Variant Storage Types (Magic xpa 4.x)

Table 1 – Basic Types

The following table shows the VARTYPE values that indicate valid Variant types.

Example:
The 3 value represents a signed 4-byte integer value, which is indicated by VT_I4,

Table 2 – Arrays and References

The following values are used for Bit-Wise Logical OR operations. These values should be used in addition to the values in Table 1. They are not valid alone.

Note:
The symbol | is used in the documentation to indicate a Bit-Wise Logical OR operation and is common when indicating variants, such as VT_I2|VT_BYREF. When you use the values from Table 2, you should use the arithmetical ADD operation, instead of the symbol |.

Example for Array

8195 represents an array that is a signed 4-byte integer,
indicated by VT_I4|VT_ARRAY (8195 is a result of 3 + 8192).

Example for “By Reference”

16387 represents a reference that is a signed 4-byte integer,
indicated by VT_I4|VT_BYREF (16387 is a result of 3 + 16384).

List of Exceptions

1. VT_VARIANT cannot be used alone and must be used with a value from Table 2.

2. The following combinations are not valid:

VT_NULL | VT_BYREF

VT_EMPTY | VT_BYREF

VT_NULL | VT_ARRAY

VT_EMPTY | VT_ARRAY