PyQt5 QCalendarWidget - Getting Height in Millimeter

PyQt5 QCalendarWidget - Getting Height in Millimeter

To obtain the height of a QCalendarWidget in millimeters in PyQt5, you can use the QDesktopWidget class to obtain the screen's physical size and resolution to compute the height of the widget in millimeters. Here's how you can do it:

  1. Obtain the screen's physical size in millimeters.
  2. Get the screen resolution in pixels.
  3. Calculate the height of the widget in millimeters based on its height in pixels.

Here's an example:

import sys from PyQt5.QtWidgets import QApplication, QMainWindow, QCalendarWidget, QDesktopWidget class MainWindow(QMainWindow): def __init__(self): super().__init__() self.calendar = QCalendarWidget(self) self.setCentralWidget(self.calendar) # Resize the main window to better see the calendar self.resize(300, 300) # Display the calendar height in millimeters self.display_calendar_height_in_mm() def display_calendar_height_in_mm(self): # Get the desktop metrics desktop = QApplication.desktop() screen = desktop.screen() # Calculate DPI logical_dpi = screen.logicalDpiY() # Calculate the height in millimeters calendar_height_mm = (self.calendar.height() / logical_dpi) * 25.4 # 25.4 mm/inch print(f"Calendar height in millimeters: {calendar_height_mm:.2f} mm") if __name__ == '__main__': app = QApplication(sys.argv) win = MainWindow() win.show() sys.exit(app.exec_())

In this example, we're using the logical DPI value provided by the screen.logicalDpiY() method to convert the pixel height of the calendar widget to millimeters.

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