编辑控件VC源代码:metafile_source/meta.h

// metaex.h - Header for CMetaFileEx

02#ifndef __CMETAFILE_H__

03#define __CMETAFILE_H__

04 

05// Placeable metafile data definitions

06typedef struct tagOLDRECT

07{

08    short left;

09    short top;

10    short right;

11    short bottom;

12} OLDRECT;

13 

14// Placeable metafile header

15typedef struct {

16        DWORD   key;

17        WORD    hmf;

18        OLDRECT bbox;

19        WORD    inch;

20        DWORD   reserved;

21        WORD    checksum;

22} ALDUSMFHEADER;

23 

24#define METAFILE_VERSION    1

25#define ALDUSKEY        0x9AC6CDD7

26#define ALDUSMFHEADERSIZE   22  // Avoid sizeof is struct alignment >1

27 

28// Alignment types

29typedef enum {

30    AlignNone = -1,

31    AlignDefault,

32    AlignTopLeft,

33    AlignTopCentre,

34    AlignTopRight,

35    AlignMiddleLeft,

36    AlignMiddleCentre,

37    AlignMiddleRight,

38    AlignBottomLeft,

39    AlignBottomCentre,

40    AlignBottomRight,

41    AlignStretch,

42    AlignFit,

43} METAALIGNMENT;

44 

45class CMetaFile : public CMetaFileDC {

46    DECLARE_SERIAL(CMetaFile)

47public:

48    static bool IsMetafile(CFile* pFile);

49    CMetaFile();

50    ~CMetaFile();

51    void Display(CDC* pDC, CRect& r, METAALIGNMENT align = AlignDefault);

52    BOOL Read(CFile *file);

53    BOOL Read(LPCTSTR lpszFileName);

54    void Serialize(CArchive& archive);

55    void Clear();

56    bool IsEmpty();

57private:

58    void FitPicture(CRect& r, CSize& size, METAALIGNMENT align);

59    ALDUSMFHEADER m_aldusMFHeader;

60    HENHMETAFILE m_emf;

61};

62 

63#endif  // __CMETAFILE_H__来源http://code.it168.com/v/bianjikongjianvcyuandaima:metafile_source/meta.h