＃定义_UNICODE无法与MinGW + CodeBlocks配合使用 [英] #define _UNICODE not working with MinGW + CodeBlocks

问题描述

通常我使用Visual Studio，但是我改用mingw，我想使我的应用程序易于从unicode和多字节更改，在mingw项目中，我有自己的定义，包括：

usually i use visual studio, but i switched to mingw, i like to make my apps easily changeable from unicode and multi byte, in my mingw project i have my defines and includes like this:

#define WIN32_LEAN_AND_MEAN
#define WINVER 0x0700
#define _UNICODE

#include <windows.h>
#include <commctrl.h>
#include <stdio.h>
#include <stdlib.h>
#include <tchar.h>

#define WND_MAIN_CLASS  _T("MainWindowFrame")

然后我注册并创建我的窗口，例如

then i register and create my window e.g.

 WNDCLASSEX wc;
...
wc.lpszClassName = WND_MAIN_CLASS;

RegisterClassEx(&wc);

    hwnd = CreateWindowEx(0, WND_MAIN_CLASS, _T("Main Window"),
  WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
  CW_USEDEFAULT, CW_USEDEFAULT, 640, 480, NULL, NULL, hInst, NULL);

但是当我去编译时，出现错误，它无法在WNDCLASSEX lpszClassName上将wchar_t转换为CHAR *

but when i go to compile i get errors that it cannot convert wchar_t to CHAR* on the WNDCLASSEX lpszClassName and the CreateWindowEx on the Class name and window title.

如果我右键单击并转到createwindowex和WNDCLASSEX的声明，它来自winuser.h：

if i right click and go to declaration of createwindowex and WNDCLASSEX, it comes up with these from winuser.h:

    typedef WNDCLASSEXW WNDCLASSEX,*LPWNDCLASSEX,*PWNDCLASSEX;

#define CreateWindowEx CreateWindowExW

如果我注释掉它编译的定义_UNICODE并且可以正常工作

if i comment out the define _UNICODE it compiles and works with no problems

推荐答案

编译Unicode应用程序时，您可能应该同时定义 UNICODE 和 _UNICODE 。 Windows标头使用 UNICODE 和MS C运行时使用 _UNICODE

When compiling unicode apps you should probably define both UNICODE and _UNICODE. The windows headers use UNICODE and the MS C runtime uses _UNICODE

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