无法将参数从“const char[20]"转换为“LPCWSTR"

编译这段代码时:

#include <windows.h>

int WINAPI WinMain(HINSTANCE hInsance,HINSTANCE hPrevInstance,PSTR cmdLine,int showCmd){
    MessageBox(0,"First Win32 Program","Window Tittle",MB_OK);
    }

我收到编译器错误:

错误 C2664:'MessageBoxW':无法将参数 2 从 'const char [20]' 转换为 'LPCWSTR' 1> 指向的类型不相关；转换需要 reinterpret_cast、C-style cast 或 function-style cast

Error C2664: 'MessageBoxW': cannot convert parameter 2 from 'const char [20]' to 'LPCWSTR' 1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

我做错了什么?

推荐答案

你定义了 UNICODE，所以 MessageBox 需要一个宽字符串.

You have UNICODE defined, so MessageBox is expecting a wide string.