/// A pointer to the WINDOWPLACEMENT structure that receives the show state and position information.

/// 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" _

           ByRef lpwndpl As WINDOWPLACEMENT) As Long

WINDOWPLACEMENT

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

    private struct WINDOWPLACEMENT

       WINDOWPLACEMENT placement = new WINDOWPLACEMENT();

       GetWindowPlacement(this.Handle, ref placement);

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

    Private Structure WINDOWPLACEMENT

        Dim wpTemp As WINDOWPLACEMENT

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

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

/// A pointer to a WINDOWPLACEMENT structure that specifies the new show state and window positions.

/// Before calling SetWindowPlacement, set the length member of the WINDOWPLACEMENT structure to sizeof(WINDOWPLACEMENT). SetWindowPlacement fails if the length member is not set correctly.

static extern bool SetWindowPlacement(IntPtr hWnd,

   [In] ref WINDOWPLACEMENT lpwndpl);

Public Shared Function SetWindowPlacement( _

     ByRef lpwndpl As WINDOWPLACEMENT) As Boolean

Public Declare Function SetWindowPlacement Lib "user32" _

          ByRef lpwndpl As WINDOWPLACEMENT) As Long

WINDOWPLACEMENT.

static extern bool SetWindowPlacement(IntPtr hWnd,

[In] ref WINDOWPLACEMENT lpwndpl);

  private struct WINDOWPLACEMENT

WINDOWPLACEMENT param = new WINDOWPLACEMENT();

param.length = Marshal.SizeOf(typeof(WINDOWPLACEMENT));

SetWindowPlacement(this.Handle, ref param);

internal struct WINDOWPLACEMENT

     /// 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.

     public static WINDOWPLACEMENT Default

             WINDOWPLACEMENT result = new WINDOWPLACEMENT();

Private Structure WINDOWPLACEMENT

Public Type WINDOWPLACEMENT

Use with GetWindowPlacement and SetWindowPlacement