SetWindowPos/MoveWindow persist issue

I am using SetWindowPos and MoveWindow to resize and center windows. It works fine, but on several windows like Windows Media Player or Control Panel, when you close the window and开发者_如何学运维 open it again, the new resizing/moving is not reflected. When I resize manually, the changes are reflected the next time I open the window. Even if I call UpdateWindow, the changes don't reflect. Is there something I need to send the window so the changes get saved? Would RedrawWindow help? Thanks?

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You should be using the GetWindowPlacement and SetWindowPlacement functions instead to retrieve and alter the restored, minimized, and maximized positions of a window. This ensures that the window sizes are properly saved by the application so that they can be restored on the next launch.

Since you're using C#, you'll need to P/Invoke these functions from the Windows API:

const int SW_HIDE = 0;
const int SW_SHOWNORMAL = 1;
const int SW_SHOWMINIMIZED = 2;
const int SW_SHOWMAXIMIZED = 3;

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool GetWindowPlacement(IntPtr hWnd, out WINDOWPLACEMENT lpwndpl);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool SetWindowPlacement(IntPtr hWnd, [In] ref WINDOWPLACEMENT lpwndpl);

[StructLayout(LayoutKind.Sequential)]
struct RECT
{
    public int left;
    public int top;
    public int right;
    public int bottom;
}

[StructLayout(LayoutKind.Sequential)]
struct WINDOWPLACEMENT
{
    public int length;
    public int flags;
    public int showCmd;
    public Point ptMinPosition;
    public Point ptMaxPosition;
    public RECT rcNormalPosition;
}