Set the screen resolution

Question

Hi guys. Can somebody please tell me,how can I change the Screen resolution from my program? Thank you very much.

kovan · Answer

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct DEVMODE { // specify the size of the string arrays to 32 public const int SA_SIZE = 32; // struct (class) members [MarshalAs(UnmanagedType.ByValTStr, SizeConst=SA_SIZE)] public string lpzDeviceName; public short iSpecVersion; public short iDriverVersion; public short iSize; public short iDriverExtra; public int iFields; public short iOrientation; public short iPaperSize; public short iPaperLength; public short iPaperWidth; public short iScale; public short iCopies; public short iDefaultSource; public short iPrintQuality; public short iColor; public short iDuplex; public short iYRes; public short iTTOption; public short iCollate; // specify marshalling attrib appropriately for this type [MarshalAs(UnmanagedType.ByValTStr, SizeConst=SA_SIZE)] public string lpszFormName; public short iLogPixels; public int iBitsPerPixel; public int lPelsWidth; public int lPelsHeight; public int lDisplayFlags; public int lDisplayFreq; public int lICMMethod; public int lICMIntent; public int lMediaType; public int lDitherType; public int lReserved1; public int lReserved2; public int lPanWidth; public int lPanHeight; } class LibWrapper { // do a little P/Invoke stuff here... // specify the dll containing the desired function and // the fact that we want to use the default character set for the call [DllImport("user32.dll", CharSet=CharSet.Auto)] public static extern bool EnumDisplaySettings(string lpszDeviceName, int lModeNum, ref DEVMODE lpdm); [DllImport("user32.dll", CharSet=CharSet.Auto)] public static extern int ChangeDisplaySettings([In] ref DEVMODE lpdm, int iFlags); } [STAThread] static void Main(string[] args) { DEVMODE dm = new DEVMODE(); dm.iSize = (short)Marshal.SizeOf(typeof(DEVMODE)); int lMode = -1; bool b = LibWrapper.EnumDisplaySettings(null, lMode, ref dm); }

dejvi79 · Answer

Not GET ! I want to SET the resolution (lets say from 800/600 to 1024/768 ) !. Thanks.

morpheus2matrix · Answer

Screen.GetBounds(this).Height Screen.GetBounds(this).Width

Set the screen resolution

Answers (3)