Hi All,
I am writing to similar applications, and want the "child" app to use some of the units of the parent app. If the units for the child app are in a different directory from the parent app, what's the best way of using an "include" in the child app?

Hope that makes sense?

Thanks

Richard
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Le 07/08/2013 07:29, Richard Mace a ?crit :

Definitely yes. I'm used to create as much as needed source lib folders to store units common to more than one project. Folder's hierarchy depends on projects hierarchy. For example:
root
lib
group1
lib1
project1
project2
group2
lib2
project3
project4

projects 1 & 2 share untils in lib1. Same for projects 3 & 4 with lib2 But project 4 and project1 can share units within lib. When importing a unit in a project from a foilder ouside of the project's one, Lazarus proposes to insert the new source folder into the project's search path. So it's very easy.

Antonio.

It's all about object inheritance. You would just create your objects in a unit file. Have all the methods organized as a TObject. Then you just create an instance and use it.

Forms have inheritance too. You can create an instance of a particular form. But the principal is the same.

To include the file to use it ... Add the unit file to the uses section of the unit.

Le 07/08/2013 13:38, Richard Mace a ?crit :

Thanks for the reply. In Lazarus, how do you include the unit?

Very simple: open the project option (Ctrl+F11), look in COmpiler Options then Paths. Fill in Other unit files as appropriate. Have a look into http://wiki.freepascal.org/IDE_Window:_Project_Options

Antonio.