Convert BSTR to Const char*

manju 123

Hi all.. As i am new c# .net......I have created a structure in Dll and calling that DLL in vc++ console Application.... I am getting the structure variable in my console application... when i put printf..I am able to see the values.. but when i save it in a text file i am getting buffer value .. Actually i am trying with code.. const _TCHAR *elementName[100]; const _TCHAR *elementValue[100]; Sharepoint_API::StructGetSite HUGEP *pBSTR; hr = SafeArrayAccessData(pICalc->GetData, (void HUGEP* FAR*)&pBSTR); for(i=0; i<pBSTR[0].totAttribute; i++){ elementName [i] = "NAME"; elementValue[i] = (LPCTSTR)pBSTR[i].Atrribute; printf("%d. is %S \n", i+1, elementValue[i]); ofstream TestFile("E:\\Test.txt",ios::app); if(TestFile) { TestFile<<elementValue[i];//"dd";//elementValue[i]; } else if(!TestFile) { } TestFile.close(); In printf I am getting the correct value... but in text file i am getting "h" pBSTR[0].totAttribute is the total count i am getting from structure from dll thank you....very much.. manju

Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

CPallini

Probably you've to replace

TestFile << elementValue[i];

with

TestFile.write( (const char*) elementValue[i], _tcslen(elementValue[i])*sizeof(TCHAR));

since even a wostream would not do the trick. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

manju 123

Sorry sir... not working.. yet the same result.. I am getting output as hhhhh

Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

CPallini

What's the input, instead?

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

manju 123

CPallini wrote:

What's the input, instead?

Actually i will get the sharepoint folders which are stored in structures in the dll... Actually i must get ///////////////////////////// http://sharepoint/Docs http://sharepoint/News http://sharepoint/Reports http://sharepoint/SearchCenter http://sharepoint/SiteDirectory ///////////////////////////// when i put printf i.e printf("%d. is %S \n", i+1, elementValue[i]); I am getting the value for elementValue[i]

Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

Naveen

manju#123 wrote:

ofstream TestFile("E:\\Test.txt",ios::app);

Since your writing a wide char text, either you have to use wofstream instead of ofstream or Covert the elementValue[i] to mutibyte using sprintf() or WideCharToMultiByte() before writing..

manju#123 wrote:

I am Mnaju

Correct your signature :)

nave [OpenedFileFinder]

CPallini

If you need to write a UNICODE file the code I provided works fine but you have to put the proper BOM at the very start of the file, for instance

TCHAR * szIn = _T("http://sharepoint/Docs");
ofstream of("foo.txt", ios::out);
#ifdef _UNICODE
TCHAR BOM = 0xFEFF;
of.write((const char *) &BOM, sizeof(TCHAR));
#endif
of.write((const char *) szIn, _tcslen(szIn)* sizeof(TCHAR));
of.close();

On the other hand, if you need to write a ANSI file then follow Naveen suggestion: use wofstream instead of ofstream.

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

CPallini

Naveen wrote:

manju#123 wrote: I am Mnaju Correct your signature [Smile] nave [OpenedFileFinder]

Also 'lokking' should be fixed in the signature. :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Naveen

ops. I didn't notice :laugh:

nave [OpenedFileFinder]

Rajesh R Subramanian

:suss:

Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]

CPallini

Rajesh R Subramanian wrote:

[Suspicious]

:confused:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Rajesh R Subramanian

Hint: That's just not an emoticon, it is a hyperlink, in my previous post. A post of mine is downvoted for no good reason (IMHO) in that thread. So, superhero intervention needed.

Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]

CPallini

Rajesh R Subramanian wrote:

That's just not an emoticon, it is a hyperlink, in my previous post.

OMG: I'm Mr.Dumb (drugz, maybe?). :-D BTW: balanced. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Rajesh R Subramanian

CPallini wrote:

BTW: balanced.

Thanks, Mr.Dumb. :-D :laugh:

Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]