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;: q- e/ ^: n8 F0 u' M
                  }% D. q6 a, |( `* y8 Z
               # U9 g" z+ h# [$ K+ a
                  // 修改位图 DirectBitmap% F6 P0 W  N- L  v. T
                  SelectObject(DirectDC,PreviousObject);$ Y) d. x. e$ V! G4 T' V$ n
                  8 z* f( L* g1 t) p
                  // 完成
6 v+ Q" N; [, _# I; m9 Q& W                   RetBmp=DirectBitmap;  V* }$ w% F5 F) C( k" w9 J
            }) p, ~' V8 u0 w) `8 Q6 B3 e
            // 释放DC
' L, k9 B9 ?' f9 z+ i& j             DeleteDC(DirectDC);
0 C! ~% g6 ]2 w, R) q8 V9 ^          }
0 P5 n3 N3 D8 ]' B& d, N          // 释放DC3 s; X0 O0 q* S
         DeleteDC(BufferDC);
' P4 I/ P+ v  T' e+ d4 [8 _/ K       }0 p$ g+ T- D6 l
}! v* ^, j: ~) b3 `8 c
return RetBmp;
; S- O* Q" c6 h7 E}+ u8 W( l) k: V: w

2 Z7 ?  L& ?" f
/ E# Q- ]' c6 {0 }6 t用法：
, O7 O0 s- s9 z
# D/ M  B5 z: }+ N' R7 F8 CHBITMAP hBmp2 = LoadBitmap(g_hinstance,MAKEINTRESOURCE(IDB_SAMPLEBITMAP));; L! q: v7 [3 b
HBITMAP hBmp = ReplaceColor(hBmp2,0xff0000,0x00ff00); // 替换蓝色为绿色: E) {' Z$ \+ y' \& o- m# v
......4 X5 t2 C; ^2 M9 i1 t# R: w1 ^

! Z3 @+ A  K' E3 R& QDeleteObject(hBmp2);
7 A* T; H3 b$ K' o4 tDeleteObject(hBmp);
" U5 y# ^8 ^& t1 n3 Y7 N- {! D1 [* t

& q3 ]# g4 ?: O3 X& P& _19. 如何转换并保存位图, z* P5 _+ C! M" V- [& N# N
% ?' J4 k8 x( `& f1 `; _9 K* W3 L& X
//********************************************************************************
% K8 S- t% F* E//* 名称：DDBToDIB( y2 O: i4 A4 c7 ]2 e
//* 作者：徐景周(jingzhou_xu@163.net)
# k  ^3 J+ N7 s7 ^( A( q. H; K//* 功能：设备相关转换为设备无关位图
6 j) C* M  a/ g  s/ G//********************************************************************************
! t( @6 ^+ H# V$ n4 ?% m' h" F- }) R- v; o$ ?' B' d: I8 E7 p* r
HANDLE CScreenSnapDlg::DDBToDIB( CBitmap& bitmap, DWORD dwCompression /* = BI_RGB */) 9 }$ H  j/ ]5 u  y* \+ Y
{. M& K$ h8 G" A
BITMAP             bm;
! U6 b# d+ M* f0 a9 @1 D8 u BITMAPINFOHEADER bi;
, G! ^4 ~/ K0 ]. c* z LPBITMAPINFOHEADER  lpbi;
, p1 q1 J/ O  w- n: K2 \" E, @ DWORD             dwLen;7 C8 Q, Q; t3 V# G
HANDLE             hDIB;
8 Q7 F5 q6 H1 \/ g HANDLE             handle;
: w# F" {2 k# C( f" ? HDC                   hDC;
# |+ h8 ~% m" S: b4 C HPALETTE          hPal;9 P; H9 ~; x* J; t5 a  b  R# Z/ J
! m5 }2 f3 `5 |
CWindowDC          dc( this );
, B3 {7 O/ r3 C$ G2 ~0 F+ U. @+ B CPalette          pal;
% {# y- h- ?) I5 h$ ] //如果支持调色板的话，则建立它1 R! g# v; _( P
if( dc.GetDeviceCaps( RASTERCAPS ) & RC_PALETTE )
- B& L5 `/ M' h( |4 u! C6 ~$ T {1 c* J* D7 M6 o8 f: y" E% z$ d, Z
      UINT       nSize = sizeof(LOGPALETTE) + ( sizeof(PALETTEENTRY) * 256 );
0 w. Z2 c/ o9 V5 T! ?* s       LOGPALETTE* pLP    = (LOGPALETTE*)new BYTE[nSize];
' x2 O4 N1 \! R, ~8 s% K  _       pLP->palVersion    = 0x300;% H1 _" y, d; s" ?; @2 k
      pLP->palNumEntries = (unsigned short)GetSystemPaletteEntries( dc, 0, 255, " a" U% E9 m8 g4 p7 o3 v; ]  O
      pLP->palPalEntry );; ]2 K7 f2 l+ w/ F- F

5 O; E+ E4 r7 e0 \7 e8 B1 ]       pal.CreatePalette( pLP );9 d8 m* Y7 O9 [' y6 D- {2 K

3 }7 \" z" T) Y& k       //释放
. J4 L1 Q8 O& N  O9 ?* {       delete[] pLP;
/ Y: f! w0 m6 l+ n1 K/ b }
# k) r$ }$ F& ]3 }2 p5 k6 `: r2 V% ~" s
ASSERT( bitmap.GetSafeHandle() );0 J' V  y" F* `" C+ n

% W0 p& ]$ F. Q# h' \
6 F8 V, @: k, A8 h* s //不支持BI_BITFIELDS类型; o% v3 U# L! G: ?% N/ x; e3 S
if( dwCompression == BI_BITFIELDS )
& s- f/ J3 ~2 |, c1 m, G! q: W0 {       return NULL;
2 b# o- |/ ?1 ~3 l4 d* y1 D0 p4 b1 G( r+ d- U
//如果调色板为空，则用默认调色板5 L' ^7 k1 p! g" S
hPal = (HPALETTE) pal.GetSafeHandle();
" ?3 I9 o4 G9 e& k# s. a if (hPal==NULL)
7 x4 e& o' K2 V( a& C- ~& [6 `       hPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);
- ?/ }( a8 P5 ]1 G. K; Y) \, \# U5 [; v; h7 a- }1 [
//获取位图信息
8 G4 A0 e' x8 B* T bitmap.GetObject(sizeof(bm),(LPSTR)&bm);
. A6 U+ x% b0 a. J0 n' C, ^
, `% i- [0 ~2 P2 E+ K/ a% a' S //初始化位图信息头; ?( j0 ]2 K% o5 X+ ]0 x1 W
bi.biSize       = sizeof(BITMAPINFOHEADER);
0 u! `1 X4 j1 [  i bi.biWidth       = bm.bmWidth;
8 O6 v7 V; q! ^* e- d bi.biHeight       = bm.bmHeight;
/ @/ J7 U9 \' N bi.biPlanes       = 1;
: l/ C- u: i% k1 }0 |4 _ bi.biBitCount       = (unsigned short)(bm.bmPlanes * bm.bmBitsPixel) ;
+ f/ |# a; }' z0 P) i; m2 o5 h8 Y bi.biCompression = dwCompression;7 Z5 q2 \6 e9 ~/ Q6 u
bi.biSizeImage       = 0;
* T6 G! c& y# A6 [* d$ z bi.biXPelsPerMeter = 0;! ]: _! g6 \+ Q9 B: s
bi.biYPelsPerMeter = 0;
- X$ o% R- G& U* L" E bi.biClrUsed       = 0;2 R9 U2 @! m  g. y; ^' d
bi.biClrImportant = 0;4 h8 ~! Q% e- p
2 ^% ?- S; ?4 N% g2 `
//计算信息头及颜色表大小- ?+ ]0 ]9 u- ]4 ]. f% }; m; G
int nColors = 0;5 k' @7 {; m0 d# d* g
if(bi.biBitCount <= 8)( S- r" H0 ~! G* \& Q/ p) @1 K
      {
+ b/ d( {# A' l, }8 I, D4 j; P       nColors = (1 << bi.biBitCount);
) T: n, {* k& r8 w8 i' F       }
5 r" w% \. u9 Z8 b7 d4 S/ ?" b dwLen  = bi.biSize + nColors * sizeof(RGBQUAD);* v4 B) z0 b5 T" ?% x: L
8 b* e; P+ T3 B2 r7 ?: O* }3 C
hDC = ::GetDC(NULL);* F: C# h" P3 O6 X) A
hPal = SelectPalette(hDC,hPal,FALSE);8 M9 }) t3 c4 T, y& F
RealizePalette(hDC);1 `0 i7 a6 a" S3 i3 ~
+ t0 N  d' p# J7 i' r5 f3 e& Q5 X5 w
//为信息头及颜色表分配内存. Y8 s( n; _' u! z- b
hDIB = GlobalAlloc(GMEM_FIXED,dwLen);
) w6 [7 u6 U8 T. k if (!hDIB){
$ |  f) d- o; S- _       SelectPalette(hDC,hPal,FALSE);# B' Y6 A2 E' L1 [* |
      ::ReleaseDC(NULL,hDC);9 M  _3 y7 S, m9 [+ N
      return NULL;: D4 O1 n1 Z% I  i2 M
}& R1 h/ A5 q0 ~& v6 Q+ Y- O: O+ \

# j) ^" k/ Y/ o1 S, H; B lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDIB);( p8 k' j1 U, k9 O% F
*lpbi = bi;! G" Y9 P8 ^5 u# E/ f

" I  y% D" x1 @  B //调用 GetDIBits 计算图像大小' i3 W5 j9 X: L1 ^
GetDIBits(hDC, (HBITMAP)bitmap.GetSafeHandle(), 0L, (DWORD)bi.biHeight,- i2 Q. C2 e) R4 O
         (LPBYTE)NULL, (LPBITMAPINFO)lpbi, (DWORD)DIB_RGB_COLORS);
! i3 ]6 Z) E7 J% j! ?# s! v/ R
7 ?% @5 N; A% }/ h4 ]0 W$ M bi = *lpbi;: J( m) A+ s. G. M) L2 P
0 U7 d# q$ ?4 T  j5 d  A5 {$ j
//图像的每一行都对齐(32bit)边界1 D# r/ G  @. w( X/ a
if (bi.biSizeImage == 0){
3 }+ V  v# B5 e" {# T, S( }# h! B       bi.biSizeImage = ((((bi.biWidth * bi.biBitCount) + 31) & ~31) / 8)
7 Q+ p% l) a. y- j- K                      * bi.biHeight;
' [+ ^* p' i+ E! l       if (dwCompression != BI_RGB)
" V  r, k) g1 l" i; @3 Q+ u$ v- s          bi.biSizeImage = (bi.biSizeImage * 3) / 2;; _- j6 T7 ]2 X, f' n3 H- V- K
}
) Q5 m$ }5 E- ] //重新分配内存大小，以便放下所有数据* h- a( V! H* O3 \+ p7 _! X
dwLen += bi.biSizeImage;# O& p* N: @/ E
handle = GlobalReAlloc(hDIB, dwLen, GMEM_MOVEABLE) ;
  G+ H1 o* r) }# h% \, M! \ if (handle != NULL)# |# D6 {. G4 ]+ m+ a9 ~
      hDIB = handle;8 _  y* u. N( X; b- t& \
else
) J: b9 O7 h( ~  e9 m2 z       {) Z* n) S2 H8 M* M! f  V$ n
      GlobalFree(hDIB);3 E5 x3 V6 D( {3 p8 q9 U9 O: a" j" C

- i9 ~. t$ J& R% a( q  `* P       //重选原始调色板
- ~8 I" O3 |8 ]9 Z2 }       SelectPalette(hDC,hPal,FALSE);6 K' e0 o. p: \& j( W- I4 l1 p
      ::ReleaseDC(NULL,hDC);) ?9 y" B# [7 e4 a
      return NULL;
1 i1 i% @' f. H. F5 O" a+ U; s4 V       }5 N' _1 C) q. j) o  s$ r
//获取位图数据& @$ c$ y  |  |) D
lpbi = (LPBITMAPINFOHEADER)hDIB;( v. S' u3 B4 [/ t4 [
//最终获得的DIB2 K8 M, z- q# {- l
BOOL bGotBits = GetDIBits( hDC, (HBITMAP)bitmap.GetSafeHandle(),
! a! b5 [6 N4 v. b9 X' x8 c             0L,                   //扫描行起始处  `/ R+ d# `' S- f3 X  L
            (DWORD)bi.biHeight,    //扫描行数. i8 u0 V+ @/ {8 c
            (LPBYTE)lpbi          //位图数据地址" P. r: u& a" Y+ v3 N
            + (bi.biSize + nColors * sizeof(RGBQUAD)),
- z6 p4 a/ a8 B             (LPBITMAPINFO)lpbi,    //位图信息地址
  G" n; H8 T' S             (DWORD)DIB_RGB_COLORS);  //颜色板使用RGB/ z& [; L' q( a
if( !bGotBits )2 @( j% E, h5 o3 v+ j% N: S% g. n
{
2 X2 ~6 M' k, X8 S       GlobalFree(hDIB);
7 i; I1 w1 q! N* p! \' }       SelectPalette(hDC,hPal,FALSE);
( ^+ ]- y3 B) p- U  I) L+ k" \       ::ReleaseDC(NULL,hDC);
2 j% n1 ^, r- O       return NULL;1 ?2 e6 L) ^  l
}
0 Z9 t7 e9 \# I0 } SelectPalette(hDC,hPal,FALSE);3 C! p* v: B5 o( Z7 N. ]8 Y8 _
::ReleaseDC(NULL,hDC);
" E3 r; g: B, K( K8 g2 q7 l return hDIB;
, P: O2 x- V8 D# e}3 u/ y2 {% R6 _* d' w
! y  l* r5 l- K! B" k) {6 }
- t( ]- O* `" I  W( Z
//********************************************************************************
; i8 d6 ^; s, f1 J) U3 D6 Z* Z//* 名称：SaveBitmapToFile
6 |" A( Z. D) @* ^$ u5 P( ~//* 修改：徐景周(jingzhou_xu@163.net)
" `, P. d& h/ F5 P( X: h" C//* 功能：保存为位图文件
( b$ q, ]% [: c$ m% x//********************************************************************************
& Q8 p7 n$ K  \7 U* i% C! I0 VBOOL CScreenSnapDlg::SaveBitmapToFile(HBITMAP hBitmap , CString lpFileName) $ }7 y1 y- k  C9 u
{; a# G( V$ X1 }# U( H; k
HDC             hDC;                         //设备描述表  $ o; K0 Q. J9 p: ^: O# z
int             iBits;                         //当前显示分辨率下每个像素所占字节数- q. ?+ C( e# Q& w6 x' D
WORD          wBitCount;                      //位图中每个像素所占字节数& s9 C7 }; B7 N+ x$ z, U9 c2 j& R
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
' C9 g/ V5 B! h/ Y                   dwBmBitsSize,
$ u6 \6 [- N, x                   dwDIBSize, dwWritten;
1 [, s% E1 A+ }1 Y$ L! k0 G. h7 k, s BITMAP       Bitmap;       : [! [! o% p+ z
BITMAPFILEHEADER bmfHdr;                      //位图属性结构
$ v: [: A) z+ d  @ BITMAPINFOHEADER bi;                         //位图文件头结构    * `3 h2 }0 Z8 X7 @, Q1 A  b& ^
LPBITMAPINFOHEADER lpbi;                      //位图信息头结构    7 k! s# n4 U# Z% [  e
+ N3 x+ k7 u2 i7 l2 Y0 T' K1 ?
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- b* X, {; D" l! \" m2 Z% X+ v

, b$ _+ j1 b( ~1 Y/ d
//计算位图文件每个像素所占字节数/ a- N3 b! w; M/ n* `1 A  _
hDC = CreateDC("DISPLAY",NULL,NULL,NULL);
* W$ h' v" ]3 a3 [" K% l3 M- ^5 I iBits = GetDeviceCaps(hDC, BITSPIXEL) *
0 ]9 Q( W6 `% P2 ]- T& H* k GetDeviceCaps(hDC, PLANES);
2 E6 y: M' _1 S5 H7 e  c DeleteDC(hDC);- o1 S8 m! P) ?# S( b
if (iBits <= 1)1 V( i( L2 _* Q* r3 ]/ r& h, B( i
   wBitCount = 1;
' A! x& C$ U9 }* o3 v else if (iBits <= 4)
/ n! d' y1 i  G) s    wBitCount = 4;3 V/ u4 E' g7 J) [- q2 R& X" U+ G1 s" g
else if (iBits <= 8)
: B) p. W- G+ i3 x: v) N    wBitCount = 8;) H: z& b& z. z3 @
else if (iBits <= 24)
# w6 v. N0 A/ A. T    wBitCount = 24;
* n, b" a8 m8 x6 C) l' U  ]5 D; z  X$ Y' b7 D
//计算调色板大小
; r! ]* o/ N; s% _: L if (wBitCount <= 8)5 w* a6 {' j! v9 i- r; H3 i0 `
   dwPaletteSize = (1 << wBitCount) *sizeof(RGBQUAD);7 Z* D- ]: J4 K
& o# b+ ?0 b1 F& [3 j0 Z
//设置位图信息头结构9 E. `" f1 S% B) z! h) J2 v
GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&Bitmap);
8 W$ w4 b7 P. W' ]3 s0 X3 r8 q bi.biSize          = sizeof(BITMAPINFOHEADER);$ U& N! t2 V4 Z& Y  M
bi.biWidth          = Bitmap.bmWidth;
/ s2 S4 v( r3 x# b$ y bi.biHeight       = Bitmap.bmHeight;
% ~4 B, R& \9 _9 I bi.biPlanes       = 1;
$ H0 ^0 ^/ d, k4 t3 C6 l' _: i0 W! E; v bi.biBitCount       = wBitCount;
! D* R& R. I: h; R. d3 N; w( s; R bi.biCompression    = BI_RGB;
, U' ?7 K. k0 O* x8 Q bi.biSizeImage       = 0;% D8 E. v+ q+ |5 R' p7 R
bi.biXPelsPerMeter    = 0;
+ E1 O% T# X% q bi.biYPelsPerMeter    = 0;2 [" k+ H$ x1 I9 X
bi.biClrUsed       = 0;- E2 n5 y. E# \% |7 w( s
bi.biClrImportant    = 0;; ?% B  @/ e8 C
dwBmBitsSize = ((Bitmap.bmWidth *
: J" o6 H# C+ x0 q$ f wBitCount+31)/32)* 4
5 s4 l8 o, f5 ~8 b4 a8 g8 _- E    *Bitmap.bmHeight ;
8 s$ m1 G) D$ o4 x# \. ~
0 h  q2 \0 C6 t) ]9 \3 U; A //为位图内容分配内存! s: ]6 }* z$ b3 J" d: l
hDib  = GlobalAlloc(GHND,dwBmBitsSize+" @) z1 g6 }: r* ~* C* U
dwPaletteSize+sizeof(BITMAPINFOHEADER));
$ z# f$ M+ r" r+ B. e lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);
% \+ Q) P/ c+ W4 w5 e9 ] *lpbi = bi;
6 o3 U% q) ~2 d( p1 g, a  I$ c7 Y# E3 t9 c
// 处理调色板
# T  C0 _; r- E2 W8 W0 u; p hPal = GetStockObject(DEFAULT_PALETTE);9 Q, q* Y7 R* p" x
if (hPal)
# x  R% r/ ]8 F& L! v. M7 ` {" T' c) d6 ?; u
   hDC  = ::GetDC(NULL);
. }: ~3 s9 w6 B1 H  v7 |1 }/ ~    hOldPal = SelectPalette(hDC, (HPALETTE)hPal, FALSE);: _+ ~2 K+ |. W# f# `; N' J
   RealizePalette(hDC);
! e0 I7 r& V: P) q, L4 z/ }  L$ n }7 B0 D' m  @- h. X- p, p

2 z8 w! w& H& W4 m  // 获取该调色板下新的像素值
& s  ~1 C. F/ m: `% C$ a) u8 ? GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight,5 U1 [. _2 n" q6 n
   (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)+dwPaletteSize,5 o" Z  Z' y0 ?; d" I! S
   (LPBITMAPINFO)lpbi, DIB_RGB_COLORS);
) u1 P! P: s. Y0 U. S$ u: u" K
. H3 `3 M; W7 Z3 c' W  //恢复调色板 $ }/ R% U6 e$ q0 N7 l& k
if (hOldPal)& u* y; c' F8 C* y) C" W4 k! I7 ]
{2 M# A  G+ p9 j" U
   SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);4 v) C1 Z+ K3 |  X2 q6 z
   RealizePalette(hDC);
7 A3 ^: o% r, }& [! Q  K    ::ReleaseDC(NULL, hDC);
# b- g9 I  x, d }
7 X9 x) ~" }8 r. \2 d/ N3 X* f- f+ |6 M) K- m/ ^
//创建位图文件
8 v4 y9 }& X0 Z fh = CreateFile(lpFileName, GENERIC_WRITE, 5 }4 B# l$ d/ ^
      0, NULL, CREATE_ALWAYS,
& C' v9 S" j: B) ^+ S! s       FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
: p- z! D' b" k! {9 i. E2 ^ if (fh == INVALID_HANDLE_VALUE)
/ j+ k7 Q% A. S* Z# l    return FALSE;
1 i! ^4 u2 u& b5 Q, a: {: J! V1 w2 h! \" {" U) H
// 设置位图文件头7 u: T( @) h4 n3 S: j
bmfHdr.bfType = 0x4D42;  // "BM"; k5 H1 h% s% F5 [  @: ~
dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;
+ v- Q. M' W% u7 _ bmfHdr.bfSize = dwDIBSize;
/ `: K" l, s4 G5 u1 ~" {$ a5 p bmfHdr.bfReserved1 = 0;
+ S3 m( F6 f5 D8 z% f1 O6 W2 \0 R' y bmfHdr.bfReserved2 = 0;
' K4 o  s9 x4 P/ |3 h bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER)
( {9 C6 v2 |  n7 g    + (DWORD)sizeof(BITMAPINFOHEADER)
+ S, |# }  t! _% v5 b  d- ?5 Q    + dwPaletteSize;
! O; r9 D7 D3 s6 i& A. e1 C6 B( U- W2 s, o  ~; s+ I
' r6 @/ v& O6 W8 r% V1 ?
// 写入位图文件头- p: H/ P  O* \- S5 ]. ~, u3 u. }
WriteFile(fh, (LPSTR)&bmfHdr, sizeof
) W0 b9 h/ }' P# V; {& ] (BITMAPFILEHEADER), &dwWritten, NULL);
2 d8 T  M, h  i9 m$ g" H# c5 S5 R" H5 ]. [; `9 z
// 写入位图文件其余内容' J3 q" ~, e- h' Y" y+ p, J
WriteFile(fh, (LPSTR)lpbi, dwDIBSize,
& s, R- c9 V* Z! L# E &dwWritten, NULL);6 J  l8 E7 @7 f3 m( I1 }8 w  p/ @0 ~5 X
+ y' v5 }, A  L) N# s
//消除内存分配  2 Q1 M* k. K; R1 v
GlobalUnlock(hDib);* I5 t$ }; W" s/ \
GlobalFree(hDib);
$ L$ C) B4 `8 _  f4 S% e- n% o CloseHandle(fh);
2 F4 h% u% \  g; o% e8 T% q1 n2 U) p! p
return TRUE;
$ |% I- {0 f# b' b2 L( t}# b( b9 D8 {; A! l0 J6 g

. t5 C. D" X* ~- M1 J8 B( K
5 m$ _5 v, h' N20. 如何获取局域网上计算机名及它们的IP地址
  {4 e% N  n- Q; E/ k: t+ o
; |- _7 w0 X  Gl 连接ws2_32.lib和 mpr.lib库2 S; `8 T0 W( D7 _% J/ t  j; @
3 S8 r) ^0 |; _4 i( v. P* L& C
l #include winsock2.h$ Q' I5 ^# {; ~8 A4 N

" E$ u2 T- Y. z4 nCString strTemp;
& i" V* a# a1 \+ ]: {+ S, ^+ e4 Zstruct hostent *host;6 C. M) _9 @: P
" P. {! C0 G$ j6 E
struct in_addr *ptr; // 检索IP地址 9 A1 Q( C6 [8 `% l! S" u) k
DWORD dwScope = RESOURCE_CONTEXT;
: ]# k9 _9 m, l6 @$ dNETRESOURCE *NetResource = NULL;
! l6 w* v* @+ E. QHANDLE hEnum;
, Z* W/ ^0 M- Y4 T. F. }2 D% @WNetOpenEnum( dwScope, NULL, NULL, 1 K) n! ]4 D1 P6 j" _4 m
         NULL, &hEnum );) m  ]9 y" j0 z! R# P  S, T9 D
0 S1 C% a- Q: X% q- e& V
WSADATA wsaData;& C% |" M0 Y2 J7 y5 ]
WSAStartup(MAKEWORD(1,1),&wsaData);% \3 q$ ?" B, o9 J4 ?& Z! ~( O( W! x* J
0 l  _0 A! @% [5 r8 Z
if ( hEnum )
' ~* u, }# n8 z% q+ q{
% A9 ~# C" q. d- t DWORD Count = 0xFFFFFFFF;7 S5 Q+ v% m' N2 u0 m. |- g  O
DWORD BufferSize = 2048;
$ a) x$ Z% R' |7 h2 i* F LPVOID Buffer = new char[2048];9 C" t4 i/ y1 `7 E
WNetEnumResource( hEnum, &Count, * W) N' Q" D: n& L+ A. m
      Buffer, &BufferSize );6 c, L) U, y3 Z5 j) I' x: n( ~2 \
NetResource = (NETRESOURCE*)Buffer;/ s9 ~+ V+ |7 o+ Q3 V4 f1 S
; F3 W3 R+ |: _, Z  U/ k
char szHostName[200];8 _- k( Z/ ^9 L# w% a- T( q
unsigned int i;
% J* M) D+ t; I" l
, m! R, Z! G# M; E3 r! W for ( i = 0;
) w. ]) e& l4 ]  G7 d3 u       i < BufferSize/sizeof(NETRESOURCE); 1 B. t) f  t! ~) n$ v
      i++, NetResource++ )
: U, }5 l3 E9 k9 R; r {
. e/ F# \& j' Y& D       if ( NetResource->dwUsage ==
: `* V8 W/ y  s5 |* ~$ }. z6 D          RESOURCEUSAGE_CONTAINER &&
' Z# U* T% t( i) ~          NetResource->dwType ==
* X* U/ d# U& o% Y4 q0 P, P; B  t          RESOURCETYPE_ANY )8 j& o$ M: g( }$ o0 [6 W
      {. a& c3 A: Y" w! G- p
         if ( NetResource->lpRemoteName )5 W- w8 c" T+ c. H3 j
         {
7 N/ H. f/ y0 c2 s1 L$ ^             CString strFullName =
3 D) R* s. q% Z6 L. R- U; y: _2 |                   NetResource->lpRemoteName;
  e  o4 _& Z* }7 E             if ( 0 == ' [4 ^; T8 d" i1 Q9 B2 t& `# w
                  strFullName.Left(2).Compare("\\\\") )
* m* J; {9 D0 }2 _* z; d& N7 r9 e                   strFullName =
% D# z  `6 p  @" f9 n* d4 |( M' h                      strFullName.Right($ W& k+ y3 {: g$ O3 d
                        strFullName.GetLength()-2);
+ |3 ^( v# S6 N6 {$ _7 F, O2 Y  L/ W! T. w! N; \
            gethostname( szHostName,
/ O4 D$ g9 A7 y% c: ~2 e1 D                   strlen( szHostName ) );
7 T  n" W8 n# j: ?9 V: a2 u             host = gethostbyname(strFullName);
" R+ g  E# {2 S0 [$ u! X1 H
8 C- m6 J0 }& a7 q             if(host == NULL) continue;
. _5 D" N7 \9 ~2 i: W" Q  S; [             ptr = (struct in_addr *)
) |4 G3 R4 E7 o9 O5 i( l0 S                   host->h_addr_list[0];
& y' r  I" ^5 q* n& d9 t# b1 G* i$ H" s( u6 Y2 N8 W
            // =. 分隔开IP:211.40.35.76.          2 K0 a: W( L3 D1 H4 ?6 H
            int a = ptr->S_un.S_un_b.s_b1;  // 211          # l  D4 U9 B+ [; `
            int b = ptr->S_un.S_un_b.s_b2;  // 400 K! m3 J2 B5 n0 [' j
            int c = ptr->S_un.S_un_b.s_b3;  // 35
. N$ a% i7 E8 r( o; m( h3 k             int d = ptr->S_un.S_un_b.s_b4;  // 76
! E, K* D% x) l! z/ e; R" K' {6 |5 d- u4 {  i- I+ F% o
            strTemp.Format("%s -->  %d.%d.%d.%d",( f: k* w( B  w* v  ]
                  strFullName,a,b,c,d);
* P7 m& M3 G; |; @             AfxMessageBox(strTemp);1 x1 d9 _! h8 R% e- b
         }4 m* g% v" J9 L" l6 O1 R8 T
      }/ g! r" n. K+ U1 @
}
( }1 d/ R. C6 W; i/ n) v
4 {* U# ]6 s# F5 M  D5 r delete Buffer;
: l# M) g9 D5 z/ i9 S WNetCloseEnum( hEnum );
+ K% S1 H2 m& C  V  F% I}
; n# e: c% P3 z; f: d- O
( Y) v7 k) j  @& Z+ P/ F, a5 YWSACleanup();

		自动登录	找回密码
密码			注册

编程技巧20法(11-20)

浏览过的版块