B4J Question Blank Screen

[davelt99]

I've created and compiled an app with B4J on a windows 10 laptop that works perfectly - displaying all objects.

When I move that same project to another windows 10 laptop and "Compile and Run" from the B4J menu, all I am able to see is a blank screen - the form with no objects.




Seems that all files are the same between the two laptops.

Any help is greatly appreciated.

Thank you

 

[stevel05]

Do you see any errors in the log?

 

[davelt99]

No, only log is "Program started." However, if I click on the bottom right portion of the blank screen - where the Exit button is but is not displayed - the ExitApplication closes the form.

 

[Daestrum]

form style 'UNIFIED' problem, maybe?

 

[davelt99]

Not familiar with that, what does that mean ?

 

[davelt99]

Included the frm.SetFormStyle("UNIFIED"), but form still displays blank.

 

[Daestrum]

Some computers (depending on graphics hardware} can have a problem if the form style is set to 'UNIFIED'
Try setting it to "DECORATED" to see if the controls become visible.

 

[Cableguy]

Not familiar with that, what does that mean ?

it mean that you should AVOID using "UNIFIED" style...

try "UNDECORATED"

 

[davelt99]

Now Works. "UTILITY","UNDECORATED" AND "TRANSPARENT" WORK.

"DEFAULT" and "UNIFIED" DON'T WORK.

Thanks very much for your help.

 

[Daestrum]

You can check if a machine supports UNIFIED by using

 Dim Platform As JavaObject
 If Platform.InitializeStatic("javafx.application.Platform").RunMethod("isSupported",Array("UNIFIED_WINDOW")) Then
 MainForm.SetFormStyle("UNIFIED") ' can use unified
 Else
 MainForm.SetFormStyle("DECORATED") ' use alternate style
 End If

 

[davelt99]

Thanks, I'll use that.

 

[atiaust]

Check this out:
https://www.b4x.com/android/forum/threads/b4j-v4-70-beta-is-available-for-download.72913/

Use of "UNIFIED" discontinued in B4J 4.70

 

[Erel]

It will never happen if you use B4J v4.70+.