checkKeyModifier Method

Summary

Determines if the specified key modifier is currently in a pressed state.

Syntax

JavaScript Syntax
checkKeyModifier = function(e, key) 
TypeScript Syntax
static checkKeyModifier(e: Event, key: Keys): boolean; 

Parameters

e

The native element event.

key

Key to check.

Return Value

true if the modifier specified by key is currently in a pressed state, otherwise; false.

Remarks

This method is used by the various ImageViewerInteractiveMode instances that support a key modifier. For example, holding down CTRL while dragging the mouse in ImageViewerPanZoomInteractiveMode will perform a zoom operation instead of a pan. The interactive mode will call this method to determine the status of the CTRL modifier.

Requirements

Target Platforms

Help Version 19.0.2017.10.18
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