public static bool ChangeResolutionEx(ResolutionModeWrapper resolutionMode, string lpszDeviceName)
{
Devmode mode = new Devmode();
if (GetCurrentResolutionSettings(out mode, lpszDeviceName))
{
mode.dmPelsWidth = resolutionMode.DmPelsWidth;
mode.dmPelsHeight = resolutionMode.DmPelsHeight;
mode.dmBitsPerPel = resolutionMode.DmBitsPerPel;
mode.dmDisplayFrequency = resolutionMode.DmDisplayFrequency;
mode.dmDisplayFixedOutput = resolutionMode.DmDisplayFixedOutput;
DispChange returnValue = (DispChange)ChangeDisplaySettingsEx(lpszDeviceName, ref mode, IntPtr.Zero, (ChangeDisplaySettingsFlags.CdsUpdateregistry | ChangeDisplaySettingsFlags.CdsNoreset), IntPtr.Zero);
ChangeDisplaySettingsEx(null, IntPtr.Zero, (IntPtr)null, ChangeDisplaySettingsFlags.CdsNone, (IntPtr)null);
if (DispChange.DispChangeSuccessful == returnValue)
{
return(true);
}
else
{
MessageBox.Show("Changing the resolution failed: " + Enum.GetName(typeof(DispChange), returnValue));
}
}
return(false);
}
/// <summary>
/// <para>Updates the screen's settings</para>
/// </summary>
/// <param name="screen"></param>
/// <returns></returns>
public static bool UpdateScreen(ScreenEx screen)
{
ScreenSettingsDevMode devMode = screen.ToDEVMODE();
DispChange result = ChangeDisplaySettingsEx(screen.Name, ref devMode, CDS.RESET | CDS.UPDATEREGISTRY);
if (result >= 0)
{
return(true);
}
else
{
return(false);
}
}
public static bool ChangeResolution(ResolutionModeWrapper resolutionMode)
{
Devmode mode = new Devmode();
if (GetCurrentResolutionSettings(out mode, null))
{
mode.dmPelsWidth = resolutionMode.DmPelsWidth;
mode.dmPelsHeight = resolutionMode.DmPelsHeight;
mode.dmBitsPerPel = resolutionMode.DmBitsPerPel;
mode.dmDisplayFrequency = resolutionMode.DmDisplayFrequency;
mode.dmDisplayFixedOutput = resolutionMode.DmDisplayFixedOutput;
DispChange returnValue = (DispChange)ChangeDisplaySettings(ref mode, 0);
if (DispChange.DispChangeSuccessful == returnValue)
{
return(true);
}
else
{
MessageBox.Show("Changing the resolution failed: " + Enum.GetName(typeof(DispChange), returnValue));
}
}
return(false);
}
