Mattias Gaertner wrote:
On Mon, 15 Aug 2005 00:09:37 +0200
Marc Weustink <[EMAIL PROTECTED]> wrote:
Mattias Gaertner wrote:
On Sat, 13 Aug 2005 23:20:05 +0200
Tom Verhoeff <[EMAIL PROTECTED]> wrote:
On Sat, Aug 13, 2005 at 01:20:49PM +0200, Mattias Gaertner wrote:
On Thu, 11 Aug 2005 11:01:17 +0200
Marc Weustink <[EMAIL PROTECTED]> wrote:
Alexander Todorov wrote:
2. Why can't multiple forms of the "same name" be created?
Delphi has no problems with this.
In delphi the two forms are not with the exact same name. At work we
have an application with many forms that can be opened many times.
When TfMyForm is opened for the firms time its name is fMyForm
(suppose you named it this way in OI). The second time its opened
(e.g. obj := TfMyForm.Create) it has name something like fMyForm_1,
the third fMyForm_2 and so on.
I think when creating form dynamically Delphi automatically adds
numbers after the name to prevent errors. This is at least what i
have seen.
DUH.... I've never noticed this. I tried it with Delphi 6 and indeed,
the name is postfixed with _i
Think we need to implement that.
Implemented.
I updated my Lazarus to rev. 7497 and rebuilt all. But the attached
project still fails for me. There are two buttons: each create an
instance of TMyForm. That form shows its name. The second creation
still fails.
Can someone confirm that the attached project works on another platform
(I use powerpc-darwin)?
In my application-being-ported-from-Delphi, I do notice some difference,
because the error message Duplicate Name, now shows a postfix _1
(but not on all failing occasions).
You create the two forms with Owner Self (=MainForm).
This is not allowed. The components of a form must have unique names or
none.
Create with Owner 'Application'. This will auto rename the forms.
This is not the same as in delphi.
There names are fixed in TReader.ReadRootComponent which uses
FindGlobalComponent (which looks in Screen.Forms). This is independent
of the owner of the form
I don't know, why the Screen forms must have separate names, but
nevertheless: implemented.
Separate names ????
All created froms are "registered" with the screen object, so it knows
all forms and thus all names.
Marc
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