public void GetFormState(Form form)
{
WINDOWPLACEMENT wp = new WINDOWPLACEMENT();
wp.length = Marshal.SizeOf(wp);
if (NativeMethods.GetWindowPlacement(form.Handle, ref wp))
{
Location = wp.rcNormalPosition.Location;
Size = wp.rcNormalPosition.Size;
IsMaximized = wp.showCmd == WindowShowStyle.Maximize;
}
}
public static void RestoreWindow(IntPtr handle)
{
WINDOWPLACEMENT wp = new WINDOWPLACEMENT();
wp.length = Marshal.SizeOf(wp);
GetWindowPlacement(handle, ref wp);
if (wp.flags == (int)WindowPlacementFlags.WPF_RESTORETOMAXIMIZED)
{
wp.showCmd = WindowShowStyle.ShowMaximized;
}
else
{
wp.showCmd = WindowShowStyle.Restore;
}
SetWindowPlacement(handle, ref wp);
}
public static bool IsWindowMaximized(IntPtr handle)
{
WINDOWPLACEMENT wp = new WINDOWPLACEMENT();
wp.length = Marshal.SizeOf(wp);
GetWindowPlacement(handle, ref wp);
return wp.showCmd == WindowShowStyle.Maximize;
}
public static extern bool GetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);
public static extern bool SetWindowPlacement(IntPtr hWnd, [In] ref WINDOWPLACEMENT lpwndpl);
public static void RestoreWindow(IntPtr handle)
{
WINDOWPLACEMENT wp = new WINDOWPLACEMENT();
GetWindowPlacement(handle, ref wp);
if (wp.flags == (int)WindowPlacementFlags.WPF_RESTORETOMAXIMIZED)
{
wp.showCmd = (int)SHOWWINDOW.SW_SHOWMAXIMIZED;
}
else
{
wp.showCmd = (int)SHOWWINDOW.SW_RESTORE;
}
SetWindowPlacement(handle, ref wp);
}
public static bool IsWindowMaximized(IntPtr handle)
{
WINDOWPLACEMENT wp = new WINDOWPLACEMENT();
GetWindowPlacement(handle, ref wp);
return wp.showCmd == (int)SHOWWINDOW.SW_MAXIMIZE;
}
