wtypes.h header

This header is used by multiple technologies. For more information, see:

• Automation
• Component Object Model (COM)
• Developer Notes
• Structured Storage
• Windows Property System

wtypes.h contains the following programming interfaces:

Structures

CSPLATFORM Contains an operating system platform and processor architecture.
CY The CY structure is useful for calculations involving money, or for any fixed-point calculation where accuracy is particularly important.
DECIMAL The DECIMAL structure represents a decimal data type that provides a sign and scale for a number.
PROPERTYKEY Specifies the FMTID/PID identifier that programmatically identifies a property. Replaces SHCOLUMNID.
QUERYCONTEXT Contains a list of attributes used to look up a class implementation.

Enumerations

DVASPECT Specifies the desired data or view aspect of the object when drawing or getting data.
STATFLAG Indicate whether the method should try to return a name in the pwcsName member of the STATSTG structure.
STGC Specify the conditions for performing the commit operation in the IStorage::Commit and IStream::Commit methods.
STGMOVE Indicate whether a storage element is to be moved or copied.
TYSPEC Specifies a mapping for a class ID.
VARENUM Specifies the variant types.