WriteConsoleOutputCharacterW(
    __in HANDLE hConsoleOutput,
    __in_ecount(nLength) LPCWSTR lpCharacter,
    __in DWORD nLength,
    __in COORD dwWriteCoord,
    __out LPDWORD lpNumberOfCharsWritten
    );

这个函数里面 __in_ecount(nLength) LPCWSTR lpCharacter, 这个是什么数据类型的

MSDN：
An LPCWSTR is a 32-bit pointer to a constant string of 16-bit Unicode Charactor, which may be null-terminated.
This type is declared as follows:
typedef const wchar_t* LPCWSTR;

void out (void)
{
    HANDLE H = GetStdHandle (STD_OUTPUT_HANDLE);
    COORD WriteCoord = {0 , 0};
    char region[] = "nihao";
    int n = strlen (region);
    WriteConsoleOutputCharacter (H , region , n , WriteCoord , 0);
}
我这样写为什么不对呢

#include <windows.h>
#include <string.h>

void out (void)
{
    HANDLE H = GetStdHandle (STD_OUTPUT_HANDLE);
    COORD WriteCoord = {0 , 0};
    char region[] = "nihao";
    int n = strlen (region);
    //WriteConsoleOutputCharacter (H , region , n , WriteCoord , 0);
    int num=0;
    WriteConsoleOutputCharacter (H , region , n , WriteCoord , &num);
}

void main(void)
{
    out();
}

有点明白了，还要转换的。

WriteConsoleOutput这个函数能输出汉字吗

大佬，我在vs2010上运行不了的。后来我直接用wchar_t类型才可以用。
    wchar_t Wstr[100] = L"你好";
    int n = wcslen(Wstr);
    WriteConsoleOutputCharacter (H ,Wstr , n , WriteCoord , 0);

试过好象没问题，不知是否与控制台在关。

# include <stdio.h>
# include <conio.h>
# include <windows.h>
# include <stdlib.h>
# include <string.h>
# include <time.h>

void OutputAttribute (void)//给指定的字符填充属性
{
    HANDLE H = GetStdHandle (STD_OUTPUT_HANDLE);
    COORD cursorposition = {30 , 1};
   
    WORD Attribute = FOREGROUND_RED | FOREGROUND_INTENSITY;
    DWORD UL;
    SetConsoleCursorPosition (H , cursorposition);
   
    for (int i = 1; i <= 200; i++)
    {
        printf ("0");
    }
    printf ("你好啊");
    FillConsoleOutputAttribute (H , Attribute , 200 , cursorposition , &UL);
    printf ("%d" , UL);
}

void OutputCharacter (void)
{
    HANDLE H = GetStdHandle (STD_OUTPUT_HANDLE);
    COORD cursorposition = {25 , 5};
    DWORD UL;
    char str[] = "你好，欢迎来到这里！";
    int n;
    PWCHAR Wstr;
    n = MultiByteToWideChar (CP_ACP , 0 , str , -1 , NULL , 0);
    Wstr = (PWCHAR)malloc (n*sizeof (WCHAR));
    MultiByteToWideChar (CP_ACP , 0 , str , -1 , Wstr , n);
    WriteConsoleOutputCharacter (H , Wstr , n-1 , cursorposition , &UL);
    free (Wstr);
}

void OutputCharacterAttribut (void)
{
    HANDLE H = GetStdHandle (STD_OUTPUT_HANDLE);
    COORD Buffersize = {80 , 25};
    COORD cursorposition = {25 , 8};

    CHAR_INFO info , infoarray[80*25];
    info.Attributes = FOREGROUND_RED | FOREGROUND_INTENSITY;
///这里将char类型转换为wchar_t类型
    char greeting[] = "您好，欢迎光临125！";
    int n;
    PWCHAR Wstr;
//    n = strlen (greeting);
    n = MultiByteToWideChar (CP_ACP , 0 , greeting , -1 ,NULL , 0);//这个也是求出长度。
//    printf ("%d" ,n);//char 与 wchar_t 类型的字符串长度不一样的。
    Wstr = (PWCHAR)malloc (n*sizeof (WCHAR));
    MultiByteToWideChar (CP_ACP , 0 , greeting , -1 , Wstr , n);
    n = wcslen (Wstr);//求字符串长度
//    printf ("%d" ,n);//
///////////////////////////////
    for (int i = 0; i < n; i++)
    {
        info.Char.UnicodeChar = Wstr[i];
        infoarray[80*8+(25+i)] = info;
    }
    SMALL_RECT rc1 = {25 , 8 , 25+n-1 ,8};
    WriteConsoleOutput (H , infoarray , Buffersize , cursorposition , &rc1);
    free (Wstr);
}

void BufferSize (void)
{
    HANDLE H = GetStdHandle (STD_OUTPUT_HANDLE);
    COORD SIZE = {100 , 25};
    SetConsoleScreenBufferSize (H ,SIZE);
    SMALL_RECT cr = {0 , 0 , 100-1 , 25-1};
    SetConsoleWindowInfo (H , true , &cr);
    CloseHandle (H);
}

int main (void)
{
//    BufferSize ();
    OutputAttribute();
    OutputCharacter ();   
    OutputCharacterAttribut ();
    getchar ();
   
    return 0;
}
请教下，为什么缓冲区的大小改变后什么都输出不了了

这样写的话总是不行