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I'm using Delphi 7 Enterprise and I've finally tracked
down why some properties that can be changed in the object inspector don't have
any effect. I’ve written a component
that contains a real Published Property X of type REAL: - X is initialised in the
Constructor to +1 - I change X to ZERO using the
object inspector - I run the program and find
that X still has its initialised value (+1) AAARGH - it's taken quite a
while to find out why and it's (as usual) a single line buried in the help: "STORAGE SPECIFIERS" "For Reals, pointer and
strings there is an implicit default value of ZERO" And it seems the values aren't
streamed from the object inspector into the .DFM file unless they differ from
the ASSUMED default (which is to be ZERO but in my case is actually +1 !!! To me this seems like a
definite bug - you change a value in the Object Inspector at Design-time but it
doesn't make it to the .DFM file and has no effect on the executable. Setting STORED on the Property
line doesn't help and for Reals you can't specify a DEFAULT value). Has this been fixed in later versions
of Any suggested work-arounds (such
as storing 1E-8 instead of zero). This component has several sets of X/Y/Z coords
and I really don’t want have to maintain another a dozen tiny procedures
each of which changes zero to 1E-8 … Thanks Giovanni ===================================================================== Giovanni Moretti
| Senior Lecturer
| Computer Science
| Ph 64-6-3505799x2474 =Fax 64-6-3502259 == ZL2BOI ===================================================================== http://www-ist.massey.ac.nz/moretti
mailto:[EMAIL PROTECTED] |
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