tsplitter | Thai word break written in GO | Internationalization library

For example: I have a TFrame (called TPageFrame) that has a number of controls, e.g. TreeView aligned Left, splitter, and main clientarea consisting of an edit and RichEdit, as in image below:

Code looks something like this:

I´m designing a new VCL component using a set of existing TControls. The controls are placed on TPanels, some aligned to left position, one to the right position and finally one to the client area. Each of those panels has the customized component as it´s parent.

I need to place splitters between the panels, in order for the users to be able to resize the inner components.

The problem is, I simply can´t figure out the logic applied to the positioning of the splitters when created at runtime.

I visited quite a number of forums, each pointing to a different solution, but none of them worked.

Tried to:

1 - when creating the splitters, use the properties "lef"t and "width" of the component where it should be positioned aside, as its "left" property.

2 - Use the left property to assign the position where it should be.

and some others I can´t remember.

What am I missing?

In the code below, the splitters abre being created where it should be. Just after the corresponding panel, and theirs left property corresponds to the last thing i´ve tried (it´s position).