#include "..\include_eapi_header.h"

typedef struct VIDEOMODE
{

	DWORD m_dwWidth;
	DWORD m_dwHeight;
	DWORD m_dwFrequency;
	DWORD m_dwBitsPerPixel;
	VIDEOMODE() {
		memset(this, sizeof(this), 0);
	}
	VIDEOMODE(DWORD BitsPerPixel, DWORD Width, DWORD Height, DWORD Frequency) {
		m_dwBitsPerPixel = BitsPerPixel;
		m_dwWidth = Width;
		m_dwHeight = Height;
		m_dwFrequency = Frequency;
	}
}*PVIDEOMODE;
inline void CreateCompatibleDEVMODE(DEVMODE* pdm, DWORD BitsPerPixel, DWORD Width, DWORD Height, DWORD Frequency)
{
	ZeroMemory(pdm, sizeof(DEVMODE));
	pdm->dmSize = sizeof(DEVMODE);

	if (BitsPerPixel)
	{
		pdm->dmBitsPerPel = BitsPerPixel;
		pdm->dmFields |= DM_BITSPERPEL;
	}

	if (Width)
	{
		pdm->dmPelsWidth = Width;
		pdm->dmFields |= DM_PELSWIDTH;
	}

	if (Height)
	{
		pdm->dmPelsHeight = Height;
		pdm->dmFields |= DM_PELSHEIGHT;
	}

	if (Frequency)
	{
		pdm->dmDisplayFrequency = Frequency;
		pdm->dmFields |= DM_DISPLAYFREQUENCY;
	}
}

inline LONG ChangeVideoModeTemporarily(VIDEOMODE mode)
{
	DEVMODE dm;
	CreateCompatibleDEVMODE(&dm, mode.m_dwBitsPerPixel, mode.m_dwWidth, mode.m_dwHeight, mode.m_dwFrequency);
	LONG rVal = ChangeDisplaySettings(&dm, 0);
	return rVal;
}
inline BOOL SetResolveRatio(DWORD w, DWORD h, DWORD bit, DWORD Fre)
{
	VIDEOMODE DC(bit, w, h, Fre);

	return ChangeVideoModeTemporarily(DC) == 0;
}
// 调用格式: SDT_BOOL 设置屏幕分辨率, 命令说明: NULL
// 参数<1>: 宽度 SDT_INT, 参数说明: "屏幕显示区域的宽度,单位为像素点。"
// 参数<2>: 高度 SDT_INT, 参数说明: "屏幕显示区域的高度,单位为像素点。"
// 参数<3>: [位数 SDT_INT], 参数说明: "每像素的位数。"
// 参数<4>: [刷新频率 SDT_INT], 参数说明: "屏幕的刷新频率。"
EAPI_EXTERN_C void eapi_SetResolveRatio_69_eapi(PMDATA_INF pRetData, INT nArgCount, PMDATA_INF pArgInf)
{
	int bit = 25, fre = 75;
	if (pArgInf[2].m_dtDataType)
	{
		bit = pArgInf[2].m_int;
	}
	if (pArgInf[3].m_dtDataType)
	{
		fre = pArgInf[3].m_int;
	}
	pRetData->m_bool = SetResolveRatio(pArgInf[0].m_int, pArgInf[1].m_int, bit, fre);
}