A window tiler?

General
1

I need to write and application that can find out which windows are open on my MAC.
Give that list I need to position and size my windows.
Any help in the form of APIs Xojo can access would be apprecieated.

Something that comes to mind though is how could I ‘invoke’ this application feature to do so.

TIA!
B.

2

or windows…

3

There are APIs in Windows to know which windows are displayed (all apps), and with their handle one can move them with SetWindowPos(). I have not worked on that for a couple years, so I don’t remember off hand what are the system calls. At any rate, this is quite possible.

I believe GetNextWindow() can tell you that.
https://msdn.microsoft.com/en-us/library/windows/desktop/ms633499(v=vs.85).aspx

GetTopWindow() gets the handle of the front window. You get that one and iterate down to the lower windows in the z-order with GetNextWindow.