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;
: l/ M+ z& f9 }: e8 S; x  z/ c                   }/ Q; v6 E/ ?( b

2 @" q3 t/ Q0 j                   // 修改位图 DirectBitmap" x" B/ f* N( E6 C# o! ]" p
                  SelectObject(DirectDC,PreviousObject);: ?/ t$ n5 }' b2 Y& H3 y

3 Z% H+ A+ H' b                   // 完成; [1 n. x/ W' g* M
                  RetBmp=DirectBitmap;) t+ i8 v5 G4 q* J
            }
/ ~9 |7 C: z" m/ Y5 t: a             // 释放DC
" @$ s! K2 V! L7 f             DeleteDC(DirectDC);
0 V- _% o. D4 {, k          }; }0 F( t  x, W1 S
         // 释放DC& j. t' T  V  ?( {$ h3 n1 p
         DeleteDC(BufferDC);
9 J6 {( P9 x1 Q7 r1 X. K! G       }1 e7 H& C1 S0 M' P6 c# s
}
6 z% E! O& e: e! O' }6 N return RetBmp;7 s  h1 M! k! O; y) X0 ]6 S4 t& n
}7 V% w6 @( q, {. J% s5 G7 [4 }; Q

- E* c. u  Z4 C0 W
: ?9 A+ |' ^+ k/ T: `用法：
( d$ k# {+ Z* u
) }# p0 [7 f7 @: A  k0 UHBITMAP hBmp2 = LoadBitmap(g_hinstance,MAKEINTRESOURCE(IDB_SAMPLEBITMAP));/ Y5 A! [* ]3 Q
HBITMAP hBmp = ReplaceColor(hBmp2,0xff0000,0x00ff00); // 替换蓝色为绿色; F+ Y7 A* [/ M( W/ s. ?& W
......5 {4 R0 o4 X$ t1 ?% V
7 Z4 b7 x  P: [: h  L( ]4 S; N
DeleteObject(hBmp2);
; N* O' J+ D2 ^9 f' u  mDeleteObject(hBmp);7 D& V& x' m+ B( A$ e
3 U' b, g7 I* i  S3 d& T

& f/ [( _1 f3 o* j# Q! r& i0 Q% a  N19. 如何转换并保存位图5 E& ^4 e$ |2 }- Z% o. f% L; h7 b& N
2 `+ N5 t3 j$ b
//********************************************************************************
& v# }% t0 V8 ?8 D- Y//* 名称：DDBToDIB, H9 B! E- B- L: M$ }7 z0 t
//* 作者：徐景周(jingzhou_xu@163.net)5 F8 d7 w" D. S) r$ G( @9 A
//* 功能：设备相关转换为设备无关位图
3 k8 D+ W% V/ B  b1 Q//********************************************************************************; a5 l, X8 _! J+ N8 e  t1 T
) @& E7 T. M. P. Y3 F+ O( D
HANDLE CScreenSnapDlg::DDBToDIB( CBitmap& bitmap, DWORD dwCompression /* = BI_RGB */)
; v% h6 V5 w9 c  N{1 K' v7 Y" A/ ^5 ?4 T- W
BITMAP             bm;6 e4 a; o9 A& y+ o* z# M7 l
BITMAPINFOHEADER bi;
3 n2 I4 [& R3 v( N  ^ LPBITMAPINFOHEADER  lpbi;4 g( X, |) M# f. ^' {
DWORD             dwLen;
  B$ D% E  O% R4 p( E2 ?9 b5 j HANDLE             hDIB;0 z; q; ]9 c. T0 D, _2 Q- X( O; @
HANDLE             handle;/ [$ s4 n# g. a
HDC                   hDC;
7 o* @8 ?1 s  F: i$ | HPALETTE          hPal;$ }8 c0 t1 j! j. i) S* V4 M+ @$ n3 i

& m9 H0 Q' S0 e9 J- F3 s" l CWindowDC          dc( this );
1 C7 L6 P+ E9 e5 o& b CPalette          pal;
3 a# q9 k% L2 W* }; z //如果支持调色板的话，则建立它# [0 Y( r1 V- p1 p- \
if( dc.GetDeviceCaps( RASTERCAPS ) & RC_PALETTE )
* i1 \1 e# u0 x' r/ g& z {' H( m% u1 j! i8 N
      UINT       nSize = sizeof(LOGPALETTE) + ( sizeof(PALETTEENTRY) * 256 );% N: u/ S' V# r% v
      LOGPALETTE* pLP    = (LOGPALETTE*)new BYTE[nSize];1 V% p$ r& }* G, \  K
      pLP->palVersion    = 0x300;
1 F# d3 Y: I8 M' x- s       pLP->palNumEntries = (unsigned short)GetSystemPaletteEntries( dc, 0, 255, 9 _8 B( Q- V. D8 E6 R# V
      pLP->palPalEntry );, D2 X; _; r2 g) s2 G7 s7 A

" E/ s( m' ~; f6 }       pal.CreatePalette( pLP );
& [" _+ `# H' ?9 n) b5 G: e) M9 o8 J) r3 h' D5 v
      //释放3 J* a* x( g, n* V% f% `; X
      delete[] pLP;. @# z& x/ s: B* A& c8 g3 i; ~+ n
}
! x3 e9 O4 o% K6 ?& L; z+ g5 w3 U
ASSERT( bitmap.GetSafeHandle() );
) |9 U& l( D1 l  m/ T7 U! h* K) a% |8 b4 \+ Q& n

/ r+ Z7 B3 C" R& e //不支持BI_BITFIELDS类型6 O' H) ~8 x- Y7 S: ^! d
if( dwCompression == BI_BITFIELDS )
      return NULL;" ?- W% x, n  a; I+ p0 K% o; \

2 n( w3 f* u" @( R4 C8 K3 | //如果调色板为空，则用默认调色板+ g/ A5 M! N2 ~# S
hPal = (HPALETTE) pal.GetSafeHandle();
$ W* ?6 w: K5 w! O: ]2 l3 I) Z if (hPal==NULL)
- |! n' S+ U* v( y( u! a. s5 r       hPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);
2 `6 [5 ?2 B* d2 V7 F/ ]3 C8 O0 B$ s% z3 B- ~0 ?: q, Z8 M
//获取位图信息8 Y6 w: [3 U  i3 x' P/ b! w
bitmap.GetObject(sizeof(bm),(LPSTR)&bm);
8 t5 N. T# e0 L
: u0 B& `* ]+ h! ^ //初始化位图信息头
5 A( a9 j2 O$ s bi.biSize       = sizeof(BITMAPINFOHEADER);
; @- g4 v  Q$ t: P' o& E/ V% r5 D bi.biWidth       = bm.bmWidth;
3 y0 m4 O. ^' {. w bi.biHeight       = bm.bmHeight;( ]& k/ o( a, ^; N
bi.biPlanes       = 1;
. C  g3 P5 j( X* G; [# e bi.biBitCount       = (unsigned short)(bm.bmPlanes * bm.bmBitsPixel) ;( Y* i' B- z+ p+ l+ ]
bi.biCompression = dwCompression;, p8 R& H, p& r8 \: u
bi.biSizeImage       = 0;
5 j* S; ^4 K# H8 C7 @3 G bi.biXPelsPerMeter = 0;- k  I# {5 B; B
bi.biYPelsPerMeter = 0;
; g$ m2 y: G/ F! U$ b bi.biClrUsed       = 0;. f  Y4 K+ W' ?
bi.biClrImportant = 0;8 `( L* k# {, R( z" v' f

  h; ?4 h# b. F //计算信息头及颜色表大小
& o( e4 s! R9 o int nColors = 0;9 C, W8 y( I! n7 Y2 {
if(bi.biBitCount <= 8)
2 f$ Y. F6 R) H" _9 S6 m       {
! q- p5 b! O: ?& A       nColors = (1 << bi.biBitCount);
; a' L6 x. u3 s& ?9 E& U! b) n       }
. K/ T& z  x, n. U3 E* G+ [' w dwLen  = bi.biSize + nColors * sizeof(RGBQUAD);' F" ^1 p5 D6 v& N4 i; n

& c$ {  J9 L' @; m hDC = ::GetDC(NULL);$ ^5 o) P1 w% V3 H. x1 a* a& l
hPal = SelectPalette(hDC,hPal,FALSE);, o( o2 @9 [# ]1 r
RealizePalette(hDC);
  x& ~4 _7 l+ u) j$ W3 Q
5 d7 y, I/ c% h& d1 F. p" v) J //为信息头及颜色表分配内存
& o4 ^, N2 u& |, ~* X1 O hDIB = GlobalAlloc(GMEM_FIXED,dwLen);+ y' T$ k, _2 Q2 v
if (!hDIB){
# T% _0 u8 @+ s' w% Y       SelectPalette(hDC,hPal,FALSE);
, g1 Y6 k, g. ~# M7 H' @* b" @' l4 r       ::ReleaseDC(NULL,hDC);- k. V2 Q" l) T5 l& b
      return NULL;/ t4 j& v1 F+ d# A3 T( L
}
$ a% w' I0 f, ?
' V9 v; _$ b, @' o4 [, U7 _ lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDIB);3 Y( G! a+ s  A: {* B
*lpbi = bi;
) D& d0 b) c4 N$ F
, o" u" p1 @% J; E2 I9 S3 c //调用 GetDIBits 计算图像大小
$ f9 e- a0 J5 P4 ]& U GetDIBits(hDC, (HBITMAP)bitmap.GetSafeHandle(), 0L, (DWORD)bi.biHeight,
" T/ E+ p1 f& d! s1 s4 \6 R          (LPBYTE)NULL, (LPBITMAPINFO)lpbi, (DWORD)DIB_RGB_COLORS);- w* C) p) ?3 G/ e/ G" T: _' s" J

& ]0 e% l: P: z9 @, F, ?3 { bi = *lpbi;9 P, ~1 Q. o, {4 m3 X& }, d

; p$ G( S' h0 \0 ~2 a' Y //图像的每一行都对齐(32bit)边界% x1 D' o$ C8 T7 X- h
if (bi.biSizeImage == 0){5 _# m& O* Y: a" g# U9 t6 k. _# x0 T$ c
      bi.biSizeImage = ((((bi.biWidth * bi.biBitCount) + 31) & ~31) / 8) 5 h8 s8 Q" j/ @/ r5 S- v/ z6 e
                     * bi.biHeight;
& U6 m5 m/ T4 a$ {" a       if (dwCompression != BI_RGB)
* Y+ v# ~; S3 w( C/ x& P  p          bi.biSizeImage = (bi.biSizeImage * 3) / 2;
, _8 U  E+ i1 L1 `# ]( c$ @" ]- v& S }
1 n* s9 L' b" m, ? //重新分配内存大小，以便放下所有数据
6 M7 d. X, E; I$ M% y' [8 U3 ? dwLen += bi.biSizeImage;
& b# U" p+ K& L( f, [6 f: x) h! G handle = GlobalReAlloc(hDIB, dwLen, GMEM_MOVEABLE) ;
2 s& H+ w* k% y) q0 K4 s if (handle != NULL)
5 O  T) x6 p" W2 r: i, }( ?       hDIB = handle;
  g& t% t; u# p+ f/ Q else4 o& J* G; s5 J0 g3 R3 g. ~
      {- i$ h$ E# M) X5 C) s0 ?& V
      GlobalFree(hDIB);
# k* L+ x5 Y. G3 R4 r: u4 G! v) L7 g, S/ }: D# k. ^
      //重选原始调色板
' h& A- K! `  e4 H0 e% X       SelectPalette(hDC,hPal,FALSE);3 E4 ?, c+ f9 @0 p3 Y
      ::ReleaseDC(NULL,hDC);
; G/ L9 I6 l7 @+ Y( m       return NULL;
4 b" X  ~. N( u0 U3 `6 b( C, Y       }1 g" [8 w7 C" z, h
//获取位图数据
/ }, b9 D+ d: s# {1 F) F lpbi = (LPBITMAPINFOHEADER)hDIB;2 h$ U) @; k" }1 k# A
//最终获得的DIB% D$ ~$ q6 A  s$ ^* c6 s
BOOL bGotBits = GetDIBits( hDC, (HBITMAP)bitmap.GetSafeHandle(),0 d- Q. ^' O, x5 y6 y' V) I
            0L,                   //扫描行起始处
3 s5 y$ O6 x) C; R             (DWORD)bi.biHeight,    //扫描行数& x1 W4 K+ P  H
            (LPBYTE)lpbi          //位图数据地址( K7 s! {* [7 h  t% l; d5 V& b
            + (bi.biSize + nColors * sizeof(RGBQUAD)),4 P5 J: V/ s8 j+ L/ ?! f
            (LPBITMAPINFO)lpbi,    //位图信息地址( q9 Z9 n: u/ i3 i  M  Y8 u3 Q! Z
            (DWORD)DIB_RGB_COLORS);  //颜色板使用RGB' @: ]3 M( L* `& y2 x. p
if( !bGotBits )! w! S- S7 h$ N( p6 n# z* n
{
: J3 ]" `( \# [/ b7 M! V+ r       GlobalFree(hDIB);& d2 @0 ]8 v- X1 U* m
      SelectPalette(hDC,hPal,FALSE);4 k7 j1 t+ C- E& N
      ::ReleaseDC(NULL,hDC);- d- c3 {9 A3 ]- B+ L
      return NULL;, k+ j' H) o2 v! i3 I
}
2 ^) \$ G& q9 J2 ^0 H* P SelectPalette(hDC,hPal,FALSE);
7 Q8 _0 q1 T, X2 W* C ::ReleaseDC(NULL,hDC);7 p- I; x! G0 h( Y& f/ c
return hDIB;
; J- n0 t. w0 G" K8 S* s4 R}$ o+ a1 d" T5 @! p0 v
4 H) K8 i; r  H4 u7 N

# \8 w) p" v; [; N//********************************************************************************
2 g- y/ q0 d- K4 O0 e/ Z5 n//* 名称：SaveBitmapToFile# J; @3 ]+ c6 {5 T& K# q3 R2 i
//* 修改：徐景周(jingzhou_xu@163.net)( O; a8 x( T& O% P' b
//* 功能：保存为位图文件1 B; y6 y! N0 A, x' O+ a
//********************************************************************************
8 s/ ~5 {! V; y  S% s, k: EBOOL CScreenSnapDlg::SaveBitmapToFile(HBITMAP hBitmap , CString lpFileName)
8 Q* E. z& n6 x9 w{/ L+ F4 ?+ w3 ^# Y& Q
HDC             hDC;                         //设备描述表  ; d/ ?: K* {7 U
int             iBits;                         //当前显示分辨率下每个像素所占字节数1 V/ U4 N2 G  F) Y; i$ v" W
WORD          wBitCount;                      //位图中每个像素所占字节数; w2 ^0 H4 N8 n$ [6 b
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
' r5 L- _3 }& i* `+ c9 h) g9 c' t; J                   dwBmBitsSize,& O+ O  r% L9 \0 P' L5 \: W
                  dwDIBSize, dwWritten;8 P4 e% I, _' v; V$ v+ @5 w
BITMAP       Bitmap;
! _5 c1 m; w1 p6 M3 @ BITMAPFILEHEADER bmfHdr;                      //位图属性结构 9 T( U1 P+ n0 C: ~7 @  I7 r
BITMAPINFOHEADER bi;                         //位图文件头结构    8 u' ~2 T+ M2 ~/ {9 \8 e- S* C
LPBITMAPINFOHEADER lpbi;                      //位图信息头结构    & [4 ~7 R; f6 B8 A% c! T

& q! v# }1 f6 k8 A# H* V 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
' f* W) O/ @5 p5 t* O- L. r+ q! ]1 S$ ?  J
6 I" z* A8 @1 p; M0 U" h6 z
//计算位图文件每个像素所占字节数* l& K' a! y* |$ l
hDC = CreateDC("DISPLAY",NULL,NULL,NULL);2 u4 U7 }- L! E3 ~: T
iBits = GetDeviceCaps(hDC, BITSPIXEL) *
' U0 S8 a6 F; L( T. {) t GetDeviceCaps(hDC, PLANES);% Z/ z" ?4 u# y" P' d0 b: y
DeleteDC(hDC);. v8 w4 q, L9 ]+ Q& U& c( j7 e, c
if (iBits <= 1)4 B  g/ z4 t: y/ o; \9 l
   wBitCount = 1;# [  v* a$ {' `# \6 a+ l
else if (iBits <= 4)
: |" `  x) {- ~    wBitCount = 4;
: I" l7 X: g' O; K6 H( \5 b7 ? else if (iBits <= 8)" S, k9 ]: Y, v. q9 T
   wBitCount = 8;  Q  R  |( c9 i" ?
else if (iBits <= 24)
8 ]4 r0 x) a: n# R/ S    wBitCount = 24;
, }. g6 M# S7 x! B7 V
3 |6 W9 m& t1 P0 h" o/ C5 R0 a/ Z //计算调色板大小
9 `1 e. |: H+ q# }" ]* m3 Q2 d if (wBitCount <= 8)
$ F% C9 X) D# k, l' `$ o$ }    dwPaletteSize = (1 << wBitCount) *sizeof(RGBQUAD);: T$ N2 x( }5 f, v( ?6 P
& \" r2 D+ a! ^0 n5 b" M" P5 N; ^
//设置位图信息头结构8 u$ }: [; Q9 p% D, J
GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&Bitmap);# p% N: j& \7 p
bi.biSize          = sizeof(BITMAPINFOHEADER);$ g& V" _- q. ]! V7 L
bi.biWidth          = Bitmap.bmWidth;
3 U8 `% ~: h( b& |0 c+ y bi.biHeight       = Bitmap.bmHeight;
; ~3 Z$ m  Z  d6 R& c8 {7 e% P bi.biPlanes       = 1;
# |! ]  U, e% H bi.biBitCount       = wBitCount;; y% o0 }9 U( X% R7 z
bi.biCompression    = BI_RGB;
$ h) W* w4 Y' R3 a4 F7 g% | bi.biSizeImage       = 0;0 r8 |8 L0 e# w, X7 i% s
bi.biXPelsPerMeter    = 0;
0 N) k3 Q! B! c bi.biYPelsPerMeter    = 0;
& }% O. z- w* N" p9 T* F bi.biClrUsed       = 0;- e0 y% j' {. G6 u* C5 X
bi.biClrImportant    = 0;+ l8 W, Q3 [& |+ [5 _! K
dwBmBitsSize = ((Bitmap.bmWidth *7 w* e2 \3 q( P+ ?# j
wBitCount+31)/32)* 4
. P! v' L3 z- p0 W$ M; T$ E    *Bitmap.bmHeight ;
$ _7 w/ w: k4 M' X4 ?  L' v7 k7 c1 F. n% g1 n3 x
//为位图内容分配内存4 Z2 c' _" W' r: O& W2 Y9 x
hDib  = GlobalAlloc(GHND,dwBmBitsSize+* V: ]' H- Y2 U
dwPaletteSize+sizeof(BITMAPINFOHEADER));
1 ~3 S" _' @7 J: } lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);
% y: B8 i1 E4 y, [) F$ F+ G0 B *lpbi = bi;
: @4 R( c" {6 Q% Q& ?$ ~
" D6 E+ W2 w; h. z/ Y // 处理调色板
7 C' G& ]9 @4 ~1 s) d2 S hPal = GetStockObject(DEFAULT_PALETTE);" H, w1 w5 ~# A# b) _+ s
if (hPal)8 a" `: y. B! V3 t
{$ x! f$ ^3 z2 E4 S0 K  i
   hDC  = ::GetDC(NULL);" j8 {% h" ?4 w& q9 F1 Y8 n
   hOldPal = SelectPalette(hDC, (HPALETTE)hPal, FALSE);# H* }; |8 s( n( y
   RealizePalette(hDC);# ~$ B8 Y1 Y5 @
}
& A& ^4 B8 _+ ~! ~% o$ t2 |1 F9 S6 }. m/ r3 a) y  A3 s3 m$ P
  // 获取该调色板下新的像素值! Q( z. C, \8 \7 l& j: V
GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight,* b8 O5 v3 M. t+ G
   (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)+dwPaletteSize,4 r2 H) ~1 [; E4 u3 v6 o
   (LPBITMAPINFO)lpbi, DIB_RGB_COLORS);
: z4 V0 o- u7 o2 \5 Z2 h/ M6 @" @2 M5 V% z" Z- F) w
  //恢复调色板
; K% P' ?; V: P* S+ ] if (hOldPal)" J* l0 Y" L6 C/ I0 M3 [) X$ ?
{
0 n3 L- _- i6 w! o% @1 ~    SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);
# d* e% D6 {# [! G1 V3 m8 f/ L    RealizePalette(hDC);
" w! e) ?  I' \' r) S( n+ ^    ::ReleaseDC(NULL, hDC);4 T& {; n# U) G
}$ u% P4 s0 \0 i# }

7 \) \& _* M2 V" s //创建位图文件
9 T- T* u% ?# e  S0 I9 R; x& t fh = CreateFile(lpFileName, GENERIC_WRITE, 8 w0 |( \6 n2 ^! T5 u9 }2 b$ F
      0, NULL, CREATE_ALWAYS,: w1 M! N; K. w- F! @; A2 X3 z
      FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
+ a4 [! ^& Y. ]+ `4 C; ^ if (fh == INVALID_HANDLE_VALUE)3 H# d7 m  j+ T2 n( K- G
   return FALSE;1 i" v/ \" W$ j  P/ n
- O9 ~- h; T5 ]) p+ u
// 设置位图文件头
& s$ K( ?' t: D" m7 l- a! i  D+ F bmfHdr.bfType = 0x4D42;  // "BM"
; K7 e( a: ~; ~% N; ^ dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;
; T6 |3 v$ J) t0 a) A& k bmfHdr.bfSize = dwDIBSize;
; F/ D2 R. l) l bmfHdr.bfReserved1 = 0;
. V9 e8 D) b) h2 n bmfHdr.bfReserved2 = 0;
& X, T' \8 @0 ?# l bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER) * E% h# P! W' P1 a! O
   + (DWORD)sizeof(BITMAPINFOHEADER)
% ]% |" U7 ^; h5 u) m    + dwPaletteSize;, K3 H: Z) U/ l

) l, G7 O3 T$ a6 T+ C* Q: W0 P( ~+ N! V4 E
// 写入位图文件头
4 O- O( [. T& H9 H WriteFile(fh, (LPSTR)&bmfHdr, sizeof1 V3 A& s" ~5 ]! i9 i
(BITMAPFILEHEADER), &dwWritten, NULL);
8 R; i& N! O3 ^& P$ i0 R* k4 R8 L3 U# y+ u
// 写入位图文件其余内容! T. O6 \7 ?$ @
WriteFile(fh, (LPSTR)lpbi, dwDIBSize,
0 ]0 J  }& U, W- n; { &dwWritten, NULL);& M$ w( ^4 }7 ]' @" u0 G/ y0 t
" B, L4 P0 P% s* U  |1 C1 I
//消除内存分配
3 }4 J" f2 w/ z  i0 N! r GlobalUnlock(hDib);( a! }$ y# r2 C) A* |! v$ T9 o, F
GlobalFree(hDib);
2 i+ R6 @7 t+ S: Z* T' ]3 B, k0 q CloseHandle(fh);, i$ z# A, |; t0 {! A/ A

% A- `/ Z# H; z+ C+ O return TRUE;8 K5 z, g/ K$ |4 ~
}& W0 T4 C' k) Z; K8 `" I

5 W' `% I# s: {4 n: u) T5 ^! k/ S+ ~( [. [1 s
20. 如何获取局域网上计算机名及它们的IP地址' F! A4 s/ k: ^. C6 A5 M7 |
5 k( K# \4 r' U/ _, p; v% f3 Y
l 连接ws2_32.lib和 mpr.lib库
! s, n" r5 e7 D. g/ @0 Z3 J! P; d3 x- P) W  Q- E9 E
l #include winsock2.h( h0 {3 V  |- o2 c% H$ V, p& i& e
4 R3 x- v* E' }6 Q9 M  d/ y
CString strTemp;
, L0 h( p. t4 V( j, l$ {" xstruct hostent *host;& e6 \' q" i5 i9 Y$ Q- o
2 {2 f# o% F7 h% S, S5 V
struct in_addr *ptr; // 检索IP地址 0 L5 j  B* p, n. @
DWORD dwScope = RESOURCE_CONTEXT;/ X; w9 y6 b5 S( Y$ k* Q
NETRESOURCE *NetResource = NULL;& ~+ F: t) K* j. V  L3 v7 M
HANDLE hEnum;
3 s% ]! A$ ^$ IWNetOpenEnum( dwScope, NULL, NULL, # l5 Y( i" T" b8 p* @
         NULL, &hEnum );
1 A# a# h- z. J* ~# r. U9 A/ I0 B3 u' X9 d1 `+ R
WSADATA wsaData;
' L) k3 |& j$ a/ GWSAStartup(MAKEWORD(1,1),&wsaData);
4 I; A' g( f! J( A& H4 s, M% |. W' W% Q" l# X8 f
if ( hEnum )! g. M: d  G) v0 S4 c
{
) f1 g' s6 h6 Y8 o DWORD Count = 0xFFFFFFFF;+ f# K0 ?: V; f) X
DWORD BufferSize = 2048;
! r: `" f) f! h( U5 U  L  e LPVOID Buffer = new char[2048];
8 c8 T* h" V; ] WNetEnumResource( hEnum, &Count,
8 a; @. y) P6 k" o$ x! i       Buffer, &BufferSize );
, |0 {9 x/ }/ S- S+ ? NetResource = (NETRESOURCE*)Buffer;
; J( P' p& p3 _; c7 z" ~7 A' R8 A! S% f* O6 C* M# v3 k. `5 S; f8 G
char szHostName[200];
! s! S0 S( T8 c unsigned int i;
2 J" {" R+ i0 S! j8 J6 w$ Z4 I& F2 v  W* V* \! x
for ( i = 0; + `+ k5 I4 K+ r# L) k) r1 P/ ^
      i < BufferSize/sizeof(NETRESOURCE); 9 j. a' w+ {2 L
      i++, NetResource++ )+ r: V8 \9 q1 j8 I4 ^$ z3 M
{
4 P/ r' {/ R- Z+ s       if ( NetResource->dwUsage == ! w- e; d3 t- I5 T1 p
         RESOURCEUSAGE_CONTAINER &&
$ j! b3 p5 u; i4 |          NetResource->dwType == $ q, i% H* f1 g6 j
         RESOURCETYPE_ANY )
1 f6 n1 y; |, @       {
. I4 n; ?9 \% P" [7 ?/ B          if ( NetResource->lpRemoteName )0 d) a* V- J* v% t3 E; s, o
         {
# I& s: m9 ?' w* f7 v5 D4 ~8 `6 }             CString strFullName = 1 c( ?: e- ~- K8 O8 @: A9 P
                  NetResource->lpRemoteName;
7 ?/ @8 a4 A3 A4 ]) Z2 S- W             if ( 0 == 0 T( h! W! S4 ^- w
                  strFullName.Left(2).Compare("\\\\") )
/ U- ]3 @. q, i1 [: c                   strFullName =
  `6 l! |5 N- M5 ?                      strFullName.Right(
) G2 a4 I  E) }' i( Y                         strFullName.GetLength()-2);$ D# H" q+ n2 W: l- c- e" s  ?

3 t+ k7 Y( u  |0 N8 v& a' T             gethostname( szHostName, - Q/ {. i; k( X  ^5 h8 T) x/ M
                  strlen( szHostName ) );0 O0 v4 E+ o. n  c. N5 v
            host = gethostbyname(strFullName);
0 b" Z+ G4 ?9 B8 s7 `( L. {8 n. E
, g7 j4 Q! {8 y! q1 K             if(host == NULL) continue; " T1 @& L  ~! [! O3 C* ?
            ptr = (struct in_addr *)
" a- q) u( }7 ^  e5 ]( Y+ I6 `                   host->h_addr_list[0];
* N( a5 K; _6 y9 ^3 n  ?2 O+ u8 l' ?3 V" K
            // =. 分隔开IP:211.40.35.76.
( s/ }# t; M3 I: l# d7 s: r. b  f             int a = ptr->S_un.S_un_b.s_b1;  // 211
* }$ \5 S# q) ?; L3 K             int b = ptr->S_un.S_un_b.s_b2;  // 40
" P: L! ^1 c4 N4 o3 j. F7 n2 ~             int c = ptr->S_un.S_un_b.s_b3;  // 35
. \! s3 N8 w* v  s% p  w             int d = ptr->S_un.S_un_b.s_b4;  // 76; |1 i; C+ \% L4 x: K' `' x

* u, B9 \5 p; ]4 Z& d3 J             strTemp.Format("%s -->  %d.%d.%d.%d",4 b4 y' Y" s4 S9 q0 ^
                  strFullName,a,b,c,d);
0 k4 H" S1 [) D; G/ {+ S# C             AfxMessageBox(strTemp);0 Z7 W' b7 F2 @7 {' A9 u
         }/ g' v( v* P" |! a
      }
! L3 e0 g, d4 N4 z4 M7 p }
. X3 R, @2 {4 c- I& l% w( g" ?( w, k9 H9 v
delete Buffer;* _( x; E/ M5 r6 h0 Z# Z
WNetCloseEnum( hEnum ); ( O8 [8 Z9 K  Q
}' Q8 r& R( E# F5 y

& ?4 t3 D; T0 A- \% O* O' FWSACleanup();

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