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Mailing lists / fpc-devel / 2006-06

What is the meaning of this error Message ?

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ik

Hi,

I'm trying to translate the following error message:

parser_e_ill_msg_param=03144_E_Message handlers can take only one call by ref. parameter
% A method declared with the \var{message}-directive as message handler % can take only one parameter which must be declared as call by reference % Parameters are declared as call by reference using the \var{var}-directive

And I can't seems to understand it's meaning. Can you please explain it to me ?

Thanks,

Ido

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Vincent Snijders
to ik
ik wrote 14 lines
Hi, I'm trying to translate the following error message: parser_e_ill_msg_param=03144_E_Message handlers can take only one call by ref. parameter % A method declared with the \var{message}-directive as message handler % can take only one parameter which must be declared as call by reference % Parameters are declared as call by reference using the \var{var}-directive And I can't seems to understand it's meaning. Can you please explain it to me ? 
Correct:
   TTest = class
   private
     procedure CMTest(var Msg: TMessage); message CM_TEST;
   end;
Incorrect
     procedure CMTest(Msg: TMessage); message CM_TEST;
or
     procedure CMTest(var Msg: TMessage; i: integer); message CM_TEST;

etc.

The signature of a message handler is fixed.

Vincent

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