loadFromString results in 401 error

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   Good morning,
Using DLL version 10.  Have tried both DPLLoadFromString and DPLLOadFromStringA. Same problem.  Jade development environment is being used.  This is the obny call I have had an issue with.

The code is:

vars
	qp	:	PDF;
	st	:	String;
begin
	create qp transient;						//create and unlock library
	qp.loadFromFile("c:\temp\seka.pdf","");		//import existing pdf (4pages)
	qp.deletePages(2,qp.pageCount-1);		//delete all pages except page 1
	qp.selectPage(1);						//select page 1
	st := qp.saveToString;					//get pdf as a string and hold
	write st.length;						//check length of string
	write st;								//display string
	delete qp;							//delete and release library
	create qp transient;						//create and unlock library
	qp.loadFromString(st,"");					//load pdf from held string
	write qp.lastErrorCode;					//display error code
	qp.saveToFile("c:\temp\test_save.pdf");		//save new document as a pdf
	delete qp;							//delete and release library
end;

All calls are successful except the loadFromString call.

Thank you.

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MrPopup Members Profile Find Members Posts Team Player Joined: 19 Dec 05 Location: New Zealand Status: Offline Points: 32	Post Options Post Reply Quote MrPopup Report Post Thanks(0) Quote Reply Topic: loadFromString results in 401 error Posted: 27 May 14 at 11:04PM
	Good morning, Using DLL version 10. Have tried both DPLLoadFromString and DPLLOadFromStringA. Same problem. Jade development environment is being used. This is the obny call I have had an issue with. The code is: vars qp : PDF; st : String; begin create qp transient; //create and unlock library qp.loadFromFile("c:\temp\seka.pdf",""); //import existing pdf (4pages) qp.deletePages(2,qp.pageCount-1); //delete all pages except page 1 qp.selectPage(1); //select page 1 st := qp.saveToString; //get pdf as a string and hold write st.length; //check length of string write st; //display string delete qp; //delete and release library create qp transient; //create and unlock library qp.loadFromString(st,""); //load pdf from held string write qp.lastErrorCode; //display error code qp.saveToFile("c:\temp\test_save.pdf"); //save new document as a pdf delete qp; //delete and release library end; All calls are successful except the loadFromString call. Thank you.

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 28 May 14 at 8:27AM
	is it okay with another dll-version? If not: Please upload the pdf anywhere and post the link - so we can check it. Cheers, Ingo
	Cheers, Ingo

MrPopup Members Profile Find Members Posts Team Player Joined: 19 Dec 05 Location: New Zealand Status: Offline Points: 32	Post Options Post Reply Quote MrPopup Report Post Thanks(0) Quote Reply Posted: 29 May 14 at 8:50PM
	ftp site 219.89.207.2 US: quickpdf PW pdf1004 Thank you.

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 29 May 14 at 9:24PM
	I think the problem is before the LoadFromString. You should check each returning value. What about the returning value of DeletePages? It should be the number of the remaining pages. I don't know Jade... the string content should be Ansi...
	Cheers, Ingo

MrPopup Members Profile Find Members Posts Team Player Joined: 19 Dec 05 Location: New Zealand Status: Offline Points: 32	Post Options Post Reply Quote MrPopup Report Post Thanks(0) Quote Reply Posted: 29 May 14 at 9:47PM
	QuickPDF Library Responses DPLLoadFromFileA response: 1 DPLPageCount response: 4 DPLDeletePages response: 1 DPLPageCount response: 1 DPLSelectPage response: 1 String length: 219 LoadFronStringA response: 0 LastErrorCode response: 401 SaveToFile response: 1

MrPopup Members Profile Find Members Posts Team Player Joined: 19 Dec 05 Location: New Zealand Status: Offline Points: 32	Post Options Post Reply Quote MrPopup Report Post Thanks(0) Quote Reply Posted: 29 May 14 at 10:17PM
	I note that the DPLLoadFromStringA construct makes use of both char (ansi) and w_char (unicode) data types. No other constructs that I have used mix the two types. Thanks.

AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(0) Quote Reply Posted: 30 May 14 at 10:13AM
	MrPopup, Here is the C# wrapper code for LoadFromString and SaveToString ? It should be helpful with porting it to Jade. The C# wrapper is calling the DLL also. Andrew. public int LoadFromString(byte[] Source, string Password) { if (dll == null) return 0; else { GCHandle gch = GCHandle.Alloc(Source, GCHandleType.Pinned); IntPtr bufferID = dll.DebenuPDFLibraryCreateBuffer(instanceID, Source.Length); dll.DebenuPDFLibraryAddToBuffer(instanceID, bufferID, gch.AddrOfPinnedObject(), Source.Length); int result = dll.DebenuPDFLibraryLoadFromString(instanceID, bufferID, Password); dll.DebenuPDFLibraryReleaseBuffer(instanceID, bufferID); gch.Free(); return result; } } public byte[] SaveToString() { if (dll == null) return new byte[0]; else { IntPtr data = dll.DebenuPDFLibrarySaveToString(instanceID); int size = dll.DebenuPDFLibraryAnsiStringResultLength(instanceID); byte[] result = new byte[size]; Marshal.Copy(data, result, 0, size); return result; } }

MrPopup Members Profile Find Members Posts Team Player Joined: 19 Dec 05 Location: New Zealand Status: Offline Points: 32	Post Options Post Reply Quote MrPopup Report Post Thanks(0) Quote Reply Posted: 31 May 14 at 9:45PM
	Thank you Andrew. I am not sure how I would use this, but appreciate the effort.

AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(0) Quote Reply Posted: 04 Jun 14 at 7:14AM
	Mr Popup, You will need do some research and see how strings and arrays work in Jade. The code examples show how the C# wrapper loads and saves strings using the DLL calls. Andrew.