QB64 unable to load image, saying "illegal function call"

Question

im trying to load an image for my game title instead of ASCII, but when i try to load the image, it says that _PUTIMAGE, i&. 0 is an illegal function call. Does _PUTIMAGE,i& not work for certain file types?

I've tried all the ways the built-in help suggest i load an image, but none of them work.

menu:
CLS
PRINT
i& = _LOADIMAGE("FOrest.jpg")
_PUTIMAGE, i&
PRINT ""
PRINT "What Will Your Heros Name be?:";
Name$ = Ask$(5, 1, CSRLIN, POS(0), 11, 0)
CLS
check_1% = 0 'placeholder for debugingg
COLOR 15, 0
PRINT Name$ + "How Old will Your Hero be?: ";: age% = VAL(Ask$(3, 0, CSRLIN, POS(0), 15, 0))
'INPUT "", age%

i want this image to be loaded

score 2 · Answer 1 · answered Apr 16 '19 at 14:58

2

The sourceHandle& and destHandle& cannot be the same or an Illegal Function Call error will occur

Try specifying an explicit destination handle. You want the screen so select 0.

method 1

i& = _LOADIMAGE("forest.jpg")
_PUTIMAGE , i&, 0

method 2

i& = _LOADIMAGE("forest.jpg")
_SOURCE i&
_DEST 0
_PUTIMAGE

It would be best if you verified if loading the image was successful. Check if i& is less than -1.

Did you at least setup a graphics screen for your .jpg picture?

SCREEN 13
i& = _LOADIMAGE("forest.jpg")
_PUTIMAGE , i&, 0

answered Apr 16 '19 at 14:58

Sep Roland

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@Sep_Ronland i havent verified its loading but i will do that and eply, thank you for the help i will see if this will work for me – Patrick Coots Apr 17 '19 at 19:00
1

how would i check that `i&` is -1? – Patrick Coots Apr 17 '19 at 19:02
Returns -1 as an invalid handle if it could not load the image. Valid LONG handle returns are less than -1. – eoredson Apr 18 '19 at 00:56
the check for seeing if `i&` is -1 doesn't work for some reason says `illegal function call` – Patrick Coots Apr 22 '19 at 15:17

score 1 · Answer 2 · answered Apr 16 '19 at 18:24

1

Are you in SCREEN 0 or in a graphics mode?

answered Apr 16 '19 at 18:24

Fellippe Concolato Heitor

59
2

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im using `SCREEN 12` – Patrick Coots Apr 17 '19 at 19:07

score 1 · Answer 3 · answered Apr 22 '19 at 15:42

1

doing

SCREEN _NEWIMAGE(640, 480, 32) 
i = _LOADIMAGE("FOrest.jpg.png") 'this filename was the only one that worked
_PUTIMAGE (0, 0), i

worked but I cant do my other inputs i have at that point where the image loads. this was in the built in help but previously didnt work. so this is weird, i guess when it works it works

answered Apr 22 '19 at 15:42

Patrick Coots

301
2
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due to it not being in `screen 12` anymore – Patrick Coots May 01 '19 at 04:37

eoredson · Answer 4 · 2019-05-03T06:05:53.513

0

Check if image was loaded correctly:

SCREEN _NEWIMAGE(640, 480, 32)
CLS , _RGB(0, 255, 0)
i& = _LOADIMAGE("FOREST.JPG")
IF i& = -1 THEN PRINT "invalid image": END
_PUTIMAGE (0, 0), i&, 0
END

edited May 03 '19 at 06:05

answered Apr 18 '19 at 01:03

eoredson

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QB64 unable to load image, saying "illegal function call"

4 Answers4