my module

MyModule

#example #template #simple #data #callback

Simple frequency-to-period converter (legacy callback style).

Module Name	template simple
Type	mtSimple
Color	clDataModuleColor
Source	examples/MyModule/

Description

A very simple module that converts a frequency (Hz) to its corresponding period (ms). Functionally identical to TemplateModuleSimple but uses an older callback pattern (parameter index instead of callback IDs).

Parameters

#	Name	Type	I/O	Range	Scale	Default
0	freq	ptDataFader	Input	0.1 – 20000 Hz	scLog	50
1	period	ptDataFader	Output (ReadOnly)	0.05 – 10000 ms	scLog	—

How It Works

• onCallBack: Checks Message->wParam == 0 (parameter index) to detect freq changes, then calls computePeriod().
• computePeriod(): Sets period = 1000.0 / freq.

Legacy Pattern Note

This example uses the old-style callback pattern where wParam is the parameter index:

if (Message->wParam == 0)  // parameter index — legacy pattern

The modern recommended pattern uses named callback IDs (see TemplateModuleSimple).

SDK Callbacks Used

onGetModuleInfo · onInitModule · onGetParamInfo · onCallBack · onProcess

Related Examples

• TemplateModuleSimple — Same logic with modern callback IDs
• DataMultiply — Another simple data module

SDK Reference

• UserModuleBase Class