forum.datacad.com

Hi,
the statement
results in 'left side cannot be assigned to.'
I had a quick look through the AEC_MODL samples which uses
rubln^:=true a pointer; but I am too lazy to wade through the logic.
UInterfaces.pas lists rubln as Function rubln:boolean; stdcall; external AppName 'GetSetRubln';
Any advice.
Thanks
Rod Walker

Rubln and Rubbx are functions which returns pointer to a boolean. To access the value, you must use dereference this pointer for boolean type and thus you have to use ^ notation. Your Uinterfaces.pas seems to be wrong, the correct declaration should be as follow:



Yours define as a boolean whereas it should be PBoolean. If this is the case I would suggest you to get the header files again from http://www.datacad.com/ddn/downloads/DCAL%20for%20Delphi.zip

Using pointers this variable directly interfaces with the variable that is internally used in DataCAD.


Hope this helps.

Hi,
I am using Delphi 4. When I initially installed Dcal for Delphi I had error messages about pboolean being undefined (or something like that), so I changed pboolean to boolean.
I will download latest version and try again
Thanks
Rod Walker

if pboolean is undefined in your Delphi 4, you can add the following to URecords.pas



immediately after the declaration "type".

Thanks Devinder,
added pointer as you advised. System working.

Rod Waker