WriteConsoleOutputCharacter

函数简介

函数原型：

BOOL WriteConsoleOutputCharacter( // 在指定位置处插入指定数量的字符

HANDLE hConsoleOutput, // 句柄

LPCTSTR lpCharacter, // 字符串

DWORD nLength, // 字符个数

COORD dwWriteCoord, // 起始位置

LPDWORD lpNumberOfCharsWritten // 已写个数

);

参数简介：

hConsoleOutput：控制台输出句柄，通过调用GetStdHandle函数获得

HANDLE hnd;

hnd=GetStdHandle(STD_INPUT_HANDLE);

lpCharacter：要输出的字符串

nLength：输出长度

dwWriteCoord：起始位置

其中，COORD是个结构体变量类型

typedef struct _COORD {

SHORT X;

SHORT Y;

} COORD;

lpNumberOfCharsWritten：已写个数，通常置为NULL

2程序示例

示例一：

#include <windows.h>

#include <string.h>

int main(void)

{

COORD size = {10, 10};

HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);

WriteConsoleOutputCharacter(hOut,"Hello,World",strlen("Hello,World"),size,NULL);

return 0;

}

示例二：

// 在DOS窗口中央输出“Hello,World”

#include <windows.h>

#include <stdio.h>

#include <string.h>

int main(void)

{

COORD size;

int length;

CONSOLE_SCREEN_BUFFER_INFO bInfo; // 窗口缓冲区信息

HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);

GetConsoleScreenBufferInfo( hOut, &bInfo ); // 获取窗口缓冲区信息

char *strText = "Hello,World!";

length = strlen(strText);

size.X = ( bInfo.dwSize.X - length ) / 2;

size.Y = bInfo.dwSize.Y / 2;

WriteConsoleOutputCharacter(hOut,strText,length,size,NULL);

return 0;

}

示例三：

#include<iostream>

#include<iomanip>

#include<windows.h>

using namespace std;

void Draw(HANDLE hand,int colour,char *s,int len,COORD point,LPDWORD lPdword);

int main()

{

int x=4;

int y=4;

HANDLE hand;

hand=GetStdHandle(STD_OUTPUT_HANDLE);

int colour=200;

int len=2;

COORD point = {x,y};

SMALL_RECT rt = {0,0,35,32}; // 窗口尺寸

SetConsoleWindowInfo(hand,true,&rt); // 由于DOS默认只有25行，为了便于观察，把dos窗口行数调为35，这个也可以用system函数实现

char *string="■";

Draw(hand,colour,string,len,point,NULL);

INPUT_RECORD keyRec;

DWORD res;

HANDLE hnd;

hnd=GetStdHandle(STD_INPUT_HANDLE);

for(;;)

{

cout<<setfill('0')<<"("<<setw(2)<<point.X<<","<<setw(2)<<point.Y<<")";

ReadConsoleInput(hnd,&keyRec,1,&res);

if(keyRec.EventType==KEY_EVENT)

{

if(keyRec.Event.KeyEvent.wVirtualKeyCode==65)

{

if(point.X>1) // 这里不用那么麻烦，因为按a时只会使X减小，下同

{

Draw(hand,1," ",len,point,NULL);

point.X-=1;

Draw(hand,colour,string,len,point,NULL);

}

}

if(keyRec.Event.KeyEvent.wVirtualKeyCode==68)

{

if(point.X<30)

{

Draw(hand,1," ",len,point,NULL);

point.X+=1;

Draw(hand,colour,string,len,point,NULL);

}

}

if(keyRec.Event.KeyEvent.wVirtualKeyCode==87)

{

if(point.Y>1)

{

Draw(hand,1," ",len,point,NULL);

point.Y-=1;

Draw(hand,colour,string,len,point,NULL);

}

}

if(keyRec.Event.KeyEvent.wVirtualKeyCode==83)

{

if(point.Y<30)

{

Draw(hand,1," ",len,point,NULL);

point.Y+=1;

Draw(hand,colour,string,len,point,NULL);

}

}

}

cout<<"\b\b\b\b\b\b\b";

}

}

void Draw(HANDLE hand,int colour,char *s,int len,COORD point,LPDWORD lPdword)

{

FillConsoleOutputAttribute(hand,colour,len,point,lPdword);

WriteConsoleOutputCharacter(hand,s,len,point,lPdword);

}