SWbemRpnQueryToken structure (wmiutils.h)
The SWbemRpnQueryToken structure represents the query tokens in a WMIQ_ANALYSIS_RPN_SEQUENCE type query. An example of a query token is the following: j > 4.
Syntax
typedef struct tag_SWbemRpnQueryToken {
ULONG m_uVersion;
ULONG m_uTokenType;
ULONG m_uSubexpressionShape;
ULONG m_uOperator;
SWbemQueryQualifiedName *m_pRightIdent;
SWbemQueryQualifiedName *m_pLeftIdent;
ULONG m_uConstApparentType;
SWbemRpnConst m_Const;
ULONG m_uConst2ApparentType;
SWbemRpnConst m_Const2;
LPCWSTR m_pszRightFunc;
LPCWSTR m_pszLeftFunc;
} SWbemRpnQueryToken;
Members
m_uVersion
Unused. Always 1.
m_uTokenType
Type of token this instance represents.
WMIQ_RPN_TOKEN_EXPRESSION (1)
This token is an expression, for example, J = 7.
WMIQ_RPN_TOKEN_AND (2)
This token is a logical AND.
WMIQ_RPN_TOKEN_OR (3)
This token is a logical OR.
WMIQ_RPN_TOKEN_NOT (4)
This token is a logical NOT.
m_uSubexpressionShape
If the m_uTokenType member is WMIQ_RPN_TOKEN_EXPRESSION, m_uSubexpressionShape bitmask value specifies the shape of the expression.
WMIQ_RPN_LEFT_PROPERTY_NAME (1 (0x1))
Left argument is a property name.
WMIQ_RPN_RIGHT_PROPERTY_NAME (2 (0x2))
Right argument is a property name.
WMIQ_RPN_CONST2 (4 (0x4))
Has a second constant. Used with "BETWEEN" clauses.
WMIQ_RPN_CONST (8 (0x8))
Has a constant.
WMIQ_RPN_RELOP (16 (0x10))
The field m_uOperator is not 0 (zero).
WMIQ_RPN_LEFT_FUNCTION (32 (0x20))
Left argument is a function.
WMIQ_RPN_RIGHT_FUNCTION (64 (0x40))
Right argument is a function.
m_uOperator
This field can have the value 0 (zero), or one of the following values.
WMIQ_RPN_OP_UNDEFINED (0 (0x0))
The operator is undefined or unknown.
WMIQ_RPN_OP_EQ (1 (0x1))
The operator is equal-to (=).
WMIQ_RPN_OP_NE (2 (0x2))
The operator is not-equal-to (<>).
WMIQ_RPN_OP_GE (3 (0x3))
The operator is greater-than-or-equal-to (>=).
WMIQ_RPN_OP_LE (4 (0x4))
The operator is less-than-or-equal-to (<=).
WMIQ_RPN_OP_LT (5 (0x5))
The operator is less-than (<) .
WMIQ_RPN_OP_GT (6 (0x6))
The operator is greater-than (>).
WMIQ_RPN_OP_LIKE (7 (0x7))
The operator is LIKE.
WMIQ_RPN_OP_ISA (8 (0x8))
The operator is ISA.
WMIQ_RPN_OP_ISNOTA (9 (0x9))
The operator is ISNOTA.
WMIQ_RPN_OP_ISNULL (10 (0xA))
The operator is ISNULL.
WMIQ_RPN_OP_ISNOTNULL (11 (0xB))
The operator is ISNOTNULL.
m_pRightIdent
If there are two property names in a token, m_pRightIdent is used to identify the right property name.
m_pLeftIdent
If there are two property names in a token m_pLeftIdent is used to identify the left property name. If only one property name is present, it appears in this member.
m_uConstApparentType
Apparent data type of the constant.
VT_I4 (3 (0x3))
Long data type.
VT_R8 (5 (0x5))
Double precision floating-point data type.
VT_BOOL (11 (0xB))
Boolean data type
VT_UI4 (19 (0x13))
Unsigned long data type.
VT_I8 (20 (0x14))
Signed 64-bit integer.
VT_UI8 (21 (0x15))
Unsigned 64-bit integer.
VT_LPWSTR (31 (0x1F))
LPCWSTR data type.
m_Const
Value of the first constant. For more information, see SWbemRpnConst.
m_uConst2ApparentType
Type of second constant. The fields m_uConst2ApparentType and m_uConst2 are used only for BETWEEN phrases.
VT_I4 (3 (0x3))
Long data type.
VT_R8 (5 (0x5))
Double precision floating-point data type.
VT_BOOL (11 (0xB))
Boolean data type.
VT_UI4 (19 (0x13))
Unsigned long data type.
VT_I8 (20 (0x14))
Signed 64-bit integer.
VT_UI8 (21 (0x15))
Unsigned 64-bit integer.
VT_LPWSTR (31 (0x1F))
LPCWSTR data type.
m_Const2
Value of the second constant. The fields m_uConst2ApparentType and m_uConst2 are used only for BETWEEN phrases. For more information, see SWbemRpnConst.
m_pszRightFunc
Specifies a function on the right of the operator in a WHERE clause. If there is no function on the right of the operator in this token, this field is NULL.
m_pszLeftFunc
Specifies a function on the left of the operator in a WHERE clause. If there is no function on the left of the operator in this token, this field is NULL.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista |
| Minimum supported server | Windows Server 2008 |
| Header | wmiutils.h |