VARTYPE Property

PLBCMP GUI Only

The VARTYPE property identifies the VARIANT data type as allowed for conversion between PLB data types and applicable Windows variant types. The property uses the following format:

VARTYPE={value}

Note the following:

1. VARTYPE may be used in CREATE, SETPROP, or GETPROP statements of a VARIANT object.

2. {value} is a decimal number, a Numeric Variable, a Character Variable, an AUTOMATION object, a VARIANT object, an Expression, or a keyword as defined in PLBEQU.INC. The supported values and keywords are:

 

Value	Keyword	The VARIANT type is ...
0	$VT_EMPTY	nothing.
1	$VT_NULL	SQL style null.
2	$VT_I2	two byte signed integer.
3	$VT_I4	four byte signed integer.
4	$VT_R4	four byte real.
5	$VT_R8	eight byte real.
6	$VT_CY	currency.
7	$VT_DATE	date
8	$VT_BSTR	OLE automation string.
9	$VT_DISPATCH	Idispatch FAR *
10	$VT_ERROR	SCODE.
11	$VT_BOOL	Boolean - True = -1, False = 0
12	$VT_VARIANT	VARIANT FAR *
13	$VT_UNKNOWN	unknown type.
16	$VT_I1	one byte signed integer
17	$VT_UI1	unsigned character.
18	$VT_UINT16	unsigned 16 bit integer
18	$VT_UI2	two byte unsigned integer
19	$VT_UINT32	unsigned 32 bit integer
19	$VT_UI4	four byte unsigned integer
20	$VT_INT64	sixty four bit signed integer
20	$VT_I8	eight byte signed integer
21	$VT_UINT64	sixty four bit signed integer
21	$VT_UI8	eight byte unsigned integer
0x2000	$VT_ARRAY	Variant Array

 

3. The $VT_ARRAY value can be added with the other VARIANT types above to generate a variant array. Only single dimension variant arrays may be created.

4. The $VT_ARRAY value cannot be used in a SETPROP operation. This will cause a runtime O132 error to occur.

See Also: Object Properties, Object IO Instructions, Object Definitions