dcsimg
Login | Register   
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: VB7
Expertise: Advanced
May 19, 2003

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


CreateFileAssociation - Creating a new file association

<System.Runtime.InteropServices.DllImport("shell32.dll")> Shared Sub _
    SHChangeNotify(ByVal wEventId As Integer, ByVal uFlags As Integer, _
    ByVal dwItem1 As Integer, ByVal dwItem2 As Integer)
End Sub


' Create the new file association
'
' Extension is the extension to be registered (eg ".cad"
' ClassName is the name of the associated class (eg "CADDoc")
' Description is the textual description (eg "CAD Document"
' ExeProgram is the app that manages that extension (eg "c:\Cad\MyCad.exe")

Function CreateFileAssociation(ByVal extension As String, _
    ByVal className As String, ByVal description As String, _
    ByVal exeProgram As String) As Boolean
    Const SHCNE_ASSOCCHANGED = &H8000000
    Const SHCNF_IDLIST = 0

    ' ensure that there is a leading dot
    If extension.Substring(0, 1) <> "." Then
        extension = "." & extension
    End If

    Dim key1, key2, key3 As Microsoft.Win32.RegistryKey
    Try
        ' create a value for this key that contains the classname
        key1 = Microsoft.Win32.Registry.ClassesRoot.CreateSubKey(extension)
        key1.SetValue("", className)
        ' create a new key for the Class name
        key2 = Microsoft.Win32.Registry.ClassesRoot.CreateSubKey(className)
        key2.SetValue("", description)
        ' associate the program to open the files with this extension
        key3 = Microsoft.Win32.Registry.ClassesRoot.CreateSubKey(className & _
            "\Shell\Open\Command")
        key3.SetValue("", exeProgram & " ""%1""")
    Catch e As Exception
        Return False
    Finally
        If Not key1 Is Nothing Then key1.Close()
        If Not key2 Is Nothing Then key2.Close()
        If Not key3 Is Nothing Then key3.Close()
    End Try

    ' notify Windows that file associations have changed
    SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, 0, 0)
    Return True
End Function
Marco Bellinaso
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date