Check whether a data type is allowed
dip_Error dip_DataTypeAllowed( dataType, allow, allowedTypes, allowed )
This function checks whether the dataType is (or is not) in the set of data types specified by allowedTypes. If allow is DIP_TRUE, the data type should be in this set. If allow is DIP_FALSE, the data type should not be in this set. If the allowed parameter is zero, the routine returns dip_errorDataTypeNotSupported if the required condition is not satisfied. If nonzero, it should point to a boolean variable. This boolean variable will be set to DIP_TRUE if the condition is satisfied, or DIP_FALSE if not.
| Data type | Name | Description |
| dip_DataType | dataType | The data type to check |
| dip_Boolean | allow | DIP_TRUE: check if the data type is included. DIP_FALSE: check if the data type is not included |
| dip_DataTypeProperties | allowedTypes | The set of data types to check against, see DataTypeGetInfo |
| dip_Boolean * | allowed | Pointer to a boolean to store the answer, or 0 to indicate that dip_errorDataTypeNotSupported should be returned if the condition is not satisfied |