关于系统任务、进程的编程技巧

+---------+------------+-----------------------------+---+----------+-------+
| 开始按钮 |运行应用程序1 | 运行应用程序2... |[<]|托盘通知区域|托盘时钟|
+---------+------------+-----------------------------+---+----------+-------+

// ============================================
// HackerTools.h : YangTze presents. 07/07/2005
// ============================================

#pragma once

class CHackerTools
{
public:
CHackerTools(void);
~CHackerTools(void);

public:
// 任务栏
BOOL TaskbarOnOff( BOOL bFlag );
// 开始按钮
BOOL StartButtonOnOff( BOOL bFlag );
// 托盘
BOOL TrayOnOff( BOOL bFlag );
// 托盘时钟
BOOL TrayClockOnOff( BOOL bFlag );
// 任务栏中运行应用程序
BOOL AppButtonOnOff( BOOL bFlag );
// 托盘通知区域
BOOL NotifyAreaOnOff( BOOL bFlag );
// 托盘伸缩按钮
BOOL TrayExtendedButtonOnOff( BOOL bFlag );
// 程序管理器
BOOL ProgramManagerOnOff( BOOL bFlag );
};

// ==============================================
// HackerTools.cpp : YangTze presents. 07/07/2005
// ==============================================

#include "StdAfx.h"
#include ".\hackertools.h"

CHackerTools::CHackerTools(void)
{
}

CHackerTools::~CHackerTools(void)
{
}

// 任务栏
// ------------------------------------------
BOOL CHackerTools::TaskbarOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::FindWindow( _T("Shell_TrayWnd"),NULL );
if( hWnd == NULL ) return FALSE;

::ShowWindow( hWnd,bFlag ? SW_SHOW : SW_HIDE );
::UpdateWindow( hWnd );

return TRUE;
}

// 开始按钮
// ----------------------------------------------
BOOL CHackerTools::StartButtonOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::GetDlgItem( ::FindWindow( _T("Shell_TrayWnd"),NULL ),0x130 );
if( hWnd == NULL ) return FALSE;

::ShowWindow( hWnd,bFlag ? SW_SHOW : SW_HIDE );
::UpdateWindow( hWnd );

return TRUE;
}

// 托盘
// ---------------------------------------
BOOL CHackerTools::TrayOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::GetDlgItem( ::FindWindow( _T("Shell_TrayWnd"),NULL ),0x12F );
if( hWnd == NULL ) return FALSE;

::ShowWindow( hWnd,bFlag ? SW_SHOW : SW_HIDE );
::UpdateWindow( hWnd );

return TRUE;
}

// 托盘时钟
// --------------------------------------------
BOOL CHackerTools::TrayClockOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::GetDlgItem( ::FindWindow( _T("Shell_TrayWnd"),NULL ),0x12F );
if( hWnd == NULL ) return FALSE;

hWnd = ::GetDlgItem( hWnd,0x12F );
if( hWnd == NULL ) return FALSE;

::ShowWindow( hWnd,bFlag ? SW_SHOW : SW_HIDE );
::UpdateWindow( hWnd );

return TRUE;
}

// 任务栏中运行应用程序
// --------------------------------------------
BOOL CHackerTools::AppButtonOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::GetDlgItem( ::FindWindow( _T("Shell_TrayWnd"),NULL ),0xA005 );
{
HWND hWndSub;
hWndSub = ::FindWindowEx( hWnd,NULL,_T("MSTaskSwWClass"),_T("运行应用程序") );
if( hWndSub != NULL )
{
   hWndSub = ::FindWindowEx( hWndSub,NULL,_T("ToolbarWindow32"),_T("运行应用程序") );
   if( hWndSub != NULL )
   {
    hWnd = hWndSub;
   }
}
}
if( hWnd == NULL ) return FALSE;

::ShowWindow( hWnd,bFlag ? SW_SHOW : SW_HIDE );
::UpdateWindow( hWnd );

return TRUE;
}

// 托盘通知区域
// ---------------------------------------------
BOOL CHackerTools::NotifyAreaOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::GetDlgItem( ::FindWindow( _T("Shell_TrayWnd"),NULL ),0x12F );
if( hWnd == NULL ) return FALSE;
hWnd = ::FindWindowEx( hWnd,NULL,_T("SysPager"),_T("") );
if( hWnd == NULL ) return FALSE;

::ShowWindow( hWnd,bFlag ? SW_SHOW : SW_HIDE );
::UpdateWindow( hWnd );

return TRUE;
}

// 托盘伸缩按钮
// -----------------------------------------------------
BOOL CHackerTools::TrayExtendedButtonOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::GetDlgItem( ::FindWindow( _T("Shell_TrayWnd"),NULL ),0x12F );
if( hWnd == NULL ) return FALSE;

hWnd = ::GetDlgItem( hWnd,0x5DE );
if( hWnd == NULL ) return FALSE;

::ShowWindow( hWnd,bFlag ? SW_SHOW : SW_HIDE );
::UpdateWindow( hWnd );

return TRUE;
}

// 程序管理器
// -------------------------------------------------
BOOL CHackerTools::ProgramManagerOnOff( BOOL bFlag )
{
HWND hWnd;

hWnd = ::FindWindow( NULL,_T("Program Manager") );
if( hWnd == NULL ) return FALSE;

::SetWindowPos( hWnd,NULL,0,0,0,0,
bFlag ? SWP_SHOWWINDOW : SWP_HIDEWINDOW | SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER
);

return TRUE;
}

关于被0除异常的捕获！
默认情况下，系统屏蔽了浮点数/整数运算时的异常错误，并以0或者无穷大表示结果，并不会产生异常。

这些数值计算异常列表如下：

_EM_INVALID

_EM_DENORMAL

_EM_ZERODIVIDE

_EM_OVERFLOW

_EM_UNDERFLOW

_EM_INEXACT

为了捕获上述异常，必须使用 _controlfp(...)/_control87(...) 运行库函数设置相关的屏蔽位，代码示例如下：

// ZeroDivide.cpp : By YangTze!
//

#include "stdafx.h"

#include <WINDOWS.H>
#include <STDIO.H>
#include <FLOAT.H>

void TestFunc()
{
int i = 888;
int j = 0;

    __try {
        i = i/j;
    }
    __except( GetExceptionCode() == EXCEPTION_INT_DIVIDE_BY_ZERO ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH ) {
        MessageBox( NULL,"EXCEPTION_INT_DIVIDE_BY_ZERO!","Error!",MB_OK );
    }
}

int _tmain(int argc, _TCHAR* argv[])
{
unsigned int nOldMask;
unsigned int nNewMask;

    nOldMask = _controlfp( 0,0 );
    nNewMask = ( ( nOldMask & ~_EM_ZERODIVIDE ) | ( _EM_ZERODIVIDE & _MCW_EM ) );
    _controlfp( nNewMask,_MCW_EM );

TestFunc();

_controlfp( _CW_DEFAULT, 0xfffff );

return 0;
}

程序隐藏之运行时更改名字
当一个程序正在运行时，Windows 系统是不允许把它删除的，但在 Windows 2000/XP 中，当一个程序正在运行时，可以将它本身在相同磁盘分区内重命名和移动位置！

试想想：如果我们的程序一运行，就把自己移动位置并且换个名字，此时，Windows 任务管理器还显示的是原来的名字，嘿嘿，程序不见了（只有你知道哦）...

这种做法有什么用？嘿嘿，干坏事呗！

#include "stdafx.h"

#include <WINDOWS.H>

int _tmain(int argc, _TCHAR* argv[])
{
TCHAR szCurName[1024];
TCHAR szNewName[1024];

GetModuleFileName( NULL,szCurName,MAX_PATH );
_tcscpy( szNewName,szCurName );
_tcsupr( szNewName );
TCHAR *pPostfix = _tcsstr( szNewName,_T(".EXE") );
_tcscpy( pPostfix,_T("Renamed.EXE") );
MoveFile( szCurName,szNewName );

return 0;
}

汇编的魅力
HelloWorld.ASM

; #########################################################################

      .386
      .model flat, stdcall
      option casemap :none ; case sensitive

; #########################################################################

      include c:\masm32\include\windows.inc
      include c:\masm32\include\user32.inc
      include c:\masm32\include\kernel32.inc

includelib c:\masm32\lib\user32.lib
includelib c:\masm32\lib\kernel32.lib

; #########################################################################

      .data
        szHelloWorld db "Hello,World!",0
        szTitle      db "Haha...",0

.code

start:
invoke MessageBox,NULL,ADDR szHelloWorld,ADDR szTitle,MB_OK
invoke ExitProcess,0

end start

附注：随着各种各样高级语言开发平台的百舸争流，心中某种缺憾却越来越强烈，有一种浮砂筑高台的感觉。

用ITaskbarList接口操纵Windows任务栏程序按钮的状态
Step 1: 变量定义

class CXDlg : public CDialog
{
    ......
    public:
        typedef ITaskbarList *LPITaskbarList;
        LPITaskbarList pTaskbar;
    ......
};

Step 2: 初始化任务栏COM 对象

BOOL CXDlg::OnInitDialog()
{
    ......
    // Initializes the Component Object Model(COM)
    CoInitialize(0);
    // We call below function since we only need to create one object
    CoCreateInstance(
        CLSID_TaskbarList,
        0,
        CLSCTX_INPROC_SERVER,
        IID_ITaskbarList,
        (void**)&pTaskbar
    );
    // Below function will initialize the taskbar list object
    pTaskbar->HrInit();
    ......
}

Step 3: 使用：删除/显示任务栏程序按钮

void CXDlg::OnBnClickedButtonHide()
{
pTaskbar->DeleteTab(this->GetSafeHwnd());
}

void CXDlg::OnBnClickedButtonShow()
{
pTaskbar->AddTab(this->GetSafeHwnd());
}

posted @ 2005-08-18 09:25 Eric-Liu 阅读(451) 评论(0) 编辑收藏举报

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