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| label | **ULONG(**[//initial value//]**)** | [,**DIM( )**] [,**OVER( )**] [,**NAME( )**] [,**EXTERNAL**] [,**DLL**] [,**STATIC**] |
|  |  | [,**THREAD**] [,**AUTO**] [,**PRIVATE**] [,**PROTECTED**] |

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| **ULONG** | A four-byte unsigned integer. |

**Format:     magnitude **

**       |...................|**

**Bits:  31                  0**

**Range: 0 to 4,294,967,295**

| //initial value// | A numeric constant. If omitted, the initial value is zero, unless the AUTO attribute is present. |
| **DIM** | Dimension the variable as an array. |
| **OVER** | Share a memory location with another variable. |
| **NAME** | Specify an alternate, "external" name for the field. |
| **EXTERNAL** | Specify the variable is defined, and its memory is allocated, in an external library. Not valid within FILE, QUEUE, or GROUP declarations. |
| **DLL** | Specify the variable is defined in a .DLL. This is required in addition to the EXTERNAL attribute. |
| **STATIC** | Specify the variable's memory is permanently allocated. |
| **THREAD** | Specify memory for the variable is allocated once for each execution thread. Also implicitly adds the STATIC attribute on Procedure Local data. |
| **AUTO** | Specify the variable has no //initial value//. |
| **PRIVATE** | Specify the variable is not visible outside the module containing the CLASS methods. Valid only in a CLASS. |
| **PROTECTED** | Specify the variable is not visible outside base CLASS and derived CLASS methods. Valid only in a CLASS. |

**ULONG** declares a four-byte unsigned integer, using the Intel 8086 long integer format. There is no sign bit in this configuration.

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The equivalent of a Win32 ULONG in Clarion.NET is the [[claulong four byte unsigned integer .htm|CLAULONG]] type. Use of ULONG in Clarion.NET programs are equivalent to the unsigned INT64 .NET data type.

**Example:**

**Count1 ULONG                        !Declare four-byte unsigned integer**

**Count2 ULONG,OVER(Count1)           !Declare OVER four-byte unsigned integer**

**Count3 ULONG,DIM(4)                 !Declare it an array of 4 unsigned longs**

**Count4 ULONG(5)                     !Declare with initial value**

**Count5 ULONG,EXTERNAL               !Declare as external**

**Count6 ULONG,EXTERNAL,DLL           !Declare as external in a .DLL**

**Count7 ULONG,NAME('SixCount')       !Declare with external name**

**ExampleFile FILE,DRIVER('Btrieve')  !Declare a file**

**Record       RECORD**

**Count8        ULONG,NAME('Counter') !Declare with external name**

**             END**

**            END**