dinput.cpp

来自「DirectX 封装」· C++ 代码 · 共 92 行

// DInPut.cpp: implementation of the DInPut class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "DInPut.h"
#include "Win32.h"
#include "fGame.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

DInPut::DInPut()
{
	DInPut::InitKeyBoard();
}

DInPut::~DInPut()
{
	DInPut::DI_Term();
}

HRESULT DInPut::InitKeyBoard()
{
	HRESULT ddrval;

	ddrval=DirectInputCreate(AppData.hInstance,0x300,&g_lpdi,NULL);
	if(FAILED(ddrval))
	{
		if(ddrval==DIERR_BETADIRECTINPUTVERSION )
		TRACEINFO("DIERR_BETADIRECTINPUTVERSION ");
		if(ddrval==DIERR_INVALIDPARAM )
		TRACEINFO("DIERR_INVALIDPARAM ");
		if(ddrval==DIERR_OLDDIRECTINPUTVERSION )
		TRACEINFO("DIERR_OLDDIRECTINPUTVERSION ");
		if(ddrval==DIERR_OUTOFMEMORY )
		TRACEINFO("DIERR_OUTOFMEMORY ");
	}
	ddrval=g_lpdi->CreateDevice(GUID_SysKeyboard,&g_lpDIDevice,NULL);
	if(FAILED(ddrval))
	{
		DI_Term();
	}
	ddrval=g_lpDIDevice->SetDataFormat(&c_dfDIKeyboard);
	if(FAILED(ddrval))
	{
		DI_Term();
	}
	ddrval=g_lpDIDevice->SetCooperativeLevel(AppData.hMainWnd,DISCL_FOREGROUND|DISCL_NONEXCLUSIVE);
	if(ddrval)
	{
		DI_Term();
	}
	ddrval=g_lpDIDevice->Acquire();
	return ddrval;
}

void DInPut::DI_Term()
{
	HRESULT ddrval;
	if(g_lpdi)
	{
		if(g_lpDIDevice)
		{
			g_lpDIDevice->Unacquire();
			g_lpDIDevice->Release();
			g_lpDIDevice=NULL;
		}
		g_lpdi->Release();
		g_lpdi=NULL;
	}
}

BOOL DInPut::GetKeyDown(int Key)
{
	char buffer[256];
	HRESULT ddrval;
	ddrval=g_lpDIDevice->GetDeviceState(sizeof(buffer),(LPVOID)&buffer);
	if(FAILED(ddrval))
	{
		MessageBeep(0);
		return FALSE;
	}
	if(buffer[Key]&0x80)
	{
		return TRUE;
	}
	else
	{
		return FALSE;
	}
}