mirror of
https://github.com/processing/processing4.git
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69 lines
1.0 KiB
XML
69 lines
1.0 KiB
XML
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<root>
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<name>keyPressed</name>
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<category>Input/Output</category>
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<subcategory>Keyboard</subcategory>
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<usage>Web & Application</usage>
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<example>
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<image>keyPressed.jar</image>
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<code>
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// Click on the image to give it focus
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// and press any key
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// Note: the rectangle in this example may
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// flicker as the operating system may
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// register a long key press as a repetition
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// of key presses
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void loop() {
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if (keyPressed == true) {
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fill(0);
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} else {
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fill(255);
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}
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rect(25, 25, 50, 50);
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}
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</code>
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</example>
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<description>
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The boolean system variable <b>keyPressed</b> is <b>true</b> if any key is pressed and <b>false</b> if no keys are pressed.
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</description>
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<syntax>
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keyPressed
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</syntax>
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<parameter>
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<label></label>
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<description></description>
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</parameter>
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<returns></returns>
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<related>
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key
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keyCode
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keyPressed()
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keyReleased()
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</related>
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<availability>1.0</availability>
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<type>System variable</type>
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<partof>Core</partof>
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</root>
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