QuickHash Library

Type Library

QHASH_BlockHexDigest

Return value

Parameters

nAlgID

    [in] The ID of the hash/checksum algorithm selected for calculations. For example, nAlgID has to be set to SHA1_ALGID when you need to calculate the digest using SHA-1 hash algorithm.

    Note. All supported hash/checksum algorithms with their corresponding IDs are specified in the Predefined Constants List.

 pSrc

    [in] A continuous memory block for which to calculate the message digest/checksum.

nSrcLength

    [in] Length in bytes of the memory block. 

bUpper

    [in] Uppercase flag. If bUpper is False, the received message digest/checksum represents a lowercase string, otherwise it represents an uppercase string.

Remarks

Calculates the message digest/checksum for a continuous memory block. The digest/checksum is returned as a hexadecimal string.

Note. If the result is an empty string call QHASH_GetLastError function for the error code.

VB Example

Private Sub MyButton_Click()

    Dim MyStrData As String

    MyStrData = "Hello World!"

    Dim nLen As Long

    nLen = Len(MyStrData)

    'Convert the string to byte array

    Dim MyBinData() As Byte

    ReDim MyBinData(1 To nLen)

    For i = 1 To nLen

        MyBinData(i) = Asc(Mid(MyStrData, i, 1))

    Next i

    'Calculate and Show the digest in hexadecimal representation

    MsgBox QHASH_BlockHexDigest( MD5_ALGID, MyBinData(1), nLen, True )

End Sub

Type Library Overview   |   Type Library Functions   |   Useful Links   |   HashCalc

See Also    QHASH_BlockDigest, QHASH_StringHexDigest, QHASH_FileHexDigest, QHASH_GetLastError