Qt Reference Documentation

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# QML Basic Types

QML has a set of primitive types, as listed below, that are used throughout the QML Elements.

action | The action type has all the properties of QAction.
bool | A boolean is a binary true/false value.
color | A color is a standard color name in quotes.
date | A date is specified as "YYYY-MM-DD".
double | A double number has a decimal point and is stored in double precision.
enumeration | An enumeration type consists of a set of named values.
font | A font type has the properties of a QFont.
int | An integer is a whole number, e.g. 0, 10, or -20.
list | A list of objects.
point | A point type has x and y attributes.
real | A real number has a decimal point, e.g. 1.2 or -29.8.
rect | A rect type has x, y, width and height attributes.
size | A size type has width and height attributes
string | A string is a free form text in quotes, e.g. "Hello world!".
time | A time is specified as "hh:mm:ss".
url | A URL is a resource locator, like a file name.
variant | A variant type is a generic property type.
vector3d | A vector3d type has x, y, and z attributes.

To create additional types, such as data types created in C++, read the Extending QML Functionalities using C++ article.