Aspose::Cells::DigitalSignatures::DigitalSignatureCollection class
Contents
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]DigitalSignatureCollection class
Provides a collection of digital signatures attached to a document.
class DigitalSignatureCollection
Methods
| Method | Description |
|---|---|
| Add(const DigitalSignature& digitalSignature) | Add one signature to DigitalSignatureCollection. |
| DigitalSignatureCollection() | The constructor of DigitalSignatureCollection. |
| DigitalSignatureCollection(DigitalSignatureCollection_Impl* impl) | Constructs from an implementation object. |
| DigitalSignatureCollection(const DigitalSignatureCollection& src) | Copy constructor. |
| GetEnumerator() | Get the enumerator for DigitalSignatureCollection, this enumerator allows iteration over the collection. |
| IsNull() const | Checks whether the implementation object is nullptr. |
| explicit operator bool() const | operator bool() |
| operator=(const DigitalSignatureCollection& src) | operator= |
| ~DigitalSignatureCollection() | Destructor. |
Fields
| Field | Description |
|---|---|
| _impl | The implementation object. |
Examples
Aspose::Cells::Startup();
//The following example shows how to validate digital signature.
//workbook from a signed source file
Workbook signedWorkbook(u"signedFile.xlsx");
//wb.IsDigitallySigned is true when the workbook is signed already.
std::cout<<signedWorkbook.IsDigitallySigned() << std::endl;
//get digitalSignature collection from workbook
DigitalSignatureCollection existingDsc = signedWorkbook.GetDigitalSignature();
Enumerator<DigitalSignature> en = existingDsc.GetEnumerator();
while (en.MoveNext())
{
DigitalSignature existingDs = (DigitalSignature)en.GetCurrent();
std::cout << "existingDs.Comments : " << existingDs.GetComments().ToUtf8() << std::endl;
Date dt = existingDs.GetSignTime();
std::cout << "existingDs.SignTime : " << dt.year << "-" << dt.month << "-" << dt.day << " " << dt.hour << ":" << dt.minute << ":" << dt.second << std::endl;
std::cout << "existingDs.IsValid = " << (existingDs.IsValid() ? "True" : "False") << std::endl;
}
Aspose::Cells::Cleanup();
See Also
- Namespace Aspose::Cells::DigitalSignatures
- Library Aspose.Cells for C++