创建
有五个重载函数，分别如下:
- BOOL Create(int cx, int cy, UINT nFlags, int nInitial, int nGrow);
- BOOL Create(UINT nBitmapID, int cx, int nGrow, COLORREF crMask);
- BOOL Create(LPCTSTR lpszBitmapID, int cx, int nGrow, COLORREF crMask);
- BOOL Create(CImageList& imagelist1, int nImage1, CImageList& imagelist2,
- int nImage2, int dx, int dy);
- BOOL Create(CImageList* pImageList);
