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(Unicode C) PDF List Unsigned Signature FieldsSee more PDF Signatures ExamplesDemonstrates how to list the unsigned signature fields in a PDF. Note: This example requires Chilkat v9.5.0.90 or greater.
#include <C_CkPdfW.h> #include <C_CkJsonObjectW.h> void ChilkatSample(void) { HCkPdfW pdf; BOOL success; HCkJsonObjectW json; const wchar_t *strVal; int i; int count_i; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. pdf = CkPdfW_Create(); // Load a PDF containing 2 remaining unsigned signature fields: success = CkPdfW_LoadFile(pdf,L"qa_data/pdf/doctor_patient_parent.pdf"); if (success == FALSE) { wprintf(L"%s\n",CkPdfW_lastErrorText(pdf)); CkPdfW_Dispose(pdf); return; } // Note: This example requires Chilkat v9.5.0.90 or greater. json = CkJsonObjectW_Create(); CkPdfW_GetUnsignedSigFields(pdf,json); CkJsonObjectW_putEmitCompact(json,FALSE); wprintf(L"%s\n",CkJsonObjectW_emit(json)); // Result: // { // "unsignedSigField": [ // "doctor_signature", // "parent_signature" // ] // } // To iterate over the field names: i = 0; count_i = CkJsonObjectW_SizeOfArray(json,L"unsignedSigField"); while (i < count_i) { CkJsonObjectW_putI(json,i); strVal = CkJsonObjectW_stringOf(json,L"unsignedSigField[i]"); wprintf(L"%s\n",strVal); i = i + 1; } CkPdfW_Dispose(pdf); CkJsonObjectW_Dispose(json); } |
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