gammaramp.h

一个可以通过串口读取传感器的亮度信息,然后发送数据到主机中,根据这个值可以来设置我们显示屏的亮度

// GammaRamp.h: interface for the CGammaRamp class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_GAMMARAMP_H__F3E7DEDB_C1F1_47FE_A520_7BA5EF504C51__INCLUDED_)
#define AFX_GAMMARAMP_H__F3E7DEDB_C1F1_47FE_A520_7BA5EF504C51__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class CGammaRamp
{
protected:
	HMODULE hGDI32;
	HDC hScreenDC;
	typedef BOOL (WINAPI *Type_SetDeviceGammaRamp)(HDC hDC, LPVOID lpRamp);

	Type_SetDeviceGammaRamp pGetDeviceGammaRamp;
	Type_SetDeviceGammaRamp pSetDeviceGammaRamp;

public:

	CGammaRamp();
	~CGammaRamp();
	BOOL LoadLibrary();
	void FreeLibrary();
	BOOL LoadLibraryIfNeeded();
	BOOL SetDeviceGammaRamp(HDC hDC, LPVOID lpRamp);
	BOOL GetDeviceGammaRamp(HDC hDC, LPVOID lpRamp);
	BOOL SetBrightness(HDC hDC, WORD wBrightness);

};

#endif // !defined(AFX_GAMMARAMP_H__F3E7DEDB_C1F1_47FE_A520_7BA5EF504C51__INCLUDED_)