Re: Best way to drag and drop ?


"TJeanneret" <tjeanneret@xxxxxxxxx> wrote in message
news:454216d2$0$5078$ba4acef3@xxxxxxxxxxxxxxxxx
Hello Everybody,

I am designing a GUI that works mainly by dragging/dropping "clever"
objects. I am seeking the "best way" to implement it by using Delphi.
Could someone give me any clue on the most efficient way to handle between
500 - 1000 objects on the interface, allowing the user to chose one and
act on it ?
I don't know :
- How I can make my obects appear on the interface (are they individually
drawn, or everything is it implemented in some "draw" method ?)
- How an object will know when it will be selected and moved (the OnDrag
/drop methods ?)

Thanks in advance for any bit of info,
Thierry


Read the help about drag and drop. It's quite simply really.

I am not sure how it will perform with thousands of objects on the screen.

Any gui would probably slow down quite a lot.

Anyway components also have some properties which can be set to make them
auto accept other objects.

Can't remember the property name at the moment, I am sure you ll be able to
figure it out real fast ;)

Play around a bit to figure out how it works on a small scale and then try
it on a big scale ;)

Bye,
Skybuck.



.

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