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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

From Phidgets Legacy Support
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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
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<span style="color:#090;">// ----- Main Code -----</span>
<span style="color:#090;">// ----- Main Code -----</span><br><br>
Create Device Software Object
'''Create''' Device Software Object<br>
Hook Event Functions created above to Device
Hook Event Functions created above to Device<br>
Open Device
'''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
:Exit upon specific user input
:Exit upon specific user input


Close Device
'''Close''' Device
Delete Device
Delete Device



Revision as of 22:13, 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 Functions -----

Create any Language-Specific Functions (exception handling)

Create General Attach, Detach, and Error Handling Functions

On attach: Initialize hardware (antennas, etc)
On detach: Reset any state variables

Create Hardware-Specific Functions

Print messages to notify they are called
Perform minor accompanying changes (turn on LED, etc)

 

{{{1}}}

// ----- Main Code -----

Create Device Software Object
Hook Event Functions created above to Device
Open Device

Loop waiting on events and user input
Get and Print various device statuses on request by input
Handle on-going attach and detach events
Exit upon specific user input

Close Device Delete Device

 

{{{2}}}