请教如何获取字体的点阵信息？

Question

如上

Answer 1

//it is bcb code
unsigned long __stdcall GetCHNFont(
            char * lpszOutString,       char * lpszBuffer,
            char * lpszStringName,      char * lpszFontName,
            int    nHeight,             int    nWidth,
            bool   ftbBold,             bool   ftbItalic,
            bool   ftbUnderline,        bool   ftbStrikeOut,
            int    nAngle
            )//根据输入的字串，取字符点阵，返回点阵的十六进制字串到缓冲区中
{
    return GetCHNFontEx(
                            lpszOutString, lpszBuffer, lpszStringName, lpszFontName,
                            nHeight, nWidth, ftbBold, ftbItalic, ftbUnderline,
                            ftbStrikeOut, nAngle, 0,0,0,0,0
                        );
}
//---------------------------------------------------------------------------unsigned long __stdcall GetCHNFontEx(
            char * lpszOutString,       char * lpszBuffer,
            char * lpszStringName,      char * lpszFontName,
            int    nHeight,             int    nWidth,
            bool   ftbBold,             bool   ftbItalic,
            bool   ftbUnderline,        bool   ftbStrikeOut,
            int    nAngle,              DWORD  ftwCharSet,
            DWORD  fdwOutputPrecision,  DWORD  fdwClipPrecision,
            DWORD  fdwQuality,          DWORD  fdwPitchAndFamily
            )//根据输入的字串，取字符点阵，返回点阵的十六进制字串到缓冲区中
{
    if (lpszOutString==NULL || Trim((AnsiString)lpszOutString)=="") return 0;   //空字串，返回    HDC hDC;
    HBITMAP hBitmap,hOldBMP;
    HFONT hFont,hOldFont;
    SIZE size1;    if ((hDC=GetDC(0))==NULL) return 2; //不能取得DC句柄
    if ((hDC=CreateCompatibleDC(hDC))==NULL) return 3;  //不能建立内存图形设备CreateCompatibleDC
    if ((hFont=CreateFont(
                            nHeight, nWidth, nAngle, nAngle,
                            (ftbBold?700:0), ftbItalic, ftbUnderline, ftbStrikeOut,
                            ftwCharSet, fdwOutputPrecision, fdwClipPrecision,
                            fdwQuality, fdwPitchAndFamily, lpszFontName
                          ))==NULL)
        return 1;   //不能创建逻辑字体
    if ((hOldFont=SelectObject(hDC,hFont))==NULL) return 1;    GetTextExtentPoint32(hDC,lpszOutString,StrLen(lpszOutString),&size1);
    unsigned int nOneLineSize = (size1.cx/8+(size1.cx%8?1:0));
    if (lpszBuffer==NULL)
    {   //若缓冲区为空，返回所需缓冲区的大小
        return (nOneLineSize * 2 * size1.cy + StrLen(lpszStringName) +
                Trim(IntToStr(nOneLineSize*size1.cy)).Length() +
                Trim(IntToStr(nOneLineSize)).Length() + 10 //"~DGR:,,,"
               );
    }    if ((hBitmap=CreateCompatibleBitmap(hDC,size1.cx,size1.cy))==NULL)
    {   //不能创建位图设备CreateCompatibleBitmap
        SelectObject(hDC,hOldFont);
        DeleteObject(hFont);
        DeleteDC(hDC);
        return 4;
    }
    if ((hOldBMP=SelectObject(hDC,hBitmap))==NULL)
    {
        SelectObject(hDC,hOldFont);
        DeleteObject(hBitmap);
        DeleteObject(hFont);
        DeleteDC(hDC);
        return 4;
    }    SetBkColor(hDC,BackColor);
    SetTextColor(hDC,TextColor);
    FillRect(hDC,&Rect(0,0,size1.cx,size1.cy),0);   //????
    //BitBlt(GetDC(0),0,0,size1.cx,size1.cy,hDC,0,0,SRCCOPY);    TextOut(hDC,0,0,lpszOutString,StrLen(lpszOutString));
    //BitBlt(GetDC(0),0,0,size1.cx,size1.cy,hDC,0,0,SRCCOPY);    //取点串点阵
    unsigned char bits,k;
    char cHex[] = "0123456789ABCDEF";
    char *lpBuffer = lpszBuffer;
    StrCopy(lpszBuffer, "~DGR:");
    StrCat(lpszBuffer, lpszStringName);
    StrCat(lpszBuffer, (","+Trim(IntToStr(nOneLineSize*size1.cy))+","+Trim(IntToStr(nOneLineSize))+",").c_str());
    lpBuffer += StrLen(lpszBuffer);    for (int i=0;i<size1.cy;i++)
    {
        bits = 0;
        k = 0x80;
        for (int j=0;j<size1.cx;j++)
        {
            if (GetPixel(hDC,j,i)==TextColor) bits|=k;
            k>>=1;
            if (!k)
            {
                *lpBuffer++ = cHex[bits>>4];
                *lpBuffer++ = cHex[bits&0xF];
                bits = 0;
                k = 0x80;
            }
        }
        if (k && k<0x80)
        {
            *lpBuffer++= cHex[bits>>4];
            *lpBuffer++ = cHex[bits&0xF];
        }
    }
    *lpBuffer = 0;    SelectObject(hDC,hOldBMP);
    SelectObject(hDC,hOldFont);
    DeleteObject(hBitmap);
    DeleteObject(hFont);
    DeleteDC(hDC);    return (lpBuffer - lpszBuffer);
}
//---------------------------------------------------------------------------extern "C" __declspec(dllexport) unsigned long __stdcall GetBufferSize(
            char * lpszOutString, char * lpszStringName, char * lpszFontName,
            int    nHeight,       int    nWidth,         bool   ftbBold,
            bool   ftbItalic,     bool   ftbUnderline,   bool   ftbStrikeOut,
            int    nAngle
            )
{
    return GetCHNFontEx(
                            lpszOutString, NULL, lpszStringName, lpszFontName,
                            nHeight, nWidth, ftbBold, ftbItalic, ftbUnderline,
                            ftbStrikeOut, nAngle, 0,0,0,0,0
                        );
}
//---------------------------------------------------------------------------extern "C" __declspec(dllexport) unsigned long __stdcall GetBufferSizeEx(
            char * lpszOutString, char * lpszStringName, char * lpszFontName,
            int    nHeight,       int    nWidth,         bool   ftbBold,
            bool   ftbItalic,     bool   ftbUnderline,   bool   ftbStrikeOut,
            int    nAngle,        DWORD  ftwCharSet,     DWORD  fdwOutputPrecision,
            DWORD  fdwClipPrecision,DWORD  fdwQuality,   DWORD  fdwPitchAndFamily
            )
{
    return GetCHNFontEx(
                            lpszOutString, NULL, lpszStringName, lpszFontName,
                            nHeight, nWidth, ftbBold, ftbItalic, ftbUnderline,
                            ftbStrikeOut, nAngle, ftwCharSet, fdwOutputPrecision,
                            fdwClipPrecision, fdwQuality, fdwPitchAndFamily
                        );
}
//---------------------------------------------------------------------------unsigned int __stdcall Getversion(void)
{
    return 1;
}