If (dwMonitorCapabilities & MC_CAPS_BRIGHTNESS)īSuccess = GetMonitorBrightness(mPhysicalMonitor.hPhysicalMonitor, &dwMinimumBrightness, &dwCurrentBrightness, &dwMaximumBrightness) Monitor::Monitor(PHYSICAL_MONITOR pm) : mPhysicalMonitor(pm)īOOL bSuccess = GetMonitorCapabilities(mPhysicalMonitor.hPhysicalMonitor, &dwMonitorCapabilities, &dwSupportedColorTemperatures)
Void setCurrentBrightnessFraction(double fraction) Here is some example code: Monitor.h #pragma once I haven't tried downloading it from one of those dodgy mirror sites.Įdit: Turns out there is an easy to use API for setting the screen brightness in Windows.
ScreenBright - Apparently uses DDC/CI to control the backlight, but has been removed from the author's website. These are the control codes this monitors apparently supports: New control value I was able to adjust the backlight brightness from the software. I have a Dell U2515H connected via HDMI to an nVidia card. Many manufacturers did not pay attention to DDC/CI in the past, but now almost all monitors support such general MCCS commands as brightness and contrast management. Most DDC/CI monitors support only a small subset of MCCS commands and some have undocumented commands. Some tilting DDC/CI monitors support an auto-pivot function, where a rotation sensor in the monitor enables the operating system to keep the display upright as the monitor is moved between its portrait and landscape positions. Specific commands to control monitors are defined in a separate Monitor Control Command Set (MCCS) standard version 1.0, released in September 1998.ĭDC/CI monitors are sometimes supplied with an external color sensor to allow automatic calibration of the monitor's color balance. It specifies a means for a computer to send commands to the monitor, as well as receive sensor data from the monitor, over a bidirectional link. Is it possible to enable it? Because I heard that DDC/CI lets your computer control your display.ĭDC/CI (Command Interface) standard was introduced in August 1998. I am using Windows 8, and the brightness control on the Charm Bar is disabled. I have a Dell U2412M monitor which has a DisplayPort and an up-link USB port. 
Some Indian person responded weirdly and finally answered that he/she did not have technical knowledge and just gave me the link to the e-mail support (which I tried already). Then I tried their "technical" chat support. Their web site required service code just to send an e-mail. Well, I just wanted this yes/no simple question to Dell e-mail support.
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