>What is an fancy way, to detect in my form init that this form does not already run?
>So i want to be sure of a single instance of my form.
>
>Thanks in advance,
>
>Bjorn

Bjorn, in general you need to loop through the _screen.forms collection and see if the form with the same form.caption already exists. Then you decide what to do - for example you may actvate that form. Many frameworks have the Form Manager object which takes care of all running forms (and has it's own array of running forms). There may be variations with checking - you may check for .caption, .name or SCX name of running form. It depends on the needs of your application if multiple instances of the same form are allowed. The form may have the property .lAllowMultiInstance and the Form Manager will check it before running. When you allow and run another copy of the form you may add something to its caption to distinguish them - like "My Form Caption -[2]"