Open Form button on UWL is disappers, after changing the XMLs

Question

HI Frndz,
We created a custom UWL(workbench) by creating uwl.standard.hr(from uwl. standard.xml),and when the workflows are triggered Items are not coming to our custom UWl , but these are coming fine to standard UWL.
So i added the WF ITEMS into uwl.standard.hr manually and uploaded, now the items are coming to custom UWL(workbench), but when we click on Items these are not launching WDP application, this is the same case in standard UWL also.
I came to know that when am adding the WF items to uwl.standed.hr than only OPEN FORM button is disappearing in custom and standard UWL also.If i delete these added entries in uwl.stranded.hr than standard UWL items are lunching well.But WF items are not coming to workbench(custom UWL).
Plz suggest us.
Regards
Rajesh

Answer 1

To be honest, I have only grasped < 100% of your message in detail, but...: Windows that have a parent<->child relation must be running in the same thread. In addition, after closing a modeless window, you must not use it anymore. Instead, create
a new instance.
What happens if you do not create a new thread but instead open the child in the same thread (which is obligatory)? You wrote it doesn't work, but I don't know why?
"First I have to declare the child window as a global variable".
How do you define "global"? Normally this is a variable in a Module declared with the scope Public or Friend. But I guess you mean a field of the Form (a variable at class level in the Form).
"I need to be able to send messages from the main window to the child window so that the child window displays the volume."
Why does the main window has to send the messages? Can't the child window handle the device's messages itself?
"I need to run the child window using a separate thread as both windows need to be able to process commands."
Process commands from the device, or commands from the user operating the Forms?
Armin