Handling keyboard strokes – Kofax DOKuStar Validation User Manual

Page 91

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DOKuStar Validation Programming Manual

Page

87

Handling Keyboard Strokes

Keyboard strokes can also be handled by an add-in for DOKuStar Validation. The appropriate service is called

Keyboard

service. First you must provide the keyboard service of Validation.

The keyboard service has two functions

OnChar()

and

OnKeyDown()

. In

OnChar()

you get the final code

from the keyboard. That means if you press

Shift-A

, you get the final key code in

OnChar()

, in this case

65

. In

OnKeyDown()

you get the code for

Shift

and

a

. Normally you would implement hotkeys in

OnKeyDown()

.

For our example we assume that numbers should be suppressed in the edit control and that the user should get a
message box if he presses

F4

.

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