# Python GUI Apps mit PyQt5 (ohne OOP)

Das folgende Programm erstellt ein einfaches 

<code python>
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QApplication, QMainWindow
import sys

"""
Info:
- PyQt5: cross platform gui framework (runs on Win,Mac,Linux,iOS,Android)
- Install: pip install pyqt5
"""

app = QApplication(sys.argv) # create pyqt app 
win = QMainWindow() # create a window for pyqt app
win.setGeometry(500,200,500,300) # set position and windows size of win: x0,y0,width,height
win.setWindowTitle("Title of my awesome app!") # sets a title

# add label
label1 = QtWidgets.QLabel(win) # add a label to the window win
label1.move(20,20)
label1.setObjectName("label1")
label1.setText("Label 1")

# add button
button1 = QtWidgets.QPushButton(win)
button1.setGeometry(200,100,80,80)
button1.setObjectName("button1")
button1.setText("Button 1")
button1.clicked.connect(lambda: button1_clicked(button1)) # even: calls function button1_clicked when clicking button1 and passes the button as an argument

# events
def button1_clicked(b):
    print(f"Button with objectName {b.objectName()} clicked!")

win.show()
sys.exit(app.exec_()) # properly exits python program when closing pyqt app
</code>

Es stehen viele **weitere Widgets** zur Verfügung wie:

|**Widget**|**What it does**|
|QCheckbox|A checkbox|
|QComboBox|A dropdown list box|
|QDateEdit|For editing dates and datetimes|
|QDateTimeEdit|For editing dates and datetimes|
|QDial|Rotatable dial|
|QDoubleSpinbox|A number spinner for floats|
|QFontComboBox|A list of fonts|
|QLCDNumber|A quite ugly LCD display|
|QLabel|Just a label, not interactive|
|QLineEdit|Enter a line of text|
|QProgressBar|A progress bar|
|QPushButton|A button|
|QRadioButton|A toggle set, with only one active item|
|QSlider|A slider|
|QSpinBox|An integer spinner|
|QTimeEdit|For editing times|