The difference between BOOL and bool

BOOL is a standard C + + data type

BOOL is a standard C + + data type, and the value is true and false. A single byte, depending on the compiler, if several bool objects are listed together, each may take up a bit.

BOOL is a Microsoft-defined typedef int BOOL

BOOL is a Microsoft-defined typedef int BOOL. Unlike bool, it is a three-valued logic, True/false/error, with the return value of >0 as an integer of true,0 for False,-1 ERROR. 

One, 1. Different Types

BOOL is int type 
bool is Boolean type 

2. Different lengths

BOOL has only one byte 
bool length depending on the actual environment, generally considered to be 4 bytes 

3, take the value is different

BOOL evaluates to FALSE and true, the difference between 0 and 1 
BOOL evaluates to FALSE and true, and is the difference between 0 and non 0 

Two:

BOOL is a standard C + + data type, and the value is true and false. For a single byte,
Depending on the compiler, if several bool objects are listed together, each may take up a bit.

BOOL is a Microsoft-defined typedef int BOOL. Unlike bool, it is a three-valued logic,
True/false/error, the return value of >0 integer is true,0 for false,-1 ERROR.
Many functions that return a value of bool in the WIN32 API are three-valued logic. such as GetMessage (). Three:

The difference between big bool and small bool:
1. Different types
BOOL is int type
BOOL is a Boolean type
2. Different lengths
BOOL has only one byte
bool length depending on the actual environment, generally considered to be 4 bytes
3, take the value is different
BOOL evaluates to FALSE and true, is the difference between 0 and 1
BOOL evaluates to FALSE and true, is the difference between 0 and non-0
4. Examples
BOOL x=3; Alarm
BOOL X=1; That's right
BOOL x=3; That's right
BOOL x=3.3; Alert windows for the underlying variables defined for compatibility issues.

typedef unsigned long DWORD;
typedef int BOOL;
typedef unsigned char BYTE;
typedef unsigned short WORD;
typedef float FLOAT;
typedef FLOAT *pfloat;
typedef BOOL near *pbool;
typedef BOOL FAR *lpbool;
typedef BYTE near *pbyte;
typedef BYTE FAR *lpbyte;
typedef int near *pint;
typedef int FAR *lpint;