Arachnoid
18th January 2007 11:12 UTC

System.dll Problem calling dll
I've found the bug in my code it's in bold. Typical that you find the bug just after posting on the net.

I'm having problems getting a call to an external dll to work. I've looked at the docs and some examples seem to use 'C'style function calls and some use 'C++'style. I was trying to use:

Functionname (i r1, i r2) but that didn't work so i changed to Functionname(i,i)(r1,r2) and that seems to work better but i still don't get the expected data back.

System::Call 'dz_ez32::dunzstart() i .r0'
strcpy $1 0
strcpy $2 8
push $0
push $1
System::Call 'dz_ez32::setunzvalue(i,i,i) (r0,r1,r2)'
pop $1
pop $0
System::Call 'dz_ez32::getunzvalue(i,i) (r0,r1) i .r3'
messagebox mb_ok $3

dunzstart() is an initialising function that returns a session ID. r0 has a valid integer in it when the dunzstart routine returns.

setunzvalue should set property r1 of session r0 to r2
getunzvalue should return property r1 of session r0
the messagebox displays 0 as a result when it should come back 8.

Any help would be most welcome

Thanks

Russell