330 lines
10 KiB
C
330 lines
10 KiB
C
//---------------------------------------------------------------------------------------
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//
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// Simple Windows DirectInput Example Code
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//
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// Jim Shaw 15/3/2004
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//
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//---------------------------------------------------------------------------------------
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//---------------------------------------------------------------------------------------
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// Always include windows.h for windows programs
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//---------------------------------------------------------------------------------------
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#include <windows.h>
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#define DIRECTINPUT_VERSION 0x800
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#include <dinput.h>
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#include <stdio.h>
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//---------------------------------------------------------------------------------------
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// Window dimensions
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//---------------------------------------------------------------------------------------
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#define SCREEN_X 640
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#define SCREEN_Y 480
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//---------------------------------------------------------------------------------------
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// Variable to hold the address of the Windows window
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//---------------------------------------------------------------------------------------
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HWND game_window;
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//---------------------------------------------------------------------------------------
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// Name of our window class. every class has a name. every window is one of a class.
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// this can be pretty much anything
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//---------------------------------------------------------------------------------------
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char game_class[]="DICWindow";
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static int quit = 0;
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//---------------------------------------------------------------------------------------
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// Function prototypes
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//---------------------------------------------------------------------------------------
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int init_dinput(HINSTANCE);
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void shutdown_dinput(void);
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void show_dinput_status(HDC hdc);
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//---------------------------------------------------------------------------------------
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// DirectInput Variables
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//---------------------------------------------------------------------------------------
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IDirectInput8 *dinput;
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IDirectInputDevice8 *keyboard;
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IDirectInputDevice8 *mouse;
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IDirectInputDevice8 *joystick;
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unsigned char keymap[256];
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DIMOUSESTATE2 mousedata;
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DIJOYSTATE2 joydata;
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//---------------------------------------------------------------------------------------
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// Every window has a WindowProc which handles messages Windows sends to them. These
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// are things like key presses, mouse clicks, and thousands of other things you might
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// be interested in.
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//---------------------------------------------------------------------------------------
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LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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switch (uMsg)
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{
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//this message gets sent to the window when you click the close box on it
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case WM_DESTROY:
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//tell Windows to close the app
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PostQuitMessage(0);
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quit = 1;
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break;
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case WM_PAINT:
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{
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PAINTSTRUCT ps;
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BeginPaint(hwnd, &ps);
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show_dinput_status(ps.hdc);
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EndPaint(hwnd, &ps);
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}
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break;
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case WM_TIMER:
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InvalidateRect(hwnd, 0, TRUE);
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break;
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//this message gets sent when you press a key
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case WM_KEYDOWN:
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switch (wParam)
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{
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//pressed Escape key?
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case VK_ESCAPE:
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//tell Windows to close the app
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PostQuitMessage(0);
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quit = 1;
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break;
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}
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break;
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//any message you don't process gets passed to this function inside Windows.
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default:
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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//any message you do process, return 0 (unless the message documentation says otherwise)
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return 0;
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}
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//---------------------------------------------------------------------------------------
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// WinMain
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//---------------------------------------------------------------------------------------
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int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
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{
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WNDCLASSEX clas;
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MSG msg;
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int style;
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RECT rect;
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//Here we create the Class we named above
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clas.cbSize = sizeof(WNDCLASSEX);
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clas.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
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clas.lpfnWndProc = WindowProc;//<- tell it where the WindowProc is
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clas.cbClsExtra = 0;
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clas.cbWndExtra = 0;
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clas.hInstance = hInstance;
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clas.hIcon = NULL;
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clas.hCursor = NULL;
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clas.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);//<- background colour of window
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clas.lpszMenuName = NULL;
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clas.lpszClassName = game_class;//<- the class name
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clas.hIconSm = 0;
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//do it!
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RegisterClassEx(&clas);
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//style of the window - what boxes do we need (close minimised etc)
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style = WS_CAPTION|WS_SYSMENU|WS_MAXIMIZEBOX|WS_MINIMIZEBOX;
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//create the window
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game_window = CreateWindowEx(0, game_class, "DirectInput", style, CW_USEDEFAULT, CW_USEDEFAULT, 1,1, NULL, NULL, hInstance, 0);
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//adjust the window size so that a SCREEN_X x SCREEN_Y window will fit inside its frame
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rect.left = rect.top = 0;
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rect.right = SCREEN_X;
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rect.bottom = SCREEN_Y;
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AdjustWindowRectEx(&rect, style , FALSE, 0);
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SetWindowPos(game_window, NULL, 0,0, rect.right - rect.left, rect.bottom - rect.top, SWP_NOMOVE|SWP_NOZORDER);
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//show the window on the desktop
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ShowWindow(game_window, nCmdShow);
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if (init_dinput(hInstance) == 0)
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{
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MessageBox(NULL, "A problem occurred creating DirectInput.\nCheck your DirectX version.\n"
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"This demo requires DirectX9.0 or better.", "DirectX Initialisation Error", MB_ICONWARNING|MB_OK);
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shutdown_dinput();
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return 0;
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}
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// Create a timer to refresh the window
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SetTimer(game_window, 1, 1000/30, NULL);
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//message processing loop
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//all Windows programs have one of these. It receives the messages Windows sends to the program and
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//passes them to the WindowProc in the Class we registered for the window.
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quit = 0;
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do
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{
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//Are there any messages waiting?
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while (GetMessage(&msg, game_window, 0,0) > 0 && !quit)
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{
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//pass the message to WindowProc
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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} while (!quit);
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// Close everything down
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KillTimer(game_window, 1);
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shutdown_dinput();
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return 0;
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}
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//---------------------------------------------------------------------------------------
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// Callback to look at DirectInput devices to see if we're interested in them
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//---------------------------------------------------------------------------------------
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BOOL CALLBACK dinput_enum_callback(LPCDIDEVICEINSTANCE lpddi, LPVOID pvRef)
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{
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HRESULT err;
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err = IDirectInput8_CreateDevice(dinput, &lpddi->guidInstance, &joystick, NULL);
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if (err != DI_OK)
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return DIENUM_STOP;
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err = IDirectInputDevice8_SetDataFormat(joystick, &c_dfDIJoystick2);
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if (err != DI_OK)
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{
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IDirectInputDevice8_Release(joystick);
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joystick = NULL;
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return DIENUM_STOP;
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}
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err = IDirectInputDevice8_SetCooperativeLevel(joystick, game_window, DISCL_NONEXCLUSIVE|DISCL_FOREGROUND);
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err = IDirectInputDevice8_Acquire(joystick);
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return DIENUM_STOP;
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}
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//---------------------------------------------------------------------------------------
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// Create the DirectInput interface and access mouse, keyboard and joystick
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//---------------------------------------------------------------------------------------
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int init_dinput(HINSTANCE hInst)
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{
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HRESULT err;
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// Create the DirectInput interface
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err = DirectInput8Create(hInst, DIRECTINPUT_VERSION, &IID_IDirectInput8, &dinput, NULL);
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if (err != DI_OK)
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return 0;
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// Create the Keyboard device
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err = IDirectInput8_CreateDevice(dinput, &GUID_SysKeyboard, &keyboard, NULL);
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err = IDirectInputDevice8_SetDataFormat(keyboard, &c_dfDIKeyboard);
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err = IDirectInputDevice8_SetCooperativeLevel(keyboard, game_window, DISCL_NONEXCLUSIVE|DISCL_FOREGROUND);
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err = IDirectInputDevice8_Acquire(keyboard);
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// Create the mouse device
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err = IDirectInput8_CreateDevice(dinput, &GUID_SysMouse, &mouse, NULL);
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err = IDirectInputDevice8_SetDataFormat(mouse, &c_dfDIMouse2);
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err = IDirectInputDevice8_SetCooperativeLevel(mouse, game_window, DISCL_NONEXCLUSIVE|DISCL_FOREGROUND);
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err = IDirectInputDevice8_Acquire(mouse);
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// Check for a joystick device, and create it if one exists
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err = IDirectInput8_EnumDevices(dinput, DI8DEVCLASS_GAMECTRL, dinput_enum_callback, 0, DIEDFL_ALLDEVICES);
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return 1;
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}
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//---------------------------------------------------------------------------------------
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// Shutdown DirectInput
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//---------------------------------------------------------------------------------------
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void shutdown_dinput(void)
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{
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if (joystick)
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{
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IDirectInputDevice8_Unacquire(joystick);
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IDirectInputDevice8_Release(joystick);
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}
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if (mouse)
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{
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IDirectInputDevice8_Unacquire(mouse);
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IDirectInputDevice8_Release(mouse);
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}
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if (keyboard)
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{
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IDirectInputDevice8_Unacquire(keyboard);
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IDirectInputDevice8_Release(keyboard);
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}
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if (dinput) IDirectInput8_Release(dinput);
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}
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//---------------------------------------------------------------------------------------
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// Read data back from the controllers
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//---------------------------------------------------------------------------------------
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void read_dinput_status(void)
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{
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HRESULT err;
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// Read the keyboard
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err = IDirectInputDevice8_Poll(keyboard);
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err = IDirectInputDevice8_GetDeviceState(keyboard, 256, keymap);
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// Read the mouse
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err = IDirectInputDevice8_Poll(mouse);
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err = IDirectInputDevice8_GetDeviceState(mouse, sizeof mousedata, &mousedata);
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// Read the joystick
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if (joystick)
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{
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err = IDirectInputDevice8_Poll(joystick);
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err = IDirectInputDevice8_GetDeviceState(joystick, sizeof joydata, &joydata);
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}
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}
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//---------------------------------------------------------------------------------------
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// Display current device inputs
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//---------------------------------------------------------------------------------------
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void show_dinput_status(HDC hdc)
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{
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int x, y;
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char text[256];
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read_dinput_status();
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// Keymap status
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TextOut(hdc, 0,0, "Keyboard", 8);
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for (y = 0; y < 16; y++)
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{
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for (x = 0; x < 16; x++)
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{
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if (keymap[x+16*y])
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TextOut(hdc, x*10, (y+1)*16, "1", 1);
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else
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TextOut(hdc, x*10, (y+1)*16, "0", 1);
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}
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}
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// Mouse status
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TextOut(hdc, 260,0, "Mouse", 5);
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sprintf(text, "XYZ %d,%d,%d", mousedata.lX, mousedata.lY, mousedata.lZ);
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TextOut(hdc, 260, 16, text, strlen(text));
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for (x = 0; x < 8; x++)
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{
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if (mousedata.rgbButtons[x])
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TextOut(hdc, 260+x*10,32, "1", 1);
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else
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TextOut(hdc, 260+x*10,32, "0", 1);
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}
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//Joystick status
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TextOut(hdc, 400, 0, "Joystick", 8);
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if (joystick)
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{
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sprintf(text, "XYZ %d,%d,%d", joydata.lX, joydata.lY, joydata.lZ);
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TextOut(hdc, 400, 16, text, strlen(text));
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}
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else
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{
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TextOut(hdc, 400, 16, "Unattached", 10);
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}
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}
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