2.2.1.41 CTableVariant
The CTableVariant structure contains the fixed-size portion of a variable length data type stored in the CPMGetRowsOut message.
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1 |
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2 |
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3 |
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vType |
reserved1 |
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reserved2 |
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Count (variable) |
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... |
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Offset (variable) |
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... |
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vType (2 bytes): A type indicator, indicating the type of vValue. It MUST be one of the values under the vType field, as specified in section 2.2.1.1.
reserved1 (2 bytes): Not used. Can be set to any arbitrary value when sent and it MUST be ignored on receipt.
reserved2 (4 bytes): Not used. Can be set to any arbitrary value when sent and it MUST be ignored on receipt.
Count (variable): Element count. This field is 4 bytes and is present only if the vType is a VT_VECTOR.
Offset (variable): Only applies to string type (VT_VARIANT, VT_LPSTR, VT_LPWSTR, VT_BSTR, or VT_VECTORs or VT_ARRAYs of those base types). This MUST be a 32-bit value (4 bytes long) if 32-bit offsets are being used (per the rules in section 2.2.3.12), or a 64-bit value (8 bytes long) if 64-bit offsets are being used.
Value: Other data types should put value in place rather than count/offset.
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VT_DECIMAL (see section 2.2.1.1.1.1) type: Size of value field is 4 bytes.
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All other types: Size of value field is 8 bytes.
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