98f6b2f1a5
* set environment variables before starting QApp * fix-422 * Better support of hidpi * Fix Typo in App-Name * Remove fontScaleFactor bits * Add documenation for hidpi displays
34 lines
930 B
Python
34 lines
930 B
Python
# -*- coding: utf-8 -*-
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"""
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Simple example demonstrating a button which displays a colored rectangle
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and allows the user to select a new color by clicking on the button.
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"""
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import initExample ## Add path to library (just for examples; you do not need this)
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import pyqtgraph as pg
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from pyqtgraph.Qt import QtCore, QtGui
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import numpy as np
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app = pg.mkQApp("ColorButton Example")
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win = QtGui.QMainWindow()
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btn = pg.ColorButton()
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win.setCentralWidget(btn)
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win.show()
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win.setWindowTitle('pyqtgraph example: ColorButton')
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def change(btn):
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print("change", btn.color())
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def done(btn):
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print("done", btn.color())
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btn.sigColorChanging.connect(change)
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btn.sigColorChanged.connect(done)
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## Start Qt event loop unless running in interactive mode or using pyside.
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if __name__ == '__main__':
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import sys
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if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
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QtGui.QApplication.instance().exec_()
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