Xbox one 手柄 api Xinput

相关文档地址：https://docs.microsoft.com/en-us/windows/win32/xinput/getting-started-with-xinput

须要的头文件：Xinput.h

lib 文件：Xinput.lib 

最多同时支持 4 个手柄，因为作工等问题，手柄静止时摇杆可能并不在 0 上，两个 trigger 的数据范围是 0~255，两个摇杆是 -32768~32767。

官方文档里还有部分关于 dead zoom 的描述，本例没有考虑

#include <cstdio>
#include <Windows.h>
#include <Xinput.h>

using namespace std;

int GetControllorNum()
{
	DWORD dwResult;
	int num = 0;
	for (DWORD i = 0; i < XUSER_MAX_COUNT; i++) //up to 4 controllors
	{
		XINPUT_STATE state;
		ZeroMemory(&state, sizeof(XINPUT_STATE));

		// Simply get the state of the controller from XInput.
		dwResult = XInputGetState(i, &state);

		if (dwResult == ERROR_SUCCESS)
		{
			// Controller is connected 
			printf("one\n");
			num++;
		}
		else
		{
			printf("no\n");
			// Controller is not connected 
		}
	}
	return num;
}



int main()
{
	int controllorNum = GetControllorNum();
	if (controllorNum > 0)
	{
		XINPUT_STATE state, state2;
		ZeroMemory(&state, sizeof(XINPUT_STATE));
		ZeroMemory(&state2, sizeof(XINPUT_STATE));
		// Simply get the state of the controller from XInput.
		DWORD dwResult = XInputGetState(0, &state);
		while (true)
		{
			dwResult = XInputGetState(0, &state2);
			if (state2.dwPacketNumber != state.dwPacketNumber)
			{
				printf("chaned\n");
				state = state2;
				state2.Gamepad.bLeftTrigger;
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_UP)
				{
					printf("XINPUT_GAMEPAD_DPAD_UP");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_DOWN)
				{
					printf("XINPUT_GAMEPAD_DPAD_DOWN");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_LEFT)
				{
					printf("XINPUT_GAMEPAD_DPAD_LEFT");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_RIGHT)
				{
					printf("XINPUT_GAMEPAD_DPAD_RIGHT");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_START)
				{
					printf("XINPUT_GAMEPAD_START");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_BACK)
				{
					printf("XINPUT_GAMEPAD_BACK");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_LEFT_THUMB)
				{
					printf("XINPUT_GAMEPAD_LEFT_THUMB");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_RIGHT_THUMB)
				{
					printf("XINPUT_GAMEPAD_RIGHT_THUMB");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_LEFT_SHOULDER)
				{
					printf("XINPUT_GAMEPAD_LEFT_SHOULDER");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_RIGHT_SHOULDER)
				{
					printf("XINPUT_GAMEPAD_RIGHT_SHOULDER");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_A)
				{
					printf("XINPUT_GAMEPAD_A");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_B)
				{
					printf("XINPUT_GAMEPAD_B");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_X)
				{
					printf("XINPUT_GAMEPAD_X");
				}
				if (state.Gamepad.wButtons & XINPUT_GAMEPAD_Y)
				{
					printf("XINPUT_GAMEPAD_Y");
				}
				printf(" pressed\n");

				XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE;
				printf("LeftTrigger: %d\n", state.Gamepad.bLeftTrigger);
				printf("RightTrigger: %d\n", state.Gamepad.bRightTrigger);
				printf("ThumbLX: %d\n", state.Gamepad.sThumbLX);
				printf("ThumbLY: %d\n", state.Gamepad.sThumbLY);
				printf("ThumbRX: %d\n", state.Gamepad.sThumbRX);
				printf("ThumbRY: %d\n", state.Gamepad.sThumbRY);
			}
			else
			{
				printf("no change\n");
			}

			Sleep(1000);
		}
	}
	else
	{
		printf("no controllor connected\n");
	}
	return 0;
}