> In this way can be used curField.GetType()
> or one can manually read FT, Ff and other keys
> by traversing through "Parent path" if specified key in actual node is
> missing (as pdf reference does not says that also Parent
> cannot have another Parent and so on).
Thank you very much Michal! That was most helpful and I found a solution.
Since all radio buttons in a group share the same parent, I can now also
extract the grouping information.
For everyone facing the same problem, see code here:
for (int i = 0; i < curPage->GetNumAnnots(); i++)
{
curAnno = curPage->GetAnnotation(i);
mRect = curAnno->GetRect();
PdfField curField = curPage->GetField(i);
switch (curField.GetType())
{
case ePdfField_RadioButton:
case ePdfField_CheckBox:
{
PdfObject *parent =
curField.GetFieldObject()->GetIndirectKey("Parent");
if (parent)
{
// See Standard PDF 32000-1:2018
// 12.7 Interactive Forms / 12.7.4 Field Types ff
if (parent->GetDictionary().HasKey("Ff"))
{
uint32_t oid = parent->Reference().ObjectNumber();
log += "Type: Radiobutton. Has Parent #" +
std::to_string(oid) + " ";
PdfObject *key = parent->GetDictionary().GetKey("Ff");
long Ff = static_cast<long>(key->GetNumber());
if (Ff & 0x4000) // Bit 15
log += "[NoToogleToOff is set] ";
if (Ff & 0x8000) // Bit 16
log += "[Is RadioButton is set] ";
}
else
log += "Type: Checkbox\n";
}
}; break;
[...]
_______________________________________________
Podofo-users mailing list
Podofo-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/podofo-users
