_DEST, _PUTIMAGE etc.

[krovit]

A warm greeting to all of you,

With some QB64 commands I have problems. Maybe it's up to me... I can't understand them...
For example the management of _DEST destinations in combination with _PUTIMAGE.

These days I have taken over a Ritchie's library for the dropdown menu (a fixed idea of ​​mine... but strongly necessary) and I modified it a bit to adapt it to my needs.
It took a long time because, I think we will agree, changing the code of others is not easy.
I made the menu look a little more modern and current (in my opinion) and I would like to share it with you.
Nothing important, for heaven's sake... the bulk of the work is all by the author.

One of the changes introduced consists of one pixel line below the menu.
I don't know how to coordinate it with the rest of the code. In practice, when you deactivate the menu that disappears but she remains there in plain sight.

In truth I could also do without it... obviously there are other systems to restore the original screen, but the code would not be clean and there is this bug that annoys me a lot.

The library makes extensive use of _DEST and _PUTMAGE and as I said I can not fully understand the operation of these commands.

For example and to start could you complete this code?

Code: QB64: [Select]

1.  
2. 'one screen... _DEST etc.
3.  
4. for f=1 to 10: print f: next f
5.  
6. sleep: cls
7.  
8. 'another destination... _DEST etc.
9.  
10. for f=100 to 110: print f: next f
11.  
12. sleep: cls
13.  
14. 'now I would like to see the result in the first destination and then in the second
15.  
16.  

Thank You!

[Petr]

Code: QB64: [Select]

1.  
2. 'one screen... _DEST etc.
3. first = _NEWIMAGE(100, 200, 256)
4. second = _NEWIMAGE(100, 200, 256)
5.  
6.  
7. _DEST first
8. FOR f = 1 TO 10: PRINT f: NEXT f
9.  
10. REM SLEEP: CLS 'without REM is then this screen black
11.  
12. 'another destination... _DEST etc.
13.  
14. _DEST second
15. FOR f = 100 TO 110: PRINT f: NEXT f
16.  
17. REM  SLEEP: CLS
18.  
19. 'now I would like to see the result in the first destination and then in the second
20.  
21. SCREEN first
22. SLEEP
23. CLS
24. SCREEN second
25.  
26.  

For reading pixel values (POINT) use _SOURCE so, as _DEST. Is possible reading other screen, than is visible and wrting to other screen than visible :)

[Cobalt]

_DEST - What image\screen commands like PRINT, PSET, LINE, POINT, GET , and PUT work upon.

_PUTIMAGE (X_Destination, Y_Destination)-(To_X_Destination, To_Y_Destination), Source_Image, Destination_Image, (X_Source, Y_Source)-(To_X_Source, To_Y_Source)
    Works like Get and Put at the same time

This is a little more involved than your PRINT to 1 , Change , PRINT to 2, Show 1 then Show 2. but covers the same and shows _PUTIMAGE use.

Code: QB64: [Select]

1. SCREEN _NEWIMAGE(640, 480, 32) 'Main screen
2. A& = _NEWIMAGE(640, 480, 32) 'Secondary screen
3.  
4. LOCATE 1, 1 'you will see this right away...
5. PRINT "You can see me right now!"
6. LINE (50, 50)-STEP(49, 49), _RGB32(212, 64, 8), BF
7.  
8. LOCATE 20, 1
9. PRINT "PRESS ANY KEY if you do NOT see a BIG colored circle"
10.  
11. _DEST A& 'set the destination for the following commands to Secondary screen
12.  
13. LOCATE 2, 2
14. PRINT "YOU CAN NOT SEE ME UNTIL I HAVE BEEN COPIED BY _PUTIMAGE"
15. CIRCLE (320, 240), 128, _RGB32(8, 212, 192)
16. PAINT (320, 240), _RGB32(8, 212, 192)
17.  
18. _DEST _DISPLAY 'now set it to the main display agian
19.  
20. DO: _LIMIT 30: LOOP UNTIL INKEY$ <> ""
21.  
22. _PUTIMAGE (0, 0)-STEP(639, 479), A&, _DISPLAY, (0, 0)-STEP(639, 479) 'copy the material from the Secondary display to the main.
23.  
24.  

[TempodiBasic]

Hi Krovit
here a good example posted by Steve https://www.qb64.org/forum/index.php?topic=2124.msg113664#msg113664

[krovit]

Thank you, Petr, Cobal e Tempodibasic, finally a little light...

The 3D reported, moreover, is a mine of information.

I have not yet managed to solve the problem (there must be something in my code that conflict with Ritchie's library for the dropdown menu, or vice versa). But the documentation is a good track. I'll see how to move forward.



____
Tempodibasic... I recommend, don't expose you.

[TempodiBasic]

thank's krovit
I'll say the same to you and I must say moreover that my life has done little changes because I already live among job, home and church. ;-)
What is different is the mask, the distance between persons, the absence of handshakes.