This frameworks adapts the W3C Pointer Event specification to work with openFrameworks. A compatibility layer for iOS / UITouch includes support for high-frequency coalesced events, predicted events, event property updates, tilt, pressure and other advanced properties.

Currently the openFrameworks pointer model separates touch and mouse events, making cross platform development a little tricky.

Simply put, ofxPointer merges pointer, touch and pen input into a single extensible interface.

A typical program will now look like this:

#pragma once


#include "ofMain.h"
#include "ofxPointer.h"


class ofApp: public ofBaseApp
{
public:
    void setup() override
    {
        // Register the pointer events.
        ofx::RegisterPointerEvents(this);
    }

    void update() override
    {
        // Update
    }


    void draw() override
    {
        // Draw
    }


    void onPointerUp(ofx::PointerEventArgs& evt)
    {
        ofLogNotice("ofApp::onPointerUp") << evt;
    }


    void onPointerDown(ofx::PointerEventArgs& evt)
    {
        ofLogNotice("ofApp::onPointerDown") << evt;
    }


    void pointerMove(ofx::PointerEventArgs& evt)
    {
        ofLogNotice("ofApp::onPointerMove") << evt;
    }


    void onPointerCancel(ofx::PointerEventArgs& evt)
    {
        ofLogNotice("ofApp::onPointerCancel") << evt;
    }

};

Or even more simply, like this:

#pragma once


#include "ofMain.h"
#include "ofxPointer.h"


class ofApp: public ofBaseApp
{
public:
    void setup() override
    {
        // Register the pointer events.
        ofx::RegisterPointerEvent(this);
    }

    void update() override
    {
        // Update
    }


    void draw() override
    {
        // Draw
    }

    // All pointer events are returned to a single callback.
    void onPointerEvent(ofx::PointerEventArgs& evt)
    {
        ofLogNotice("ofApp::onPointerEvent") << evt;
    }
};

iOS Currently supports all advanced UITouch features including tiltX/Y, elevation, azimuth, precise location, pressure, predicted and coalesced events, estimated properties and estimated property updates. See the iOS examples for more.

To get started, generate the example project files using the openFrameworks Project Generator.

API documentation can be found here.

Linux, macOS

Visual Studio, MSYS

The stable branch of this repository is meant to be compatible with the openFrameworks stable branch, which corresponds to the latest official openFrameworks release.

The master branch of this repository is meant to be compatible with the openFrameworks master branch.

Some past openFrameworks releases are supported via tagged versions, but only stable and master branches are actively supported.

This project uses Semantic Versioning, although strict adherence will only come into effect at version 1.0.0.

See LICENSE.md.

Pull Requests are always welcome, so if you make any improvements please feel free to float them back upstream :)

1. Fork this repository.
2. Create your feature branch (git checkout -b my-new-feature).
3. Commit your changes (git commit -am 'Add some feature').
4. Push to the branch (git push origin my-new-feature).
5. Create new Pull Request.