Share global variables between windows App Designer

Hi all,

I'm pretty new to App Designer. I designed a 2-windows software and would like to trasfer a global variable created in one of the 2 windows to the other one, setting it as global in there as well. Does any of you if this is possible?

The window where the variable was created as global let me transfer a variable with prefix "app." (that is a global variable), but the StartUp function of the receiving window does not take the prefix, so I am obliged to set the same variable in the receiving window as local.

Thanks in advance for your help!

Answer 1

[Jan]

Global variables are a mess in every case. Sending the data through a well defined interface would be much better.

Do not use "app" as name of a global variable, because this variable occurs in both programs. Sharing them would crash the GUIs. But you can select another name, preferrably a name, which does not occur anywhere else as "sharedBetweenTheGUIs". Declare it as global in both applications and then defining it in one GUI makes it available in the other also.

Except if you are talking about compiled applications. Do you run the GUIs inside a Matlab session?

[Iacopo]

Thanks Jan for your help! Yes I'm running my software inside a Matlab session

[Jan]

Then it is safer to use finobj() to search the other GUI and to write the data directly to it, e.g. by setappdata. A specific function of the other GUI to provide data would be even smarter.