private static void MoveNewPrimary(Screen newPrimary, Screen oldPrimary)
{
WinApi.DEVMODE ndm4 = NewDevMode();
ndm4.dmFields = WinApi.DEVMODE_Flags.DM_POSITION;
ndm4.dmPosition.x = 0;
ndm4.dmPosition.y = 0;
WinApi.User_32.ChangeDisplaySettingsEx(newPrimary.ScreenDevice.DeviceName, ref ndm4, (IntPtr)null, (int)WinApi.DeviceFlags.CDS_SET_PRIMARY | (int)WinApi.DeviceFlags.CDS_UPDATEREGISTRY | (int)WinApi.DeviceFlags.CDS_NORESET, IntPtr.Zero);
}
private static void CommitChange(Screen newPrimary, Screen oldPrimary)
{
WinApi.DEVMODE ndm5 = NewDevMode();
WinApi.User_32.ChangeDisplaySettingsEx(oldPrimary.ScreenDevice.DeviceName, ref ndm5, (IntPtr)null, (int)WinApi.DeviceFlags.CDS_UPDATEREGISTRY, (IntPtr)null);
WinApi.DEVMODE ndm6 = NewDevMode();
WinApi.User_32.ChangeDisplaySettingsEx(newPrimary.ScreenDevice.DeviceName, ref ndm6, (IntPtr)null, (int)WinApi.DeviceFlags.CDS_SET_PRIMARY | (int)WinApi.DeviceFlags.CDS_UPDATEREGISTRY, IntPtr.Zero);
}
private static void SwitchPrimaryScreen(Screen newPrimary, Screen oldPrimary)
{
MoveOldPrimary(newPrimary, oldPrimary);
MoveNewPrimary(newPrimary, oldPrimary);
CommitChange(newPrimary, oldPrimary);
}