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SamuelPlentz
 Post subject:
PostPosted: September 22nd, 2011, 9:01 am 
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Joined: July 26th, 2006, 11:25 am
Posts: 19
SKAN wrote:
Code:
cD = 32   ; bits (quality) - you can change to suit your requirments
sW = 1440 ; pixels - you can change to suit your requirments
sH = 900  ; pixels - you can change to suit your requirments
rR = 60   ; Hz (frequency) - you can change to suit your requirments

ChangeDisplaySettings( cD, sW, sH, rR )

Return

ChangeDisplaySettings( cD, sW, sH, rR ) {
  VarSetCapacity(dM,156,0), NumPut(156,dM,36)
  DllCall( "EnumDisplaySettings", UInt,0, UInt,-1, UInt,&dM ), NumPut(0x5c0000,dM,40)
  NumPut(cD,dM,104),  NumPut(sW,dM,108),  NumPut(sH,dM,112),  NumPut(rR,dM,120)
  Return DllCall( "ChangeDisplaySettings", UInt,&dM, UInt,0 )
} 


Does not work anymore in AHK_L Unicode.
I can't figure out the reason. IMO there is no string used in the dll call.

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SKAN
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PostPosted: September 22nd, 2011, 9:57 am 
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Joined: December 26th, 2005, 4:40 pm
Posts: 8776
DEVMODE structure is different for unicode call.
Instead of using different versions of structure , we may simply force ANSI :

Code:
ChangeDisplaySettings( cD, sW, sH, rR ) {
  VarSetCapacity(dM,156,0), NumPut(156,dM,36)
  DllCall( "EnumDisplaySettingsA", UInt,0, UInt,-1, UInt,&dM ), NumPut(0x5c0000,dM,40)
  NumPut(cD,dM,104),  NumPut(sW,dM,108),  NumPut(sH,dM,112),  NumPut(rR,dM,120)
  Return DllCall( "ChangeDisplaySettingsA", UInt,&dM, UInt,0 )
}

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SamuelPlentz
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PostPosted: September 22nd, 2011, 10:00 am 
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Joined: July 26th, 2006, 11:25 am
Posts: 19
Thank you very much. Works well.

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triple
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PostPosted: December 15th, 2011, 11:27 am 
Hello everyone,

i'm unsing win7 OS and most of the posted codes won't work.
Generally i want to switch the frequency @ 1080p form 60Hz to 24Hz by unsing a hotkey. The code below quits/stops automatically by using the defined Hotkey.

My FullHD device is selected as the second display.

Code:
^space::
  if (x:=!x)
    ChangeDisplaySettings( (bpp:=32), (breite:=1920), (hoehe:=1080), (hZ:=60) )
  else
    ChangeDisplaySettings( (bpp:=32), (breite:=1920), (hoehe:=1080), (hZ:=24) )
Return

ChangeDisplaySettings( cD, sW, sH, rR ) {
  VarSetCapacity(dM,156,0), NumPut(156,2,&dM,36)
  DllCall( "EnumDisplaySettings", UInt,0, UInt,-1, UInt,&dM ), NumPut(0x5c0000,dM,40)
  NumPut(cD,dM,104),  NumPut(sW,dM,108),  NumPut(sH,dM,112),  NumPut(rR,dM,120)
  Return DllCall( "ChangeDisplaySettings", UInt,&dM, UInt,0 )
}


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