AutoCAD .NET :: Can't Capture Key Events In Windows Form

I have created a basic add-on that shows a modal windows form. The only issue I am running into is that I am completely unable to capture any key events in the form. I just want to make the escape key close my form, but I'm having no luck. Here is my basic setup:

 <CommandMethod("myCommand")> _Public Sub myCommand() Dim myForm As Form1 = New Form1Autodesk. AutoCAD. Application Services. Application.ShowModalDialog(myForm)End Sub

Then in the form code, I have this, for testing purposes:

Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress MsgBox("keypress") End Sub
 
I've also tried KeyUp and KeyDown. Key presses are working inside the form (I can use the keyboard to select an item in a combobox, for example), but I never hit the event handlers.