This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.



void setup() {
  selectFolder("Select a folder to process:", "folderSelected");

void folderSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else {
    println("User selected " + selection.getAbsolutePath());
Description Opens a platform-specific file chooser dialog to select a folder. After the selection is made, the selection will be passed to the 'callback' function. If the dialog is closed or canceled, null will be sent to the function, so that the program is not waiting for additional input. The callback is necessary because of how threading works.
selectFolder(prompt, callback)
selectFolder(prompt, callback, file)
selectFolder(prompt, callback, file, callbackObject)
selectFolder(prompt, callbackMethod, defaultSelection, callbackObject, parentFrame)
selectFolder(prompt, callbackMethod, defaultSelection, callbackObject, parentFrame, sketch)
prompt String: message to the user
callback String: name of the method to be called when the selection is made
Updated on August 17, 2018 03:36:31pm EDT

Creative Commons License