Switch between forms - cannot understand how to make
lazarus / 9-Editor

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Paul-SFL · 2011-09-23 21:20

Hi all  .

I'm a student, a newbie in Lazarus and OOP - the only thing I learned
before is Turbo Pascal.

Now I'm working or yearly project, it's a small program that emulates
a simple processor and additionally calculates great numbers' sum and
difference.

The thing is that I'm writing it for Windows - I never did it before .
The project consists of two forms, one is the emulator and another is
the calculator.

I created forms themselves, but stumbled on writing code for a switch
between these forms. I googled and looked through different forums,
and wrote some piece of code that simply destroys current form and
calls another one, but I feel that code is far far from what I need  .

To perform switch user must click main menu "Navigation" item (caption
is "Навигация") and select there another mode (captions are "Эмулятор"
and "Калькулятор").

As far as I understand, an algorithm is something like:

User selects another mode under Navigation item.Current form is
destroyed.The second form appears where the previous one was.
I'm not sure it's right..

I would be glad if someone explains me how to implement the switch or
tell me where I can find some manual and examples  .

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Blaazen · 2011-09-23 21:30

Quote1) User selects another mode under Navigation item.
2) Current form is destroyed.
3) The second form appears where the previous one was.
ad 2) I think you don't need destroy current form. Hide is enough.
(Form1.Visible:=False;)
ad 3)
Code: [Select]Form2.Left:=Form1.Left;
Form2.Top:=Form1.Top;
Form2.Show;

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Paul-SFL · 2011-09-23 21:43

Wow, so simply  ! Thank you Blaazen.