编程技巧20法(11-20)

天云上人 · 发表于 2004-1-4 21:09:15

编程技巧20法(11-20)
徐景周
日期:2002-09-12


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

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
///////////////////////////////////////////////////////

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);
}

14. 如何将32 x 32像素图标转换为16 x 16像素值的图标

HICON Convert32x32IconTo16x16(HICON h32x32Icon)
{
  HDC hMainDC, hMemDC1, hMemDC2;
  HICON h16x16Icon;
  BITMAP bmp;
  HBITMAP hOldBmp1, hOldBmp2;
  ICONINFO IconInfo32x32, IconInfo16x16;

  GetIconInfo(h32x32Icon, &IconInfo32x32);

  hMainDC = ::GetDC(m_hWnd);
  hMemDC1 = CreateCompatibleDC(hMainDC);
  hMemDC2 = CreateCompatibleDC(hMainDC);

  GetObject(IconInfo32x32.hbmColor, sizeof(BITMAP), &bmp);

  IconInfo16x16.hbmColor = CreateBitmap( 16, 16,
                                       bmp.bmPlanes,
                                       bmp.bmBitsPixel,
                                       NULL);

  hOldBmp1 = (HBITMAP) SelectObject( hMemDC1,
                                 IconInfo32x32.hbmColor);
  hOldBmp2 = (HBITMAP) SelectObject( hMemDC2,
                                 IconInfo16x16.hbmColor);

  StretchBlt(hMemDC2,
   0, 0,
   16, 16,
   hMemDC1,
   0, 0,
   32, 32,
   SRCCOPY
   );

  GetObject(IconInfo32x32.hbmMask, sizeof(BITMAP), &bmp);

  IconInfo16x16.hbmMask = CreateBitmap( 16, 16,
                                    bmp.bmPlanes,
                                    bmp.bmBitsPixel,
                                    NULL);

  SelectObject(hMemDC1, IconInfo32x32.hbmMask);
  SelectObject(hMemDC2, IconInfo16x16.hbmMask);

  StretchBlt(hMemDC2,
         0, 0,
         16, 16,
         hMemDC1,
         0, 0,
         32, 32,
         SRCCOPY
   );

  SelectObject(hMemDC1, hOldBmp1);
  SelectObject(hMemDC2, hOldBmp2);

  IconInfo16x16.fIcon = TRUE;
  h16x16Icon = CreateIconIndirect(&IconInfo16x16);
  DeleteObject(IconInfo32x32.hbmColor);
  DeleteObject(IconInfo16x16.hbmColor);
  DeleteObject(IconInfo32x32.hbmMask);
  DeleteObject(IconInfo16x16.hbmMask);
  DeleteDC(hMemDC1);
  DeleteDC(hMemDC2);

  ::ReleaseDC(m_hWnd, hMainDC);
  return h16x16Icon;
}

15. 如何建立一个灰度级图标

HICON CreateGrayscaleIcon(HICON hIcon)
{
  HICON    hGrayIcon = NULL;
  HDC       hMainDC = NULL,
            hMemDC1 = NULL,
            hMemDC2 = NULL;
  BITMAP    bmp;
  HBITMAP    hOldBmp1 = NULL,
            hOldBmp2 = NULL;
  ICONINFO csII, csGrayII;
  BOOL       bRetValue = FALSE;

  bRetValue = ::GetIconInfo(hIcon, &csII);

  if (bRetValue == FALSE) return NULL;

  hMainDC = ::GetDC(m_hWnd);
  hMemDC1 = ::CreateCompatibleDC(hMainDC);
  hMemDC2 = ::CreateCompatibleDC(hMainDC);
  if (hMainDC == NULL ||
hMemDC1 == NULL ||
hMemDC2 == NULL)
   return NULL;

  if (::GetObject(csII.hbmColor,
            sizeof(BITMAP), &
            amp;bmp))
  {
csGrayII.hbmColor =
      ::CreateBitmap(csII.xHotspot*2,
                     csII.yHotspot*2,
                     bmp.bmPlanes,
                     bmp.bmBitsPixel,
                     NULL);
if (csGrayII.hbmColor)
{
   hOldBmp1 =
      (HBITMAP)::SelectObject(hMemDC1,
                              csII.hbmColor);
   hOldBmp2 =
      (HBITMAP)::SelectObject(hMemDC2,
                              csGrayII.hbmColor);

   ::BitBlt(hMemDC2, 0, 0, csII.xHotspot*2,
            csII.yHotspot*2, hMemDC1, 0, 0,
            SRCCOPY);

   DWORD dwLoopY = 0, dwLoopX = 0;
   COLORREF crPixel = 0;
   BYTE    byNewPixel = 0;
   for (dwLoopY = 0; dwLoopY < csII.yHotspot*2; dwLoopY++)
   {
      for (dwLoopX = 0; dwLoopX < csII.xHotspot*2; dwLoopX++)
      {
      crPixel = ::GetPixel(hMemDC2, dwLoopX, dwLoopY);
      byNewPixel = (BYTE)((GetRValue(crPixel) * 0.299) +
            (GetGValue(crPixel) * 0.587) +
            (GetBValue(crPixel) * 0.114));
      if (crPixel) ::SetPixel(hMemDC2,
                              dwLoopX,
                              dwLoopY,
                              RGB(byNewPixel,
                              byNewPixel,
                              byNewPixel));
   } // for
   } // for
   ::SelectObject(hMemDC1, hOldBmp1);
   ::SelectObject(hMemDC2, hOldBmp2);

   csGrayII.hbmMask = csII.hbmMask;
   csGrayII.fIcon = TRUE;
   hGrayIcon = ::CreateIconIndirect(&csGrayII);
} // if
:

eleteObject(csGrayII.hbmColor);
//:

eleteObject(csGrayII.hbmMask);
} // if
:

eleteObject(csII.hbmColor);
  ::DeleteObject(csII.hbmMask);
  ::DeleteDC(hMemDC1);
  ::DeleteDC(hMemDC2);
  ::ReleaseDC(m_hWnd, hMainDC);

  return hGrayIcon;
}

16. 如何按指定角度旋转显示内存位图(用法和BitBlt类似)

void RotBlt(HDC destDC, int srcx1, int srcy1, int srcx2, int srcy2,

  HDC srcDC , int destx1, int desty1 ,int thetaInDegrees ,DWORD mode)
{
  double theta = thetaInDegrees * (3.14159/180);

  //原图像原始大小

  int width = srcx2 - srcx1;
  int height = srcy2 - srcy1;

  //原图像中心点
  int centreX = int(float(srcx2 + srcx1)/2);
  int centreY = int(float(srcy2 + srcy1)/2);

  //判断出图像可以沿任意方向旋转的矩形框
  if(width>height)height = width;
  else
width = height;

  HDC memDC = CreateCompatibleDC(destDC);
  HBITMAP memBmp = CreateCompatibleBitmap(destDC, width, height);

  HBITMAP obmp = (HBITMAP) SelectObject(memDC, memBmp);

  //内存DC新在中心点

  int newCentre = int(float(width)/2);
  //开始旋转
  for(int x = srcx1; x<=srcx2; x++)
for(int y = srcy1; y<=srcy2; y++)
{
   COLORREF col = GetPixel(srcDC,x,y);
   int newX = int((x-centreX)*sin(theta)+(y-centreY)*cos(theta));
   int newY = int((x-centreX)*cos(theta)-(y-centreY)*sin(theta));
   SetPixel(memDC , newX + newCentre, newY + newCentre, col);
}

  //复制到目标DC上
  BitBlt(destDC, destx1, desty1, width, height, memDC, 0,0,mode);
  //释放内存
  SelectObject(memDC, obmp);
  DeleteDC(memDC);
  DeleteObject(memBmp);
}

用法：

RotBlt(dc, 0,0,150,150,memDC,200,0, 45, SRCCOPY);

17. 如何将指定的窗体，以位图形式复制到系统剪切板上

void CScreenSnapDlg::toClipboard_Bio(CWnd * wnd, BOOL FullWnd)
{
   CDC *dc;
   if(FullWnd)
      { /* 抓取整个窗口 */
      dc = new CWindowDC(wnd);
      } /* 抓取整个窗口 */
   else
      { /* 仅抓取客户区时 */
      dc = new CClientDC(wnd);
      } /* 仅抓取客户区时 */

   CDC memDC;
   memDC.CreateCompatibleDC(dc);

   CBitmap bm;
   CRect r;
   if(FullWnd)
      wnd->GetWindowRect(&r);
   else
      wnd->GetClientRect(&r);

   CString s;
   wnd->GetWindowText(s);
   CSize sz(r.Width(), r.Height());

   bm.CreateCompatibleBitmap(dc, sz.cx, sz.cy);
   CBitmap * oldbm = memDC.SelectObject(&bm);
   memDC.BitBlt(0, 0, sz.cx, sz.cy, dc, 0, 0, SRCCOPY);

   //直接调用OpenClipboard()，而不用wnd->GetParent()->OpenClipboard();
   wnd->OpenClipboard();
   ::EmptyClipboard();
   ::SetClipboardData(CF_BITMAP, bm.m_hObject);
   CloseClipboard();

   //恢复原始环境
   memDC.SelectObject(oldbm);
   bm.Detach();
   delete dc;
}

18. 如何替换HBITMAP中的颜色值

#define COLORREF2RGB(Color) (Color & 0xff00) | ((Color >> 16) & 0xff) \
                                          | ((Color << 16) & 0xff0000)

HBITMAP ReplaceColor (HBITMAP hBmp,COLORREF cOldColor,COLORREF cNewColor)
{
HBITMAP RetBmp=NULL;
if (hBmp)
{
      HDC BufferDC=CreateCompatibleDC(NULL);       // 源位图DC
      if (BufferDC)
      {
         SelectObject(BufferDC,hBmp); 　 // 选入DC中
         HDC DirectDC=CreateCompatibleDC(NULL);    // 目标DC
         if (DirectDC)
         {
            // 获取源位图大小
            BITMAP bm;
            GetObject(hBmp, sizeof(bm), &bm);

            // 初始化BITMAPINFO信息，以便使用CreateDIBSection
            BITMAPINFO RGB32BitsBITMAPINFO;
            ZeroMemory(&RGB32BitsBITMAPINFO,sizeof(BITMAPINFO));
            RGB32BitsBITMAPINFO.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
            RGB32BitsBITMAPINFO.bmiHeader.biWidth=bm.bmWidth;
            RGB32BitsBITMAPINFO.bmiHeader.biHeight=bm.bmHeight;
            RGB32BitsBITMAPINFO.bmiHeader.biPlanes=1;
            RGB32BitsBITMAPINFO.bmiHeader.biBitCount=32;

            UINT * ptPixels;
            HBITMAP DirectBitmap= CreateDIBSection(DirectDC,
                     (BITMAPINFO *)&RGB32BitsBITMAPINFO,
                     DIB_RGB_COLORS,(void **)&ptPixels, NULL, 0);
            if (DirectBitmap)
            {
                  HGDIOBJ PreviousObject=SelectObject(DirectDC, DirectBitmap);
                  BitBlt(DirectDC,0,0,bm.bmWidth,bm.bmHeight,BufferDC,0,0,SRCCOPY);

                  // 转换 COLORREF 为 RGB
                  cOldColor=COLORREF2RGB(cOldColor);
                  cNewColor=COLORREF2RGB(cNewColor);
                  // 替换颜色
                  for (int i=((bm.bmWidth*bm.bmHeight)-1);i>=0;i--)
                  {
                     if (ptPixels==cOldColor) ptPixels=cNewColor;
6 t, P6 `/ Y! t  g0 R) ], |                   }1 q' E3 ]4 U" B' W+ S' @" B

! B5 k% r; e( M% f                   // 修改位图 DirectBitmap
- {+ l- V6 o7 i9 \1 Y) {' A                   SelectObject(DirectDC,PreviousObject);
' L# R1 F( ?) E0 }* Y                   ' u& C- w  k/ E0 {" v4 e' \
                  // 完成
5 o# F. z/ Z, ^" I                   RetBmp=DirectBitmap;9 _: S$ V, w: f) D0 g" R- \0 u' N
            }# J% [, t, v9 I. c6 a+ q* w8 o" o
            // 释放DC' T* |3 S$ e* B- A  h' t
            DeleteDC(DirectDC);
) Y6 z8 e5 o% f4 F7 _: g$ U% N% t          }
  e9 Q" i  O) n, {          // 释放DC8 E4 ?, r1 L+ G( L
         DeleteDC(BufferDC);
. K* o4 T$ i4 k, T# c8 M4 b/ ]       }
$ L  L+ p, p* t( B4 a0 k$ T5 u) w }, a  [6 \2 K' E1 v$ W2 {& s
return RetBmp;
! |3 \5 S  }0 W/ ^$ J- k}5 e- o: Y/ K$ r4 L: X
; O4 \5 s5 Z2 ?, g3 K: S; P
9 i  q9 K1 h  S
用法：2 x8 c# ^  _7 @- R5 U

1 s$ [( |% q- Y- ^, D5 AHBITMAP hBmp2 = LoadBitmap(g_hinstance,MAKEINTRESOURCE(IDB_SAMPLEBITMAP));
, {5 t& |3 r6 ]/ z3 _6 Z" O9 RHBITMAP hBmp = ReplaceColor(hBmp2,0xff0000,0x00ff00); // 替换蓝色为绿色
0 M8 d* G8 t2 _* x2 k: a......1 z2 g  i& q2 Y  y/ ^* W
% {6 O5 z# ?/ o6 @; Y! {
DeleteObject(hBmp2);/ c9 K! I$ t0 q$ l' p" l
DeleteObject(hBmp);
! A5 W- H6 ^% w0 S: ^5 R
/ ^) b+ C, f2 W; m$ J; s* U9 G: `
19. 如何转换并保存位图7 O3 I3 O, o/ d: X
/ _; k6 V  j( z% G7 H$ @% _
//********************************************************************************3 V9 }9 B# B) h# t" v: E- c" R7 a
//* 名称：DDBToDIB
+ s* L7 e( w2 }+ b* V. x5 @; N//* 作者：徐景周(jingzhou_xu@163.net)
- m+ e) J) R) i  p- L: j//* 功能：设备相关转换为设备无关位图1 c0 e) o/ M! ~) \  v- T9 _
//********************************************************************************
  Q( b- [- y% m$ O* z' z" W
/ ]. }  D! k1 kHANDLE CScreenSnapDlg::DDBToDIB( CBitmap& bitmap, DWORD dwCompression /* = BI_RGB */) ' u6 _) w1 A( \  G; A
{8 D* h  k2 k- e0 E
BITMAP             bm;
1 v/ K) z9 R6 g BITMAPINFOHEADER bi;
# ]. e; @& c1 t' E3 ^ LPBITMAPINFOHEADER  lpbi;7 i/ w7 l6 ?4 f: f% a  j( P9 W
DWORD             dwLen;
( S8 W6 _& D' I- V( @- ^' r7 r  b HANDLE             hDIB;
5 \% K8 G+ f3 J6 X) p HANDLE             handle;
# D8 |, `/ D7 ~3 {9 h HDC                   hDC;
3 s( e# W  |) U HPALETTE          hPal;3 z( O/ `- `9 y( b
3 @: b0 s& s/ B# ]% p
CWindowDC          dc( this );
9 ]8 k: Q, R4 T, u' u CPalette          pal;. A9 e$ S1 C' ]+ i
//如果支持调色板的话，则建立它! ~6 U. {  x" H3 b& d6 x
if( dc.GetDeviceCaps( RASTERCAPS ) & RC_PALETTE )
1 t) m& o- L$ m, N" H {" P7 |1 n+ ?7 o# S" S6 y
      UINT       nSize = sizeof(LOGPALETTE) + ( sizeof(PALETTEENTRY) * 256 );
, k6 P8 i( G5 ~/ c, E: Q. A% Y       LOGPALETTE* pLP    = (LOGPALETTE*)new BYTE[nSize];! T+ O2 l: E: q  \; e5 C! B
      pLP->palVersion    = 0x300;/ V* N, I4 a7 c/ l3 q7 L! j3 a
      pLP->palNumEntries = (unsigned short)GetSystemPaletteEntries( dc, 0, 255,
9 T. I0 Y  ~  d0 `       pLP->palPalEntry );
) K4 s9 M! D7 m6 I, w) a
' S& a( ?0 o# N( w; H7 K       pal.CreatePalette( pLP );
' n" t+ Q3 ?* {: X: T( I, B2 A$ A$ @6 \, a
      //释放
! m7 Y4 N- d0 D       delete[] pLP;
; J9 P1 Z& _$ N6 t# k* T% r7 r }- ]& ?8 J( I/ ~0 o, P8 b' O! f7 b
9 ?& ]+ P' b* |: C% _
ASSERT( bitmap.GetSafeHandle() );
0 k8 o2 D8 Q  n
/ v/ M' I' ]9 {3 ^; b
: E' W3 n1 m3 Y7 m //不支持BI_BITFIELDS类型" V. E/ W6 O# f9 X! c
if( dwCompression == BI_BITFIELDS ); S  N& \' [9 v! _
      return NULL;9 }& t+ Y' J9 ~' j
; {' i  F5 v& @( \
//如果调色板为空，则用默认调色板
+ M( `* Z/ l0 T( y# \ hPal = (HPALETTE) pal.GetSafeHandle();7 Q/ ~3 t0 T( A) e
if (hPal==NULL)6 j4 b; l" h  P$ |4 h- f
      hPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);% @# S. a* x6 G6 s, J( |
5 _6 N/ ~  D+ H/ M3 i
//获取位图信息& {+ r! d* U4 ], B; o
bitmap.GetObject(sizeof(bm),(LPSTR)&bm);4 y$ U. I* }6 @. l; Q& T1 }
& c8 A9 y) c4 B3 a' \; G
//初始化位图信息头
9 m  S  L/ S3 H bi.biSize       = sizeof(BITMAPINFOHEADER);
* P2 t) q1 r$ O# { bi.biWidth       = bm.bmWidth;
" H, J" i1 Y. f1 Z- r/ ?) f' m bi.biHeight       = bm.bmHeight;8 ~% F1 ~4 Z8 U1 k
bi.biPlanes       = 1;( N' B& H, ~! R% a, g
bi.biBitCount       = (unsigned short)(bm.bmPlanes * bm.bmBitsPixel) ;
9 }0 s3 J  u" F+ O! _ bi.biCompression = dwCompression;; W# v+ u* ^8 i* Y- Y: y
bi.biSizeImage       = 0;( \1 t) Z$ J4 s$ s" k
bi.biXPelsPerMeter = 0;
, q! k9 j# B% T bi.biYPelsPerMeter = 0;6 ]8 x* K6 V, J$ N% Y2 _  ]. x
bi.biClrUsed       = 0;
3 @5 n+ {% _- d6 n6 p0 I$ q bi.biClrImportant = 0;# Y" c, Y& g) C/ g

0 }; ^! ~$ _7 @; x+ [ //计算信息头及颜色表大小% f$ ^5 B! A% S( z( l1 a
int nColors = 0;& Q! p! }, u: a- G" L- E" Z  W' D
if(bi.biBitCount <= 8)7 g( W# I9 O* l
      {& ~, L3 j: |, d# A' B, ^
      nColors = (1 << bi.biBitCount);' B( h. i) t  k) {* N) v) {/ R% F
      }
3 z& ]$ U. }1 y dwLen  = bi.biSize + nColors * sizeof(RGBQUAD);
1 |, s% b# y0 K+ E7 Z4 s
  p! D0 ^% ]* I& E% d hDC = ::GetDC(NULL);2 G: w: D0 l8 Y2 e
hPal = SelectPalette(hDC,hPal,FALSE);0 b% R4 d' ^/ c$ R$ f: l
RealizePalette(hDC);
0 P# ~5 u, v2 @
! D8 z. d! F: Y& l //为信息头及颜色表分配内存
7 O. q/ u) z# z' q hDIB = GlobalAlloc(GMEM_FIXED,dwLen);/ l' L7 x+ i8 Y; n. R4 h. u3 q0 O
if (!hDIB){. w3 O6 o- B# G. a. f+ I
      SelectPalette(hDC,hPal,FALSE);0 z0 A5 w. L7 n7 u) L$ ^" A; g5 ]9 P
      ::ReleaseDC(NULL,hDC);7 g  \5 h$ G  m' h% k
      return NULL;
6 g- ~+ Q4 O6 T/ A% P/ ] }7 }% e7 Y8 D# y
  f' w; T3 j6 t6 v4 _3 w8 o
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDIB);
$ Z6 c* q6 l- m5 l4 m *lpbi = bi;7 S; i, K6 v% y7 z, s: j: @

! p1 r9 o5 t- K+ a. K) v //调用 GetDIBits 计算图像大小
5 E( t4 Q/ j3 `$ i7 K GetDIBits(hDC, (HBITMAP)bitmap.GetSafeHandle(), 0L, (DWORD)bi.biHeight,
3 q# d, D, P2 c          (LPBYTE)NULL, (LPBITMAPINFO)lpbi, (DWORD)DIB_RGB_COLORS);
2 S% k7 J& y7 A2 O& Q3 s/ f2 n- C1 W& F; }- k& _" y  {4 O& A  a% b
bi = *lpbi;
; T  B& |' q, E3 ^6 Q3 e* Q; n3 k7 P( F& U- [* h2 B) I/ ]9 K
//图像的每一行都对齐(32bit)边界+ `0 j, W* K! {& y" q  ~
if (bi.biSizeImage == 0){
* t/ I+ H; u% y1 ^, ^" v       bi.biSizeImage = ((((bi.biWidth * bi.biBitCount) + 31) & ~31) / 8)
7 q# c& Y, @9 R/ o5 i. P                      * bi.biHeight;* g; ~( L# [1 G6 N
      if (dwCompression != BI_RGB)
( f: k& F1 y: c6 ]$ s          bi.biSizeImage = (bi.biSizeImage * 3) / 2;$ G+ J, c) s5 B! H1 ]9 I8 [! p
}9 G( Q$ k& q# Y7 `
//重新分配内存大小，以便放下所有数据
- l( {* e1 ^" _( o dwLen += bi.biSizeImage;' \; Z2 c0 W& L. n
handle = GlobalReAlloc(hDIB, dwLen, GMEM_MOVEABLE) ;" w5 c& b; F3 }
if (handle != NULL)
9 e6 M& ]" d  W2 R       hDIB = handle;
1 S: v: @0 @$ F, ?3 q0 I else% k9 T( n/ W& f6 D
      {+ w  P+ N- S& m
      GlobalFree(hDIB);" |8 Q3 n" {& {# p9 V% A8 V: ~
) y- X, o( b/ {7 P. L% C1 j0 S8 _: }! w
      //重选原始调色板( m) Z! N% b' n, M2 u( E9 Q. Z* ?
      SelectPalette(hDC,hPal,FALSE);
0 W0 B) G+ }( ~       ::ReleaseDC(NULL,hDC);  ~3 R0 U5 P* y# U" a; N! Y6 ~! n
      return NULL;
1 U9 ~0 V5 C: h7 \, j- S3 n7 F       }) J' D: O* L9 {% o* s3 o/ _2 t0 l
//获取位图数据
$ E& v& j+ ?1 K' U7 V  u lpbi = (LPBITMAPINFOHEADER)hDIB;
8 H  h/ m4 h# ]/ ^( P: O- i# G* Q: B //最终获得的DIB
' t5 h& q: U4 g* G# l BOOL bGotBits = GetDIBits( hDC, (HBITMAP)bitmap.GetSafeHandle(),
! F$ n9 @; J2 y             0L,                   //扫描行起始处+ b7 S  M4 N5 m: |
            (DWORD)bi.biHeight,    //扫描行数. x5 Q9 Y! P) y0 v! x  n; k; \
            (LPBYTE)lpbi          //位图数据地址
; \, g1 k$ e5 w             + (bi.biSize + nColors * sizeof(RGBQUAD)),
: E- d$ I$ n: A- D6 E0 J6 ^             (LPBITMAPINFO)lpbi,    //位图信息地址( m% R3 p3 ?0 ]9 z% {$ b
            (DWORD)DIB_RGB_COLORS);  //颜色板使用RGB7 Q( T9 Z/ c( s5 N
if( !bGotBits )4 m' O6 C" r( E; c3 i
{
- s$ k3 Y0 h, P" I: A! l# O/ [( w       GlobalFree(hDIB);( |# G# a. L  a/ t- a& N8 b
      SelectPalette(hDC,hPal,FALSE);
* M0 s6 g& W9 Q- x- O       ::ReleaseDC(NULL,hDC);/ r5 H6 R  M3 w- j. D+ C% {, k
      return NULL;
/ j+ D% ~* q! Q( R" C% k9 y' z! ~ }
. O/ q: n. A$ t5 d) E SelectPalette(hDC,hPal,FALSE);# F3 B, W* S1 H
::ReleaseDC(NULL,hDC);; I2 J0 F7 e0 n' ~7 G
return hDIB;
/ K6 q( S* M1 J) m0 {7 D! N}+ @: T: \6 t. O
! ^* E+ G+ O) F* V, R, l9 n
0 v' [, @( m4 J' _
//********************************************************************************
" E$ u8 l6 D% I: F//* 名称：SaveBitmapToFile
( ]* X* Q$ r6 k//* 修改：徐景周(jingzhou_xu@163.net)
- \0 P$ l, A/ |% {6 D$ @//* 功能：保存为位图文件
( u8 e& m3 h: b//********************************************************************************
/ \& d1 P- b5 Z1 z- A9 _7 FBOOL CScreenSnapDlg::SaveBitmapToFile(HBITMAP hBitmap , CString lpFileName) 7 H: J) N, w, }5 ?4 i0 p+ {
{+ a1 `8 a$ E" G5 d4 J; L
HDC             hDC;                         //设备描述表
0 p: u# J6 ]" L  @" t% Y  q2 v int             iBits;                         //当前显示分辨率下每个像素所占字节数4 O6 I3 [! ~* k: L
WORD          wBitCount;                      //位图中每个像素所占字节数
% @  ~6 K& A6 o0 u+ v DWORD          dwPaletteSize=0,             //定义调色板大小，位图中像素字节大小，位图文件大小，写入文件字节数- i( E  D. [- D) T
                  dwBmBitsSize,9 w, d1 z6 A9 l  @$ A
                  dwDIBSize, dwWritten;
7 h7 A0 G4 K' Q8 R8 k8 K+ L+ |9 @ BITMAP       Bitmap;       ; _* I+ Y5 e% ?
BITMAPFILEHEADER bmfHdr;                      //位图属性结构 5 S( m1 b9 }6 _. ?4 M) {
BITMAPINFOHEADER bi;                         //位图文件头结构    1 a0 q1 f6 h, V# O1 M  j
LPBITMAPINFOHEADER lpbi;                      //位图信息头结构
! q% b7 x# e7 L6 I: w) J- t/ g. _( ?1 {
HANDLE       fh, hDib, hPal,hOldPal=NULL; //指向位图信息头结构,定义文件，分配内存句柄，调色板句柄
& s; |' A- D2 G) ?8 @$ l- c1 h) o1 n. g
3 t8 }) d8 l/ h9 Y8 I5 m1 E7 Q, C. {
//计算位图文件每个像素所占字节数
5 o: r0 i. Q# G# `  W hDC = CreateDC("DISPLAY",NULL,NULL,NULL);
' K, i$ s! l4 ~1 B( G" x" r7 X iBits = GetDeviceCaps(hDC, BITSPIXEL) *
8 m4 ^/ @7 o! j; p GetDeviceCaps(hDC, PLANES);
* U5 d2 x& x2 h  P DeleteDC(hDC);
" e- q, X+ Y8 v if (iBits <= 1)6 G1 ]/ c/ ?- v4 L, z+ q! I
   wBitCount = 1;2 ^9 L/ s! P: Z* E9 L
else if (iBits <= 4)! |* b0 m& @8 A) w* z  l! D9 ?, q
   wBitCount = 4;
6 g. _9 l$ G$ y else if (iBits <= 8); R6 Q) A/ h, E& J5 \6 f
   wBitCount = 8;! i6 }% Q* G+ Z; I2 [$ R
else if (iBits <= 24)( c7 E2 }% B: o3 \3 ^6 y' L% I
   wBitCount = 24;; B; v' w, C/ o) y0 ?
( T8 ~" M: p5 n- x8 ?* a* N
//计算调色板大小
7 c- C* D( V2 x: X/ t9 v* c3 V0 A if (wBitCount <= 8)5 S" |# a7 u! G) g5 |
   dwPaletteSize = (1 << wBitCount) *sizeof(RGBQUAD);
9 r/ n3 \. ]! t7 w' N' A
5 M9 B0 M1 S, o6 k% R8 P! w( a! G //设置位图信息头结构
7 Y9 w2 \5 L9 S& E8 G' ~$ D( K, | GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&Bitmap);/ p. \* o/ |3 c" A7 [
bi.biSize          = sizeof(BITMAPINFOHEADER);; O; D  _# s' O+ G% n7 L
bi.biWidth          = Bitmap.bmWidth;# U! a& Z: f) A" ~6 ?% I
bi.biHeight       = Bitmap.bmHeight;6 m8 K( b9 e, X; `1 T1 j1 l
bi.biPlanes       = 1;6 F/ J/ f$ D1 ]2 L; F/ X9 {% G: d
bi.biBitCount       = wBitCount;
" r1 X, a2 b5 K  j$ ?) U! J) g$ B bi.biCompression    = BI_RGB;
. E$ z, h" W7 T% h0 f; }) U+ f bi.biSizeImage       = 0;2 x. q) ]2 {6 y% ~6 ]6 }
bi.biXPelsPerMeter    = 0;4 k# Q  j; p: @. e' S; q9 C$ i& k
bi.biYPelsPerMeter    = 0;
* Q8 Y% M( A; S bi.biClrUsed       = 0;
+ o8 T5 l" [: B bi.biClrImportant    = 0;
0 Z  O. X# }/ F5 N$ D4 c dwBmBitsSize = ((Bitmap.bmWidth *+ F: O3 A% S' I. Y- L4 S) @/ L
wBitCount+31)/32)* 4# S9 `: N: x7 P0 O
   *Bitmap.bmHeight ;0 C" n" C( U6 c: b0 A
" E  K' g! p4 ?: ~: W2 D$ R
//为位图内容分配内存
. w# u" O. [  {7 I/ O hDib  = GlobalAlloc(GHND,dwBmBitsSize+
' W. u* X& I6 D) B4 {, H dwPaletteSize+sizeof(BITMAPINFOHEADER));
* ~5 V: |: O4 t* f! @% d$ d# @ lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);( m5 W9 L) }4 j' q$ g7 |8 ?
*lpbi = bi;+ B- v, p$ G3 W8 s2 p' j8 @

7 ~! f1 J+ @* q! p( m; \& w4 \ // 处理调色板
. j7 a6 I# y! `( ~- f hPal = GetStockObject(DEFAULT_PALETTE);4 {/ \( f+ I* }( P7 j2 x4 w
if (hPal)# I& `. G) b3 z$ W3 [# x: R, s5 S
{( L0 s, q: \6 q
   hDC  = ::GetDC(NULL);
3 t/ f* K( W. R% E6 T' Q    hOldPal = SelectPalette(hDC, (HPALETTE)hPal, FALSE);
0 y6 }! `& U6 S: s# F    RealizePalette(hDC);+ v6 N- O- X; q$ d' U; }0 V7 N
}
6 V' z! S: x9 F7 z
, G" _, f! d: R. a2 a  // 获取该调色板下新的像素值7 d" @9 K* ?& a9 l& Q5 C
GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight,
# c/ D6 ~7 Q% F8 ]" @7 Q    (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)+dwPaletteSize,
3 e* t7 S# q7 t" s& b8 u+ k    (LPBITMAPINFO)lpbi, DIB_RGB_COLORS);
6 U' O* Q" t" P# b& \1 @! b
$ c5 R# B( a% q+ V3 m- B  N  //恢复调色板
$ n* V1 Q3 E+ p, Z0 M2 I' Y3 x if (hOldPal): P) B. A: ~, J3 y& a% y8 l
{) i; K  U' ?" F# a, H0 h( p
   SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);
, V0 q$ i% }* z6 D& n, M* j    RealizePalette(hDC);
  y3 w2 i8 `. J/ B; w; f    ::ReleaseDC(NULL, hDC);
2 O. Z4 S7 h! @- {! e }' k- r# {/ d5 E! x" d) F

8 i2 e1 k( h0 ^+ i1 p$ b //创建位图文件 6 n$ [0 K5 z0 [) D/ w  Y1 P" ~8 I. `( J
fh = CreateFile(lpFileName, GENERIC_WRITE,
, Q1 N: ]9 Q1 F% P8 y) _4 D       0, NULL, CREATE_ALWAYS,5 Q' M  l- W# R0 h2 @* l
      FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);; I9 q2 h- u) }5 w' E- B9 T3 h  H6 W8 W
if (fh == INVALID_HANDLE_VALUE)' Y+ y+ O/ y+ @7 X/ E
   return FALSE;
" W" k4 a. _3 J
2 J+ [" i" Q1 L5 w/ Q0 ^ // 设置位图文件头7 j# F2 K& o2 l& `# V0 w! }0 q
bmfHdr.bfType = 0x4D42;  // "BM"
5 `2 P$ K; v4 K# X* B9 b dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;  - B; ^+ e$ [1 }4 H: }+ y5 l/ h6 ?! ]
bmfHdr.bfSize = dwDIBSize;
+ z0 W) A0 h) K8 P& N# W7 f% L/ b' P bmfHdr.bfReserved1 = 0;
' }1 `$ i9 k$ N* l. l2 | bmfHdr.bfReserved2 = 0;- e+ l  x9 F2 p9 l; e& r" A
bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER)
! [- ?1 v9 W% s6 G  K, f9 o    + (DWORD)sizeof(BITMAPINFOHEADER)  T' E( J# w% f6 V, T% R3 l
   + dwPaletteSize;  \# B! O4 w* R0 g

/ F0 G) V" [# {& P. v  `8 \9 Y# z! o! H
// 写入位图文件头
8 Q8 ?1 |- W1 s4 e- o7 |2 ] WriteFile(fh, (LPSTR)&bmfHdr, sizeof' e, ^5 N% r8 \+ Y. ^
(BITMAPFILEHEADER), &dwWritten, NULL);
2 V2 r* {6 i9 v; t$ c
+ \9 n, W  ~; ^ // 写入位图文件其余内容4 F  C. R! R! f
WriteFile(fh, (LPSTR)lpbi, dwDIBSize,
+ |& m2 ]+ @/ E. ^; T" u &dwWritten, NULL);
/ {' r' `% d7 a2 c7 R7 E
+ ~) y8 w/ P! y# O5 d //消除内存分配
- s; G* }' o: b1 J  s7 P" q2 B, s GlobalUnlock(hDib);
* }2 V( Y0 z, q  G GlobalFree(hDib);
; O. X, m2 ?4 F7 h CloseHandle(fh);
* b, }4 V5 F8 s2 B" o) [/ V( }/ z: }. ~7 W
return TRUE;
; U7 F: y: P; `! c: z& E8 A9 V6 s}
: H& W  d5 b1 R. d; T6 Z
5 ~# G. U4 [8 [3 i( t( O! \
; m* a6 V: _7 H$ a# \/ x20. 如何获取局域网上计算机名及它们的IP地址
7 F- \9 F% Z. ~  x3 B% w+ d) l" V7 M  \5 J
l 连接ws2_32.lib和 mpr.lib库( f# {1 _! `# i# w. u) W: u) _8 X
3 A: h+ `- x, T
l #include winsock2.h4 l9 @0 `: s/ z

9 c0 A5 U0 z6 c1 g0 E5 n! WCString strTemp;
' t9 m6 I7 ~, D2 [! Z9 L! xstruct hostent *host;/ f$ o/ U  o. X: T

4 R7 `* R4 \# Istruct in_addr *ptr; // 检索IP地址
+ u  n2 u4 Z1 g- cDWORD dwScope = RESOURCE_CONTEXT;( s7 ^% C6 x9 P+ G9 B. p
NETRESOURCE *NetResource = NULL;
1 D+ ?9 O, h: L7 e5 cHANDLE hEnum;
4 I# H1 b2 G! @6 N3 h/ a  [WNetOpenEnum( dwScope, NULL, NULL,
  b$ E3 B% A+ D; W0 R: d          NULL, &hEnum );8 t! Z' y: C9 P1 W

7 ~2 p. M: p. ]WSADATA wsaData;
3 t% m4 t# M: C' IWSAStartup(MAKEWORD(1,1),&wsaData);
5 _7 N, h8 }5 Q$ D) M# s# R7 K9 U& B* j) u; a( t) A& F
if ( hEnum )$ S* z. I0 s8 v% K* B8 q; y
{
& |8 d0 M7 c  d7 U- ^  Q DWORD Count = 0xFFFFFFFF;
8 M" \3 s8 i) l DWORD BufferSize = 2048;, I8 l4 }# ]6 h
LPVOID Buffer = new char[2048];, G* H& ]' G3 o5 N- i; ]- y5 a1 }, l
WNetEnumResource( hEnum, &Count, ) V- ^- }% ^( }# k/ t
      Buffer, &BufferSize );
" E) V1 z6 V* h% y8 M0 _4 A NetResource = (NETRESOURCE*)Buffer;
9 {: Q8 u% U$ }# j1 G: X: |: r* T8 p  M' {- l( P7 M9 e" k
char szHostName[200];
+ T& a4 w2 I; i3 a# I" _9 J/ i; ]5 B unsigned int i;5 K1 o# \& A: {: j# _9 G

/ A9 f$ a: f( t for ( i = 0; 8 B: V: W- E+ B# Z2 Q% U
      i < BufferSize/sizeof(NETRESOURCE);
8 N" a% j0 \- p5 |: O; J$ K: N       i++, NetResource++ )# y5 E/ o6 X# Q
{
, F7 A0 K  K$ {* R" f       if ( NetResource->dwUsage == * o, c- }; V8 V. Q; ?' }
         RESOURCEUSAGE_CONTAINER &&
9 t  U* p# N  P: U) p* Q          NetResource->dwType == & I$ t& f5 M8 b4 e/ H
         RESOURCETYPE_ANY )' l3 D1 c8 c  Z! g3 y$ p9 E. W, O: L
      {
; @+ ^+ x" G4 n5 W/ F6 ~          if ( NetResource->lpRemoteName )+ v8 P% X& N9 n( _
         {
  F! V# W! u  Q) q: U             CString strFullName = . f  i+ m" ]9 W! \5 x% N3 a
                  NetResource->lpRemoteName;: |/ i2 w  @1 L" r& m# u# z3 O
            if ( 0 == / N, {4 H% X  D  V  t. X; c% k7 W
                  strFullName.Left(2).Compare("\\\\") ) ) m; L4 U# d0 m! D
                  strFullName = 2 q0 U- n8 Z2 F! i; q2 U- k! Z$ J
                     strFullName.Right(7 d" P6 Y* ]0 C
                        strFullName.GetLength()-2);5 V; y' l' g5 k+ O: z
+ v2 ^- c  X/ Q
            gethostname( szHostName,
, k1 ]$ x+ _6 U% \2 y. i                   strlen( szHostName ) );
! X6 C! I/ x. P1 u/ X; {             host = gethostbyname(strFullName);
  b$ o8 ^# F6 B3 O8 D% x
1 ~% B1 u; `: n. u% ]             if(host == NULL) continue;
  z$ [  h% u0 b( B. E             ptr = (struct in_addr *)
# p9 N8 Q5 j% V                   host->h_addr_list[0];
! i8 \7 w  E9 U, d0 E- H% ?4 N; J9 S
            // =. 分隔开IP:211.40.35.76.
, F  ~" J$ e9 ]8 |) g) V1 u             int a = ptr->S_un.S_un_b.s_b1;  // 211          , |) Z3 U; ~; G2 $ ?1 w8 P* N
            int b = ptr->S_un.S_un_b.s_b2;  // 40+ L! B* p& _+ @! c; j* K
            int c = ptr->S_un.S_un_b.s_b3;  // 35) _! Z* F, X# r! A6 @1 }/ z
            int d = ptr->S_un.S_un_b.s_b4;  // 76
- W( ^( N1 `3 t8 y/ e) [' k  m! G, [0 v& Y0 S8 X
            strTemp.Format("%s -->  %d.%d.%d.%d",
3 x* v" $ S% C: x8 S; J; W+ h                   strFullName,a,b,c,d);0 X! `" N( l2 A
            AfxMessageBox(strTemp);
# h+ L1 t! O& ^% `8 f          }
/ J3 B. Y9 Z# i, P       }2 N- H- \. J8 K! z. d2 i/ P& Y" S
}
8 g! ~* `" x1 I  N+ E3 Y, f# d! @5 ~# h: \" |1 w6 `
delete Buffer;
1 m% U) R& ~; U; W0 K1 T& U) J" Q WNetCloseEnum( hEnum ); $ d# w" M3 Z3 p* ?. b/ h9 P
}0 h( f4 b: e) D3 {, \" G
+ x! B, G  a# Q/ _! \
WSACleanup();

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