I wanted to make a universal formula and put it in the Shared Computed For Display (CFD) Field $hf_WindowTitle (inherit to all databases), and that it was calculated at the opening of the Form.
$hf_WindowTitleDoc - CFD-field that contains a formula for a specific form.
The sequence of fields: Form -> $hf_WindowTitleDoc -> $hf_WindowTitle.
This design does not work, because now in the Window Title formula you can use the field values only saved document or a static constant values.
Please, make a calculation WindowTitle-formula after miscalculation fields on the form, for example it could be done somewhere in between QueryOpen and PostOpen. Values CFD-fields appear in the document on PostOpen, but the document on the screen is not visible, ie to implement this dynamic Window Title can be without problems.
Old name for this idea: "Set to Window Title forms calculated after a miscalculation fields when loading Forms"