CC++程序怎么实现锁屏功能？

一个思路：

1) 使用SetWindowsHookEx()，注册keyboard hook和mouse hook；注意，在hook中扰败，一定要调用码冲之前返缓模颤回的函数

2）一旦hook函数被调用，则重启定时器。

3）定时器超时，则调用LockWorkStation()锁屏

在Win_TC里运行 #include<stdio.h>

#include<stdlib.h>

#include<graphics.h>

char a[100]="zhangyafei"

char b[100]

char str[100]=""

int p=1

int i

void main()

{

int gdriver=DETECT, gmode

initgraph(&gdriver, &gmode, " ")

randomize()

do

{

while(!kbhit())

{

i++

if(i==300)

{

i=0

cleardevice()

}setcolor(rand()%16)

circle(rand()%600,rand()%450,rand()%50)

setcolor(rand()%16)

moveto(rand()%getmaxx(),rand()%getmaxy())

lineto(rand()%getmaxx(),rand()%getmaxy())

/*

setbkcolor(rand()%16)

sleep(1)

*/setcolor(rand()%16)

arc(rand()%getmaxx(),rand()%getmaxy(),rand()%getmaxx(),rand()%360,rand()%360) }

cleardevice()

setcolor(6)

settextstyle(0,0,3)

outtextxy(80,getmaxy()/2,"Please Input Password!")

scanf("%s",&b)

cleardevice()

if(strcmp(a,b))

{

p=1

outtextxy(100,getmaxy()/2,"Password is Wrong!")

sleep(1)

}

else

{

p=0

outtextxy(100,getmaxy()/2,"Password is Correct")

sleep(1)

}

}

while(p)

closegraph()

return 0

}

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