Having trouble with SetDeviceCameraToImage for QR Codes

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Kevin Cross

20

Years of Service

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Joined: 15th Nov 2003

Location: London, UK

Posted: 27th Sep 2017 08:09 Edited at: 27th Sep 2017 08:18

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I'm trying to set the camera display to image and then to sprite but it doesn't seem to do much as the sprite is white when running.

I had to install the latest version of AppGameKit because AppGameKit player auto updated so I don't know if it's a new version bug or it's my device. The device has 2 cameras and GetNumDeviceCameras returns 2. I did see that GetDeviceCameraType(0), GetDeviceCameraType(1) and GetDeviceCameraType(2) all return 0. Not sure if that's the problem.

Can anyone see a problem with the code and if you have a few seconds are you able to test it to see if it works fine on your device please? I know there's no way of stopping the stream in the code below.

+ Code Snippet

SetPrintColor(0, 0, 0)
imgCamQR = 0
sprCamQR = CreateSprite(imgCamQR)
SetSpriteSize(sprCamQR, GetVirtualWidth(), GetVirtualHeight())
SetSpritePosition(sprCamQR, 0, 0)
						
do
	print(GetNumDeviceCameras())
	SetDeviceCameraToImage(0, imgCamQR)
	SetSpriteImage(sprCamQR, imgCamQR)						
							
    Sync()
loop

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Markus

Valued Member

20

Years of Service

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Joined: 10th Apr 2004

Location: Germany

Posted: 27th Sep 2017 08:37

Link

https://www.appgamekit.com/documentation/Reference/Image/SetDeviceCameraToImage.htm

+ Code Snippet

rem AGK 2.0.21
rem MR 08.09.2016
rem Test for Android Device

SetImmersiveMode(1) //docu said from 4.4 up

img=1

cam=0

SetDeviceCameraToImage(cam,img) //cam input goto image, image for id will created

spr=CreateSprite(img)                   //image output into a sprite
setspritesize(spr,GetVirtualWidth(),GetVirtualHeight()) //full size

do
        print("click to exit")
        if GetPointerPressed() then exit
        sync()
        
loop
end

AGK (Steam) V2017.09.25 : Windows 10 Pro 64 Bit : AMD (17.7.2) Radeon R7 265 : Mac mini OS Sierra (10.12.2)

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Kevin Cross

20

Years of Service

User Offline

Joined: 15th Nov 2003

Location: London, UK

Posted: 27th Sep 2017 09:41

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@Markus, thanks again. I've now seen the problem. I fixed it by changing imgCamQR to equal 1 instead of 0 and in the CreateSprite I used 0 instead of imgCamQR. This code worked for me

+ Code Snippet

imgCamQR = 1
sprCamQR = CreateSprite(0)
SetSpriteSize(sprCamQR, GetVirtualWidth(), GetVirtualHeight())
SetSpritePosition(sprCamQR, 0, 0)
						
do
	print(GetNumDeviceCameras())
	SetDeviceCameraToImage(0, imgCamQR)
	SetSpriteImage(sprCamQR, imgCamQR)						
							
    Sync()
loop

I wanted to replace the image on the sprite continuously in a loop until exited because then I can scan QR codes in real time.

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