https://msdn.microsoft.com/en-us/library/windows/desktop/ms685035%28v=vs.85%29.aspx 改；ASCIIで流し込めるか？

checkKeyInput.cpp

#include <windows.h>
#include <stdio.h>

HANDLE hStdin;
DWORD fdwSaveOldMode;

VOID ErrorExit(LPSTR);
VOID KeyEventProc(KEY_EVENT_RECORD);
VOID MouseEventProc(MOUSE_EVENT_RECORD);
VOID ResizeEventProc(WINDOW_BUFFER_SIZE_RECORD);

int main(VOID)
{
	DWORD cNumRead, fdwMode, i;
	INPUT_RECORD irInBuf[128];
	int counter = 0;

	// Get the standard input handle. 

	hStdin = GetStdHandle(STD_INPUT_HANDLE);
	if (hStdin == INVALID_HANDLE_VALUE)
		ErrorExit("GetStdHandle");

	// Save the current input mode, to be restored on exit. 

	if (!GetConsoleMode(hStdin, &fdwSaveOldMode))
		ErrorExit("GetConsoleMode");

	// Enable the window and mouse input events. 

	fdwMode = ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT;
	if (!SetConsoleMode(hStdin, fdwMode))
		ErrorExit("SetConsoleMode");

	// Loop to read and handle the next 100 input events. 

	while (TRUE)
	{
		// Wait for the events. 

		if (!ReadConsoleInput(
			hStdin,      // input buffer handle 
			irInBuf,     // buffer to read into 
			128,         // size of read buffer 
			&cNumRead)) // number of records read 
			ErrorExit("ReadConsoleInput");

		// Dispatch the events to the appropriate handler. 

		for (i = 0; i < cNumRead; i++)
		{
			switch (irInBuf[i].EventType)
			{
			case KEY_EVENT: // keyboard input 
				KeyEventProc(irInBuf[i].Event.KeyEvent);
				break;

			case MOUSE_EVENT: // mouse input 
				//MouseEventProc(irInBuf[i].Event.MouseEvent);
				break;

			case WINDOW_BUFFER_SIZE_EVENT: // scrn buf. resizing 
				//ResizeEventProc(irInBuf[i].Event.WindowBufferSizeEvent);
				break;

			case FOCUS_EVENT:  // disregard focus events 

			case MENU_EVENT:   // disregard menu events 
				break;

			default:
				ErrorExit("Unknown event type");
				break;
			}
		}
	}

	// Restore input mode on exit.

	SetConsoleMode(hStdin, fdwSaveOldMode);

	return 0;
}

VOID ErrorExit(LPSTR lpszMessage)
{
	fprintf(stderr, "%s\n", lpszMessage);

	// Restore input mode on exit.

	SetConsoleMode(hStdin, fdwSaveOldMode);

	ExitProcess(0);
}

VOID KeyEventProc(KEY_EVENT_RECORD ker)
{

	char buf[10];
	BOOL defused;
	WideCharToMultiByte(CP_ACP,
		WC_NO_BEST_FIT_CHARS | WC_DEFAULTCHAR,
		(LPCWCH) ker.uChar.UnicodeChar,
		1,
		buf,
		10,
		NULL,
		&defused); // ???

	printf("%s rep=%d key=%d scan=%d [ascii=(%d, \'%c\')]\n", (ker.bKeyDown ? "↓" : "↑"), ker.wRepeatCount, ker.wVirtualKeyCode, ker.wVirtualScanCode, ker.uChar.AsciiChar, ker.uChar.AsciiChar);
/*	if (ker.bKeyDown)
		printf("key pressed\n");
	else printf("key released\n");*/
}

VOID MouseEventProc(MOUSE_EVENT_RECORD mer)
{
#ifndef MOUSE_HWHEELED
#define MOUSE_HWHEELED 0x0008
#endif
	printf("Mouse event: ");

	switch (mer.dwEventFlags)
	{
	case 0:

		if (mer.dwButtonState == FROM_LEFT_1ST_BUTTON_PRESSED)
		{
			printf("left button press \n");
		}
		else if (mer.dwButtonState == RIGHTMOST_BUTTON_PRESSED)
		{
			printf("right button press \n");
		}
		else
		{
			printf("button press\n");
		}
		break;
	case DOUBLE_CLICK:
		printf("double click\n");
		break;
	case MOUSE_HWHEELED:
		printf("horizontal mouse wheel\n");
		break;
	case MOUSE_MOVED:
		printf("mouse moved\n");
		break;
	case MOUSE_WHEELED:
		printf("vertical mouse wheel\n");
		break;
	default:
		printf("unknown\n");
		break;
	}
}

VOID ResizeEventProc(WINDOW_BUFFER_SIZE_RECORD wbsr)
{
	printf("Resize event\n");
	printf("Console screen buffer is %d columns by %d rows.\n", wbsr.dwSize.X, wbsr.dwSize.Y);
}