黑客帝国屏保源码

黑客帝国屏幕保护设置

项目地址:https://github.com/0x50j/hack_backgroud/

发布下载地址:https://github.com/0x50j/hack_backgroud/releases/tag/V0

以下是开发心路历程。。。算是吧。。别在意

  1. 打开VS2010或以上版本,新建—>项目,Visual C++,win32,选择win32控制台应用程序,名称填写为"hacker"。

  2. 将一下代码复制到项目源文件中

```c++
//数字流星雨
#include "stdafx.h"
#include

#define ID_TIMER 1
#define STRMAXLEN 25 //一个显示列的最大长度
#define STRMINLEN 8 //一个显示列的最小长度#pragma comment ( linker, "/subsystem:windows /entry:mainCRTStartup" ) //去除启动或退出程序时黑框

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
//
//
typedef struct tagCharChain //整个当作屏幕的一个显示列,这是个双向列表
{
struct tagCharChain prev; //链表的前个元素
TCHAR ch; //一个显示列中的一个字符
struct tagCharChain
next; //链表的后个元素
}CharChain, *pCharChain;

typedef struct tagCharColumn
{
CharChain head, current, point;
int x, y, iStrLen; //显示列的开始显示的x,y坐标,iStrLen是这个列的长度
int iStopTimes, iMustStopTimes; //已经停滞的次数和必须停滞的次数,必须停滞的次数是随机的
}CharColumn,
pCharColumn;

int main(HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("matrix") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;

    wndclass.style                = CS_HREDRAW | CS_VREDRAW ; 
    wndclass.lpfnWndProc        = WndProc ; 
    wndclass.cbClsExtra        = 0 ; 
    wndclass.cbWndExtra        = 0 ; 
    wndclass.hInstance        = hInstance ;

wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (BLACK_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;

    if(!RegisterClass (&wndclass)) 
    { 
        MessageBox (NULL, TEXT ("此程序必须运行在NT下!"), szAppName, MB_ICONERROR) ; 
        return 0; 
    }

    hwnd = CreateWindow (szAppName, NULL, 
                        WS_DLGFRAME | WS_THICKFRAME | WS_POPUP, 
                        0, 0, 
                        GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN), 
                        NULL, NULL, hInstance, 
                        NULL) ;

    ShowWindow (hwnd, SW_SHOWMAXIMIZED) ; //最大化显示 
    UpdateWindow (hwnd) ; 
    ShowCursor(FALSE); //隐藏鼠标光标 

    srand ((int) GetCurrentTime ()) ; //初始化随机数发生器 
    while (GetMessage (&msg, NULL, 0, 0)) 

{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
ShowCursor(TRUE); //显示鼠标光标
return msg.wParam ;
}

TCHAR randomChar() //随机字符产生函数
{
return (TCHAR)(rand()%(126-33)+33); //33到126之间
}

int init(CharColumn *cc, int cyScreen, int x) //初始化
{
int j;
cc->iStrLen = rand()%(STRMAXLEN-STRMINLEN) + STRMINLEN; //显示列的长度
cc->x = x+3 ; //显示列的开始显示的x坐标
cc->y =rand()%3?rand()%cyScreen:0; //显示列的开始显示的y坐标
cc->iMustStopTimes = rand()%6 ;
cc->iStopTimes = 0 ;
cc->head = cc->current =
(pCharChain)calloc(cc->iStrLen, sizeof(CharChain)); //生成显示列
for(j=0; jiStrLen-1; j++)
{
cc->current->prev = cc->point; //cc->point一个显示列的前个元素
cc->current->ch = '';
cc->current->next = cc->current+1; //cc->current+1一个显示列的后个元素
cc->point = cc->current++; //cc->point = cc->current; cc->current++;
}
cc->current->prev = cc->point; //最后一个节点
cc->current->ch = '';
cc->current->next = cc->head;
cc->head->prev = cc->current; //头节点的前一个为此链的最后一个元素

    cc->current = cc->point = cc->head; //free掉申请的内存要用current当参数 
    cc->head->ch = randomChar(); // 对链表头的 元素填充 
    return 0; 

}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc ;
//ctn 用来确定一个显示链是否 向下前进,如果等待次数超过必须等待的次数,ctn就代表要向下前进
int i, j, temp, ctn; //j为一个显示链中除链表头外的在屏幕上显示的y坐标,temp绿色过度到黑色之用
static HDC hdcMem;
HFONT hFont;
static HBITMAP hBitmap;
static int cxScreen, cyScreen; //屏幕的宽度 高度.
static int iFontWidth=10, iFontHeight=15, iColumnCount; //字体的宽度 高度, 列数
static CharColumn *ccChain;

  switch (message) 
  { 
    case WM_CREATE: 
        cxScreen = GetSystemMetrics(SM_CXSCREEN) ; //屏幕宽度 
        cyScreen = GetSystemMetrics(SM_CYSCREEN) ; 
        SetTimer (hwnd, ID_TIMER, 10, NULL) ;

        hdc = GetDC(hwnd); 
        hdcMem = CreateCompatibleDC(hdc); 
        hBitmap = CreateCompatibleBitmap(hdc, cxScreen, cyScreen); 
        SelectObject(hdcMem, hBitmap); 
        ReleaseDC(hwnd, hdc); 
        //创建字体 
        hFont = CreateFont(iFontHeight, iFontWidth-5, 0, 0, FW_BOLD, 0, 0, 0, 

DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
DRAFT_QUALITY, FIXED_PITCH | FF_SWISS, TEXT("Fixedsys"));
SelectObject(hdcMem, hFont);
DeleteObject (hFont) ;
SetBkMode(hdcMem, TRANSPARENT); //设置背景模式为 透明
iColumnCount = cxScreen/(iFontWidth*3/2); //屏幕所显示字母雨的列数

        ccChain = (pCharColumn)calloc(iColumnCount, sizeof(CharColumn)); 
        for(i=0; iiStopTimes++ > (ccChain+i)->iMustStopTimes; 
            // 
            (ccChain+i)->point = (ccChain+i)->head; //point用于遍历整个显示列 

            //第一个字符显示为 白色 
            SetTextColor(hdcMem, RGB(255, 255, 255)); 

TextOut(hdcMem, (ccChain+i)->x, (ccChain+i)->y, &((ccChain+i)->point->ch), 1);
j = (ccChain+i)->y;
(ccChain+i)->point = (ccChain+i)->point->next;
//遍历整个显示列,将这个显示列里的字符从下往上显示
temp = 0 ; //temp绿色过度到黑色之用
while((ccChain+i)->point != (ccChain+i)->head && (ccChain+i)->point->ch)
{
SetTextColor(hdcMem, RGB(0, 255-(255(temp++)/(ccChain+i)->iStrLen), 0));
TextOut(hdcMem, (ccChain+i)->x, j-=iFontHeight, &((ccChain+i)->point->ch), 1);
(ccChain+i)->point = (ccChain+i)->point->next;
}
if(ctn)
(ccChain+i)->iStopTimes = 0 ;
else continue;
(ccChain+i)->y += iFontHeight; //下次开始显示的y坐标 为当前的y坐标加上 一个字符的高度
//如果开始显示的y坐标减去 整个显示列的长度超过了屏幕的高度
if( (ccChain+i)->y-(ccChain+i)->iStrLen
iFontHeight > cyScreen)
{
free( (ccChain+i)->current );
init(ccChain+i, cyScreen, (iFontWidth3/2)i);
}
//链表的头 为此链表的前个元素,因为下次开始显示的时候 就相当与在整个显示列的开头添加个元素,然后在开始往上显示
(ccChain+i)->head = (ccChain+i)->head->prev;
(ccChain+i)->head->ch = randomChar();
}

        BitBlt(hdc, 0, 0, cxScreen, cyScreen, hdcMem, 0, 0, SRCCOPY); 
        ReleaseDC(hwnd, hdc); 
        return 0;

    case WM_RBUTTONDOWN: 
        KillTimer (hwnd, ID_TIMER) ; 
        return 0;

    case WM_RBUTTONUP: 
        SetTimer (hwnd, ID_TIMER, 10, NULL) ; 
        return 0;

    //处理善后工作 
    case WM_KEYDOWN: 
    case WM_LBUTTONDOWN: 
    case WM_DESTROY: 
        KillTimer (hwnd, ID_TIMER) ; 
        DeleteObject(hBitmap); 
        DeleteDC(hdcMem); 
        for(i=0; icurrent ); 
        } 
        free(ccChain); 
        PostQuitMessage (0) ; 
        return 0 ; 
    } 
    return DefWindowProc (hwnd, message, wParam, lParam) ; 

}



3. 编译项目工程

4. 找到生成的exe文件,将exe后缀改为scr(hacker.exe->hacker.scr)

5. 将文件hacker.scr拷贝到C:WindowsSystem32下

6. 鼠标移到桌面,右击,选择个性化,屏幕保护程序,选择hacker。

属于自己的黑客帝国屏幕保护程序就设置成功了!
![hack_backgroud.png](https://s2.51cto.com/images/20220826/1661497840704873.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)

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