3.1 KiB
Kaleidoscope-HostOS
The HostOS
extension is not all that useful in itself, rather, it is a
building block other plugins and extensions can use to not repeat the same
guesswork and logic. Its primary purpose is to help either detect, or keep track
of the host operating system. The detection part is not the most reliable thing,
mind you.
The goal is to have a single place that remembers the host OS, either detected, or set by the end-user, in a Sketch, or via a macro, or some other way. This information can then be reused by other plugins.
See the Unicode extension for an example about how to use
HostOS
in practice.
Using the extension
The extension provides a HostOS
singleton object. It can either be a simple
one without auto-detection (the default), or one that will try to detect the
Host OS, using the FingerprintUSBHost library. To enable
auto-detection, KALEIDOSCOPE_HOSTOS_GUESSER
must be defined before including
the HostOS
library header.
#define KALEIDOSCOPE_HOSTOS_GUESSER 1
#include <Kaleidoscope.h>
#include <Kaleidoscope-HostOS.h>
#include <Kaleidoscope/HostOS-select.h>
void someFunction(void) {
if (HostOS.os() == kaleidoscope::hostos::LINUX) {
// do something linux-y
}
if (HostOS.os() == kaleidoscope::hostos::OSX) {
// do something OSX-y
}
}
KALEIDOSCOPE_INIT_PLUGINS(HostOS);
void setup(void) {
Kaleidoscope.setup ();
}
To be able to choose between the two variants, one must also include the
Kaleidoscope/HostOS-select.h
header.
Extension methods
The extension provides the following methods on the HostOS
singleton:
.os()
Returns the stored type of the Host OS.
.os(type)
Sets the type of the host OS, overriding any previous value. The type is then stored in EEPROM for persistence.
Host OS Values
The OS type (i.e. the return type of .os()
and the arguments to .os(type)
) will be one of the following:
kaleidoscope::hostos::LINUX
kaleidoscope::hostos::OSX
kaleidoscope::hostos::WINDOWS
kaleidoscope::hostos::OTHER
Focus commands
The plugin provides the FocusHostOSCommand
object, which, when enabled,
provides the hostos.type
Focus command.
hostos.type [type]
Without argument, returns the current OS type set (a numeric value).
With an argument, it sets the OS type.
This command can be used from the host to reliably set the OS type within the firmware.
Dependencies
Further reading
Starting from the example is the recommended way of getting started with the extension.