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 w5 c6 {  k9 K2 G5 y                   }8 {. A3 V: n9 m7 [7 x: J

. I. Y" t, B. Q! ]                   // 修改位图 DirectBitmap
$ x/ Z$ X+ X/ G4 U, C' R/ E+ F, |: L4 K                   SelectObject(DirectDC,PreviousObject);
- E" f6 T) G" X3 F1 z0 Q                   4 [3 t1 {' I0 Z# d1 q1 a9 b, }
                  // 完成' U4 g4 j) X# b% Y9 P8 c/ n. `
                  RetBmp=DirectBitmap;
' i9 ]) B1 G& V; b3 v             }  ^- S3 o& M' ?: h
            // 释放DC
% w% F0 N( A5 P' ^             DeleteDC(DirectDC);) B, [; W: l8 h* F6 }* B
         }8 n' w1 _- w9 J, P" P! v) ?" K
         // 释放DC+ n5 t) v, W1 i( O+ S6 f( q
         DeleteDC(BufferDC);
; |8 @8 j( M2 ?4 D7 }4 H. n       }
6 l$ B/ W( r' V/ N, S }) C! {2 p! Q+ ^* y
return RetBmp;
  @2 S$ U' e2 g- D# E}6 p4 M) ?. m  e- ~0 a* n/ q
9 j! ~' N9 y( J5 f# R+ L# ^
" `% ~' Y+ T- b2 q) I5 P& g& k
用法：
/ X/ P/ W6 ~" W* b5 _$ b+ [$ {8 |$ K3 l& h$ E
HBITMAP hBmp2 = LoadBitmap(g_hinstance,MAKEINTRESOURCE(IDB_SAMPLEBITMAP));
9 p( n0 i1 [" i' x$ o7 KHBITMAP hBmp = ReplaceColor(hBmp2,0xff0000,0x00ff00); // 替换蓝色为绿色1 t5 z0 ~9 [; c6 w
......1 i# y" V! f8 Z, V0 g

: k3 p' O- h3 ^& D  \* FDeleteObject(hBmp2);, N  p3 {$ T# M. c$ H! \
DeleteObject(hBmp);
3 ~7 l9 _, N) }( m8 i' `! v4 w! D; e1 G4 Z
; c, q# q( H# P3 @0 H3 r' e; H; T
19. 如何转换并保存位图$ ~  e4 P) R. R5 X" C$ @
) Z6 H1 ^& u6 u7 j# Q) _& I
//********************************************************************************+ ?. @+ F& E- B, V/ p( c
//* 名称：DDBToDIB
! ?! P6 {  \: H3 e# X% |: ^! ^//* 作者：徐景周(jingzhou_xu@163.net)+ N) S1 A5 i, y! d7 o* }. D9 G5 i
//* 功能：设备相关转换为设备无关位图
5 H. D+ ^" h1 `) K' o5 q) Q//********************************************************************************" h+ N1 E/ T  r% C. p: y* s0 I

$ n. W! b" |6 D6 m# F6 ZHANDLE CScreenSnapDlg::DDBToDIB( CBitmap& bitmap, DWORD dwCompression /* = BI_RGB */) 1 N( a% p8 x6 n7 y) G, ~7 Q, h( t
{4 I, Z& P( |! i4 G. N
BITMAP             bm;1 j$ J1 W6 h' ~
BITMAPINFOHEADER bi;- C! q" i& x* E3 [4 ?# b
LPBITMAPINFOHEADER  lpbi;
, L2 A. M4 Z( B DWORD             dwLen;
' D9 @, ]# |0 V' z( ], E HANDLE             hDIB;8 K7 |* q- k5 L. |% g
HANDLE             handle;2 U. m% y8 ~  o- y9 o
HDC                   hDC;
0 k, l% S, y' E2 U% S% D8 t HPALETTE          hPal;
8 e3 W; c; l5 W# Y0 @, Z# X$ l1 I* t* z- W
CWindowDC          dc( this );" p5 z& I) N, C- l( g5 F; C( B& h8 k
CPalette          pal;+ E1 M) h' R$ q& M, {. `5 e$ m
//如果支持调色板的话，则建立它) v0 p7 T/ J" R2 T1 ~8 z5 p! c
if( dc.GetDeviceCaps( RASTERCAPS ) & RC_PALETTE )
+ ]  G2 o7 }6 k' S {
$ Y: P: G7 J3 w" W7 B; `       UINT       nSize = sizeof(LOGPALETTE) + ( sizeof(PALETTEENTRY) * 256 );
7 {5 Y* C' T$ G       LOGPALETTE* pLP    = (LOGPALETTE*)new BYTE[nSize];
" m$ h- }  D% I" _! u3 q# Y2 I- O/ q       pLP->palVersion    = 0x300;4 h$ h& R1 T+ l- H4 C$ n
      pLP->palNumEntries = (unsigned short)GetSystemPaletteEntries( dc, 0, 255, ! J8 z) V% s6 ]; f! f; U+ X
      pLP->palPalEntry );
2 T- L: w, S2 p; u' H& _
6 y" r" u6 C) @% |2 V  H# n! U& x       pal.CreatePalette( pLP );. u8 P& A- w8 S) H

7 ^& R+ h$ S7 j) [       //释放$ \* D7 h0 I+ |  Y2 w! h$ M( `" c
      delete[] pLP;" m1 t& t& i8 z
}: s0 w7 x, z* ^8 o
0 v5 B$ Q/ s+ K& q
ASSERT( bitmap.GetSafeHandle() );5 v4 q8 v* E2 C* O; ^( y6 B
+ l; q* b" _5 O/ q: F
1 C6 s1 I# f% W' p
//不支持BI_BITFIELDS类型: M. ~, g# v5 t  P* {  t$ H
if( dwCompression == BI_BITFIELDS )
1 f' z+ U& B4 V* Q# P2 v       return NULL;
9 ^$ O& [0 m! C7 R* a, z
% g; K4 m6 L/ |4 v; g$ y. I! @ //如果调色板为空，则用默认调色板8 c0 W3 u) v1 b& l
hPal = (HPALETTE) pal.GetSafeHandle();7 m- s* @% u! v
if (hPal==NULL)6 O  {" y# S5 u8 m' B3 P$ D$ I" ?
      hPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);1 r2 Y$ k! f/ Q7 ]# O7 P% S, E& I' z# [

! E* ]8 z/ R- u //获取位图信息5 S$ u* `" S* A* B" m+ |
bitmap.GetObject(sizeof(bm),(LPSTR)&bm);: [. K; w- g/ F, f  M

) x% e* ?; }9 h" f //初始化位图信息头
/ X) @7 ?8 u* E! U$ m bi.biSize       = sizeof(BITMAPINFOHEADER);
% M4 `  v; }3 `9 y9 N! R bi.biWidth       = bm.bmWidth;
8 j( E" h9 @9 l, M( E" p# T bi.biHeight       = bm.bmHeight;% {: X& a' S# Q: ?% v* O- O4 _
bi.biPlanes       = 1;
/ a7 O$ I3 B  q) j: k! E3 A, I$ x bi.biBitCount       = (unsigned short)(bm.bmPlanes * bm.bmBitsPixel) ;
+ T! ?8 c( i  n& Q, _+ ]' z, m bi.biCompression = dwCompression;
% P" q. e0 x/ j) q1 H, Z bi.biSizeImage       = 0;
$ g& P0 B0 l' {8 {0 F: [ bi.biXPelsPerMeter = 0;0 @/ S/ |( B3 W, f/ Z: F- {
bi.biYPelsPerMeter = 0;
& Z- ^* V; b  G* H& g bi.biClrUsed       = 0;5 |( \/ i- {' s0 r; c# ^- R
bi.biClrImportant = 0;
" T) @2 g5 I, @7 X- E
$ e% S" Y/ Y- b* R //计算信息头及颜色表大小7 Y% Z0 u, ?* h0 ?3 F  \6 B
int nColors = 0;, T4 y+ R( Y% l/ ?
if(bi.biBitCount <= 8)& J9 ?, K! V. ^6 B
      {$ g" l! x& x" C1 q6 b/ D- E
      nColors = (1 << bi.biBitCount);
2 V1 @, h) H. C  c  s       }
2 ~  w, d9 S; l& t, M" _( |( O# C dwLen  = bi.biSize + nColors * sizeof(RGBQUAD);: s/ K. a" k6 i' I
8 h2 }) i+ j- b: @5 V0 N* f
hDC = ::GetDC(NULL);
. m7 G+ n0 `: n6 f6 H hPal = SelectPalette(hDC,hPal,FALSE);% a* E+ e8 X: A. ^$ q
RealizePalette(hDC);) ?. |. n0 J4 ?) l' H2 i
' c/ D4 M! j7 R0 R% j7 t
//为信息头及颜色表分配内存- `, D& ]. Y/ u. F$ t. Q4 N, k; q
hDIB = GlobalAlloc(GMEM_FIXED,dwLen);7 T: a/ O9 G1 h
if (!hDIB){
4 E  e7 n/ y; |- p/ a. J: b- N       SelectPalette(hDC,hPal,FALSE);
  i% r, j4 y9 C! s       ::ReleaseDC(NULL,hDC);- t7 |" `5 c8 R0 j# c
      return NULL;/ {9 C8 d" m3 A2 ]5 h
}
" U( f5 g; i' ^1 v0 g3 e* u  U1 _: O" j/ H
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDIB);
$ Q0 l: _* U1 G/ D *lpbi = bi;
" l! `" P" S0 a# V* C( f% G! B. Z1 f, L
, u4 C! i; A- E( V //调用 GetDIBits 计算图像大小
$ B8 o2 L$ h+ j: ~/ ^ GetDIBits(hDC, (HBITMAP)bitmap.GetSafeHandle(), 0L, (DWORD)bi.biHeight,% V. T7 J& H6 n( a
         (LPBYTE)NULL, (LPBITMAPINFO)lpbi, (DWORD)DIB_RGB_COLORS);( B* }, o! y, h2 P: U. L

9 l3 k* U# P' @7 i bi = *lpbi;
/ c! J9 l6 h3 q, R, ?0 U5 b9 q( @; e# [- J  _- K
//图像的每一行都对齐(32bit)边界2 F2 w, {$ w, [! n
if (bi.biSizeImage == 0){# d$ }6 @9 i+ W; F
      bi.biSizeImage = ((((bi.biWidth * bi.biBitCount) + 31) & ~31) / 8) $ M. \1 [/ ?* @+ b5 D) n
                     * bi.biHeight;" z. K( h& M; x8 o; U
      if (dwCompression != BI_RGB)  Z6 U- j! }+ s8 S' ~) L. @1 t
         bi.biSizeImage = (bi.biSizeImage * 3) / 2;
+ S1 f9 ?, t) a- L0 Z, x' U0 \6 m }
* }0 @; u* g8 I! \; ^! K/ M# {; y2 o //重新分配内存大小，以便放下所有数据$ T. a; P6 o5 H. D
dwLen += bi.biSizeImage;
1 ?7 u2 t6 s; U" u" u$ g% s3 o4 M handle = GlobalReAlloc(hDIB, dwLen, GMEM_MOVEABLE) ;
' v; [5 [# v) R  T* ?1 |) C if (handle != NULL)
0 @- \6 {4 o6 h4 s       hDIB = handle;
# z5 j; E, r7 D& _ else8 m0 X) H- C5 Z5 S7 K6 ~
      {
5 f) F5 i- L5 X! \& y       GlobalFree(hDIB);. ~- f: _: w. C# D+ a3 G
: A6 T% R/ D! s, ~! d1 H5 U
      //重选原始调色板
3 G7 d% g- W+ Y* u% {       SelectPalette(hDC,hPal,FALSE);
/ [  D- j: {7 [3 a1 q9 n       ::ReleaseDC(NULL,hDC);( p; n8 A3 T. |, R, q9 w, s
      return NULL;
$ u9 K/ o, z8 A' O& j, l       }4 u5 Z7 Z) C0 M( N/ a( U, x
//获取位图数据/ @4 g" w0 t4 _( X3 N8 @# \
lpbi = (LPBITMAPINFOHEADER)hDIB;, `4 t; h& B4 ~
//最终获得的DIB
0 F9 y0 N0 m" a/ j. \7 H6 p1 @ BOOL bGotBits = GetDIBits( hDC, (HBITMAP)bitmap.GetSafeHandle(),
1 Q* x+ v* P: f' p/ x             0L,                   //扫描行起始处
5 S5 F  k/ j( ?# r, W% ^# I& |             (DWORD)bi.biHeight,    //扫描行数
5 u  x( ?- h8 `0 D8 h8 P3 V. n             (LPBYTE)lpbi          //位图数据地址) R8 O+ `5 _$ u3 y
            + (bi.biSize + nColors * sizeof(RGBQUAD)),
* B/ ^$ m' f8 {( l             (LPBITMAPINFO)lpbi,    //位图信息地址9 k; L6 \3 u. S8 r4 U+ W
            (DWORD)DIB_RGB_COLORS);  //颜色板使用RGB
0 a6 w) s7 u# ^- x' ?5 q* W) M if( !bGotBits )* \$ |1 p' S4 n8 a
{
7 k* Q8 [) G7 d, |9 s6 Z- O- u  z       GlobalFree(hDIB);
% P" S& G) Z, v! v: I: ?       SelectPalette(hDC,hPal,FALSE);5 V' B/ M' w+ g+ U
      ::ReleaseDC(NULL,hDC);5 d- x- b/ i/ U/ B: @; P3 w
      return NULL;
8 h. d# c. g1 U  |4 Y }
- M" h8 p; `+ T5 i SelectPalette(hDC,hPal,FALSE);
' S8 \3 z& ]5 k) q, n& R3 C2 h ::ReleaseDC(NULL,hDC);
( n' p7 p' b9 \$ U  B8 j return hDIB;
( T" {' X8 [; u4 u, ]* E+ }! x}
$ a: L7 W5 @& I* P3 z- r/ U# N9 g$ H9 Q( r$ D1 g9 q2 T
$ O0 x$ ^! Y' n
//********************************************************************************" L- v" _6 L* q0 c2 M
//* 名称：SaveBitmapToFile/ o% c8 z* w6 I6 w- C; }! L
//* 修改：徐景周(jingzhou_xu@163.net)9 H. q1 T& w2 d% b9 M2 A
//* 功能：保存为位图文件3 k+ Q0 A4 b0 O0 R4 e
//********************************************************************************
+ q6 t0 v3 C5 ~7 {) |# e3 I  f& FBOOL CScreenSnapDlg::SaveBitmapToFile(HBITMAP hBitmap , CString lpFileName)
% k3 A: Y8 ], }/ \3 B5 M! `{6 ~7 Z" w  ]$ D4 O9 \
HDC             hDC;                         //设备描述表  9 u# A4 B( F: o
int             iBits;                         //当前显示分辨率下每个像素所占字节数
3 w1 q8 Y, T$ r6 \1 D WORD          wBitCount;                      //位图中每个像素所占字节数
( @2 F) Q0 o' m( X7 A8 h 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+ x8 D" {) b6 z* t
                  dwBmBitsSize,
8 f- _3 Q: j7 K4 w3 v* O                   dwDIBSize, dwWritten;/ {7 |/ x9 f. L7 ~* T
BITMAP       Bitmap;
( H9 X1 h  B9 |* m BITMAPFILEHEADER bmfHdr;                      //位图属性结构 , r7 z  z+ w0 S- ?& y
BITMAPINFOHEADER bi;                         //位图文件头结构    ! I7 I& J. Z6 j: Y
LPBITMAPINFOHEADER lpbi;                      //位图信息头结构
' s5 p5 M) i$ B+ E
1 n# ~/ q; j/ S. v' c% j' ~/ L 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, l" y4 K/ C7 h' n+ v* e+ n( e% S* U4 r% x8 \  J3 e$ L

2 e" Z- q+ Q& y* {0 Z7 r4 W //计算位图文件每个像素所占字节数* y3 W* |& {; L1 Q( J# V' \5 M9 t. R
hDC = CreateDC("DISPLAY",NULL,NULL,NULL);
, j5 E8 X9 T: n- S) n/ g2 q4 x iBits = GetDeviceCaps(hDC, BITSPIXEL) * , T( U! m  z3 n# v" k/ Y0 Y+ g: u
GetDeviceCaps(hDC, PLANES);
$ W7 t7 V- P6 K7 d( J6 k DeleteDC(hDC);
; m7 J% T; ~; ?/ [2 f if (iBits <= 1)
$ \' x: d2 v2 q6 e7 y8 K9 x    wBitCount = 1;# u# G3 ]4 ~# e+ t; p$ J$ [) Z; ~
else if (iBits <= 4)
/ v6 G' g, P5 Q' t( I7 O    wBitCount = 4;! d8 w( w, Y% E2 a% ~
else if (iBits <= 8)
+ j' p8 \3 D/ B; L    wBitCount = 8;) K6 h+ ^; K% B& x# l: d
else if (iBits <= 24)* D1 a: K+ K5 H6 m5 z
   wBitCount = 24;* ~$ Z- O; N* i  y  Y
4 [3 E9 `# r0 p' w$ s& Z
//计算调色板大小' k% P7 ~7 H+ V+ j5 C0 O
if (wBitCount <= 8)
, f. b$ v+ U- a9 l& U# q    dwPaletteSize = (1 << wBitCount) *sizeof(RGBQUAD);3 z$ O5 b& q8 t

. M' v' E3 ?: z/ i9 K- O# l5 S //设置位图信息头结构; c5 z1 d0 _. q0 h. V( I# u- G/ P" [: d1 s
GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&Bitmap);
$ Y0 I4 R+ Q1 X, { bi.biSize          = sizeof(BITMAPINFOHEADER);$ S, X/ c' l) j! F$ I- {( c/ E
bi.biWidth          = Bitmap.bmWidth;
) Y+ f" }9 q8 K2 h& k; U bi.biHeight       = Bitmap.bmHeight;5 J5 j5 u  s. P6 k8 L0 q
bi.biPlanes       = 1;
8 n' |# }/ @  {" C3 @9 j bi.biBitCount       = wBitCount;
: l3 e* ]! o7 B6 V- m- J3 G, T0 A bi.biCompression    = BI_RGB;
/ ~8 U8 z5 I6 E0 S# ^: t) |  Z! n bi.biSizeImage       = 0;$ @* R6 G1 X1 z2 b7 q
bi.biXPelsPerMeter    = 0;) N: }8 F& [' @: c
bi.biYPelsPerMeter    = 0;
! e) i, W7 F6 a, ] bi.biClrUsed       = 0;* Q9 Q7 m# A' Q/ _3 S! e1 X0 p
bi.biClrImportant    = 0;
0 x- y  \! T2 Z$ W dwBmBitsSize = ((Bitmap.bmWidth *
% p" W4 B3 x: V wBitCount+31)/32)* 4: q. h. _1 I3 V5 e0 l! l
   *Bitmap.bmHeight ;. K) }7 a& Y' z* N
* \" w) o% I( T  b) k5 `. N" S
//为位图内容分配内存! T7 T! }, h9 P+ I9 N
hDib  = GlobalAlloc(GHND,dwBmBitsSize+
" w) Y3 k. |# C6 m dwPaletteSize+sizeof(BITMAPINFOHEADER));! P8 `$ \) h/ O3 N! f
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);
7 N6 D& i; R) q6 i *lpbi = bi;& Z7 J9 g4 v) K* g& Z7 t
0 u2 J- A  ~; O6 `
// 处理调色板 ( A9 q7 N- _' [, V0 _: d7 m
hPal = GetStockObject(DEFAULT_PALETTE);0 y9 \( Z! Y: k7 i0 W, J
if (hPal). [$ v! x8 W% O) Y1 X
{1 R1 y7 o9 I6 m; p' r  g
   hDC  = ::GetDC(NULL);. @. ~6 k$ q+ |
   hOldPal = SelectPalette(hDC, (HPALETTE)hPal, FALSE);- X3 G1 J2 \$ N& F! {8 G1 u( A: Y; \
   RealizePalette(hDC);2 L, C' l, J$ B1 r0 B% ?" M
}3 i' ]0 h  H& G+ `6 G6 K

$ M/ s7 |4 {1 d9 D( H6 A( _! h0 c  // 获取该调色板下新的像素值' z$ R- i( I! ~- c3 h9 f" i
GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight,
# q* K+ A5 C& [0 b8 z- k    (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)+dwPaletteSize,8 m3 a( H3 R: ~1 S/ z. Y
   (LPBITMAPINFO)lpbi, DIB_RGB_COLORS);
1 W4 _" Q5 O# c
% g+ G- M* O4 [1 ~$ @) U0 Z) @( T  //恢复调色板 ' v7 @& P5 ~3 h- o
if (hOldPal)
' U& |6 ?, `6 T- }- m& I( i {+ r, ]# T" i7 I. H
   SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);- R! G! D! d: U, X+ }
   RealizePalette(hDC);
# ?4 ]7 M9 B( t9 Z7 ^# h    ::ReleaseDC(NULL, hDC);
2 y5 T' H# R1 A5 t }
/ m6 u5 Z! {  {! t' }7 {; G/ C
4 [* g5 p  p( p( h/ t //创建位图文件 $ T' q! P* k( f  [/ R
fh = CreateFile(lpFileName, GENERIC_WRITE, ' P4 P& o7 r, V" ~0 i
      0, NULL, CREATE_ALWAYS,
8 M1 M* T% Y1 L7 t       FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
- l" P) v- A% @' H if (fh == INVALID_HANDLE_VALUE)
5 O( ]6 L1 y: U( }( y% [& k9 L    return FALSE;+ H; w8 h2 {! W, r. J; }
0 K6 ]0 \, P9 F4 r) w
// 设置位图文件头7 c/ ~  r$ @0 b, X% V! f3 x9 F: A
bmfHdr.bfType = 0x4D42;  // "BM"( R" @# `( U0 c
dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;    t5 }0 S2 r3 E: E
bmfHdr.bfSize = dwDIBSize;
1 D5 G; F- f: D, K bmfHdr.bfReserved1 = 0;/ t; R* Q+ Z7 l/ u4 a8 q% c
bmfHdr.bfReserved2 = 0;' A4 ^( X' ]4 E1 Q8 b6 d  g" @
bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER)
* k2 @0 f) p, a& ]  N8 V! g    + (DWORD)sizeof(BITMAPINFOHEADER)- c" }! V0 `* l1 p
   + dwPaletteSize;$ ?& I, k, O6 b1 `& ^* V9 S) v% f

) M* ]; V' I, X, ~6 m
0 c2 ?, {0 A* n& c" ^7 s# c // 写入位图文件头/ [! j% ?: n: @" c7 X9 M6 I
WriteFile(fh, (LPSTR)&bmfHdr, sizeof
; X. T* c0 r3 ~5 f7 }3 L (BITMAPFILEHEADER), &dwWritten, NULL);: A; d( @1 r4 T& F# _9 j- B+ `. }

/ X: q5 b* d1 A // 写入位图文件其余内容
% T% O/ S, K+ i+ `4 l; z WriteFile(fh, (LPSTR)lpbi, dwDIBSize, . S2 T9 v& E/ @: A" [+ X
&dwWritten, NULL);
; O/ ~2 j. h5 J  p! ~
6 ^: @' Q! d5 _6 n( ~. d* M3 ~ //消除内存分配
7 Y" j' {2 z9 X" p1 q! x9 M! p GlobalUnlock(hDib);
4 o3 r' }. |7 [" `6 _( p" \ GlobalFree(hDib);6 N! V- V( z! Q1 S; V& ?$ W) }& |+ d
CloseHandle(fh);( o1 M; m0 w* }3 {' A( Q

9 o1 K) O0 v6 I7 H" J7 {2 V$ a return TRUE;
- {; o: q& c1 q- G2 c0 I  f}9 e5 ?: j  J1 ~, m6 m, F

( M; `2 l1 A% r5 C
+ C: R+ f5 {! X20. 如何获取局域网上计算机名及它们的IP地址0 u% \# w- k- v: O$ U* {
  J. T6 Y7 k8 @5 j/ Z1 N
l 连接ws2_32.lib和 mpr.lib库/ Y4 L, \. p. ?9 v5 C; j

% e- u5 t4 ^7 z0 {l #include winsock2.h( \# H! o! K8 E; a0 k# }
! f9 E4 h% ^( r# T1 e9 \, \/ }
CString strTemp;
* @4 Q; |% X! v: X0 }" H0 R) U9 H7 tstruct hostent *host;/ ]" v# t8 k) u4 n3 }
$ ]# m$ `+ G% L+ w2 V( f$ A2 Z
struct in_addr *ptr; // 检索IP地址 ; J4 g- |6 n, n  y3 Q
DWORD dwScope = RESOURCE_CONTEXT;
7 P+ D  ]# E$ }4 L2 D, sNETRESOURCE *NetResource = NULL;4 s$ w: R  F8 `8 \/ V
HANDLE hEnum;5 R  z  Z) |1 x
WNetOpenEnum( dwScope, NULL, NULL, 5 u. T6 P" |$ |9 e- f) M
         NULL, &hEnum );
$ S( U2 C4 z- s5 c5 j/ |
! v/ x( V" M- h3 b& {$ RWSADATA wsaData;
: j5 f) u5 ^& B2 P/ D. z6 h+ VWSAStartup(MAKEWORD(1,1),&wsaData);% h- P8 z8 \" k
2 U) y; @+ w' W2 d/ X
if ( hEnum )6 `: F: x4 v$ p- \
{( |5 b  k4 W8 u9 W6 j
DWORD Count = 0xFFFFFFFF;
  P9 Y; G2 c3 [0 Z: A DWORD BufferSize = 2048;
3 [2 {) [( @: @2 |4 g' O! \) W9 k LPVOID Buffer = new char[2048];" X8 b% J7 `/ z* ?1 o8 M# a; J
WNetEnumResource( hEnum, &Count, 9 k! u6 \# ^/ Z' U1 }
      Buffer, &BufferSize );1 Q3 `6 i6 a0 D* H  ^! c% o
NetResource = (NETRESOURCE*)Buffer;
. l' R+ T& w( w) S3 h. B# e
% O" O% r; q3 E char szHostName[200];0 H/ h; S0 h) F. |$ D, j* n0 m
unsigned int i;
% U2 }1 R# ]# Z: m& F4 {/ j% }
" O" I) e! T# [) x# m& [ for ( i = 0; 7 i0 R% r. j  y) V6 Y" f8 t: `
      i < BufferSize/sizeof(NETRESOURCE); ; b6 P4 v, _+ r; |1 H. L; J
      i++, NetResource++ )
* i2 F9 i+ K2 \' T1 t. I {5 m& K: K5 m0 ?5 o/ e
      if ( NetResource->dwUsage == 8 |/ x+ \! p% z2 r
         RESOURCEUSAGE_CONTAINER &&
9 K4 A" x7 @: e  M          NetResource->dwType == 0 V& N; o5 F# l4 v( d% O$ y
         RESOURCETYPE_ANY )
) A3 T# S0 p( Q' ]9 O- a& N3 \       {
; H; t8 @6 V2 t! N2 V          if ( NetResource->lpRemoteName )9 e% N( ~& _+ E5 O# X* W
         {" v5 W& j1 b3 W% `% s" ~
            CString strFullName =
( r0 o, ~2 c4 H5 q                   NetResource->lpRemoteName;
' }: w4 U% c; r: p             if ( 0 == $ N( O% w9 H- f# v
                  strFullName.Left(2).Compare("\\\\") ) 9 Y8 b4 F5 X( Y" i9 j$ d; C
                  strFullName =
! z) a3 ?& _) D& ?6 m$ [                      strFullName.Right(; h5 ^4 @( o, X4 ?
                        strFullName.GetLength()-2);
0 n, j# y5 ?- a" S7 [& c8 p. ]2 C  J( E! q5 o
            gethostname( szHostName,
4 u7 ~, V# V# B3 Z- O0 Q                   strlen( szHostName ) );: g5 J" O9 m3 H
            host = gethostbyname(strFullName);  e" w9 L0 _* b# x% M
+ r; t8 F0 _5 K- h
            if(host == NULL) continue; 8 f! ~' x: Y7 g( L  s
            ptr = (struct in_addr *) ) \4 f, e* {0 U& i; C/ j9 |% g/ k
                  host->h_addr_list[0];                   6 h$ N6 Z4 t0 z) i2 I7 G* }+ M$ c

) e; L1 [; H2 _! d& B/ h             // =. 分隔开IP:211.40.35.76.
' J. q  E+ i- z! O             int a = ptr->S_un.S_un_b.s_b1;  // 211          & j$ @0 l% v: A0 s6 e. |4 h+ K8 ?* ^
            int b = ptr->S_un.S_un_b.s_b2;  // 402 C6 I. d) I1 A8 G+ O8 F
            int c = ptr->S_un.S_un_b.s_b3;  // 35! G' Y( B3 v/ A( c  r
            int d = ptr->S_un.S_un_b.s_b4;  // 76
+ I/ b! T! T2 C) D, V$ [1 p8 @! }; l  ^  z. r
            strTemp.Format("%s -->  %d.%d.%d.%d",
1 q6 [% Q6 z6 R7 v, [$ i8 ^                   strFullName,a,b,c,d);# P' S( @. ?3 g% m9 K9 r& Y9 j
            AfxMessageBox(strTemp);
& a+ H1 d, _+ u          }
' H& o/ T, R& J! u+ ]9 J- o       }
6 E) P  k  H3 X; a3 F4 n  t }" Y- d% d( G& l- l' o3 n) {
! \) U" b! c& t  _6 B1 q
delete Buffer;: z8 T: N+ [- j: a$ X! p
WNetCloseEnum( hEnum ); 6 x& i0 _2 n0 N1 Y4 k1 A
}
) p8 L/ S6 W( b* i" s
, `7 N( t$ Q4 GWSACleanup();

		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