Alert.png

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.


Click on the 2phidget22.jpg button in the menu bar to go to the Phidget22 version of this page.

Alert.png

Template:ExamplePseudocode: Difference between revisions

From Phidgets Legacy Support
No edit summary
No edit summary
 
(15 intermediate revisions by 2 users not shown)
Line 1: Line 1:
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 Hello World example has this general structure so you can follow along.  We also have [[General Phidget Programming|an in-depth general introduction]] to writing Phidget code (like open, read data, etc), as well as the {{{3}}} for specific syntax:


The examples for each device all have this general structure so you can follow along:
<div class="source">
 
{| class="source" style="margin-left:15px;"
 
<div style="background-color: #f3f3f3; border-color: #1c9edb; border-width:1px; border-style: dashed;">
<font size="2">
{| style="border:0; padding-left:20px; margin-left:10px;"


|- valign="top"
|- valign="top"
|<font face="courier new" family="monospace">
|<font face="courier new" family="monospace">


<span style="color:#090;">// ----- Event Functions -----</span>
<span style="color:#090;">// ----- '''Event''' and Other Functions -----</span>


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: Print Hello Message
:On detach: Reset any state variables
:On detach: Print Goodbye Message
 
Create Hardware-Specific Functions
:Print messages to notify they are called
:Perform minor accompanying changes (turn on LED, etc)


</font>
</font>
Line 30: Line 22:
</font>
</font>
|- valign="top"
|- valign="top"
|<font face="courier new" family="monospace">
|style=white-space:nowrap|<font face="courier new" family="monospace">


<span style="color:#090;">// ----- Main Code -----</span>
<span style="color:#090;">// ----- '''Main''' Code -----</span><br><br>
Create Device Software Object
'''Create''' Manager 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:
;Wait for 'Enter' key character 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
:Print Hello and Goodbye messages
:Exit upon input
 
'''Close''' Device


Close Device
Delete Device
Delete Device


Line 52: Line 45:
</font>
</font>
|}
|}
</font>
</div>
</div>

Latest revision as of 20:47, 25 April 2012

The Hello World example has this general structure so you can follow along. We also have an in-depth general introduction to writing Phidget code (like open, read data, etc), as well as the {{{3}}} for specific syntax:

// ----- Event and Other Functions -----

Create any Language-Specific Functions (exception handling)

Create General Attach, Detach, and Error Handling Functions:

On attach: Print Hello Message
On detach: Print Goodbye Message

  

{{{1}}}

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

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

Wait for 'Enter' key character input
Handle on-going attach and detach events
Print Hello and Goodbye messages
Exit upon input

Close Device

Delete Device

 

{{{2}}}

Retrieved from "https://www.phidgets.com/docs21/index.php?title=Template:ExamplePseudocode&oldid=19313"