Things You'll Need:
- Programming Experience
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Step 1
Download the free Flex SDK 2 (http://www.adobe.com/products/flex/downloads/) from Adobe's website. This is approximately 40 megabytes. Flex is basically a standard library and compiler (MXML) that can build and output SWF's (Flash Files).
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Step 2
Download and install the free Java Runtime Environment (JRE) from http://www.java.com/getjava/. The MXML (Flex) compiler is written in Java and will require this in order to run.
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Step 3
Install the free Flex SDK from the ZIP file (flex_sdk_2.zip) you downloaded. For this, first create a local folder on your computer and unzip it there. Then add the bin\ folder to the PATH environment variable so you can run MXMLC.exe (the Flex/MXML compiler) from any directory.
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Step 4
simple paint appWrite a stand-alone ActionScript 3 (*.as) file. If you're unfamiliar with ActionScript you will need to find a tutorial or book, but basically just know that it is a form of JavaScript/ECMAScript and if you're comfortable with that (or C/Java/C#) then you should understand it okay.
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Step 5
compile paint appBuild your ActionScript file using MXMLC.exe. Some parameters you'll want to use will probably be -default-frame-rate, -default-size, and -default-background-color. This will compile your *.AS file into a *.SWF or output any errors that happened.
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Step 6
web page for paint appRun the *.SWF either with the free Flash 9 Debug Player (install under player\debug in your Flex 2 SDK directory) or within your web browser (FireFox / Internet Explorer).
