How To Fire Rap ppVariable Without Printing Report

rbuser

Hello All:

RB 6.01/Delphi 5. Our reports are one record/one page reports with a few
variables. We have successfully created an "Alternative Raw Print" method
for directly printing to Dot Matrix printers. We simply pull the Datafields
out of the report, format them, and mix them with our printer escape codes.

PROBLEM: We want to get the text out of the ppReport Variables. We want
to do this without calling ppReport1.Print. Our current solution is as
follows:

lDevice := TppDevice.Create(Self);
lDevice.PageSetting := psLastPage; // See ppTypes
lDevice.Publisher := ppReport1.Publisher;
ppReport1.CachePages := True;
ppReport1.PrintToDevices;


Is it possible to directly fire the ppVariable calculations themselves
without doing the above ( If so Can you provide an example ) ??? DO you have
any suggestions on the above ???



Thank you.


Neil Huhta

digitalmetaphors

After looking at the source, you'll have to create the TppVariable
descendent, THuhtaVariable, which overrides the function Printing so that it
always returns true. This is necessary because, in the method
TppVariable.Compute, there is an exit to check if printing. If it is
printing, then it will trigger the private OnCalc method. The only
downside, is that all of your templates will have to be modified to use
THuhtaVariables.


Cheers,

Jim Bennett
Digital Metaphors

digitalmetaphors

I forgot to clarify, that the public method which triggers the OnCalc, is
the Variable.Compute method.


Cheers,

Jim Bennett
Digital Metaphors