Calling Win32 API Functions in VB 2010 - Listing 2

Public Class MouseButtons
    Dim ReversedButtons As Integer = 1
    Dim StandardButtons As Integer = 0
    Dim SwapResult As Integer = 0

    Private Sub btnSwap_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles btnSwap.Click
        SwapResult = Win32API.SwapMouseButton(ReversedButtons)
        If (SwapResult = 0) Then
            MessageBox.Show("Mouse buttons are reversed")
        Else
            MessageBox.Show("Mouse buttons were reversed and are unchanged")
        End If

    End Sub

    Private Sub btnReset_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles btnReset.Click
        SwapResult = Win32API.SwapMouseButton(StandardButtons)
        If (SwapResult = 0) Then
            MessageBox.Show("Mouse buttons were standard and are unchanged")
        Else
            MessageBox.Show("Mouse buttons are now standard")
        End If
    End Sub
End Class

Partial Public Class Win32API
    Declare Function SwapMouseButton Lib "user32.dll" _
        Alias "SwapMouseButton" (ByVal Swap As Integer) As Integer
End Class

About the Author

Joe Kunk is a Microsoft MVP in Visual Basic, three-time president of the Greater Lansing User Group for .NET, and developer for Dart Container Corporation of Mason, Michigan. He's been developing software for over 30 years and has worked in the education, government, financial and manufacturing industries. Kunk's co-authored the book "Professional DevExpress ASP.NET Controls" (Wrox Programmer to Programmer, 2009). He can be reached via email at [email protected].

comments powered by Disqus

Featured

  • Python in VS Code Adds Data Viewer for Debugging

    The January 2021 update to the Python Extension for Visual Studio Code is out with a short list of new features headed by a data viewer used while debugging.

  • GitHub Ships Enterprise Server 3.0 Release Candidate

    It's described as "the biggest ever change to Enterprise Server," with improvements to Actions, Packages, mobile, security and more.

  • Attacks on .NET Apps Grow in Number, Severity, Says Security Firm

    .NET apps were found to have more serious vulnerabilities and suffer more attacks last year, according to data gathered by Contrast Labs.

  • Microsoft Opens Up Old Win32 APIs to C# and Rust, More Languages to Come

    Microsoft is opening up old Win32 APIs long used for 32-bit Windows programming, letting coders use languages of their choice instead of the default C/C++ option.

Upcoming Events