FrontPanel SDK

okSlider (Wire In)

ELEMENT	TYPE	DESCRIPTION
position	POSITION	Position of the top left corner.
size	SIZE	Size in pixels.
label	TEXT	Label text, shown inside the button.
tooltip	TEXT	Tooltip text.
endpoint	HEX BYTE	Endpoint address for the corresponding Wire In.
bit	NUMBER	Bit to which this component addresses (0=LSB, 15=MSB).
minvalue	NUMBER	The minimum value on the slider in base 10.
maxvalue	NUMBER	The maximum value on the slider in base 10. This cannot exceed 255.
value	NUMBER	Default value taken when the profile is loaded.
style	STYLE	VERTICAL – Displays the slider vertically.HORIZONTAL – Displays the silder horizontally.SHOWLABELS – Show min/max/value labels.

XML Example

<object class="okSlider">
	<position>310,5</position>
	<size>25,100</size>
	<label>Hi</label>
	<tooltip>4-bit vertical slider.</tooltip>
	<style>VERTICAL|SHOWLABELS</style>
	<minvalue>0</minvalue>
	<maxvalue>15</maxvalue>
	<value>3</value>
	<endpoint>0x04</endpoint>
	<bit>4</bit>
</object>Code language: HTML, XML (xml)

Lua Scripting

This component supports executing a script function when its value changes. The current value can be obtained by using GetValue() method and changed using SetValue(), for example here is a function that could be used to maintain the sum of two sliders values constant:

Lua:

function OnSlider(slider, event)
	local value = slider:GetValue();

	local slider2 = okUI:FindPanel("panel1"):FindSlider("slider2")
	slider2:SetValue(255 - value)
endCode language: JavaScript (javascript)

Assuming the panel contains the following elements:

XML:

<object class="okSlider">
	<position>15,15</position>
	<size>200,30</size>
	<style>HORIZONTAL</style>
	<minvalue>0</minvalue>
	<maxvalue>255</maxvalue>
	<value>0</value>
	<functionname>OnSlider</functionname>
</object>

<object class="okSlider" name="slider2">
	<position>15,50</position>
	<size>200,30</size>
	<minvalue>0</minvalue>
	<maxvalue>255</maxvalue>
	<value>255</value>
</object>Code language: HTML, XML (xml)

All XML components that support Lua scripting also inherit from the Control class. Please refer to the FrontPanel Scripting documentation for more information on this class.

XML Example

Lua Scripting

Example Screenshot