Keypad Control - Bolymin BETA903A User Manual

4.6.4.

Keypad control

The keypad of BETA903A supports 8 user-defined buttons. The buttons of keypad of BETA903A
will map to F11~F18 of keyboard. To learn which button of keypad is pressed, you may catch
WM_KEYDOWN or WM_KEYUP message in your program and add the process codes. Here is
a step guide:
STEP 1: Override PreTranslateMessage() function of the window which will catch key message,
as shown below:
STEP 2: In Class view of eVC 4.0, click right button of mouse on the window that will catch the
key message. Select "Add Windows Message Handler..." and then select WM_KEYDOWN or
WM_KEYUP message.
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