Position constant value

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emeck
Posts: 79
Joined: Fri Apr 03, 2015 3:17 pm

Position constant value

Post by emeck » Fri Apr 12, 2019 11:33 am

Aren't #TOP and #LEFT supposed to be 0, and the other position constants dependent on display's dimensions?
It seems to be hardecoded for me.

For example:

Code: Select all

@DISPLAY 1, {Width = 640, Height = 480, Color = #BLACK}

TextOut(#CENTER, #CENTER, "Text")
TextOut(#LEFT, #CENTER, "Text")
TextOut(#RIGHT, #CENTER, "Text")
TextOut(#CENTER, #TOP, "Text")
TextOut(#CENTER, #BOTTOM, "Text")

DebugPrint("Left: "..#LEFT)
DebugPrint("Right: "..#RIGHT)
DebugPrint("Top: "..#TOP)
DebugPrint("Bottom: "..#BOTTOM)
DebugPrint("Topout: "..#TOPOUT)
DebugPrint("Bottomout: "..#BOTTOMOUT) 

Repeat
    WaitEvent()
Forever 
The text is displayed correctly, but debugprint always prints:
Left: -90000
Right: -80000
Top: -70000
Bottom: -60000
Topout: -30000
Bottomout: -20000

I have tried different display dimensions but always same results. This is with MOS3.11 and HW8.

Edit: same output with HW8 for Linux arm.
PowerBook 5.2 MorphOS 3.12
PowerBook 5.8 MorphOS 3.12
Amiga 1200 BPPC/BVision AOS4.1 FE

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airsoftsoftwair
Posts: 3185
Joined: Fri Feb 12, 2010 2:33 pm
Location: Germany
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Re: Position constant value

Post by airsoftsoftwair » Fri Apr 12, 2019 5:35 pm

I think #TOP and #LEFT can also be used for some other purposes like clip regions which makes it impossible to define them as 0...

User avatar
emeck
Posts: 79
Joined: Fri Apr 03, 2015 3:17 pm

Re: Position constant value

Post by emeck » Fri Apr 12, 2019 7:05 pm

I see it now. I was focusing only on display dimensions but some of those constants work for other things too.
Thanks for the reply.
PowerBook 5.2 MorphOS 3.12
PowerBook 5.8 MorphOS 3.12
Amiga 1200 BPPC/BVision AOS4.1 FE

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