urif
asked on
using an object inside a console application
Hello there!
here's my problem:
i have a console application, in this app i need to use an object that one of the arguments in the .create is the owner. when you call this object from a normal GUI app you either pass a tlistview or a tmemo as the owners.
if i pass a nill pointer then it will crash and burn with a horrible exception, and if i change the code so it won't requiere this param then it won't work.
is there anyway i can pass an "owner" comming from a console application?
thx!
here's my problem:
i have a console application, in this app i need to use an object that one of the arguments in the .create is the owner. when you call this object from a normal GUI app you either pass a tlistview or a tmemo as the owners.
if i pass a nill pointer then it will crash and burn with a horrible exception, and if i change the code so it won't requiere this param then it won't work.
is there anyway i can pass an "owner" comming from a console application?
thx!
Unless you create a form first of course...
This 'clumsy' code will work though:
var m: TMemo;
begin
m := TMemo.Create(nil);
m.ParentWindow := GetDesktopWindow;;
m.Lines.Add('test');
writeln(m.Text);
m.Free;
end.
I don' see a reason why you want to do this..?
var m: TMemo;
begin
m := TMemo.Create(nil);
m.ParentWindow := GetDesktopWindow;;
m.Lines.Add('test');
writeln(m.Text);
m.Free;
end.
I don' see a reason why you want to do this..?
ASKER
i don't want to do this, but the code i need in inside a vcl component, and rewrite the whole code it's far more difficult
?
What about passing the application object?
GL
Mike
GL
Mike
Mike, that won't work because there's no window.
urif, I don't understand what you are trying to do. Console apps in VCL doesn't make sense to me.
urif, I don't understand what you are trying to do. Console apps in VCL doesn't make sense to me.
If I understand corectly a parent has to be a window, no? - but an owner is any TComponent descendant?
GL
Mike
GL
Mike
Yes, but that TComponent descendant has an owner too. Just try it: In a Console application, create a TListBox with nil as Owner. Then add an item to the listbox. It will crash.
i can't test it just now as I don't have access to a copy of delphi until tomorrow, but I would think you could do this:
memo1 := TMemo.create(application);
no?
GL
Mike
memo1 := TMemo.create(application);
no?
GL
Mike
No, that won't work. Crashes as soon as you try to add a line:
memo.lines.add('sometext')
Strangly enough
memo.text := 'somettext';
works ok.
memo.lines.add('sometext')
Strangly enough
memo.text := 'somettext';
works ok.
I wonder if it a drawing thing, or related to IStrings?. I would be tempted to guess the former. Perhaps urif's mystery object isn't bound so - after all he's coding a console app.
GL
Mike
GL
Mike
ASKER
well, thank you all, but you are going to the extreme here.
basically this is it:
i have a unit (pascal??? basic unit???) this unit has the code i need. this code on the create funtion has two paramaters, one is a boolean and the other an object where the rest of the code will save tje putput, this object according to the author is the owner.
this code happens to be a vcl component, that's all, no complications. sorry if i mis-explained.
now, i need to be able to use this from a console application.
any way?
thx!
basically this is it:
i have a unit (pascal??? basic unit???) this unit has the code i need. this code on the create funtion has two paramaters, one is a boolean and the other an object where the rest of the code will save tje putput, this object according to the author is the owner.
this code happens to be a vcl component, that's all, no complications. sorry if i mis-explained.
now, i need to be able to use this from a console application.
any way?
thx!
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ASKER
it might be worth a try
i'll let you know tomorrow
thanks
i'll let you know tomorrow
thanks
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