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diff --git a/sources/pyside2/doc/tutorials/basictutorial/widgets.rst b/sources/pyside2/doc/tutorials/basictutorial/widgets.rst new file mode 100644 index 000000000..80c137cac --- /dev/null +++ b/sources/pyside2/doc/tutorials/basictutorial/widgets.rst @@ -0,0 +1,40 @@ +Your First QtWidgets Application +********************************* + +As with any other programming framework, +you start with the traditional "Hello World" program. + +Here is a simple example of a Hello World application in PySide2: +:: + import sys + from PySide2.QtWidgets import QApplication, QLabel + + app = QApplication(sys.argv) + label = QLabel("Hello World!") + label.show() + app.exec_() + + +For a widget application using PySide2, you must always start by +importing the appropriate class from the `PySide2.QtWidgets` module. + +After the imports, you create a `QApplication` instance. As Qt can +receive arguments from command line, you may pass any argument to +the QApplication object. Usually, you don't need to pass any +arguments so you can leave it as is, or use the following approach: +:: + app = QApplication([]) + +After the creation of the application object, we have created a +`QLabel` object. A `QLabel` is a widget that can present text +(simple or rich, like html), and images: +:: + # This HTML approach will be valid too! + label = QLabel("<font color=red size=40>Hello World!</font>") + +.. note:: After the creation of the label, we are calling the +method `show()` to show the label. + +Finally, we call `app.exec_()` to enter the Qt main loop and start +to execute the Qt code. In reality, it is only here where the label +is shown, but this can be ignored for now. |