Keeping graphic objects in programs

[Han]

The best way, in my personal opinion, is to use the connectivity kit (CK) while your calculator (real or virtual) is connected to your computer.

1. Find your calculator on the left side, and click on Application Library. Your own app should be created using one of the existing applications (used as a template). So for example, in the past I wrote a 3D graphing app (link below in my signature) and it was based on the Advanced Graphing app. Let's use this one as an example. Right-click on Advanced Graphing, and select Copy.

2. Rename the copy to whatever is appropriate for your project. Then open the project in the CK by double clicking on it. A window will open to the right side and you should see a bunch of tabs corresponding to the black "app" keys on the calculator (near the direction pad). In particular, though, is the Program tab which is the "file" that contains your source code.

3. An app basically takes over the "base" app (in our case, the Advanced Graphing app) via built-in functions that are pre-populated for you in the CK. You simply have to modify them to suit your needs. The basics can be found in this video: https://www.youtube.com/watch?v=hv-MMwfzwwA (it's quite outdated, but the main ideas are all still applicable).

Other resources that would be of benefit if you are new to the process:

https://www.hpmuseum.org/forum/thread-215.html
https://www.hpmuseum.org/forum/thread-216.html

Once you are ready to test your app, you can either send it to your calculator (make sure to edit the source file via the Program editor to "Check" and make sure there are no source code errors first). The other option is to simultaneously run the virtual app, and test it out on the virtual app.