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Name

selectInput()

Description

Open a platform-specific file chooser dialog to select a file for input. After the selection is made, the selected File 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.

Examples

  • void setup() {
  selectInput("Select a file to process:", "fileSelected");
}

void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else {
    println("User selected " + selection.getAbsolutePath());
  }
}

Syntax

  • selectInput(prompt, callback)
  • selectInput(prompt, callback, file)
  • selectInput(prompt, callback, file, callbackObject)

Parameters

  • prompt(String)message to the user
  • callback(String)name of the method to be called when the selection is made

Return

  • void
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.