• Quentin J. (23/23) Aug 26 2013 Hello, (sorry for my english, i'm french ^^)
• Adam D. Ruppe (39/43) Aug 26 2013 Try:
• Quentin J. (5/31) Aug 26 2013 For the array, it is my fault an error of inattention ^^

"Quentin J." <quentin.joseph outlook.com> writes:

Hello, (sorry for my english, i'm french ^^)

I try to implement CharToOem function in my code for use accent 
in windows console but she doesn't work, i have one error from 
xamarin studio : "bool.main.CharToOem(const char*, char*) could 
not be resolved - librairy reference missing" :'(.

CharToOem Function :

BOOL WINAPI CharToOem(
   _In_   LPCTSTR lpszSrc,
   _Out_  LPSTR lpszDst
);

LPCTSTR = const char* or const wchar_t* depending on _UNICODE.
LPSTR = char*

My code is :

import std.c.windows.windows;
extern (Windows) bool CharToOem(const char*, char*);

public void PutStringIntoConsole(string text)
{
	char[] source = text.dup;
	char[] dest;

	CharToOem(source.ptr, dest.ptr);
	writeln(dest);
}

Can you help me please, i'm novice in D.

"Adam D. Ruppe" <destructionator gmail.com> writes:

On Monday, 26 August 2013 at 17:42:49 UTC, Quentin J. wrote:
 extern (Windows) bool CharToOem(const char*, char*);

Try:

// use the unicode version of the Windows function
extern (Windows) bool CharToOemW(const wchar*, char*);
alias CharToOemW CharToOem;


Windows functions often have an A or a W at the end of them, for 
ascii or wide char version. The name without A or W is just an 
alias or #define for many functions.

Your function is wrong too:

 	char[] source = text.dup;

This might not zero terminate the string, and won't be right for 
Unicode characters. Better to do:

import std.utf;
auto source = toUTF16z(text);

 	char[] dest;

 	CharToOem(source.ptr, dest.ptr);

And this will give you an AccessViolation if you run it because 
dest is null.

// allocate some space for the new string first
char[] dest = new char[](text.length * 2);



To to bring it together:

import std.c.windows.windows;

// use the unicode version of the Windows function
extern (Windows) bool CharToOemW(const wchar*, char*);
alias CharToOemW CharToOem;


public void PutStringIntoConsole(string text)
{
         // convert source into a Windows tchar* string
         import std.utf;
         auto source = toUTF16z(text);

         // prepare our buffer with enough space to receive the 
data
         char[] dest = new char[](text.length * 2);

         // call the function...
         CharToOem(source, dest.ptr);

         // we also want to get the length out instead of relying 
on zero termination for a real D string:
         import core.stdc.string;
         dest = dest[0 .. strlen(dest.ptr)];

         writeln(dest);
}



That should give you better results.

"Quentin J." <quentin.joseph outlook.com> writes:

On Monday, 26 August 2013 at 18:02:51 UTC, Adam D. Ruppe wrote:
 To to bring it together:

 import std.c.windows.windows;

 // use the unicode version of the Windows function
 extern (Windows) bool CharToOemW(const wchar*, char*);
 alias CharToOemW CharToOem;


 public void PutStringIntoConsole(string text)
 {
         // convert source into a Windows tchar* string
         import std.utf;
         auto source = toUTF16z(text);

         // prepare our buffer with enough space to receive the 
 data
         char[] dest = new char[](text.length * 2);

         // call the function...
         CharToOem(source, dest.ptr);

         // we also want to get the length out instead of 
 relying on zero termination for a real D string:
         import core.stdc.string;
         dest = dest[0 .. strlen(dest.ptr)];

         writeln(dest);
 }

It works,

 	char[] dest;

	CharToOem(source.ptr, dest.ptr);


And this will give you an AccessViolation if you run it because 
dest is null.

For the array, it is my fault an error of inattention ^^

Thank for your explanation and your help.

Quentin.