IOpcSignaturePartReference::GetDigestValue method
Gets the digest value that is calculated for part content of the referenced part when the part is signed.
Syntax
HRESULT GetDigestValue( [out] UINT8 **digestValue, [out] UINT32 *count );
Parameters
- digestValue [out]
-
A pointer to a buffer that contains the digest value that is calculated using the specified digest method; the method is applied to part content of the referenced part when the part is signed.
- count [out]
-
The size of the digestValue buffer.
If the referenced part has not been signed yet, count is 0.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
|
At least one of the digestValue, and count parameters is NULL. |
Remarks
This method allocates memory used by the buffer returned in digestValue. If the method succeeds, call the CoTaskMemFree function to free the memory.
Thread Safety
Packaging objects are not thread-safe.
For more information, see the Getting Started with the Packaging API.
Requirements
|
Minimum supported client | Windows 7 [desktop apps only] |
|---|---|
|
Minimum supported server | Windows Server 2008 R2 [desktop apps only] |
|
Header |
|
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IDL |
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See also
- IOpcSignaturePartReference
- Overviews
- Getting Started with the Packaging API
- Packaging API Programming Guide
- Reference
- Core Packaging Interfaces
- Packaging Digital Signature Interfaces
- Packaging Interfaces
- Packaging API Reference
- Packaging API Samples