Slider - Cocoa

Kuzey · **Joined:** Fri Sep 30, 2005 7:20 pm **Posts:** 857

I have a slider with the settings of -100 for minimum and 100 for maximum. This works in Carbon, but the negative values are ignored in Cocoa.

I'm using RS 2012r2...is this a bug or standard behavior?

Thanks,

Kuzey

kermit · **Joined:** Mon May 30, 2011 12:56 am **Posts:** 702

Make your slider have min 0 and max 200.
Subtract 100 from .value before use

DaveS · **Posted:** Fri Apr 19, 2013 4:09 pm

kermit wrote:

Make your slider have min 0 and max 200.
Subtract 100 from .value before use

you mean from min 100 to max 200

Kuzey · **Joined:** Fri Sep 30, 2005 7:20 pm **Posts:** 857

Thanks guys,

I hope they update the language reference so I won't forget in a few months.

I do believe kermit is right, 0 to 200 and set the value to 100 in the property panel...so it's in the center on open & you have 100 on either side...I think.

Kuzey

rowlands · **Posted:** Fri Apr 19, 2013 9:59 pm

Kuzey wrote:

Thanks guys,

I hope they update the language reference so I won't forget in a few months.

I do believe kermit is right, 0 to 200 and set the value to 100 in the property panel...so it's in the center on open & you have 100 on either side...I think.

Kuzey

Indeed that will work, or you could use a declare to get at NSSlider's value.

soft declare function doubleValue lib "Cocoa" selector "doubleValue" (Ref as integer) as Double
return doubleValue(me.handle)

Kuzey · **Joined:** Fri Sep 30, 2005 7:20 pm **Posts:** 857

Hi Sam,

How would you actually use that, I have no experience with declares.

Kuzey

rowlands · **Posted:** Sat Apr 20, 2013 6:38 am

Kuzey wrote:

Hi Sam,

How would you actually use that, I have no experience with declares.

Kuzey

okay - this is untested, but it should go something like...

soft declare function doubleValue lib "Cocoa" selector "doubleValue" (Ref as integer) as Double
Dim sliderValue as double = doubleValue( slider1.handle)

where slider1 is the name of your slider. Once you've gotten it working, you can wrap it into a method so you can use it in many places.

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Slider - Cocoa