OptionExplicit

PublicDeclareFunctionChangeDisplaySettingsLib"user32.dll"Alias"ChangeDisplaySettingsA"

(ByReflpDevModeAsDEVMODE,ByValdwFlagsAsLong)AsLong
PublicDeclareFunctionEnumDisplaySettingsLib"user32.dll"Alias"EnumDisplaySettingsA"(ByVal

lpszDeviceNameAsString,ByValiModeNumAsLong,ByReflpDevModeAsDEVMODE)AsLong

ConstDM_PELSHEIGHTAsLong=&H100000
ConstDM_PELSWIDTHAsLong=&H80000
ConstDM_BITSPERPELAsLong=&H40000
ConstDM_DISPLAYFREQUENCYAsLong=&H400000

ConstCCHDEVICENAMEAsLong=32
ConstCCHFORMNAMEAsLong=32
ConstCDS_TEST=&H4

EnumDisplaySettings0&,0&,NewDevmode

WithNewDevmode
.dmFields=DM_PELSHEIGHTOrDM_PELSWIDTHOrDM_BITSPERPELOrDM_DISPLAYFREQUENCY
.dmPelsWidth=LngWidth
.dmPelsHeight=LngHeight
.dmBitsPerPel=IntColor
.dmDisplayFrequency=LngFrequency
EndWith

SetDisplaymode=ChangeDisplaySettings(NewDevmode,CDS_TEST)
EndFunction