[Info-vax] GKS : gopwk problem with VSI's version of GKS

[Joukj]

Paul Hardy wrote:
> Joukj <joukj at hrem.nano.tudelft.nl> wrote:
>> Hi all,
>>
>> I try to call GKS from a Fortran program. All worked fine with de "HP 
>> GKS". However when upgrading to "VSI GKS" I got problems initializing 
>> GKS. It looks like the call to GOPWK should be adapted:
>>
>> What always worked was:
>>    CALL GOPWK(1, 0 , GWSDEF )
>> It looks like the second parameter is not integer anymore in VSI-GKS but 
>> a character string (I get the error "Invalid representation of integer 
>> in translated string")
>>
>> I have no idea what to fill  in for the second parameter to get the 
>> default connection ID. The examples the installation stored on disk only 
>> show an integer parameter here.Who can get me a hint on how to call 
>> GOPWK in a proper way.
>>
>> I tried this on OpenVMS8.4-2L1 with VSI-GKS 7.3 (and HP-GKS V7.2 for 
>> reference) and VSI Fortran V8.3-104957-50Q83 running on IA64.
>>              regards Jouk
>>
> 
> In terms of the GKS standard, the second parameter must be an integer
> passed into GOPWK and is CONID the connection identifier - described as the
> channel that the operating system will use to communicate with the
> workstation - probably originally the Fortran unit number.
> 
> If VSI is expecting a string, then it’s a bug/ violation of standard.
> 
> 

If you google gopwk you find descriptions, both with integer and 
character-string as second argument.