Notice: This page contains information for the legacy Phidget21 Library. Phidget21 is out of support. Bugfixes may be considered on a case by case basis. Phidget21 does not support VINT Phidgets, or new USB Phidgets released after 2020. We maintain a selection of legacy devices for sale that are supported in Phidget21. We recommend that new projects be developed against the Phidget22 Library.
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Template:ExamplePseudocode: Difference between revisions
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Create any Language-Specific Functions (exception handling) | Create any Language-Specific Functions (exception handling) | ||
Create General '''Attach''', '''Detach''', and '''Error''' Handling Functions | Create General '''Attach''', '''Detach''', and '''Error''' Handling Functions: | ||
:On attach: Initialize hardware (antennas, etc) | :On attach: Initialize hardware (antennas, etc) | ||
:On detach: Reset any state variables | :On detach: Reset any state variables | ||
Create Hardware-Specific Functions | Create Hardware-Specific Functions: | ||
:Print messages to notify they are called | :Print messages to notify they are called | ||
:Perform minor accompanying changes (turn on LED, etc) | :Perform minor accompanying changes (turn on LED, etc) | ||
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'''Open''' Device<br> | '''Open''' Device<br> | ||
;Loop waiting on events and user input | ;Loop waiting on events and user input | ||
:Get and Print various device statuses on request by input | :Get and Print various device statuses on request by input | ||
:Handle on-going attach and detach events | :Handle on-going attach and detach events |
Revision as of 22:15, 8 December 2011
You can learn about the flow and the functions within the examples by reading about General Phidget Programming, which will walk you through the concepts in each example, regardless of your device or language.
The examples for each device all have this general structure so you can follow along:
// ----- Event and Other Functions ----- Create any Language-Specific Functions (exception handling) Create General Attach, Detach, and Error Handling Functions:
Create Hardware-Specific Functions:
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{{{1}}} | |
// ----- Main Code -----
Close Device Delete Device
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{{{2}}} |