Debenu Quick PDF Library - PDF SDK Community Forum : DPLSelectDocument not selecting any document

DPLSelectDocument not selecting any document : Hugetto,The length of the binary...

Fri, 14 Mar 2014 01:58:28 +0000

Author: AndrewC
Subject: 2844
Posted: 14 Mar 14 at 1:58AM

Hugetto,

The length of the binary data returned from the library can be obtained using DPLAnsiStringResultLength(); You will need to call this directly after calling DPLRenderPageToFile.

All image will return binary data including NULL characters ('\0') and so strlen() will not work.

Andrew.

DPLSelectDocument not selecting any document : I can render to a png file using...

Tue, 11 Mar 2014 13:34:50 +0000

Author: hugetto
Subject: 2844
Posted: 11 Mar 14 at 1:34PM

I can render to a png file using this function:

DPLRenderPageToFile(InstanceID, 64, 1, 5, L"C:\\Users\\Hug\\Desktop\\example.png");

But I can't using the other function.

I did strlen on the char* ret and i get 8 which is the "‰PNG\r\n\x1a\n" string.

I could use the render to file function, but I would prefer to use the other one if possible.

DPLSelectDocument not selecting any document : I tried other functions like on...

Tue, 11 Mar 2014 13:22:14 +0000

Author: hugetto
Subject: 2844
Posted: 11 Mar 14 at 1:22PM

I tried other functions like on the turorial, and they work propperly:

Ex:
DPLDrawText(InstanceID, 100, 500, L”Hello world”);
DPLSaveToFile(InstanceID, L”C:\\Docs\\HelloFromLIB.pdf”);
DPLReleaseLibrary(InstanceID);

DPLSelectDocument not selecting any document : I've downloaded today the...

Tue, 11 Mar 2014 13:10:34 +0000

Author: hugetto
Subject: 2844
Posted: 11 Mar 14 at 1:10PM

I've downloaded today the 2013 version but I still got this output.

DPLSelectDocument not selecting any document : Hi Ingo, I can open my pdf with...

Tue, 11 Mar 2014 07:47:59 +0000

Author: hugetto
Subject: 2844
Posted: 11 Mar 14 at 7:47AM

Hi Ingo,

I can open my pdf with a pdf viewer.
And I put

err = DPLLastErrorCode(InstanceID);

After every function, and always return 0.

This is the function I put all together:

void showpdf()
{
     static int hug3 = 0;
     static int InstanceID = 0;
     if (hug3 == 0)
     {
          DEBENUPDFLIBRARYLIB1012_DllMain(GetModuleHandle(NULL), DLL_PROCESS_ATTACH, NULL);
          int err = DPLLastErrorCode(InstanceID);
          InstanceID = DPLCreateLibrary();
          err = DPLLastErrorCode(InstanceID);
          if (DPLUnlockKey(InstanceID, L"your_private_licensekey") == 1)
          {
               err = DPLLastErrorCode(InstanceID);
               //int DocumentID = DPLDAOpenFile(InstanceID, L"C:\\Users\\Hug\\Desktop\\example.pdf", nullptr);
               int DocumentID = DPLLoadFromFile(InstanceID, L"C:\\Users\\Hug\\Desktop\\example.pdf", nullptr);
               //int m = DPLSelectDocument(InstanceID, DocumentID);
               err = DPLLastErrorCode(InstanceID);
               int lDoc = DPLSelectedDocument(InstanceID);
               err = DPLLastErrorCode(InstanceID);
               char *ret = DPLRenderPageToString(InstanceID, 24, 1, 5);
               err = DPLLastErrorCode(InstanceID);
               hug3 = true;
          }
     }
}

Here are the debug output variables

DocumentID     1476395009     int
lDoc     1476395008     int
ret     0x06493688 "‰PNG\r\n\x1a\n"     char *
err     0     int
InstanceID     105836192     int
hug3     1     int

Thank you

Edited by hugetto - 11 Mar 14 at 1:18PM

DPLSelectDocument not selecting any document : Hi,i don't know what's...

Mon, 10 Mar 2014 19:18:39 +0000

Author: Ingo
Subject: 2844
Posted: 10 Mar 14 at 7:18PM

Hi,

i don't know what's wrong in your special issue.

What you should check is:

Is it possible to open the pdf with a good reader like Foxit?

At second you should use LastErrorCode (after each function line).

Perhaps this function will tell you what's going wrong.

Cheers and welcome here,

Ingo

DPLSelectDocument not selecting any document : Thank you for this information,...

Wed, 05 Mar 2014 07:30:29 +0000

Author: hugetto
Subject: 2844
Posted: 05 Mar 14 at 7:30AM

Thank you for this information, but i've got the same results when I render the page with the DPLRenderPageToString function

int DocumentID = DPLLoadFromFile(InstanceID, L"C:\\example.pdf", nullptr);
char *ret = DPLRenderPageToString(InstanceID, 24, 1, 5);

The DocumentID is 1
The *ret value is "‰PNG\r\n\x1a\n" using the DPLLoadFromFile function and the DPLDAOpenFileReadOnly function.

What I'm doing wrong?

Thank you

DPLSelectDocument not selecting any document : Hello,You are mixing DA functions...

Wed, 05 Mar 2014 02:45:44 +0000

Author: AndrewC
Subject: 2844
Posted: 05 Mar 14 at 2:45AM

Hello,

You are mixing DA functions with non DA functions. The DA functions only work with other DA functions.

So if you change the following line from

int DocumentID = DPLDAOpenFileReadOnly(InstanceID, L"C:\\file.pdf", nullptr);

int ret = DPLLoadFromFile(InstanceID, L"C:\\file.pdf", nullptr);

DocumentId = DQPLSelectedDocument(InstanceID);

If ret = 1 then the file has loaded correctly.

The ID's are handle numbers we use internally.

Andrew.

DPLSelectDocument not selecting any document : Hello, I'm trying the trial...

Tue, 04 Mar 2014 11:39:43 +0000

Author: hugetto
Subject: 2844
Posted: 04 Mar 14 at 11:39AM

Hello, I'm trying the trial version in C++ but i cannot Select any document.

This is the code I use:

DEBENUPDFLIBRARYLIB1012_DllMain(GetModuleHandle(NULL), DLL_PROCESS_ATTACH, NULL);
InstanceID = DPLCreateLibrary();
if (DPLUnlockKey(InstanceID, L"") == 1)
{
     int DocumentID = DPLDAOpenFileReadOnly(InstanceID, L"C:\\file.pdf", nullptr);
     int err = DPLLastErrorCode(InstanceID);
     int lSelected = DPLSelectDocument(InstanceID, DocumentID);
     int lOutDoc = DPLSelectedDocument(InstanceID);
}

This are the output variables:
InstanceID = 99020448
DocumentID = 1476395009
err = 0
lSelected = 0 //which means have failed, but I don't know why it failed
lOutDoc = 1476395008 //Why it's the same number as DocumentID minus 1?

What's happening?

Thank you

Edited by AndrewC - 05 Mar 14 at 2:38AM