View source for Touch Key lock on touch


=== background ===
Smart LCD Touch_Key (TPK) is action on release by default. In case of mistouched, user can shift away form the Touch_Key and release without activate the Touch_Key action.

In some of the application, it may necessary to config Touch_Key to lock on touch. It can be activate the touch down Touch_Key action even user shift away form the touch down point.

=== how to ===

# SGTools
# menu --> Tools --> Project Setting
# enable "Touch-Key lock on touch"

[[File:SGT Project Setting.png|640x640px]]

Touch-Key Locks On Touch
{|
|disable (default)
|
* user touch on a Touch_Key, action on release
* user shift away form the Touch_Key and release, it can perform release without activate the Touch_Key action.
|-
|enable
|
* user touch on a Touch_Key, action on release
* user shift away form the Touch_Key and release,  it can perform release with activate the touch down Touch_Key action.
|}

=== note ===
"Touch-Key lock on touch" may also help to improve noisy operating environment.