代码实现屏幕亮度最亮

什么名字呀 2017-08-29 05:34:02

如何用代码实现屏幕亮度最亮，setDeviceGammaRamp（）这个不能达到要求，只能在目前亮度基础上实现调节暗，最亮就是目前亮度，所以应该如何实现调节屏幕亮度置最亮

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zwfgdlc 2017-08-30

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https://msdn.microsoft.com/en-us/library/dd692972(v=vs.85).aspx

BOOL SetMonitorBrightness(
  _In_  HANDLE hMonitor,
  _In_  DWORD dwNewBrightness
);

zwfgdlc 2017-08-30

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	LPPHYSICAL_MONITOR pPhysicalMonitorArray = 0;
	DWORD dwNumberOfPhysicalMonitors;

	HMONITOR hMonitor = MonitorFromWindow(FindWindow(NULL, L"Program Manager"), MONITOR_DEFAULTTOPRIMARY);
	GetNumberOfPhysicalMonitorsFromHMONITOR(hMonitor, &dwNumberOfPhysicalMonitors);
	pPhysicalMonitorArray = (LPPHYSICAL_MONITOR)malloc(dwNumberOfPhysicalMonitors * sizeof(PHYSICAL_MONITOR));
	GetPhysicalMonitorsFromHMONITOR(hMonitor, dwNumberOfPhysicalMonitors, pPhysicalMonitorArray);

	DWORD dwMin = 0, dwMax = 0, dwCur = 0;
	GetMonitorBrightness(pPhysicalMonitorArray[0].hPhysicalMonitor, &dwMin, &dwCur, &dwMax);
	printf("MonitorBrightness: Min=%d, Max=%d, Cur=%d\n", dwMin, dwMax, dwCur);
	SetMonitorBrightness(pPhysicalMonitorArray[0].hPhysicalMonitor, 80);
	free(pPhysicalMonitorArray);

什么名字呀 2017-08-30

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引用 3 楼 zwfgdlc 的回复:

https://msdn.microsoft.com/en-us/library/dd692972(v=vs.85).aspx
BOOL SetMonitorBrightness(
  _In_  HANDLE hMonitor,
  _In_  DWORD dwNewBrightness
);

HMONITOR hMonitor= NULL; DWORD cPhysicalMonitors; LPPHYSICAL_MONITOR pPhysicalMonitors= NULL; //HWND hWnd=GetDesktopWindow(); HWND hWnd = ::FindWindow(NULL,NULL); hMonitor= MonitorFromWindow(hWnd, MONITOR_DEFAULTTOPRIMARY); if (!GetNumberOfPhysicalMonitorsFromHMONITOR(hMonitor, &cPhysicalMonitors)) { return 1; } pPhysicalMonitors=(LPPHYSICAL_MONITOR)malloc(cPhysicalMonitors*sizeof(PHYSICAL_MONITOR)); if (pPhysicalMonitors==NULL) { return 1; } // Get the array. if (!GetPhysicalMonitorsFromHMONITOR(hMonitor, cPhysicalMonitors, pPhysicalMonitors)) //获得的 pPhysicalMonitors句柄值为空，描述不为空 GetLastError(); return 1; } // Use the monitor handles . if (!SetMonitorBrightness(pPhysicalMonitors, 100)) //无效监视器句柄 { DWORD D = GetLastError(); return 1; } // Close the monitor handles. DestroyPhysicalMonitors(cPhysicalMonitors,pPhysicalMonitors); // Free the array. free(pPhysicalMonitors);

什么名字呀 2017-08-30

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HMONITOR hMonitor= NULL; DWORD cPhysicalMonitors; LPPHYSICAL_MONITOR pPhysicalMonitors= NULL; //HWND hWnd=GetDesktopWindow(); HWND hWnd = ::FindWindow(NULL,NULL); hMonitor= MonitorFromWindow(hWnd, MONITOR_DEFAULTTOPRIMARY); if (!GetNumberOfPhysicalMonitorsFromHMONITOR(hMonitor, &cPhysicalMonitors)) { return 1; } pPhysicalMonitors=(LPPHYSICAL_MONITOR)malloc(cPhysicalMonitors*sizeof(PHYSICAL_MONITOR)); if (pPhysicalMonitors==NULL) { return 1; } // Get the array. if (!GetPhysicalMonitorsFromHMONITOR(hMonitor, cPhysicalMonitors, pPhysicalMonitors)) { GetLastError(); return 1; } // Use the monitor handles . if (!SetMonitorBrightness(pPhysicalMonitors, 100)) //无效监视器句柄 { DWORD D = GetLastError(); return 1; } // Close the monitor handles. DestroyPhysicalMonitors(cPhysicalMonitors,pPhysicalMonitors); // Free the array. free(pPhysicalMonitors);