CTL_USAGE structure (wincrypt.h)
The CTL_USAGE structure contains an array of object identifiers (OIDs) for Certificate Trust List (CTL) extensions. CTL_USAGE structures are used in functions that search for CTLs for specific uses.
Syntax
typedef struct _CTL_USAGE {
DWORD cUsageIdentifier;
LPSTR *rgpszUsageIdentifier;
} CTL_USAGE, *PCTL_USAGE, CERT_ENHKEY_USAGE, *PCERT_ENHKEY_USAGE;
Members
cUsageIdentifier
Number of elements in the rgpszUsageIdentifier member array.
rgpszUsageIdentifier
Array of object identifiers (OIDs) of CTL extensions.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Header | wincrypt.h |