16进制字符模式的图标处理

#pragma pack(push, 1)//ICONDIR structuretypedef struct _tagIconDir_t{  WORD ZeroID; //Reserved. Must always be 0.  WORD ImageType; //Specifies image type: 1 for icon (.ICO) image, 2 for cursor (.CUR) image  WORD ImageCount; //Specifies number of images in the file.} ICONDIR, *LPICONDIR;  //ICONDIRENTRY structuretypedef struct _tagIconDirEntry_t{  BYTEbWidth;               // Width of the image  BYTEbHeight;              // Height of the image (times 2)  BYTEbColorCount;          // Number of colors in image (0 if >=8bpp)  BYTEbReserved;            // Reserved  WORDwPlanes;              // Color Planes  WORDwBitCount;            // Bits per pixel  DWORDdwBytesInRes;         // how many bytes in this resource?  DWORDdwImageOffset;        // where in the file is this image} ICONDIRENTRY, *LPICONDIRENTRY;#pragma pack(pop)//asc转换成16进制字节数据int ConvAsc2Hex(LPCSTR srcData, LPBYTE *pData){  int iSrclen = (int)strlen(srcData);  int iBytesLen = iSrclen / 2;  *pData = new BYTE[iBytesLen];      BYTE *pByteData = *pData;  for(int src=0,dst=0; src<iSrclen;)  {    BYTE bTemp = 0;    char chH = srcData[src++], chL = srcData[src++];    if(chH >= 'A')      bTemp |= (chH - 'A' + 0x0A)<<4;    else      bTemp |= (chH - '0' + 0x00)<<4;    if(chL >= 'A')      bTemp |= (chL - 'A' + 0x0A)<<0;    else      bTemp |= (chL - '0' + 0x00)<<0;    *pByteData++ = bTemp;  }  return iBytesLen;}//ASC数据写成文件BOOL ConvertAsc2File(LPCSTR srcData, LPCTSTR sFileName){  BOOL bRet = FALSE;  BYTE *pData = NULL;  int iBytesLen = ConvAsc2Hex(srcData, &pData);  if(pData && iBytesLen)  {    HANDLE hFile = CreateFile(sFileName,       GENERIC_WRITE, 0, NULL, CREATE_NEW, 0, NULL);    if(hFile != INVALID_HANDLE_VALUE)    {      DWORD dwW = 0;      WriteFile(hFile, pData, iBytesLen, &dwW, NULL);      CloseHandle(hFile);          bRet = TRUE;    }  }  if(pData)  {    delete [] pData;  }  return bRet;}//绘制到HDC上int DrawIconData(LPCSTR srcData, HDC hdc){   //转换成源数据  BYTE *pSrcData = NULL;  int iBytesLen = ConvAsc2Hex(srcData, &pSrcData);  ICONDIR *pIconDir = (ICONDIR *)pSrcData;  ICONDIRENTRY *pImgEntryArray = (ICONDIRENTRY *)(pSrcData + sizeof(*pIconDir));  int iErr = 0;  do   {    if(pIconDir->ZeroID != 0)     {      iErr = -1;//头非0      break;    }    if(!(pIconDir->ImageType == 1 //icon      || pIconDir->ImageType == 2 //cursor      || 0))    {      iErr = -2; //格式不对      break;    }    int x=0, y=0;    for(int id=0; id<pIconDir->ImageCount; id++)    {      ICONDIRENTRY *pEntry = &pImgEntryArray[id];      HICON hIcon = CreateIconFromResourceEx(        pSrcData + pEntry->dwImageOffset, //pointer to icon or cursor bits        pEntry->dwBytesInRes, // number of bytes in bit buffer        (pIconDir->ImageType == 1), // icon or cursor flag        0x00030000, // format version        pEntry->bWidth, // desired width of icon or cursor        pEntry->bHeight, // desired height of icon or cursor        LR_DEFAULTCOLOR // load resource flags        );      if(hIcon)      {        DrawIcon(hdc, x, y, hIcon);      }      x+= pEntry->bWidth + 2;    }  } while (0);    //结束清理  if(pSrcData)  {    delete []pSrcData;  }  return 0;}

//测试源数据

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