Blitz3D+ Command Reference

SetSpinBoxStep spinbox,step

Parameters

spinbox - spin box gadget

step - amount added or removed per arrow click; must be positive

Description

Sets how much a spin box's arrows change its value per click.

Requires Extended language mode.

The step applies to the up/down buttons and to the arrow keys while the field has focus. The default is 1; a position field in an editor might use 5 so nudging moves in useful increments, while the user can still type any exact value - typed numbers are clamped to the range but never snapped to the step.

Zero or negative steps stop with a runtime error. Each arrow click that actually changes the value posts a critical $401 event with the new value in EventData.

See it working in the native input controls sample.

See also: CreateSpinBox, SetSpinBoxRange, SetSpinBoxValue, SpinBoxValue.

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