Command line arguments in openFrameworks

main.cpp

#include "ofApp.h"
#include "ofAppGlutWindow.h"

//========================================================================
// Command line arguments
// argc : argument count.. how many args?
// argv : arguments vector (array, in reality)

int main(int argc, char *argv[]){
    
    // vector for storing args
    vector<string> myArgs;
    
    if(argc > 1){
        for(int i = 0; i < argc; i++){
            //cout << "arg num " << i << " : " << argv[i] << endl;
            myArgs.push_back(argv[i]);
        }
    }
    
    // create a window
    ofAppGlutWindow window;
    
    // set width, height, mode (OF_WINDOW or OF_FULLSCREEN)
    ofSetupOpenGL(&window, 1024, 768, OF_WINDOW);
    
    ofApp *app = new ofApp();
    // add args to app instance
    app->arguments = myArgs;
    ofRunApp(app);
}

ofApp.cpp

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::draw(){
    ofBackground(0);
    ofSetColor(0,255,0);
    ofDrawBitmapString("App arguments: ", 20.0f, 20.0f);
    ofSetColor(255);
    for (int i = 0; i < arguments.size(); i++){
        ofDrawBitmapString(arguments[i], 20.0f, 60.0f + (20*i));
    }
}

ofApp.h

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {
    public:
		void setup();
		void update();
		void draw();
		
		void keyPressed(int key);
		void keyReleased(int key);
		void mouseMoved(int x, int y);
		void mouseDragged(int x, int y, int button);
		void mousePressed(int x, int y, int button);
		void mouseReleased(int x, int y, int button);
		void windowResized(int w, int h);
		void dragEvent(ofDragInfo dragInfo);
		void gotMessage(ofMessage msg);
    		
    		// Vector for storing our args
        	vector<string> arguments;
};

OSX Example

open -n ./emptyExampleDebug.app/ --args --myargs 1 2 3 4