C language function:GetDeviceGammaRamp sample codes

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TITLE : Class Monitor (Brightness, ColorTemperature) - AutoHotkey Community
Hi jNizM,trying your sample script to find an answer for your related question in "Ask For Help" I ran into an issue with GetDeviceGammaRamp(). If I use the class as is, the returned value is *0, and if I change the DllCall to use the original function name, the returned value is -128.The array filled by the function contains (order: index - R value - G value - B value):.......
http://autohotkey.com/boards/viewtopic.php@t=7854


TITLE : DisplayCAL / Discussion / General Discussion:The profile could not be installed/activated
GetDeviceGammaRamp() is hard coded for nent == 256, and we've got nent = 32!.......
http://sourceforge.net/p/dispcalgui/discussion/932494/thread/8fa03f3d/
TITLE : Manipulating Monitor Brightness in Visual Basic
Private Shared Function GetDeviceGammaRamp(ByVal hdc As Int32, _.......
http://www.codeguru.com/columns/vb/manipulating-monitor-brightness-in-visual-basic.html
TITLE : Manipulating Monitor Brightness in Visual Basic
GetDeviceGammaRamp(GetDC(IntPtr.Zero), crTempRamp).......
http://www.codeguru.com/columns/vb/manipulating-monitor-brightness-in-visual-basic.html
TITLE : Gamma correction slider - CodeProject
if (!GetDeviceGammaRamp(::GetDC(NULL), m_RampSaved)).......
http://www.codeproject.com/Articles/3086/Gamma-correction-slider
TITLE : Changing the screen brightness programmingly - By using the Gamma Ramp API
BOOL GetDeviceGammaRamp(HDC hDC, LPVOID lpRamp);.......
http://www.nirsoft.net/vc/change_screen_brightness.html
TITLE : Changing the screen brightness programmingly - By using the Gamma Ramp API
BOOL CGammaRamp::GetDeviceGammaRamp(HDC hDC, LPVOID lpRamp).......
http://www.nirsoft.net/vc/change_screen_brightness.html
TITLE : Changing the screen brightness programmingly - By using the Gamma Ramp API
return pGetDeviceGammaRamp(hDC, lpRamp);.......
http://www.nirsoft.net/vc/change_screen_brightness.html
TITLE : adjusting screen contrast through C# code programmatically | PC Review
GetDeviceGammaRamp( GammaDC, GammaArray );.......
http://www.pcreview.co.uk/threads/adjusting-screen-contrast-through-c-code-programmatically.4038760/
TITLE : OS/X how to get physical display handle [Archive] - Qt Centre Forum
hr = GetDeviceGammaRamp(hDisplayDC, (LPVOID) ramp_buffer);.......
http://www.qtcentre.org/archive/index.php/t-7688.html
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