IBM 4820, System Reference Manual

Page: 85 / 124

b. Drag your finger across the screen. Check that the cursor accurately follows
your movements.
c. Touch each corner and along each edge of the screen. Check that the cursor
reaches the full image area and that you can touch and activate all icons and
menus across the entire screen
9. If any part of the test fails, calibrate the touchscreen again.
Customizing the touch response mode
The touch response mode defines how your touch emulates the functions of a mouse.
For example, you can define a touch to produce a button down (pressing a mouse
button) or button up (releasing the mouse button). Touch modes also define how your
touch produces a mouse click and double click. TouchWare allows the following touch
modes:
Desktop (default)
The system moves the cursor to the touch point, but does not generate a
button down as long as you continue to slide your finger around the screen.
When you pause and hold your finger steady, the system generates a mouse
button down. You can now slide your finger around the screen with this
position. When you lift your finger, the system generates a button up.
Drawing
The system moves the cursor to the touch point and immediately generates a
button down. You can slide your finger around the screen with the button held
down. When you lift your finger, the system generates a button up.
Button The system moves the cursor to the touch point and immediately generates a
button down and up (a click). To drag, slide your finger around the screen
(button down). When your lift your finger, the system generates a button up.
Click The system moves the cursor to the touch point and then immediately
generates a button down and up (a click). Click mode does not generate a
second button down, does not support drag and does not generate a mouse
event on finger lift-off.
Lift-off The system moves the cursor to the touch point, but does not generate a
mouse button down. You can slide your finger around the screen and your
movements are followed; however, the system generates mouse move events
only. Lifting your finger off of the screen generates a mouse button down. The
system then waits for a system-defined time delay, and generates a button up.
Drag is not supported; however lift-off mode is useful for applications that
requires greater accuracy.
Touchdown
The system moves the cursor to the touch point, generates a button down,
waits for a system-defined time delay, and generates a button up. The system
does not generate a mouse event on finger lift-off. Drag is not supported in this
mode.
Table 14-2 on page 14-4 describes how to click, double click, and drag, using the
different touch modes.
Chapter 14. System diagnostics and pinout connections
14-3