Multiple instances of window open in memory

[Richard O.]

When I open up a window it appears multiple times in memory and other times
it does not. I think this is causing my application to crash when I try to
close the window. The code looks something like this.

for i= 0 to n

open(w_1) //Some times opens two instances or more in
memory.

w_1.openuserobjectwithParm(iu,.....)

if isvalid(w_1) then close(w_1) //Closes all instances
but eventually the application crashes at this
point

next

[steve_katz_[teamsybase]]

>>When I open up a window it appears multiple times in memory and other
times it does not. I think this is causing my application to crash when I
try to close the window. The code looks something like this.

for i= 0 to n

open(w_1) //Some times opens two instances more in
memory.
w_1.openuserobjectwithParm(iu,.....)

if isvalid(w_1) then close(w_1) //Closes all instances
but eventually the application crashes at this
point
next
<<

Take a look at Syntax 1 AND Syntax 2 of the Open() function and see which
one you actually want to use.

Syntax 1 will only EVER open one instance of the windowtype. Subsequent
calls will only activate the window.

Syntax 2 will allow mulitple instances to open and subsequent calls will
open additional instances.

steve
[TeamSybase]