Delete optionalcontentgroup

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   Hi, I use the following code to delete the optionalcontentgroup, however it does not remove the optionalcontentgroup. Could somebody give me some suggestion, thanks! look forward to your replay.

DPL.LoadFromFile(L"contentstream.pdf", L"");int contentNum = DPL.ContentStreamCount();

int optionNum = DPL.OptionalContentGroupCount();

for (int i=0; i<=optionNum; ++i)
{
	int optionID = DPL.GetOptionalContentGroupID(i);
	CStringW optionalName = DPL.GetOptionalContentGroupName(optionID).c_str();
	DPL.DeleteOptionalContentGroup(optionID);
}
DPL.SaveToFile(L"no_option.pdf");

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
nieguizhi Members Profile Find Members Posts Beginner Joined: 12 Jan 16 Location: shanghai Status: Offline Points: 12	Post Options Post Reply Quote nieguizhi Report Post Thanks(0) Quote Reply Topic: Delete optionalcontentgroup Posted: 25 Jan 16 at 8:49AM
	Hi, I use the following code to delete the optionalcontentgroup, however it does not remove the optionalcontentgroup. Could somebody give me some suggestion, thanks! look forward to your replay. DPL.LoadFromFile(L"contentstream.pdf", L""); int contentNum = DPL.ContentStreamCount(); int optionNum = DPL.OptionalContentGroupCount(); for (int i=0; i<=optionNum; ++i) { int optionID = DPL.GetOptionalContentGroupID(i); CStringW optionalName = DPL.GetOptionalContentGroupName(optionID).c_str(); DPL.DeleteOptionalContentGroup(optionID); } DPL.SaveToFile(L"no_option.pdf");

tfrost Members Profile Find Members Posts Senior Member Joined: 06 Sep 10 Location: UK Status: Offline Points: 437	Post Options Post Reply Quote tfrost Report Post Thanks(1) Quote Reply Posted: 25 Jan 16 at 12:21PM
	You should first re-sequence the loop. You should always start with the highest value and descend from the top down when deleting, because deleting the value i makes the next item become i. Also the content group ID index base is documented as 1, not 0.

nieguizhi Members Profile Find Members Posts Beginner Joined: 12 Jan 16 Location: shanghai Status: Offline Points: 12	Post Options Post Reply Quote nieguizhi Report Post Thanks(0) Quote Reply Posted: 26 Jan 16 at 4:10AM
	could you mean this: for (int i=optionNum; i>=1; --i) { int optionID = DPL.GetOptionalContentGroupID(i); DPL.DeleteOptionalContentGroup(optionID); } thanks!