BlackMark/AdaptiveBrightness
1
0
Fork 0
Code Issues Pull Requests Releases 5 Wiki Activity

Implement setting monitor brightness

Browse Source
This commit is contained in:
BlackMark 2020-07-05 21:24:01 +02:00
parent 058ba0846b
commit 5197295368
2 changed files with 35 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
AdaptiveBrightness/monitor.hpp
View File

@ -2,7 +2,9 @@
#ifdef _MSC_VER
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include <physicalmonitorenumerationapi.h>
@ -46,6 +48,8 @@ class Monitor {
const HMONITOR m_hMonitor;
const PhysicalMonitor m_physicalMonitor;
std::optional<std::pair<DWORD, DWORD>> m_brightnessRange;
};
#endif

32
AdaptiveBrightness/monitor_win.cpp
View File

@ -34,7 +34,35 @@ Monitor::~Monitor()
bool Monitor::setBrightness(float percentage)
{
return false;
if(!m_brightnessRange) {
qDebug(ltr("No brightness range known for monitor '%1' with handle '0x%2' and physical handle '0x%3'")
.arg(m_physicalMonitor.name)
.arg(reinterpret_cast<qulonglong>(m_hMonitor), 0, 16)
.arg(reinterpret_cast<qulonglong>(m_physicalMonitor.handle), 0, 16));
if(std::isnan(getBrightness()))
return false;
}
const auto mappedBrightness = map(percentage, 0.f, 1.f, m_brightnessRange->first, m_brightnessRange->second);
const auto newBrightness = std::clamp<DWORD>(std::round(mappedBrightness), m_brightnessRange->first, m_brightnessRange->second);
if(!SetMonitorBrightness(m_physicalMonitor.handle, newBrightness)) {
qCritical(ltr("Failed to set brightness of monitor '%1' with handle '0x%2' and physical handle '0x%3', error: %4")
.arg(m_physicalMonitor.name)
.arg(reinterpret_cast<qulonglong>(m_hMonitor), 0, 16)
.arg(reinterpret_cast<qulonglong>(m_physicalMonitor.handle), 0, 16)
.arg(getLastErrorString()));
return false;
}
qDebug(ltr("Setting brightness of monitor '%1' with handle '0x%2' and physical handle '0x%3' to %4")
.arg(m_physicalMonitor.name)
.arg(reinterpret_cast<qulonglong>(m_hMonitor), 0, 16)
.arg(reinterpret_cast<qulonglong>(m_physicalMonitor.handle), 0, 16)
.arg(newBrightness));
return true;
}
float Monitor::getBrightness()
@ -57,6 +85,8 @@ float Monitor::getBrightness()
return NAN;
}
m_brightnessRange = std::pair{minBrightness, maxBrightness};
return std::clamp(map(brightness, minBrightness, maxBrightness, 0.f, 1.f), 0.f, 1.f);
}