vc里的数据类型解释

BOOL A Boolean value.

BSTR A 32-bit character pointer.

BYTE An 8-bit integer that is not signed.

COLORREF A 32-bit value used as a color value.

DWORD A 32-bit unsigned integer or the address of a segment and its associated offset.

LONG A 32-bit signed integer.

LPARAM A 32-bit value passed as a parameter to a window procedure or callback function.

LPCSTR A 32-bit pointer to a constant character string.

LPSTR A 32-bit pointer to a character string.

LPCTSTR A 32-bit pointer to a constant character string that is portable for Unicode and DBCS.

LPTSTR A 32-bit pointer to a character string that is portable for Unicode and DBCS.

LPVOID A 32-bit pointer to an unspecified type.

LRESULT A 32-bit value returned from a window procedure or callback function.

UINT A 16-bit unsigned integer on Windows versions 3.0 and 3.1; a 32-bit unsigned integer on Win32.

WNDPROC A 32-bit pointer to a window procedure.

WORD A 16-bit unsigned integer.

WPARAM A value passed as a parameter to a window procedure or callback function: 16 bits on Windows versions 3.0 and 3.1; 32 bits on Win32.
Data types unique to the Microsoft Foundation Class Library include the following:

POSITION A value used to denote the position of an element in a collection; used by MFC collection classes.

LPCRECT A 32-bit pointer to a constant (nonmodifiable) RECT structure.