Routines (alphabetical) > Routines: C > CDF Routines > CDF_VARGET1

# CDF_VARGET1

The CDF_VARGET1 procedure reads one value from a CDF file variable.

## Examples

See the example for CDF_VARCREATE.

## Syntax

CDF_VARGET1, Id, Variable, Value [, OFFSET=vector] [, REC_START=record] [, /STRING{data in CDF file must be type CDF_CHAR or CDF_UCHAR}] [, /ZVARIABLE]

## Arguments

### Id

The CDF ID, returned from a previous call to CDF_OPEN or CDF_CREATE.

### Variable

A string containing the name or an integer containing the index of the variable being inquired.

### Value

A named variable in which the value of the variable is returned.

## Keywords

### OFFSET

A vector specifying the array indices within the specified record(s) at which to begin reading. OFFSET is a 1-dimensional array containing one element per CDF dimension. The default value is 0 for each dimension.

### REC_START

The record number at which to start reading. The default is 0.

### STRING

Set this keyword to return CDF_CHAR and CDF_UCHAR data from the CDF file into Value as string data rather than byte data. This keyword is ignored if the data in the CDF file is not of type CDF_CHAR or CDF_UCHAR.

### ZVARIABLE

If Variable is a variable ID (as opposed to a variable name) and the variable is a zVariable, set this flag to indicate that the variable ID is a zVariable ID. The default is to assume that Variable is an rVariable ID.

## Examples

See the example for CDF_VARCREATE.

## Version History

Pre 4.0 | Introduced