Namespace containing Windows COM variant types. More...

Variables
constexpr VARTYPE	VT_EMPTY
	The type for a default constructed variant.

constexpr VARTYPE	VT_NULL
	A database-style NULL value.

constexpr VARTYPE	VT_I2
	A 16-bit integer.

constexpr VARTYPE	VT_I4
	A 32-bit integer.

constexpr VARTYPE	VT_R4
	A 32-bit IEEE floating point value.

constexpr VARTYPE	VT_R8
	A 64-bit IEEE floating point value.

constexpr VARTYPE	VT_CY
	A currency value.

constexpr VARTYPE	VT_DATE
	A date and time value.

constexpr VARTYPE	VT_BSTR
	A UTF-16 string.

constexpr VARTYPE	VT_DISPATCH
	A COM dispatch interface pointer.

constexpr VARTYPE	VT_ERROR
	An error code.

constexpr VARTYPE	VT_BOOL
	A Boolean value.

constexpr VARTYPE	VT_VARIANT
	A pointer to another variant.

constexpr VARTYPE	VT_UNKNOWN
	A pointer to a generic COM object.

constexpr VARTYPE	VT_DECIMAL
	A fixed point decimal.

constexpr VARTYPE	VT_I1
	An 8-bit integer.

constexpr VARTYPE	VT_UI1
	An unsigned 8-bit integer.

constexpr VARTYPE	VT_UI2
	An unsigned 16-bit integer.

constexpr VARTYPE	VT_UI4
	A 32-nit unsigned integer.

constexpr VARTYPE	VT_I8
	A 64-bit integer.

constexpr VARTYPE	VT_UI8
	An unsigned 64-bit integer.

constexpr VARTYPE	VT_INT
	An integer.

constexpr VARTYPE	VT_UINT
	An unsigned integer.

constexpr VARTYPE	VT_RECORD
	A user defined record.

constexpr VARTYPE	VT_ARRAY
	Flag for an array of values.

constexpr VARTYPE	VT_TYPEMASK
	Bit mask to extract the base type from a type.

Detailed Description

Namespace containing Windows COM variant types.

The constants defined in this namespace are equivalent to the values of the Windows enum VARENUM. The constants can be used to specify types vor xentara::utils::windows::com::Variant.

Variable Documentation

◆ VT_ARRAY

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_ARRAY

constexpr

Flag for an array of values.

This value is ORed together with another type to indicate that the value is an array. The native type for arrays is always const SAFEARRAY &, regardless of the element type.

See also: VARENUM; IRecordInfo

◆ VT_BOOL

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_BOOL

constexpr

A Boolean value.

The native type for this variant type is bool.

See also: VARENUM

◆ VT_BSTR

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_BSTR

constexpr

A UTF-16 string.

The native type for this variant type is std::wstring_view.

See also: VARENUM

◆ VT_CY

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_CY

constexpr

A currency value.

The native type for this variant type is the currency union type CY.

See also: VARENUM

◆ VT_DATE

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_DATE

constexpr

A date and time value.

The native type for this variant type is the Windows type DATE, which is just a double.

See also: VARENUM; See section 2.2.25: DATE in the Windows Open Specifications at docs.microsoft.com

◆ VT_DECIMAL

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_DECIMAL

constexpr

A fixed point decimal.

The native type for this variant type is .

See also: VARENUM

◆ VT_DISPATCH

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_DISPATCH

constexpr

A COM dispatch interface pointer.

The native type for this variant type is IDispatch *.

See also: VARENUM

◆ VT_EMPTY

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_EMPTY

constexpr

The type for a default constructed variant.

The native type for this variant type is void.

See also: VARENUM

◆ VT_ERROR

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_ERROR

constexpr

An error code.

The native type for this variant type is the Windows type HRESULT

See also: VARENUM; winerror.h header in the Programming reference for the Win32 API at docs.microsoft.com.

◆ VT_I1

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_I1

constexpr

An 8-bit integer.

The native type for this variant type is std::int8_t.

See also: VARENUM

◆ VT_I2

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_I2

constexpr

A 16-bit integer.

The native type for this variant type is std::int16_t.

See also: VARENUM

◆ VT_I4

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_I4

constexpr

A 32-bit integer.

The native type for this variant type is std::int32_t.

See also: VARENUM

◆ VT_I8

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_I8

constexpr

A 64-bit integer.

The native type for this variant type is std::int64_t.

See also: VARENUM

◆ VT_INT

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_INT

constexpr

An integer.

The native type for this variant type is int.

See also: VARENUM

◆ VT_NULL

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_NULL

constexpr

A database-style NULL value.

The native type for this variant type is void.

See also: VARENUM

◆ VT_R4

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_R4

constexpr

A 32-bit IEEE floating point value.

The native type for this variant type is float.

See also: VARENUM

◆ VT_R8

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_R8

constexpr

A 64-bit IEEE floating point value.

The native type for this variant type is double.

See also: VARENUM

◆ VT_RECORD

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_RECORD

constexpr

A user defined record.

The native type for this variant type is std::pair<void *, IRecordInfo *>.

See also: VARENUM; IRecordInfo

◆ VT_TYPEMASK

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_TYPEMASK

constexpr

Bit mask to extract the base type from a type.

This value can be used as a bit mask to remove the VT_ARRAY flag from a type.

◆ VT_UI1

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_UI1

constexpr

An unsigned 8-bit integer.

The native type for this variant type is std::uint8_t.

See also: VARENUM

◆ VT_UI2

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_UI2

constexpr

An unsigned 16-bit integer.

The native type for this variant type is std::uint16_t.

See also: VARENUM

◆ VT_UI4

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_UI4

constexpr

A 32-nit unsigned integer.

The native type for this variant type is std::uint_32_t.

See also: VARENUM

◆ VT_UI8

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_UI8

constexpr

An unsigned 64-bit integer.

The native type for this variant type is std::uint64_t.

See also: VARENUM

◆ VT_UINT

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_UINT

constexpr

An unsigned integer.

The native type for this variant type is unsigned int.

See also: VARENUM

◆ VT_UNKNOWN

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_UNKNOWN

constexpr

A pointer to a generic COM object.

The native type for this variant type is IUnknown.

See also: VARENUM

◆ VT_VARIANT

constexpr VARTYPE xentara::utils::windows::com::variantTypes::VT_VARIANT

constexpr

A pointer to another variant.

The native type for this variant type is const VARIANT &.

See also: VARENUM

Variables

Detailed Description

Variable Documentation

◆ VT_ARRAY

◆ VT_BOOL

◆ VT_BSTR

◆ VT_CY

◆ VT_DATE

◆ VT_DECIMAL

◆ VT_DISPATCH

◆ VT_EMPTY

◆ VT_ERROR

◆ VT_I1

◆ VT_I2

◆ VT_I4

◆ VT_I8

◆ VT_INT

◆ VT_NULL

◆ VT_R4

◆ VT_R8

◆ VT_RECORD

◆ VT_TYPEMASK

◆ VT_UI1

◆ VT_UI2

◆ VT_UI4

◆ VT_UI8

◆ VT_UINT

◆ VT_UNKNOWN

◆ VT_VARIANT