GEOS SDK TechDocs
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4.4 Using Value Ratios
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4.6 Using Ranges in GenValues
MSG_GEN_VALUE_GET_TEXT_FILTER
One of the GenValue's components is a text field to enter values into. When this visual component is being built, the GenValue will send
MSG_GEN_VALUE_GET_TEXT_FILTER
to itself to set up a text filter. A text filter allows a textual object to accept or reject certain characters on a number of bases. The default
VisTextFilter
provides numeric-only filtering with no spaces and no tabs on GVDF_INTEGER or GVDF_DECIMAL display formats; no tabs on distance unit display formats.
You may set up your own filter by intercepting this message and returning a
VisTextFilter
of your own choosing.
VisTextFilter MSG_GEN_VALUE_GET_TEXT_FILTER();
This message retrieves the text filtering in use on a GenValue object. By default, GenValues use numeric-only filtering with no spaces and no tabs for numbers and a filtering of no tabs for distance units.
Source: Unrestricted. This message is normally sent by a GenValue to itself when building its textual component.
Destination: Any GenValue object.
Parameters: None.
Return:
VisTextFilter
in use by the textual portion of the GenValue.
Interception: Usually, you will want to intercept this message if you subclass
GenValueClass
and provide your own custom filtering.
GEOS SDK TechDocs
|
| 4.4 Using Value Ratios
| 4.6 Using Ranges in GenValues