ImGui Number

Overview

• Node Name: im Number
• Category: repeat_instant
• File: extensions/flowgraph/nodes/ui/imgui/elemental/imNumbers.lua

Displays a numeric input widget in an ImGui window. Supports multiple input modes: Int, Float, SliderInt, SliderFloat, DragInt, DragFloat.

Pin Schema

Input Pins

Output Pins

Internals

Input Modes

The mode is selected via drawCustomProperties() in the editor and serialized with the node.

Key Methods

How It Works

1. Value initializes to setVal on first frame or when set flow is active.
2. Draws the appropriate ImGui widget based on the selected mode.
3. Clamps the result to min/max if set.
4. Outputs the current value and fires changed impulse when the user modifies it.

Usage Example

-- Flowgraph:
-- [im Begin] → [im Number (text="Speed", mode=SliderFloat, min=0, max=100)]
--                → (value) → [Set Vehicle Speed]
--                → (changed) → [Log Change]

-- Under the hood (SliderFloat mode):
local val = im.FloatPtr(50)
if im.SliderFloat("Speed##42", val, 0, 100, "%0.2f", 1) then
  -- value changed
end

Key Dependencies

• ui_imgui - ImGui bindings (InputInt, InputFloat, SliderInt, SliderFloat, DragInt, DragFloat)

See Also

• im Begin (Flowgraph Node) - Related reference
• im Button (Flowgraph Node) - Related reference
• im Checkbox (Flowgraph Node) - Related reference
• FlowGraph Guide - Guide