widechar functions in cygwin

**KIBO** · 08-10-2010

Im trying to compile a win32 program in unicode with cygwin but I keep getting the error:

Code:

void MsgBox(const wchar_t *message, const wchar_t *title, int flags)
{
  MessageBox(m_hwnd, message, title, flags);
}

window.cpp: In function 'void MsgBox(const wchar_t*, const wchar
_t*, int)':
window.cpp:52: error: cannot convert 'const wchar_t*' to 'const CHAR*' for a
rgument '2' to 'int MessageBoxA(HWND__*, const CHAR*, const CHAR*, UINT)'

apparently it's trying to compile the char versions, but I did specify

CFLAGS="-DUNICODE -D_UNICODE"
CXXFLAGS="-DUNICODE -D_UNICODE"

in the makefile.

What else do I need to do to get the widechar versions?

**Fordy** · 08-10-2010

Try a big fat #define UNICODE and #define _UNICODE at the top of your code

**KIBO** · 08-10-2010

did that before every windows.h include but still same problem. compiles fine in visual studio but not cygwin

**zacs7** · 08-10-2010

Cygwin Unicode support came out the end of last year, not sure if that would make a difference.

Or if you can...

Code:

void MsgBox(const TCHAR * message, const TCHAR * title, int flags)
{
  MessageBox(m_hwnd, message, title, flags);
}

Or:

Code:

void MsgBox(LPCTSTR message, LPCTSTR title, int flags)
{
  MessageBox(m_hwnd, message, title, flags);
}

That way who cares whether Unicode is set (although it might matter upstream).

Otherwise, if you don't care about the ANSI version, use MessageBoxW() instead...

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