GType
GType is used in GtkListStore and
GtkTreeStore to determine the type of
the column in the data table. It is also used for custom signals
when defining the return values and accepted parameters for callbacks.
The GType controls what type of data may be stored in
the particular column, how the default
GtkCellRenderer displays the value in
the view, even what user defined signal callbacks can accept and return.
The typing is very strict. It is generally safest to make
sure you cast your variables properly. In addition, every object
that is an instanceof Gobject will have a type in a class constant called
gtype. This allows you to store widgets or pixbufs in data stores, or
use them for parameters and return values with custom signals.
Value | Symbolic name | Description | | 0 | Gobject::TYPE_INVALID |
| | 4 | Gobject::TYPE_NONE |
| | 8 | Gobject::TYPE_INTERFACE |
| | 12 | Gobject::TYPE_CHAR |
| | 20 | Gobject::TYPE_BOOLEAN |
A boolean value, true or false
| | 32 | Gobject::TYPE_LONG |
A big integer number.
| | 48 | Gobject::TYPE_ENUM |
| | 52 | Gobject::TYPE_FLAGS |
| | 60 | Gobject::TYPE_DOUBLE |
A decimal number with a fraction dot in it.
| | 64 | Gobject::TYPE_STRING |
A normal string.
| | 68 | Gobject::TYPE_POINTER |
| | 72 | Gobject::TYPE_BOXED |
| | 76 | Gobject::TYPE_PARAM |
| | 80 | Gobject::TYPE_OBJECT |
| | 137706104 | Gobject::TYPE_PHP_VALUE |
Any PHP variable content.
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User Contributed Notes
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