Name 

Description 

ARR_DISPATCH 

Used to test whether the variant array contains IDispatch elements. 

ARR_FIXEDSIZE 

Used to test whether the variant array is of fixed size. 

ARR_NONE 

Specifies that a variant array has no flags set. 

ARR_OLESTR 

Used to test whether the variant array contains BSTR elements. 

ARR_UNKNOWN 

Used to test whether the variant array contains IUnknown elements. 

ARR_VARIANT 

Used to test whether the variant array contains Variant elements. 

CMaxArrayVarType 

CMaxArrayVarType gives the upper bound of the CVarTypeToElementInfo array. 

CMinArrayVarType 

CMinArrayVarType gives the lower bound of the CVarTypeToElementInfo array. 

CVarTypeToElementInfo 

This constant is internally used by the SafeArrayCreate function. 

GenericOperations 

Specifies whether the implementation for the variant operation routines is cross-platform. 

GenericSafeArrays 

Specifies whether the implementation for the safe array routines is cross-platform. 

GenericSafeArrayUsesLibC 

Specifies whether the implementation for the safe array routines uses the Libc unit. 

GenericVariants 

Specifies whether the implementation for the variant support routines is cross-platform. 

GenericVarUtils 

Specifies whether the implementation for the variant-manipulating routines is cross-platform. 

VAR_ARRAYISLOCKED 

Specifies that the given array is locked. 

VAR_BADINDEX 

Indicates that the given index is out of range. 

VAR_BADVARTYPE 

Specifies that the variant type of the input parameter is invalid. 

VAR_CMP_EQ 

VAR_CMP_EQ specifies that the variants are equal, after a call to the function referenced by the VarCmp variable. 

VAR_CMP_GT 

VAR_CMP_GT specifies that the first variant is greater than the second, after a call to the function referenced by the VarCmp variable. 

VAR_CMP_LT 

VAR_CMP_LT specifies that the first variant is lower than the second, after a call to the function referenced by the VarCmp variable. 

VAR_CMP_NULL 

VAR_CMP_NULL specifies that either one of the variants is nil, after a call to the function referenced by the VarCmp variable. 

VAR_EXCEPTION 

Specifies that the application raised an exception. 

VAR_INVALIDARG 

Specifies that either one of the arguments is invalid. 

VAR_LOCALE_USER_DEFAULT 

Specifies the default locale for the user or process. 

VAR_NOTIMPL 

Specifies that the operation is not implemented. 

VAR_OK 

Specifies that a variant operation was successful. 

VAR_OUTOFMEMORY 

Specifies that there is not enough memory to complete the operation. 

VAR_OVERFLOW 

Specifies that a variant operation caused an overflow. 

VAR_PARAMNOTFOUND 

Indicates that there is no correspondence between the parameter DISPIDs and a parameter of the method. 

VAR_TYPEMISMATCH 

Specifies that the argument cannot be cast to the specified type. 

VAR_UNEXPECTED 

Indicates that an unexpected error occurred.