Commonly used Windows SDK and MFC data types are as follows:
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- BoolA boolean value.
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- BSTRA 32-bit character pointer.
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- ByteAn 8-bit integer that is not signed.
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- ColorrefA 32-bit value used as a color value.
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- DWORDA 32-bit unsigned integer or the address of a segment and its associated offset.
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- LongA 32-bit signed integer.
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- LparamA 32-bit value passed as a parameter to a window procedure or callback function.
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- LpcstrA 32-bit pointer to a constant character string.
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- LpstrA 32-bit pointer to a character string.
- LpctstrA 32-bit pointer to a constant character string that is portable for Unicode and DBCS.
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- LptstrA 32-bit pointer to a character string that is portable for Unicode and DBCS.
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- LpvoidA 32-bit pointer to an unspecified type.
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- LresultA 32-bit value returned from a window procedure or callback function.
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- UintA 16-bit unsigned integer on Windows versions 3.0 and 3.1; a 32-bit unsigned integer on win32.
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- WndprocA 32-bit pointer to a window procedure.
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- WordA 16-bit unsigned integer.
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- 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)RectStructure.
