HIBYTE


Gets the second byte of the operand.

Syntax:
#define Hibyte( expr ) ((Cast(Uinteger, expr) and &h0000FF00) shr 8)

Usage:
result = Hibyte( expr )

Parameters:
expr
A numeric expression, converted to an Uinteger value.

Return Value:
Returns the value of the high byte of the low 16bit word of expr.

Description:
This macro converts the numeric expression expr to an Uinteger value, then expands to an Uinteger representing the value of its second byte - that is the most-significant (high) byte of the least-significant (low) 16bit word of expr.

Examples:
Dim N As UInteger

'Note there are 16 bits
N = &b1010101110000001
Print "N is                                       "; N
Print "The binary representation of N is          "; Bin(N)
Print "The most significant byte (MSB) of N is    "; HiByte(N)
Print "The least significant byte (LSB) of N is   "; LoByte(N)
Print "The binary representation of the MSB is    "; Bin(HiByte(N))
Print "The binary representation of the LSB is    "; Bin(LoByte(N))
Sleep


The output would look like:
N Is                                       43905
The Binary representation of N Is          1010101110000001
The most significant Byte (MSB) of N Is    171
The least significant Byte (LSB) of N Is   129
The Binary representation of the MSB Is    10101011
The Binary representation of the LSB Is    10000001


Dialect Differences:
Differences from QB:
See also:
Back to Bit Manipulation
Valid XHTML :: Valid CSS: :: Powered by WikkaWiki



sf.net phatcode