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 f: F' u+ ^* f
                  }
: u! {2 l' n/ e; u- l
3 F- Y; {, |1 Z                   // 修改位图 DirectBitmap, n0 Q- j* y1 z2 p: D: l
                  SelectObject(DirectDC,PreviousObject);
( _) L+ o6 ]2 c                   : o% R8 l- T: _2 |; Y( Z3 `! G
                  // 完成
0 m# j, b# T% O                   RetBmp=DirectBitmap;
3 H4 X; I1 [7 c             }1 V1 Q2 o+ a( j
            // 释放DC0 M' Q: r" n( T' \) I9 V
            DeleteDC(DirectDC);
$ W0 o8 l6 e& f: ~& Z& Z% }          }  j" c0 V+ r4 w; G
         // 释放DC
# W4 J0 y/ F$ D- |          DeleteDC(BufferDC);0 \4 O8 u+ \- P: ]0 n5 e! U  Q
      }
, K9 X% B) x% w) Y: m6 o# h; w9 d, ? }6 Q; g" h. ?8 b+ p% W( g! b" B( t
return RetBmp;
+ h3 ?. q2 `3 g% P# w3 |/ H  l}+ c. ~7 E; Z7 X# y9 v0 S; S

. Q$ L$ \& i, S" t: m$ o* B0 A4 l3 b, V6 R/ w& a7 v2 ?
用法：( z' z; I8 k* ~4 G3 y5 q) M
+ R3 j/ ~9 E+ i: |! u
HBITMAP hBmp2 = LoadBitmap(g_hinstance,MAKEINTRESOURCE(IDB_SAMPLEBITMAP));* O2 V- z* }6 a
HBITMAP hBmp = ReplaceColor(hBmp2,0xff0000,0x00ff00); // 替换蓝色为绿色
- F9 F9 @  f& O! n+ L' K- Q......9 q/ N1 o" r, N5 ?

  B' C0 N0 }9 N0 O2 s' H) z: FDeleteObject(hBmp2);( {8 T! Z1 @6 [0 y
DeleteObject(hBmp);
9 ?6 Q  a+ q$ M, E& Q2 q! o* r
) q. c. F# A% I: ~* D
19. 如何转换并保存位图" ]" v; I9 c" O+ p# a

/ v% O) R2 S; Z7 a) @" M" L//********************************************************************************
. O: P" J) I! E5 y: _//* 名称：DDBToDIB# V! j( D0 L: d- n
//* 作者：徐景周(jingzhou_xu@163.net)" d- C' e7 Y& G3 ]
//* 功能：设备相关转换为设备无关位图
  w' m. ], g, c5 h//********************************************************************************8 c0 q6 J& s& R+ Y* i
+ ]6 {* I2 g) J& S
HANDLE CScreenSnapDlg::DDBToDIB( CBitmap& bitmap, DWORD dwCompression /* = BI_RGB */)
! a5 B4 t) Z6 p) e  v- q' o{7 Y7 e/ @1 q8 \
BITMAP             bm;
" ~9 `7 }/ y4 S4 I: t* Q# L, z& x BITMAPINFOHEADER bi;; ^$ C2 y2 j1 o& P
LPBITMAPINFOHEADER  lpbi;( \  U$ x* {) H, K  A- F
DWORD             dwLen;3 _9 s' E" \7 ]
HANDLE             hDIB;
+ K/ C9 i/ T+ e# W7 F HANDLE             handle;$ y0 a4 \- Z5 G) j9 _) o) [
HDC                   hDC;  i( c: ]: x! \
HPALETTE          hPal;7 @$ q2 b! [6 i- ]
& |$ \! h, r6 @/ d8 w1 j; c' |3 m
CWindowDC          dc( this );0 J! W9 E  F* l* k, U, q
CPalette          pal;
0 w# W5 C5 S( F, k: F //如果支持调色板的话，则建立它2 @9 @: N  i9 o! K, b- W% {( R
if( dc.GetDeviceCaps( RASTERCAPS ) & RC_PALETTE )
2 h2 F$ p! u5 e {
& F" H$ N* C, t$ h& b. ~       UINT       nSize = sizeof(LOGPALETTE) + ( sizeof(PALETTEENTRY) * 256 );& g% l7 f8 V* z+ \2 y" k
      LOGPALETTE* pLP    = (LOGPALETTE*)new BYTE[nSize];+ X6 [0 l( O, o0 _  F2 ^/ C7 p' O
      pLP->palVersion    = 0x300;- {, a& X6 H' D" E1 o4 z# m
      pLP->palNumEntries = (unsigned short)GetSystemPaletteEntries( dc, 0, 255, 8 u3 J1 D0 c( M2 F
      pLP->palPalEntry );
$ g2 r" m; k" F8 e, F7 C/ Y4 k* M7 y5 G
      pal.CreatePalette( pLP );+ P3 X* `5 s& P4 A
: N% n/ F+ |0 U$ L" M) D2 C
      //释放7 [: [( P* N* z. g( N
      delete[] pLP;
+ L6 w0 J, u) i4 u9 \) I6 `/ g }
  K" s  B7 P, C8 n3 [, ]( U+ ~  \6 m0 }0 T' @6 X& B: [
ASSERT( bitmap.GetSafeHandle() );1 F( `! r! @8 J3 N. |7 e
9 n" b4 {$ f1 o
) y3 g5 R9 ?+ e2 w! L  Y# D
//不支持BI_BITFIELDS类型
8 @7 J. G) H5 C4 {9 z' y if( dwCompression == BI_BITFIELDS )/ y8 ?) m! M, Y* R2 ?
      return NULL;
5 x. o5 K$ j- @' J! F" a5 }" Y* V/ I" Y+ L' O' X/ w0 o! b0 Z
//如果调色板为空，则用默认调色板4 m# S4 V$ G2 U
hPal = (HPALETTE) pal.GetSafeHandle();5 p) m" e( e5 o
if (hPal==NULL)0 c" B8 Z$ ]( ^5 u$ G" ~5 ]
      hPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);
/ V/ `4 f3 M9 w6 G% q! p6 C
; N8 y4 \$ [- }4 L' u //获取位图信息3 V4 L; s- ^  W% J6 H
bitmap.GetObject(sizeof(bm),(LPSTR)&bm);. }2 e0 Z7 ?! I
3 M$ m4 D1 f$ [. j) f: V$ V; t
//初始化位图信息头2 N! D0 [8 i6 @# K: W2 v: Z6 z% F
bi.biSize       = sizeof(BITMAPINFOHEADER);. h" h$ U3 e( j, w* @! I- y# I
bi.biWidth       = bm.bmWidth;. h, }; p. D# p: o
bi.biHeight       = bm.bmHeight;% F/ l5 p0 B2 }$ v, Z3 _$ L
bi.biPlanes       = 1;4 z. l( g* @% m& f- ^5 T* n% I0 v& w
bi.biBitCount       = (unsigned short)(bm.bmPlanes * bm.bmBitsPixel) ;
/ z* h) G- l* i% W+ w bi.biCompression = dwCompression;
% d+ x8 f6 @2 S- s- ^5 J# k bi.biSizeImage       = 0;
% `# ]/ @( x% P bi.biXPelsPerMeter = 0;+ n9 h5 j- ~' L
bi.biYPelsPerMeter = 0;  v2 J8 q& \. h& F- l$ [5 V2 F
bi.biClrUsed       = 0;
: B( _" R5 Z, c% |; m  T bi.biClrImportant = 0;
/ L  I) t8 {6 g- [% e0 O5 P; ~6 P* V3 C! R, H7 d0 r( o
//计算信息头及颜色表大小
7 s/ F$ S- z1 S3 \! {4 q int nColors = 0;
3 f# }" S6 H" H/ f+ } if(bi.biBitCount <= 8)
- A  F* [# t# J& w9 {7 P/ a; D; N       {) G# |0 G$ f" |9 u8 f# E( }
      nColors = (1 << bi.biBitCount);% [& p* z" I, X; r5 J% d5 j8 h" J; k+ R
      }
4 b: o, a. t; d; E* C" b5 @9 d( U$ G dwLen  = bi.biSize + nColors * sizeof(RGBQUAD);
, R0 R' \' t9 A$ T: `1 W. k9 x+ o" T; A$ J* x! {
hDC = ::GetDC(NULL);
) |0 E0 X/ h1 `+ M/ K hPal = SelectPalette(hDC,hPal,FALSE);
7 q+ `. ?0 C5 R" U# ^ RealizePalette(hDC);2 C1 \) n9 D6 @* D5 |5 e

9 O- Y, ^: |4 ^5 @7 ]3 e //为信息头及颜色表分配内存
  S2 z6 r9 _( Z hDIB = GlobalAlloc(GMEM_FIXED,dwLen);4 o4 I" `0 q, V, F0 V, N2 q
if (!hDIB){
- o$ M$ v9 d1 ?" I       SelectPalette(hDC,hPal,FALSE);
  x4 O# a" L2 l+ M       ::ReleaseDC(NULL,hDC);
1 A( y& A8 j! A: ?       return NULL;" A; Z" _) J0 C" K/ Z% _
}
/ A+ v5 y) A' r' f. e! O" P) r2 g1 z6 c  X  {, C$ c
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDIB);
6 H. f9 n$ Y; |2 k *lpbi = bi;; S0 w  P% J/ d+ H" h3 ~

1 V0 f+ `% ^* u+ Z) { //调用 GetDIBits 计算图像大小
; F4 U' e& P& T GetDIBits(hDC, (HBITMAP)bitmap.GetSafeHandle(), 0L, (DWORD)bi.biHeight,
$ H) z7 L7 O9 J; m2 f          (LPBYTE)NULL, (LPBITMAPINFO)lpbi, (DWORD)DIB_RGB_COLORS);5 X! l" b* y- {; Z
3 S( x3 G; V: c" d7 s
bi = *lpbi;& \1 c. ]3 V, o' ^) u1 u

4 ?: M8 x) I# ~; O) j1 T" R //图像的每一行都对齐(32bit)边界
' {9 w0 d0 J/ _+ Q if (bi.biSizeImage == 0){) o/ i% [# x6 c" A6 B; O2 i7 K
      bi.biSizeImage = ((((bi.biWidth * bi.biBitCount) + 31) & ~31) / 8)
. R# v: s1 i6 {' [6 V                      * bi.biHeight;
" T/ q2 ]+ W, _% c( J, [       if (dwCompression != BI_RGB)7 l% ?1 N" i; R4 @. O- T- |# n
         bi.biSizeImage = (bi.biSizeImage * 3) / 2;1 }# ~! O& Y: R9 P' ?9 A
}
9 M! X$ M9 ~, U6 h2 h- i& I //重新分配内存大小，以便放下所有数据4 P# w& X( e# e* ]. W* G: }' }
dwLen += bi.biSizeImage;
/ i8 n* ^. K. F  ^5 e& X5 e handle = GlobalReAlloc(hDIB, dwLen, GMEM_MOVEABLE) ;
/ F+ z4 Y4 {2 X7 g8 E$ `1 y! _9 { if (handle != NULL)
, b# y$ l+ n+ A1 Q$ k  e       hDIB = handle;
% x% I5 F! L" S5 e else
      {% x; X) p" S+ G. L
      GlobalFree(hDIB);
& k4 v7 Q: c- |3 i* t4 H8 J9 s) }# Z( P1 ^0 P% @- S: b/ v
      //重选原始调色板5 M$ z; a, T4 o; ?' }3 [
      SelectPalette(hDC,hPal,FALSE);
7 @0 {: {1 G: T5 R. X       ::ReleaseDC(NULL,hDC);% @5 i; ^" m% m$ p
      return NULL;
* L: _& w1 p) G       }
& U2 c; ~5 l2 ?5 Q //获取位图数据9 G% I5 U/ w7 W+ z1 w5 e
lpbi = (LPBITMAPINFOHEADER)hDIB;2 r0 }. Z+ |: e
//最终获得的DIB. g4 F' ?" R* j2 M
BOOL bGotBits = GetDIBits( hDC, (HBITMAP)bitmap.GetSafeHandle(),+ X& c! _; c9 _  `* H' l0 e7 G
            0L,                   //扫描行起始处2 a# m, x8 F, r' `8 H
            (DWORD)bi.biHeight,    //扫描行数) W' c* z  r3 j( `  Z( @6 R& N7 g
            (LPBYTE)lpbi          //位图数据地址5 m9 b5 {* I5 G; [4 M4 g% `
            + (bi.biSize + nColors * sizeof(RGBQUAD)),7 V2 S- @1 F6 f8 g) O
            (LPBITMAPINFO)lpbi,    //位图信息地址
) S9 ^. V" D& V7 k             (DWORD)DIB_RGB_COLORS);  //颜色板使用RGB$ \/ \, N, c8 p7 E8 @$ X2 h+ R( \" A: T
if( !bGotBits )# }( r  i3 g% `, i# z# V
{7 z& G2 v& s* }) U( U6 `
      GlobalFree(hDIB);% z+ W6 L' A4 S6 n4 U
      SelectPalette(hDC,hPal,FALSE);
, B) W# ~& `% Z. R2 X       ::ReleaseDC(NULL,hDC);; a4 u2 a; P7 l- v% V" l
      return NULL;
% Z/ o3 J5 a% i" L }4 F/ [0 L; ~1 k3 L
SelectPalette(hDC,hPal,FALSE);
# }+ r- |& o' L ::ReleaseDC(NULL,hDC);
: C3 ~6 k4 S0 o: q- Z return hDIB;
( f- n* Y7 {" X' T/ [}: F2 V- y5 U8 S; T+ t7 c
: D. [. {1 A' b
% I: u/ R% ?- @3 R* W
//********************************************************************************
4 d- g) m/ [+ v2 v1 w: k6 H# r//* 名称：SaveBitmapToFile
* W5 y+ F8 @1 t% l3 l" ?//* 修改：徐景周(jingzhou_xu@163.net)
+ b7 }# l% x) K6 m  p//* 功能：保存为位图文件9 c) X7 {* ^# k9 {2 k' t
//********************************************************************************  a; {- x0 E; \  T' Z# {7 `. t
BOOL CScreenSnapDlg::SaveBitmapToFile(HBITMAP hBitmap , CString lpFileName) $ |0 J2 g' q. @% A& e% p: `
{; F7 e+ N* E, |: o
HDC             hDC;                         //设备描述表  3 d" e/ {9 E: F3 z5 C& k, Y; y
int             iBits;                         //当前显示分辨率下每个像素所占字节数4 x* m9 G( E  z2 e
WORD          wBitCount;                      //位图中每个像素所占字节数' J6 z2 \) U/ Z
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  [% t/ ^9 p" z) e; z- o8 i- q
                  dwBmBitsSize,
  g" x( i! r1 P6 ?9 _; x/ S+ a                   dwDIBSize, dwWritten;
% s7 o: v& k0 X5 X  h% k- s4 E BITMAP       Bitmap;
- }& v! b: E6 l BITMAPFILEHEADER bmfHdr;                      //位图属性结构 6 i, C2 t% \: n% M" c
BITMAPINFOHEADER bi;                         //位图文件头结构    " w$ F" J2 P8 ]
LPBITMAPINFOHEADER lpbi;                      //位图信息头结构
# y9 ]: J! d1 F; B7 x+ |! J) D- h' q7 h6 ]
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# }$ }7 a9 ]5 Z9 n4 \+ K

; q9 X" P( b# ?, G
: u+ J) A( A4 M1 S! j //计算位图文件每个像素所占字节数8 _" F+ S4 @. n% H
hDC = CreateDC("DISPLAY",NULL,NULL,NULL);5 _6 h* E: u/ s" ~, T7 o6 M2 j: ?
iBits = GetDeviceCaps(hDC, BITSPIXEL) *
8 K( _- d! F' r* z% H GetDeviceCaps(hDC, PLANES);
/ z4 r6 K+ w6 g5 C6 D DeleteDC(hDC);. t" u! ]: R4 V0 a5 g
if (iBits <= 1)
5 B9 L) J2 I5 h- S% N) E    wBitCount = 1;7 ^3 Q8 H  b  O" G9 D, x! B5 U# C3 k
else if (iBits <= 4)4 P7 I5 O" r& \/ L3 R
   wBitCount = 4;6 i' z1 @4 b: ]5 N+ s
else if (iBits <= 8)
! |1 \; w" O5 O8 {0 l% ]3 Y; N    wBitCount = 8;4 J5 I/ l6 @5 j6 ^* I! I
else if (iBits <= 24)/ \8 V4 R4 m* P3 W9 ?5 p
   wBitCount = 24;- Z% t$ H, G" v1 o

! L) q2 P7 _7 O! S* J3 m/ D //计算调色板大小# w# z7 k4 w& x3 Z
if (wBitCount <= 8)7 `, Y/ j  f& ^0 C$ ^/ c% ~3 q
   dwPaletteSize = (1 << wBitCount) *sizeof(RGBQUAD);9 ?9 ~) `* }& e
1 J( ^) N' r7 A* Q
//设置位图信息头结构  r( j& t# ?0 {' i; B( P
GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&Bitmap);$ Q9 x4 C( x' o* D
bi.biSize          = sizeof(BITMAPINFOHEADER);
0 f; S! M2 b3 x. ?; A* [ bi.biWidth          = Bitmap.bmWidth;
$ q/ Q8 l5 ^9 _+ J- ]) ?: O bi.biHeight       = Bitmap.bmHeight;/ X/ l; c, r  n; s! `
bi.biPlanes       = 1;& m4 c0 E* b9 x* I
bi.biBitCount       = wBitCount;4 t7 M2 A( g7 h/ K2 J' ?; G. a0 Z
bi.biCompression    = BI_RGB;
. O, p0 @/ y5 l1 b4 ~ bi.biSizeImage       = 0;' r' D: |/ d% @5 m, N1 f* ^
bi.biXPelsPerMeter    = 0;  ]- P5 c. A6 [( [5 s" F6 h
bi.biYPelsPerMeter    = 0;; F- R0 u/ v0 X5 I
bi.biClrUsed       = 0;
5 x! [$ a8 z6 t3 ]' b0 ] bi.biClrImportant    = 0;
7 f+ w$ a; W0 S4 F' e) e dwBmBitsSize = ((Bitmap.bmWidth *
+ L5 E' `# S! S wBitCount+31)/32)* 4& e! c7 w; g9 t; q  z: p
   *Bitmap.bmHeight ;
3 Y8 q, p0 ?4 k0 q: g
% c. e8 v3 j4 f$ B* g7 B //为位图内容分配内存: w' ?5 l2 @& f; x% P
hDib  = GlobalAlloc(GHND,dwBmBitsSize+2 w% @1 F1 V% U) H  f- f
dwPaletteSize+sizeof(BITMAPINFOHEADER));
8 |( g3 v5 X( q% w lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);1 b' B' D1 C9 L! W" |
*lpbi = bi;* p, V. {8 m! O# Q, c, q

9 k* B4 d( ]" W2 x // 处理调色板 + S; A% D0 @" h* `
hPal = GetStockObject(DEFAULT_PALETTE);) G5 w. [3 ~6 g6 h, q: o# J1 X
if (hPal)
3 c: w( V6 U/ @$ v; V {
" _  E7 j$ `$ [6 l4 n. ^    hDC  = ::GetDC(NULL);0 i+ _9 C  G3 u2 }# y4 m: q5 k
   hOldPal = SelectPalette(hDC, (HPALETTE)hPal, FALSE);" x* F+ T8 A0 n$ @& ^  N3 k
   RealizePalette(hDC);
% s" f! V! e; Q  @ }
  S2 v' B+ X6 S6 A1 ~7 u
5 c6 ]7 ^( r& l8 b# @5 A  // 获取该调色板下新的像素值' J' `. D# t  o, z5 O
GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight,
* r+ k5 ]" C) |. `    (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)+dwPaletteSize,( `9 \  A  Y1 y
   (LPBITMAPINFO)lpbi, DIB_RGB_COLORS);
2 n6 X, A, ~0 ~/ f3 S6 t4 z: ]9 X- \
  //恢复调色板 5 Z' d1 g( m" S
if (hOldPal)4 h7 a! D9 N" k7 V9 T( ^6 E
{! x3 P' w+ \4 i5 w' s$ K9 V
   SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);
7 {' d7 C% o$ a8 f; j    RealizePalette(hDC);& v% F4 T! V" k! ^0 p  I; q( K
   ::ReleaseDC(NULL, hDC);
9 f9 h: Z  E% h1 d0 e }
% W6 j; L/ t* Z2 A8 R& l
+ L( u9 ]7 K9 r7 `; ?0 b //创建位图文件
- L" ?9 ~# E( c7 p9 z. j4 g& D& R' q fh = CreateFile(lpFileName, GENERIC_WRITE,
7 G$ `! k+ r$ B- Y       0, NULL, CREATE_ALWAYS,
% `5 _4 z  _& p0 B/ l* N       FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);/ T) X8 ?. B) q0 L$ t: a
if (fh == INVALID_HANDLE_VALUE)0 I5 ^0 Z) Z; x9 T7 K( v
   return FALSE;, t6 k2 t5 e8 x
) X7 v" q# j0 ?; Y+ q
// 设置位图文件头; @0 F* b9 Z- _( L( P' t
bmfHdr.bfType = 0x4D42;  // "BM"( y& Y8 H' @# B
dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;
* w) X0 r6 A8 d" E7 k8 C* @. E bmfHdr.bfSize = dwDIBSize;! \/ k" f$ N, j
bmfHdr.bfReserved1 = 0;- m& L$ T- ~: \
bmfHdr.bfReserved2 = 0;
6 l! C  _; Z, d2 T: \7 E1 e bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER)
) p4 p% M* G; j3 ^: h- G' u! t    + (DWORD)sizeof(BITMAPINFOHEADER)) x8 H8 q1 `% p; e, t
   + dwPaletteSize;
8 y0 E# e+ Z/ i# ]9 D
& U0 j7 H# v: Q! O' P( J
// 写入位图文件头. S0 O) B" n' ?5 d; w6 R
WriteFile(fh, (LPSTR)&bmfHdr, sizeof
& F6 t. c4 |2 K' G) [' R$ M$ M (BITMAPFILEHEADER), &dwWritten, NULL);6 N" J. u' D2 Z! u# D$ a( ^) L

/ G) [0 }) ^! M1 q& N1 `$ { // 写入位图文件其余内容
0 x# L) E1 S8 Z" P" ~/ _ WriteFile(fh, (LPSTR)lpbi, dwDIBSize, ' j9 K; O: z* n3 o( {8 d
&dwWritten, NULL);( H: X. A1 l! \& c
: x: b& ~7 P% Z' o& v
//消除内存分配
7 \/ s# N! r, C9 i- E) a% ^ GlobalUnlock(hDib);
& H9 q# \8 S/ c$ J GlobalFree(hDib);0 J0 j* _& g( J; m
CloseHandle(fh);/ l+ Y: m* R* T- z, T+ }  K7 Y
8 A7 |2 \7 N2 {$ S) V7 R' G. h
return TRUE;4 F3 X2 j) H$ J% E6 h  G  E" N
}
# o8 i3 c4 K% r. X3 j' ]' ?$ }% h8 a5 t, \

1 X6 S! ^$ X3 b- E& P8 a9 c20. 如何获取局域网上计算机名及它们的IP地址( s$ a# m% h- X* K2 a
7 Q1 j, e5 M% c
l 连接ws2_32.lib和 mpr.lib库
' X+ }3 U+ m/ a; X! P* q7 Y7 i
0 Q7 v+ B1 ~1 Y" Sl #include winsock2.h
  P4 a0 J3 o; Q) F: C; V9 @. ?: k" d# v/ |' w* ~; z0 L
CString strTemp;1 E" v7 I! E0 ?( Z0 i2 J6 E
struct hostent *host;0 J* v6 }3 k$ H# q( C

% e# H1 b3 E- m* _0 Wstruct in_addr *ptr; // 检索IP地址
2 y6 o8 N4 q. |$ M0 A( R/ IDWORD dwScope = RESOURCE_CONTEXT;0 Y8 q9 d% \: D2 Z! }4 c: l$ V/ i! b( g8 s
NETRESOURCE *NetResource = NULL;
$ w4 R! p7 W/ n/ DHANDLE hEnum;0 Y5 _" C+ w. y  U0 D2 t
WNetOpenEnum( dwScope, NULL, NULL, . f! F  S0 [+ R% G/ q
         NULL, &hEnum );
. X. U% G8 A5 U$ k/ p1 b8 S% o% J; e. R
WSADATA wsaData;9 ^: b  C; \- y- n2 |! P' J
WSAStartup(MAKEWORD(1,1),&wsaData);$ n1 X2 c& g. z3 L  s( V. |

; ?8 h) G( c; V. n* ?, B! E) h$ mif ( hEnum )
4 k+ c  T& Q: K{. ]5 Q( r' R6 q+ }1 @, t+ R
DWORD Count = 0xFFFFFFFF;/ I: `" R9 [: C, O" C% v
DWORD BufferSize = 2048;
1 W" E6 ]2 U2 [6 n: G" [ LPVOID Buffer = new char[2048];1 Y3 I; t- R& U- f8 @& i$ D
WNetEnumResource( hEnum, &Count, / u: Q( W0 D$ e) g7 E
      Buffer, &BufferSize );
2 A+ d5 x: H! g, b( M NetResource = (NETRESOURCE*)Buffer;3 o  ]3 ^) i# z

% n* U: m! G% {" u6 w. ?* J char szHostName[200];
3 j; i  d8 i# g0 o/ n5 c unsigned int i;
# f0 |3 q$ x5 m0 n
$ q- z; V7 B4 R% E, Z4 E/ ^ for ( i = 0; ! G0 F( `5 L! g7 K( j6 h
      i < BufferSize/sizeof(NETRESOURCE);
( a8 w4 s9 w( r  z7 a       i++, NetResource++ )
& _  K$ ?0 P0 z. Z# m0 i. V {
& \1 R' f" g4 w& Z       if ( NetResource->dwUsage == ( t( c" ]% X4 D6 s! m$ W9 u
         RESOURCEUSAGE_CONTAINER &&   ~1 [9 O9 ~3 B8 u8 X3 J6 K
         NetResource->dwType == 6 f( i0 W8 b0 M. e/ B% X2 f
         RESOURCETYPE_ANY ); d6 k# x! L- ^% Z% h- S- Z! M$ r3 e
      {
" m; ~" Z) d* j; S7 I          if ( NetResource->lpRemoteName )
; {, h% P  i+ O4 u          {" r, V7 c+ V; ?1 ~, F7 V
            CString strFullName =
! ^4 H8 C- Q2 C9 S& Z" t6 E                   NetResource->lpRemoteName;( D) m. g" e6 A" h8 \4 R
            if ( 0 ==
8 u8 E' l* O8 }                   strFullName.Left(2).Compare("\\\\") ) 9 o# d4 R0 c+ n7 j
                  strFullName = 4 y5 x) Q) L/ _9 P8 q4 D  T6 {
                     strFullName.Right(
1 U; f4 ^3 l, {2 n* _5 R/ l                         strFullName.GetLength()-2);9 D7 G! \# Q; N" v) H

9 A: _2 n7 X  o. u8 ~6 P; [. B             gethostname( szHostName,
: P, S) P+ t- y* V3 E$ n9 h5 O                   strlen( szHostName ) );- H8 Q( R+ [3 I3 W' T( j/ b7 i
            host = gethostbyname(strFullName);
  a; `/ M2 D9 q% C
  S% V/ ~4 z# h3 |  S             if(host == NULL) continue;
4 V4 k' z8 [$ a+ y1 G2 X3 ]/ V3 ]             ptr = (struct in_addr *) 5 {9 E6 b( i4 K& O& S  V/ H
                  host->h_addr_list[0];
2 M7 _6 e' T7 {* B1 K7 _$ H& l4 c4 h1 Q3 J5 a$ \( F
            // =. 分隔开IP:211.40.35.76.          ; X$ J  _3 f! T" C( g- R: K6 J
            int a = ptr->S_un.S_un_b.s_b1;  // 211          & L% }0 ~2 U. g
            int b = ptr->S_un.S_un_b.s_b2;  // 40# D$ ^& e5 K2 D4 Y
            int c = ptr->S_un.S_un_b.s_b3;  // 35
1 x- Q! j! h) Q1 Z4 m$ c) P0 k             int d = ptr->S_un.S_un_b.s_b4;  // 76
7 K! Y- B" [6 q% g- q$ H2 X* v  ]0 S
            strTemp.Format("%s -->  %d.%d.%d.%d",
. o1 X  ]$ {0 C: ?                   strFullName,a,b,c,d);
; X. ^- Y7 F0 X5 x( {2 C             AfxMessageBox(strTemp);
: o* k# G' n4 d3 h9 \4 Z          }! k; f1 p* D# H/ G: L: a
      }4 _3 B! B: k8 {
}2 d& z6 i6 _8 j6 ~7 V  P% \

- W( b) i5 f$ v delete Buffer;
3 k8 G3 _, J6 }' D WNetCloseEnum( hEnum ); 7 U% A9 z$ v* }/ t8 }* _
}
( l8 G- ^7 W- f3 Z& E% m- I5 z3 k0 w/ x% Z9 Z
WSACleanup();

		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