String to LPCTSTR

LongPointertoCharacTerSTRing. Not sure what you're trying to do, but either use the old style cast

somethinglikethis = (LPCTSTR) somethinglikethat;

or the dynamic cast

somethinglikethis = dynamic_cast < LPCTSTR > somethinglikethat;

Leave out the spaces between the chevrons.

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[edited by - mathematix on August 21, 2003 8:47:31 AM]

Hmm, it''s that easy?

quote:

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Original post by Mathematix
or the dynamic cast

somethinglikethis = dynamic_cast < LPCTSTR > somethinglikethat;

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ROFL.          

No, you don't need any cast:

const char* str1 = "blergh";
char* str2 = "blah";
LPCTSTR str3 = str1;
LPCTSTR str4 = str2;


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[edited by - Lektrix on August 21, 2003 8:59:21 AM]

What kind of string are you talking about?
std::string or (c-style) char*-string?

In case of std::string call the .c_str() member-function

A little more info:

// WinNT.h


typedef CONST CHAR *LPCSTR, *PCSTR;
typedef CONST WCHAR *LPCWSTR, *PCWSTR;

#ifdef  UNICODE
  typedef LPCWSTR LPCTSTR;
#else
  typedef LPCSTR LPCTSTR;
#endif

[edited by - Wildfire on August 21, 2003 9:01:08 AM]

quote:

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Original post by Mathematix
or the dynamic cast

somethinglikethis = dynamic_cast < LPCTSTR > somethinglikethat;

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dynamic_cast is only for base-to-derived casts of polymorphic classes and is completely inappropriate here.

kobingo - I assume that, by string, you mean a C++ std::string object. Two possibilities :

• You are only going to read the string at a single point - which appears to be the case with D3DXCreateTextureFromFile. If so, you can use the std::string::c_str() member function.
  
  SomeFunction( MyString.c_str() );
  
  
• You need to create a C string out of the string object in a persistent manner - by copying it out in a char buffer. If so, you can use the std::string::copy() member function.
  

  
  char* buffer = new char[MyString.length()+1];
  MyString.copy( buffer, std::string::npos );
  buffer[MyString.length()] = 0;
   

  
  

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Thanks alot! Think I got it...

quote:

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Original post by kobingo
(that is what the D3DXCreateTextureFromFile wants)

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My guess is that he is only going to need std::string::c_str().

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typedef basic_string<TCHAR> tstring;

void function( LPCTSTR );

..

tstring bleh;
function( tstring.c_str() );

Okay, guys.

I put up some possible solutions. No code samples provided, so I put down some possibilities - OKAY?!

Bloody hell!!! >

Beginners and experts will find answers here.

quote:

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Original post by Mathematix
LongPointertoCharacTerSTRing

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Actually that''s

Long Pointer to Const T STRing

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Qui fut tout, et qui ne fut rien
Invader''s Realm

quote:

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Original post by Invader X
Actually that's

Long Pointer to Const T STRing

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What's a "T String"? Any relation to the "G String"? Har har.

[edited by - JonWoyame on August 21, 2003 5:26:52 PM]

Terminated

You guys are really taking the p*** now, but I ain''t trippin''.

Beginners and experts will find answers here.

quote:

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Original post by Anonymous Poster
just to add fuel to the fire the T stands for TCHAR, which is associated with MS''s tchar.h #defines that help create "portable" code that can be used to target both ANSI and UNICODE character set based versions of Windows without recoding.

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Aye. For "null-terminated" it''s a "Z"

Thanks I was having same trouble with loadimage.

quote:

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Original post by Anonymous Poster
so, me being a C++ lib no-nothing, will MS''s implementation of std::string have c_str() return a pointer to a wide (2 byte) character buffer if a UNICODE char set is targeted for the build? according to the MSDN docs it will return a pointer to a nonmodifiable C string, which doesn''t tell me much.

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That''s the decisive question.