/// Before calling GetWindowPlacement, set the length member to sizeof(WINDOWPLACEMENT). GetWindowPlacement fails if lpwndpl-> length is not set correctly.

internal static extern bool GetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);

Private Shared Function GetWindowPlacement(ByVal hWnd As IntPtr, ByRef lpwndpl As WINDOWPLACEMENT) As Boolean

Public Declare Function GetWindowPlacement Lib "user32" _

    static extern bool GetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);

       GetWindowPlacement(this.Handle, ref placement);

    Private Declare Function GetWindowPlacement Lib "user32" (ByVal hwnd As IntPtr, ByRef lpwndpl As WINDOWPLACEMENT) As Integer

        intRet = GetWindowPlacement(Me.Handle.ToInt32, wpTemp)

Use GetWindowPlacement Win32 method for a more detailed set of info such as Z-Order.

     /// The length of the structure, in bytes. Before calling the GetWindowPlacement or SetWindowPlacement functions, set this member to sizeof(WINDOWPLACEMENT).

     /// GetWindowPlacement and SetWindowPlacement fail if this member is not set correctly.

Use with GetWindowPlacement and SetWindowPlacement