This method converts the type of VARIANT value in this COleVariant object to the type specified by vartype.
| Header file: | Afxdisp.h | 
| Platforms: | H/PC 2.0, H/PC Pro | 
| Windows CE versions: | 2.0 and later | 
| Complete documentation: | Visual C++ documentation | 
void ChangeType( VARTYPE vartype, LPVARIANT pSrc = NULL );