DPLSelectDocument not selecting any document

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   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"<insert license key here>") == 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

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hugetto Members Profile Find Members Posts Beginner Joined: 04 Mar 14 Status: Offline Points: 7	Post Options Post Reply Quote hugetto Report Post Thanks(0) Quote Reply Topic: DPLSelectDocument not selecting any document 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"<insert license key here>") == 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

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: 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); to 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.

hugetto Members Profile Find Members Posts Beginner Joined: 04 Mar 14 Status: Offline Points: 7	Post Options Post Reply Quote hugetto Report Post Thanks(0) Quote Reply 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

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: 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
	Cheers, Ingo

hugetto Members Profile Find Members Posts Beginner Joined: 04 Mar 14 Status: Offline Points: 7	Post Options Post Reply Quote hugetto Report Post Thanks(0) Quote Reply 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

hugetto Members Profile Find Members Posts Beginner Joined: 04 Mar 14 Status: Offline Points: 7	Post Options Post Reply Quote hugetto Report Post Thanks(0) Quote Reply Posted: 11 Mar 14 at 1:10PM
	I've downloaded today the 2013 version but I still got this output.

hugetto Members Profile Find Members Posts Beginner Joined: 04 Mar 14 Status: Offline Points: 7	Post Options Post Reply Quote hugetto Report Post Thanks(0) Quote Reply 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);

hugetto Members Profile Find Members Posts Beginner Joined: 04 Mar 14 Status: Offline Points: 7	Post Options Post Reply Quote hugetto Report Post Thanks(0) Quote Reply 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.

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: 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.