Chilkat ActiveX Object Creation in VB6 (Visual Basic 6.0)

Most ActiveX objects, including Chilkat, provide what is called a “dual interface”.   A dual interface allows for programs to bind at compile-time (early binding) or at runtime (late binding). The type of binding is determined by how the object is created.  For example, compile-time binding in VB6 looks like this: …

VB6 Error — “TYPE MISMATCH (ERROR CODE 13)” w/ IMAP Search method

This happens if the Chilkat ActiveX objects are dragged and dropped onto your formvia the “Project–>Components” menu. Instead, add a reference to the objects via the “Project–>References” menu. Instances of the object should be created dynamically. For example: Dim imap as ChilkatImap Set imap = New ChilkatImap

VB6 – “TYPE MISMATCH (ERROR CODE 13)” or “Invalid Use of New Keyword”

This error occurs if you incorrectly add the ActiveX component to your VB6 project.  Follow these rules: 1) If the ActiveX objects are dynamically created (they are not dragged and dropped onto a form from the palette), then add a Reference to the ActiveX.  You should NOT see the icons …

How to use an ActiveX in VB6

There are two ways to reference an ActiveX in Visual Basic 6.0.  The first is to select “Project–>References” from the VB6 menu.  The second way is to select “Project–>Components…” from the VB6 menu. Important:  You should do one or the other, but not both. Which do you choose?   Use “Project–>References” …

VB6 – SHA-1 Hash and Base64 Encode

Private Sub Command1_Click() Dim crypt As New ChilkatCrypt2 success = crypt.UnlockComponent(“30-day trial”) If (success = 0) Then MsgBox crypt.LastErrorText Exit Sub End If Dim plainText As String plainText = “To be SHA-1 hashed…” crypt.EncodingMode = “base64” ‘ Hash the string and base64-encode in 1-Step Text1.Text = crypt.HashStringENC(plainText) ‘ Now do …

VB6 Variant vs Byte Array

In Visual Basic 6.0, a Variant containing a byte array is different than a byte array. For example, examine this code: ‘ Assume mime is a ChilkatMime object… Set mimePart = mime.GetPart(1) thefile = FreeFile() ‘Get the attachment filename FileName = mimePart.FileName ‘Get the attachment Dim mBody As Variant mBody …