GtkRcPropertyParser for use with gtkSettingsInstallPropertyParser
or gtkWidgetClassInstallStylePropertyParser which parses flags. gtkRcPropertyParseFlags(pspec, gstring)pspecgstringcharacter to be parsedTRUE if gstring could be parsed and property.value
has been set to the resulting flags value.property.valueR object which must hold flags values."( flag1 | flag2 | ... )".