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Programmable Dialog Box Reference
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: slider {
action alignment big_increment fixed_height
fixed_width height key label layout
max_value min_value mnemonic small_increment
value width
}
A slider obtains a numeric value. The user can drag the slider's indicator to the left or right (or up or down) to obtain a value whose meaning depends on the application. This value is returned as a string containing a signed integer within a specified range (the integer is a 16-bit value, so the maximum range is -32,768 to 32,767). The application can scale this value as required.