Take a screenshot

Creating a screenshot of your work is very simple. You simply initialize an ofImage, draw something, and then use img.grabScreen(); to capture what you drew.

in the header file (.h)

Initialize an ofImage labeled "img".

ofImage     img;

in the implementation file (.cpp)

Draw something! For the sake of example, draw a circle in the draw() function.

void ofApp::draw(){
    ofDrawCircle(ofGetWidth()/2, ofGetHeight()/2, 200);
}

Next, trigger grabbing and saving the screen. Here, when "x" is pressed, a rectangle starting at point (0,0) with a width and height of ofGetWidth() and ofGetHeight() is grabbed and saved.

void ofApp::keyPressed(int key){
    if(key == 'x'){
        img.grabScreen(0, 0 , ofGetWidth(), ofGetHeight());
        img.save("screenshot.png");
    }
}

After adding this to any of your apps, press "x" and a screenshot of your work will save to the bin >> data folder within your specific app folder.