devxlogo

Disable the Standard Window Close (X) Button

Why Trust Us

This code disables the standard Window Close (X) button on the upper right corner of Windows forms:

Private Const SC_CLOSE As Integer = &HF060Private Const MF_GRAYED As Integer = &H1 Private Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As Long, ByVal bRevert As Long) As LongPrivate Declare Function EnableMenuItem Lib "user32" (ByVal hMenu As Long, ByVal wIDEnableItem As Long, ByVal wEnable As Long) As Long  Private  Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs)   EnableMenuItem(GetSystemMenu(Me.Handle, False), SC_CLOSE, MF_GRAYED)End Sub

Charlie has over a decade of experience in website administration and technology management. As the site admin, he oversees all technical aspects of running a high-traffic online platform, ensuring optimal performance, security, and user experience.

See also  Five Early Architecture Decisions That Quietly Get Expensive
Disclosure

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

Show More