn]

I have been trying to use the 64bit version of GIQ.dll with the example Delphi app but I get a Range Check error when I try to load the DLL.

I have tried various versions of the DLL (101b, 101d, 101e) with the same results. The 32bit version with the same code (compiled as a 32bit app) works fine. I have tested it with Delphi 11 & XE3, in Windows 10 & 11.

[Paul Michell]

I don’t have Delphi to test this with. Can you call the DLL from FreePascal 64bit? If you can replicate the problem with FPC I will be able to investigate it for you.

[David Wilbourn]

I’ll have a look - but I have found that it does work when I use it in my main (commercial) app - in some circumstances. Trying to see what makes it work in one complex app but not in a simple one

[David Wilbourn]

Found it, simple error - as always. The 32 bit version of the DLL expects a cardinal for the DLLHandle. The 64bit version needs NativeUInt.