: Hi all : : I am new to VB programming and need some help. : I want to know if bit manipulation is possible in VB as in C++. : : For example to see if a bit is a 1 or a 0 in a given word. : Also is there a function to convert a hex value to an int/float value. : :
Integer = CInt("&H" & "67FF") Just prefix a hexidecimal sequence with &H and use a conversion function (like CInt).
To check if a certain bit is set, you need to check by using powers of 2.
For example, the first bit set is 2^0. The second bit set is 2^1.
You can check any UNSIGNED number like this: If (Number And 2 ^ (BitNumber - 1)) Then MsgBox "Bit " & BitNumber & " is set (1)" End If
You will, however, need to make an exception for the signed bits (since only the Byte is unsigned in VB). Basically, checking if a number is negative will return the sign bit.
: : Hi all : : : : I am new to VB programming and need some help. : : I want to know if bit manipulation is possible in VB as in C++. : : : : For example to see if a bit is a 1 or a 0 in a given word. : : Also is there a function to convert a hex value to an int/float value. : : : : : : Integer = CInt("&H" & "67FF") : Just prefix a hexidecimal sequence with &H and use a conversion function (like CInt). : : To check if a certain bit is set, you need to check by using powers of 2. : : For example, the first bit set is 2^0. The second bit set is 2^1. : : You can check any UNSIGNED number like this: : If (Number And 2 ^ (BitNumber - 1)) Then : MsgBox "Bit " & BitNumber & " is set (1)" : End If : : You will, however, need to make an exception for the signed bits (since only the Byte is unsigned in VB). : Basically, checking if a number is negative will return the sign bit. : : : : Greets... : Richard : : Thanx Richard
Comments
:
: I am new to VB programming and need some help.
: I want to know if bit manipulation is possible in VB as in C++.
:
: For example to see if a bit is a 1 or a 0 in a given word.
: Also is there a function to convert a hex value to an int/float value.
:
:
Integer = CInt("&H" & "67FF")
Just prefix a hexidecimal sequence with &H and use a conversion function (like CInt).
To check if a certain bit is set, you need to check by using powers of 2.
For example, the first bit set is 2^0. The second bit set is 2^1.
You can check any UNSIGNED number like this:
If (Number And 2 ^ (BitNumber - 1)) Then
MsgBox "Bit " & BitNumber & " is set (1)"
End If
You will, however, need to make an exception for the signed bits (since only the Byte is unsigned in VB).
Basically, checking if a number is negative will return the sign bit.
Greets...
Richard
: :
: : I am new to VB programming and need some help.
: : I want to know if bit manipulation is possible in VB as in C++.
: :
: : For example to see if a bit is a 1 or a 0 in a given word.
: : Also is there a function to convert a hex value to an int/float value.
: :
: :
:
: Integer = CInt("&H" & "67FF")
: Just prefix a hexidecimal sequence with &H and use a conversion function (like CInt).
:
: To check if a certain bit is set, you need to check by using powers of 2.
:
: For example, the first bit set is 2^0. The second bit set is 2^1.
:
: You can check any UNSIGNED number like this:
: If (Number And 2 ^ (BitNumber - 1)) Then
: MsgBox "Bit " & BitNumber & " is set (1)"
: End If
:
: You will, however, need to make an exception for the signed bits (since only the Byte is unsigned in VB).
: Basically, checking if a number is negative will return the sign bit.
:
:
:
: Greets...
: Richard
:
:
Thanx Richard
I entered your code and it worked fine.
Again thank you.
Regards
Wayne