windows程序的界面设计，windows程序设计教程26

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Commonly used Windows SDK and MFC data types are as follows:

BOOLA Boolean value.

BSTRA 32-bit character pointer.

BYTEAn 8-bit integer that is not signed.

COLORREFA 32-bit value used as a color value.

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

LONGA 32-bit signed integer.

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

LPCSTRA 32-bit pointer to a constant character string.

LPSTRA 32-bit pointer to a character string.

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

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

LPVOIDA 32-bit pointer to an unspecified type.

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

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

WNDPROCA 32-bit pointer to a window procedure.

WORDA 16-bit unsigned integer.

WPARAMA 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:

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

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

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