Hi,

Arduino libraries are really simple things. All the installer does is unpack the zip into "mydocuments\arduino\libraries". "mydocuments\arduino" is called the sketchBook folder in Arduino speak and if you alter the folder in the options then the location of your \libraries must also be moved.

There isn't a registration system that is maintained when you install a library. The "mydocuments\arduino\libraries" folder is enumerated each time the ide starts or when you click "rescan". The scan of the physical folder determines which libraries are available. So you didn't need the zip and you can edit the source code in the "mydocuments\arduino\libraries\[your lib name]" folder.

The display of the library and arduino core sources  (src\micro-api-readonly) in your project does not affect compile. You have used the "Toggle Hidden Files" facility to make life easier when developing but the "readonly" section is for reference purposes only. 

It's useful you have toggled in the hidden files because I am going to assume visual micro added "StartupMonitor" folder in the Solution Tree automatically in which case we know the library sources exist in the correct location? 

If the lib sources exist in the correct location and the code fails to find them it must be a problem with the #include syntax. Did you use the "Add Library" facility to add the #include to the code? That ensure the correct syntax is used. I notice "StartupMonitor" has been #included with quotes and not chevrons. 

#include "StartupMonitor.h"

Should be <> ???
#include <StartupMonitor.h>

Make sense?

Hi,

Your are getting confused. 

Please click "vMicro>Toggle Hidden Files" to remove the code shortcuts from your project.

Then consider how libraries work.

Add code relates to the current project only.

If you want to create libraries do that in a different project until you understand how arduino works