Callback used to check if specific key is down in this platform.
function lt.Annotations.Core.AnnCheckModifierCallback(annKey)
interface lt.Annotations.Core.AnnCheckModifierCallback {
(annKey: AnnKeys): boolean;
}
annKey
Keys to check
true if the specified key(s) is down; otherwise, false.
This callback is used by the annotations core library to determine whether a specific key is currently down. Since Leadtools.Annotations.Core is platform-independent, this callback must be set through the platform-specific automation object.
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