PyQt5 QSpinBox - Checking if the character is in font

PyQt5 QSpinBox - Checking if the character is in font

If you want to check if a specific character is available in the font used by a QSpinBox (or any other widget), you can use the inFont method of the QFontMetrics class.

Here's a step-by-step guide:

  1. Get the font of the QSpinBox using the font() method.
  2. Create a QFontMetrics object using the font.
  3. Use the inFont method of QFontMetrics to check if a character is in the font.

Here's an example:

import sys from PyQt5.QtWidgets import QApplication, QSpinBox, QMessageBox app = QApplication(sys.argv) spinbox = QSpinBox() # Get the font of the spinbox font = spinbox.font() # Create QFontMetrics object font_metrics = QFontMetrics(font) # Check if the character '��' (omega) is in the font if font_metrics.inFont('��'): QMessageBox.information(None, "Font Check", "The character '��' is available in the font!") else: QMessageBox.warning(None, "Font Check", "The character '��' is NOT available in the font!") sys.exit(app.exec_())

In the code above, after creating the QSpinBox, we check if the Greek character '��' (omega) is available in the font used by the spinbox. Depending on the result, a message box is shown informing the user of the availability of the character in the font.

Remember to change the character in the inFont method to whichever character you want to check for.

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