How to change a screens resolution

[Buy2easy.com]

O.K. here is what i have. I have a program that runs great on a screen resolution that is higher but does not need to be on a resolution of 680 x 320. Is there any way that i can change a computers resolution when a program starts but when the program ends change it back to its normal resolution. If so, how?

THANKS!!

[Buy2easy.com]

Could someone convert the following into something that i can use in .net i need to be able to change the screen resolution but this code is in vb 6 and some of the things make errors and i can not figure out why? Thanks a lot guys!

Private Declare Function EnumDisplaySettings Lib "user32" _
Alias "EnumDisplaySettingsA" (ByVal lpszDeviceName As _
Long, ByVal iModeNum As Long, lpDevMode As Any) As Boolean
Private Declare Function ChangeDisplaySettings Lib "user32" _
Alias "ChangeDisplaySettingsA" (lpDevMode As Any, ByVal _
dwflags As Long) As Long
Private Const CCDEVICENAME = 32
Private Const CCFORMNAME = 32
Private Const DM_PELSWIDTH = &H80000
Private Const DM_PELSHEIGHT = &H100000
Private Type DEVMODE
dmDeviceName As String * CCDEVICENAME
dmSpecVersion As Integer
dmDriverVersion As Integer
dmSize As Integer
dmDriverExtra As Integer
dmFields As Long
dmOrientation As Integer
dmPaperSize As Integer
dmPaperLength As Integer
dmPaperWidth As Integer
dmScale As Integer
dmCopies As Integer
dmDefaultSource As Integer
dmPrintQuality As Integer
dmColor As Integer
dmDuplex As Integer
dmYResolution As Integer
dmTTOption As Integer
dmCollate As Integer
dmFormName As String * CCFORMNAME
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
End Type
Sub ChangeRes(iWidth As Single, iHeight As Single)
Dim lReturn As Boolean
Dim iVal As Long
Dim DevM As DEVMODE

iVal = 0
Do
lReturn = EnumDisplaySettings(0&, iVal, DevM)
iVal = iVal + 1
Loop Until (lReturn = False)
DevM.dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT
DevM.dmPelsWidth = iWidth
DevM.dmPelsHeight = iHeight
iVal = ChangeDisplaySettings(DevM, 0)
End Sub