Hi, relitivly new to the wonderful world of perl (4 weeks to be exact),so this may well be a stupid question, feel free to point this out at your leasure. Anyway, to the matter in hand: I am using win32::ole::variant to set up a 2 byte signed variant variable

i.e. 
my $registerIndex = Win32::OLE::Variant::Variant(Win32::OLE::Variant::
+VT_I2|Win32::OLE::Variant::VT_BYREF,0);

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This variant is needed as i call another program, that i use to communicate with the parallel port (program is called v2wReg, and i think it is exclusive to the company i am doing a summer placement for, but could be mistaken), and in its documentation it dictates that i MUST pass a variant into it in order to read from the register the parallel port is connected to.

The documentation looks like this -: 

VARIANT ReadRegisterNoWrite( LONG nDevLocation,VARIANT* nIndex,VARIANT
+* nValue,VARIANT*
  bAutoIncrement);

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Thus indicating which variables go where. I know that the first two variant variables will return 1 byte and the autoincrment variant will return 1 bit.

No matter what i pass into the function ReadRegisterNoWrite i get no return (i.e. nothing happens to the variables that i pass in) and the same error (only with 'use warnings;' in my code though) of: 

Win32::OLE(0.1501) error 0x80020005: "Type mismatch" in METHOD/PROPERT
+YGET "ReadRegister" argument 3 at trial.pm line 49

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I am totally stumped as to how to avoid this error and get a good reaading from the register so any light anyone one of you monkees could spread onto this problem would be much appreciated.

cheers.

The SleepingMonk

p.s. if it helps any I am using i2c to talk to the register at the parallel port. (v2wReg is a program that allows perl to communicate with i2c devices)

update (broquaint): added <code> tags

In reply to WIN32::OLE::VARIANT --- the destroyer of souls ??? by SleepingMonk

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