diff options
Diffstat (limited to 'doc/src/declarative/basictypes.qdoc')
| -rw-r--r-- | doc/src/declarative/basictypes.qdoc | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/doc/src/declarative/basictypes.qdoc b/doc/src/declarative/basictypes.qdoc index 0e8056a19a..1c412db143 100644 --- a/doc/src/declarative/basictypes.qdoc +++ b/doc/src/declarative/basictypes.qdoc @@ -439,7 +439,20 @@ } \endqml - The \c variant type can also hold: + A \c variant type property can also hold an image or pixmap. + A \c variant which contains a QPixmap or QImage is known as a + "scarce resource" and the declarative engine will attempt to + automatically release such resources after evaluation of any JavaScript + expression which requires one to be copied has completed. + + Clients may explicitly release such a scarce resource by calling the + "destroy" method on the \c variant property from within JavaScript. They + may also explicitly preserve the scarce resource by calling the + "preserve" method on the \c variant property from within JavaScript. + For more information regarding the usage of a scarce resource, please + see \l{Scarce Resources in JavaScript}. + + Finally, the \c variant type can also hold: \list \o An array of \l {QML Basic Types}{basic type} values |