Any way to use transparency in SCREEN 0?

[madscijr]

That's not possible, as QB64(PE) supports only one physical window per program. However, as finally the contents of a window is just an image, and we can create as many images as our memory allows you could simply go a master/slave approach.

You have a master program which creates and manages the images and react to inputs and a slave program which can be run multiple times . . .

Thanks for the explanation! The master/slave thing is too complicated for me, so it doesn't work.

It's isn't THAT complicated, because your child windows only do one thing: display whatever the parent tells them to. If you look up my multi-mouse Pong, that uses multiple QB64PE programs in a similar parent/child setup where one sends info to the other using TCP/IP. This same system could be used to have a QB64PE program that displays different stuff in multiple displays, i.e., a multi-monitor setup.

However, I went back to your original post

Can one define windows in QB64 that are stacked on top of each other but completely independent of each other?

and I think what you are looking to do doesn't need multiple QB64PE programs.
Instead, you can define "virtual" windows by simply declaring an array of images and coordinates and z-order,  something like:

Code: (Select All)

Type VirtualWindowType
    image as Long
    x as Long
    y as Long
    z as Long ' zorder (for stacking windows, higher values are on top of lower values)
End Type
ReDim arrWindow(1..5) As VirtualWindowType
Dim index%
For index% = 1 to 5
    arrWindow(index%).image = _NEWIMAGE(320, 240, 32)
    arrWindow(index%).x = index% * 10
    arrWindow(index%).y = index% * 10
    arrWindow(index%).z = index%
    _DEST arrWindow(index%).image
    print "WINDOW #" + _TRIM$(STR$(index%))
Next index%

screenImage& = _NEWIMAGE(800, 600, 32)
screen screenImage&

'have your program do its thing, including manipulating windows:
'update window contents for each image handle (.image attribute),
'move windows around by changing .x , .y attributes
'move windows forward or back by changing .z attribute

'then to display,
'first sort arrWindow in order of .z attribute,
'then do something like
_DEST screenImage&: CLS , _RGB(255, 255, 255)
for index% = 1 to 5
    _PUTIMAGE (arrWindow(index%).x, arrWindow(index%).y), arrWindow(index%).image, screenImage&
next index%
_DISPLAY

'^^^and so you display "windows"
'   that can be placed in front of one another
'   in whichever order you like

...(program continues)...


'then at the end of your program, do cleanup:
screen 0
_FREEIMAGE screenImage&
For index% = 1 to 5: _FREEIMAGE arrWindow(index%).image : next index%
_AUTODISPLAY