insert basic code source and run it

[signalK]

Hi,

My goal is to copy / paste source code of basic functions in order to understand, to study their single effect
So,how (type of project) then insert, compile run basic source code in a new project?

thanks

[KillerSmath]

@signalK
Hi there.
If you are interested in learn QML, i can suggest you a good eBook to start your learning.

https://qmlbook.github.io/ <- Qt5 Cadaques eBook
http://doc.qt.io/qt-5/qmlfirststeps.html <- First Step in QML Documentation

[signalK]

Ok !
after creating a new project "try":
file> new file or project> projects: Application> Qt quick application-Empty> choose build sydtem: qmake> etc ...> close
I, in the editor, clicked on essai.pro to show the source code that I totally delete and replace it with basic like this:

import QtQuick 2.3

Rectangle {
width: 200
height: 100
color: "red"

Text {
    anchors.centerIn: parent
    text: "Hello, World!"
}

}
it has compiled and executed well but by changing some values, nothing has changed!
Why?

thanks

[dheerendra]

which values you changed ? Did the program work when u created the "try" application ? Did it show window ?

[KillerSmath]

@signalK

after creating a new project "try":
file> new file or project> projects: Application> Qt quick application-Empty> choose build sydtem: qmake> etc ...> close
I, in the editor, clicked on essai.pro to show the source code that I totally delete and replace it with basic like this:

.pro files will say how you project must be built. -> Read more: http://doc.qt.io/qt-5/qmake-project-files.html

myproject.pro file

TEMPLATE = app # what type of project is it.

QT += qml quick # what modules are necessary in this project

SOURCES += main.cpp # what sources files are necessary to compile

RESOURCES += qml.qrc # "index file"

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

If you want to customize your window, you should to change the main.qml because this file is loaded by QmlEngine (in main.cpp or main.py) to create a window.

Example of a customized main.qml file

import QtQuick 2.3
import QtQuick.Window 2.3

Window {
    visible: true
    width: 600
    height: 450
    minimumWidth: 210
    minimumHeight: 110
    title: "My First Application"
    // change color of background
    color: "steelblue"

    Rectangle{
        width: 200
        height: 100
        // change color of rectangle
        color: "darkslateblue"
        // anchors in center of father (window)
        anchors.centerIn: parent
        // border settings
        border.color: "black"
        border.width: 2

        Text{
            text: "Hello World!"
            // anchors in center of father (rectangle)
            anchors.centerIn: parent
            // Font Settings
            color: "white"
            font.family: "Arial"
            font.pixelSize: 11
        }
    }
}

> Where is the main.qml file ?

[signalK]

sorry
my problem is solved