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AnnCheckModifierCallback Delegate

Summary

Callback used to check if specific key is down in this platform.

Syntax

TypeScript

JavaScript

function lt.Annotations.Engine.AnnCheckModifierCallback( 
   annKey 
)

interface lt.Annotations.Engine.AnnCheckModifierCallback { 
	( 
   annKey: AnnKeys 
): boolean; 
}

Parameters

annKey

Keys to check

Return Value

true if the specified key(s) is down; otherwise, false.

Remarks

This callback is used by the annotations core library to determine whether a specific key is currently down. Since Leadtools.Annotations.Engine is platform-independent, this callback must be set through the platform-specific automation object.

Requirements

Target Platforms

Reference

Leadtools.Annotations.Engine Namespace

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Help Version 22.0.2023.1.31

Leadtools.Annotations.Engine Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations.Engine Namespace

Assemblies