PyQt5 QDoubleSpinBox - Getting Minimum Possible Value

PyQt5 QDoubleSpinBox - Getting Minimum Possible Value

In PyQt5, the QDoubleSpinBox widget is a spin box control that allows the user to input floating-point numbers.

To get the minimum possible value that can be set for a QDoubleSpinBox, you can use the minimum() method. By default, a QDoubleSpinBox has its minimum value set to -sys.float_info.max, which is the largest representable negative floating-point number in Python. But if you've set a custom minimum value, then the minimum() method will return that custom value.

Here's an example:

import sys from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QDoubleSpinBox, QLabel class App(QWidget): def __init__(self): super().__init__() self.init_ui() def init_ui(self): layout = QVBoxLayout() self.dspinbox = QDoubleSpinBox() layout.addWidget(self.dspinbox) self.label = QLabel("Minimum Possible Value: " + str(self.dspinbox.minimum())) layout.addWidget(self.label) self.setLayout(layout) app = QApplication(sys.argv) window = App() window.show() app.exec_()

In the above code, we've created a simple window containing a QDoubleSpinBox and a QLabel. The label displays the minimum possible value of the QDoubleSpinBox. If you've not set a custom minimum value, it should display the default minimum value, which is -sys.float_info.max.

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