MFC中GDI之CFont（字体）

字体主要是用于修饰文字输出的形状、高度、宽度、粗度、倾斜、删除线等。

BOOL CreateFontIndirect(const LOGFONT* lpLogFont);	根据LOGFONT结构体创建一个字体
BOOL CreateFont(      int nHeight,      int nWidth,      int nEscapenment,      intnOrientation,      int nWeight,      BYTE bItalic,      BYTE bUnderline,      BYTE cStrikeOut,      BYTE nCharset,      BYTE nOutPrecision,      BYTE nClipPrecision,      BYTE nQuality,      BYTE nPitchAndFamily,      LPCTSTR lpszFacename     );	根据指定数值创建字体，其参数与LOGFONT成员一致，故等价于 CreateFontIndirect
BOOL CreatePointFont(int nPointSize, LPCTSTR lpszFaceName, CDC* pDC = NULL);	根据字体的名字和高度创建字体
BOOL CreatePointFontIndirect(const LOGFONT* lpLogFont, CDC* pDC = NULL);	根据LOGFONT结构体创建点字体
static CFont* FromHandle(HFONT hFont)	将HFONT句柄转换为CFont对象
operator HFONT() const	从CFont对象中获取HFONT句柄
int GetLogFont(LOGFONT* pLogFont);	获取字体的名称和高、宽等属性信息

wingdi.h中定义：

/* Logical Font */
#define LF_FACESIZE         32

typedef struct tagLOGFONTA
{
    LONG      lfHeight;
    LONG      lfWidth;
    LONG      lfEscapement;
    LONG      lfOrientation;
    LONG      lfWeight;
    BYTE      lfItalic;
    BYTE      lfUnderline;
    BYTE      lfStrikeOut;
    BYTE      lfCharSet;
    BYTE      lfOutPrecision;
    BYTE      lfClipPrecision;
    BYTE      lfQuality;
    BYTE      lfPitchAndFamily;
    CHAR      lfFaceName[LF_FACESIZE];
} LOGFONTA, *PLOGFONTA, NEAR *NPLOGFONTA, FAR *LPLOGFONTA;
typedef struct tagLOGFONTW
{
    LONG      lfHeight;
    LONG      lfWidth;
    LONG      lfEscapement;
    LONG      lfOrientation;
    LONG      lfWeight;
    BYTE      lfItalic;
    BYTE      lfUnderline;
    BYTE      lfStrikeOut;
    BYTE      lfCharSet;
    BYTE      lfOutPrecision;
    BYTE      lfClipPrecision;
    BYTE      lfQuality;
    BYTE      lfPitchAndFamily;
    WCHAR     lfFaceName[LF_FACESIZE];
} LOGFONTW, *PLOGFONTW, NEAR *NPLOGFONTW, FAR *LPLOGFONTW;

#ifdef UNICODE
typedef LOGFONTW LOGFONT;
typedef PLOGFONTW PLOGFONT;
typedef NPLOGFONTW NPLOGFONT;
typedef LPLOGFONTW LPLOGFONT;
#else
typedef LOGFONTA LOGFONT;
typedef PLOGFONTA PLOGFONT;
typedef NPLOGFONTA NPLOGFONT;
typedef LPLOGFONTA LPLOGFONT;
#endif // UNICODE