Hello Hugo,

 hl> time to show the screen.  The latter you could offload 
 hl> to another thread (to be unblocked by a muxwait event 
 hl> on input or time out and so).  But then this quickly 
 hl> becomes complicated too:-)
Uhm, yeah...


 hl> Otherwise you'll have to reinvent something like PM: each window gets a 
 hl> message when it must recalculate it's visible portion 
 hl> because a change in the window ordering (or you do it 
 hl> for them in one sweep: starting with the top window, 
This is what I have done. Everytime there is a background window write I
fill in a matrix (representing the screen). Starting from the bottom window
to the top window I write the identifying (byte) number to the matrix. Then
when the window requests a write to the screen (and it's background) it has
to compare every character it wishes to write to the cooresponding location
in the matrix. And if the Id matches then it owns that part of the screen.
        This idea came from (damn lost his name), someone else in this echo.
Any updates to the current window need not check the matrix, so this is much faster.
        At times I feel like I'm writing a text mode PM .
                        Paul Rider.

--- Maximus/2 2.02