// 激活当前屏幕保护程序 PostMessage(WM_SYSCOMMAND,SC_SCREENSAVE,0);

static UINT dss_GetList[] = {SPI_GETLOWPOWERTIMEOUT, SPI_GETPOWEROFFTIMEOUT, 
SPI_GETSCREENSAVETIMEOUT};
static UINT dss_SetList[] = {SPI_SETLOWPOWERTIMEOUT, SPI_SETPOWEROFFTIMEOUT, 
SPI_SETSCREENSAVETIMEOUT};
static const int dss_ListCount = _countof(dss_GetList);
{
m_pValue = new int[dss_ListCount];
for (int x=0;x<dss_ListCount;x++)
{
// 禁止屏幕保护及电源管理
VERIFY(SystemParametersInfo (dss_SetList[x], 0, NULL, 0));
}
delete[] m_pValue;
}
{
m_pValue = new int[dss_ListCount];
for (int x=0;x<dss_ListCount;x++)
{
//启用屏幕保护及电源管理
VERIFY(SystemParametersInfo (dss_SetList[x], m_pValue[x], NULL, 0));
}
delete[] m_pValue;
}

//激活并打开IE
void lounchIE()
{
  HWND h=FindWindowEx(NULL,NULL,NULL,
                      "Microsoft Internet Explorer") ;
  ShellExecute(h,"open","C:\\simple.html",
               NULL,NULL,SW_SHOWNORMAL);
}
//关闭IE及其它应用
void CloseIE()
{
  int app=BSM_APPLICATIONS;
  unsigned long  bsm_app=(unsigned long )app;
  BroadcastSystemMessage(BSF_POSTMESSAGE,&bsm_app,
                         WM_CLOSE,NULL,NULL);
}

4.何直接运行一个资源中的程序

bool Run() { CFile f; char* pFileName = "Execution.exe"; if( !f.Open( pFileName, Cfile::modeCreate | Cfile::modeWrite, NULL ) ) { AfxMessageBox("Can not create file!"); return 0; } CString path = f.GetFilePath(); HGLOBAL hRes; HRSRC hResInfo; //获取应用实例 HINSTANCE insApp = AfxGetInstanceHandle(); //寻找EXE资源名 hResInfo = FindResource(insApp,(LPCSTR)IDR_EXE4,"EXE"); hRes = LoadResource(insApp,hResInfo ); // Load it DWORD dFileLength = SizeofResource( insApp, hResInfo ); //计算EXE文件大小 f.WriteHuge((LPSTR)hRes,dFileLength); //写入临时文件 f.Close(); HINSTANCE HINSsd = ShellExecute(NULL, "open",path, NULL, NULL, SW_SHOWNORMAL);> //运行它. return 1; }

5.何遍历整个目录

#include <windows.h> #include <shlobj.h> //浏览目录. void BrowseFolder( void ) { TCHAR path[MAX_PATH]; BROWSEINFO bi = { 0 }; bi.lpszTitle = ("递归调用所有目录"); LPITEMIDLIST pidl = SHBrowseForFolder ( &bi ); if ( pidl != 0 ) { // 获取目录路径 SHGetPathFromIDList ( pidl, path ); //设置为当前路径 SetCurrentDirectory ( path ); //搜索所有子目录 SearchFolder( path ); // 释放内存 IMalloc * imalloc = 0; if ( SUCCEEDED( SHGetMalloc ( &imalloc )) ) { imalloc->Free ( pidl ); imalloc->Release ( ); } } //搜索其下所有子目录及文件. void SearchFolder( TCHAR * path ) { WIN32_FIND_DATA FindFileData; HANDLE hFind; TCHAR filename[ MAX_PATH + 256 ]; TCHAR pathbak[ MAX_PATH ]; //复制初始用户选择目录 strcpy( pathbak, path ); //寻找第一个文件 hFind = FindFirstFile ( "*.*", &FindFileData ); //搜索所有文件及子目录 do { if ( hFind != INVALID_HANDLE_VALUE ) { //如果是当前目录或父目录，跳过 if ( ! ( strcmp( FindFileData.cFileName, "." ) ) || ! ( strcmp( FindFileData.cFileName, ".." ) ) ) { continue; } //恢复初始用户选择目录 strcpy( path, pathbak ); //列出所有发现的文件 sprintf( path, "%s\\%s", path, FindFileData.cFileName ); //如果 SetCurrentDirectory 成功的话，则它是一个目录，递归调用继续搜索子目录 if ( ( SetCurrentDirectory( path ) ) ) { SearchFolder( path ); } //插入文件及路径名到列表框m_listbox_hwnd中 SendMessage( m_listbox_hwnd, LB_ADDSTRING, 0, path ); //<--INSERT WHAT YOU WANT DONE HERE! } } while ( FindNextFile ( hFind, &FindFileData ) && hFind != INVALID_HANDLE_VALUE ); FindClose ( hFind ); }

8.如何禁止/启用系统热键

bool bOld; ● 禁止系统热键 //屏蔽掉系统键 SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,true,&bOld, SPIF_UPDATEINIFILE); ● 启用系统热键 //恢复系统热键 SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,false,&bOld, SPIF_UPDATEINIFILE);

9.如何隐藏/显示WINDOWS系统任务栏

● 隐藏系统任务栏

//隐藏WINDOWS系统任务栏 ::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_HIDE);

● 显示系统任务栏

//恢复WINDOWS系统任务栏正常显示 ::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_SHOW);

10.如何实现窗口到系统区图标间的动画效果

//******************************************************************************** //* 名称：FindTrayWnd //* 功能：在显示窗体动画效果前，先寻找系统区位置 //******************************************************************************** BOOL CALLBACK FindTrayWnd(HWND hwnd, LPARAM lParam) { TCHAR szClassName[256]; GetClassName(hwnd, szClassName, 255); // 比较窗口类名 if (_tcscmp(szClassName, _T("TrayNotifyWnd")) == 0) { CRect *pRect = (CRect*) lParam; ::GetWindowRect(hwnd, pRect); return TRUE; } // 当找到时钟窗口时表示可以结束了 if (_tcscmp(szClassName, _T("TrayClockWClass")) == 0) { CRect *pRect = (CRect*) lParam; CRect rectClock; ::GetWindowRect(hwnd, rectClock); pRect->right = rectClock.left; return FALSE; } return TRUE; } //******************************************************************************** //* 名称：WinAnimation //* 功能：显示窗口动画效果的涵数 //******************************************************************************** void CScreenSnapDlg::WinAnimation(BOOL ShowFlag) { CRect rect(0,0,0,0); // 查找托盘窗口 CWnd* pWnd = FindWindow("Shell_TrayWnd", NULL); if (pWnd) { pWnd->GetWindowRect(rect); EnumChildWindows(pWnd->m_hWnd, FindTrayWnd, (LPARAM)&rect); //rect 为托盘区矩形 CRect rcWnd; GetWindowRect(rcWnd); if(ShowFlag) //窗体滑向系统区 DrawAnimatedRects(GetSafeHwnd(),IDANI_CAPTION,rcWnd,rect); else //窗体从系统区滑出 DrawAnimatedRects(GetSafeHwnd(),IDANI_CAPTION,rect,rcWnd); } }

用法如下：

if(IsWindowVisible()) //窗体是否已隐藏 { ShowWindow(SW_HIDE); //先隐藏窗体 WinAnimation(true); //窗体动画滑入到系统区中 } else { WinAnimation(false); //窗体动画从系统区滑出 ShowWindow(SW_SHOW); }

11.如何判断当前操作系统的版本

//----------------------------------------------------------------------------- //判断操作系统涵数及变量，jingzhou xu typedef enum tagWin32SysType{ Windows32s, WindowsNT3, Windows95, Windows98, WindowsME, WindowsNT4, Windows2000, WindowsXP }Win32SysType; //判断操作系统涵数及变量，jingzhou xu Win32SysType IsShellSysType() { Win32SysType ShellType; DWORD winVer; OSVERSIONINFO *osvi; winVer=GetVersion(); if(winVer<0x80000000){/*NT */ ShellType=WindowsNT3; osvi= (OSVERSIONINFO *)malloc(sizeof(OSVERSIONINFO)); if (osvi!=NULL){ memset(osvi,0,sizeof(OSVERSIONINFO)); osvi->dwOSVersionInfoSize=sizeof(OSVERSIONINFO); GetVersionEx(osvi); if(osvi->dwMajorVersion==4L)ShellType=WindowsNT4; else if(osvi->dwMajorVersion==5L&&osvi-> dwMinorVersion==0L)ShellType=Windows2000; else if(osvi->dwMajorVersion==5L&&osvi-> dwMinorVersion==1L)ShellType=WindowsXP; free(osvi); } } else if (LOBYTE(LOWORD(winVer))<4) ShellType=Windows32s; else{ ShellType=Windows95; osvi= (OSVERSIONINFO *)malloc(sizeof(OSVERSIONINFO)); if (osvi!=NULL){ memset(osvi,0,sizeof(OSVERSIONINFO)); osvi->dwOSVersionInfoSize=sizeof(OSVERSIONINFO); GetVersionEx(osvi); if(osvi->dwMajorVersion==4L&&osvi-> dwMinorVersion==10L)ShellType=Windows98; else if(osvi->dwMajorVersion==4L&&osvi-> dwMinorVersion==90L)ShellType=WindowsME; free(osvi); } } return ShellType; } //-----------------------------------------------------------------------

12.如何在指定矩形框内水平/垂直显示多行文字

/////////////////////////////////////////////////////// //说明： // 在矩形框中水平或垂直显示多行文字，jingzhou xu. // lMode: 排列方式，0:水平方式; 1:垂直对齐 // lHori: 水平对齐方式, 0:左对齐; 1:居中; 2:右对齐; 3：自定义 // lVert: 垂直对齐方式, 0:顶对齐; 1:居中; 2:底对齐; 3：自定义 /////////////////////////////////////////////////////// CRect DrawTitleInRect(CDC *pDC, CString szString, LPRECT lpRect, long lMode, long lHori, long lVert) { TEXTMETRIC tm; pDC->GetTextMetrics(&tm); int tmpWidth=tm.tmAveCharWidth, tmpHeight=tm.tmHeight; CRect rcInner(lpRect); if(lMode==0) { rcInner.left+=tmpWidth; rcInner.right-=tmpWidth; rcInner.top-=tmpWidth; rcInner.bottom+=tmpWidth; } if(lMode==1) { rcInner.left+=tmpWidth; rcInner.right=rcInner.left+tmpWidth; rcInner.top-=tmpWidth; rcInner.bottom+=tmpWidth; } pDC->DrawText(szString, rcInner,DT_CALCRECT); switch(lHori) { case 0: break; case 1: { long xOutCent=(lpRect->right+lpRect->left)/2; long xInnCent=(rcInner.right+rcInner.left)/2; rcInner.left+=(xOutCent-xInnCent); rcInner.right+=(xOutCent-xInnCent); } break; case 2: { long lInWidth=rcInner.right-rcInner.left; rcInner.right=lpRect->right-tmpWidth; rcInner.left=rcInner.right-lInWidth; } break; default: break; } switch(lVert) { case 0: break; case 1: { long yOutCent=(lpRect->bottom+lpRect->top)/2; long yInnCent=(rcInner.bottom+rcInner.top)/2; rcInner.top-=(yInnCent-yOutCent); rcInner.bottom-=(yInnCent-yOutCent); } break; case 2: { long lInHeigh=rcInner.top-rcInner.bottom; rcInner.bottom=lpRect->bottom+tmpWidth; rcInner.top=rcInner.bottom+lInHeigh; } break; default: break; } //------------------------------------------------------------------------------ //功能：根据新、老矩形，重新计算行数，使文字多行显示,jingzhou xu //------------------------------------------------------------------------------- //一行中最大字符数 int nMaxLineChar = abs(lpRect->right - lpRect->left) / tmpWidth ; //记录当前行的宽度 short theLineLength=0; //记录当前行中汉字字节数，以防止将一半汉字分为两行 unsigned short halfChinese=0; for(int i=0; i<=szString.GetLength()-1; i++) { if(((unsigned char)szString.GetAt(i) == 0x0d) && ((unsigned char)szString.GetAt(i+1) == 0x0a)) theLineLength=0; //大于0xa1的字节为汉字字节 if((unsigned char)szString.GetAt(i) >= 0xA1) halfChinese++; theLineLength++; //如果行宽大于每行最大宽度，进行特殊处理 if(theLineLength > nMaxLineChar) { //防止将一个汉字分为两行，回溯 if(halfChinese%2) { szString.Insert(i,(unsigned char)0x0a); szString.Insert(i,(unsigned char)0x0d); } else { szString.Insert(i-1,(unsigned char)0x0a); szString.Insert(i-1,(unsigned char)0x0d); } theLineLength = 0; } } //重新计算矩形边界范围 // int tmpLine = int(abs(szString.GetLength()*tmpWidth / abs(lpRect->right - lpRect->left)-0.5)); // tmpLine += (szString.GetLength()*tmpWidth % abs(lpRect->right - lpRect->left))? 1 : 0; // if(tmpLine == 0) // tmpLine = 1; if(rcInner.bottom > lpRect->bottom) rcInner.bottom = lpRect->bottom; if(rcInner.top < lpRect->top) rcInner.top = lpRect->top; //------------------------------------------------------------------------------ if(lHori==0) pDC->DrawText(szString, rcInner, DT_WORDBREAK|DT_LEFT); else if(lHori==1) pDC->DrawText(szString, rcInner, DT_WORDBREAK|DT_CENTER); else if(lHori==2) pDC->DrawText(szString, rcInner, DT_WORDBREAK|DT_RIGHT); return rcInner; }

13.如何在指定矩形中旋转显示文字

/////////////////////////////////////////////////////// //说明： // 在矩形框中旋转方式显示文字，jingzhou xu //参数： // pDC: DC指针 // str: 显示文字 // rect: 显示范围 // angle: 旋转角度 // nOptions: ExtTextOut()中相应设置<ETO_CLIPPED 和 ETO_OPAQUE> /////////////////////////////////////////////////////// void DrawRotatedText(CDC* pDC, const CString str, CRect rect, double angle, UINT nOptions) { //按比例转换角度值 double pi = 3.141592654; double radian = pi * 2 / 360 * angle; //获取显示文字中心点 CSize TextSize = pDC->GetTextExtent(str); CPoint center; center.x = TextSize.cx / 2; center.y = TextSize.cy / 2; //计算显示文字新的中心点 CPoint rcenter; rcenter.x = long(cos(radian) * center.x - sin(radian) * center.y); rcenter.y = long(sin(radian) * center.x + cos(radian) * center.y); //绘制文字 pDC->SetTextAlign(TA_BASELINE); pDC->SetBkMode(TRANSPARENT); pDC->ExtTextOut(rect.left + rect.Width() / 2 - rcenter.x, rect.top + rect.Height() / 2 + rcenter.y, nOptions, rect, str, NULL); }