C# Signature:

[DllImport("user32.dll")]
static extern IntPtr GetFocus();

VB Signature:

<DllImport("user32.dll", SetLastError:=True)> _
Private Shared Function GetFocus() As IntPtr
End Function

User-Defined Types:

None.

Notes:

None.

Tips & Tricks:

Method for getting WinForm Control associated with the focused window:

public static Control GetFocusedControl()
{
    Control focusedControl = null;
    // To get hold of the focused control:
    IntPtr focusedHandle = GetFocus();
    if(focusedHandle != IntPtr.Zero)
    {
        // Note that if the focused Control is not a .Net control, then this will return null.
        focusedControl = Control.FromHandle(focusedHandle);
    }
    return focusedControl;
}

Sample Code:

IntPtr ptrFocus = GetFocus();

if (ptrFocus != IntPtr.Zero)

{

  //ptrFocus is the object who has focus

}

Please add some!

Alternative Managed API:

Do you know one? Please contribute it!

public static IntPtr GetFocus() {
    foreach (Form f in Application.OpenForms) {
        if (f.ContainsFocus) return f.Handle;
    }
    return IntPtr.Zero;
}

by Attilio Pavone, 30/06/2010 www.utillyty.eu

Please edit this page!

Do you have...

• helpful tips or sample code to share for using this API in managed code?
• corrections to the existing content?
• variations of the signature you want to share?
• additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).