编译连接都成功 就是执行没有反应

//----------------------------------------------------------------------------- // File: Joystick.cpp // // Desc: Demonstrates an application which receives immediate // joystick data in exclusive mode via a dialog timer. // // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- #define STRICT #define DIRECTINPUT_VERSION 0x0800 #include <windows.h> #include <commctrl.h> #include <basetsd.h> #include <dinput.h> #include "resource.h" //----------------------------------------------------------------------------- // Function-prototypes //----------------------------------------------------------------------------- INT_PTR CALLBACK MainDlgProc( HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam ); BOOL CALLBACK EnumObjectsCallback( const DIDEVICEOBJECTINSTANCE* pdidoi, VOID* pContext ); BOOL CALLBACK EnumJoysticksCallback( const DIDEVICEINSTANCE* pdidInstance, VOID* pContext ); HRESULT InitDirectInput( HWND hDlg ); VOID FreeDirectInput(); HRESULT UpdateInputState( HWND hDlg ); //----------------------------------------------------------------------------- // Defines, constants, and global variables //----------------------------------------------------------------------------- #define SAFE_DELETE(p) { if(p) { delete (p); (p)=NULL; } } #define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } } LPDIRECTINPUT8 g_pDI = NULL; LPDIRECTINPUTDEVICE8 g_pJoystick = NULL; //----------------------------------------------------------------------------- // Name: WinMain() // Desc: Entry point for the application. Since we use a simple dialog for // user interaction we don't need to pump messages. //----------------------------------------------------------------------------- //int APIENTRY WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, int ) int WINAPI WinMain(HINSTANCE hInst,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow) { InitCommonControls(); // Display the main dialog box. DialogBox( hInst, MAKEINTRESOURCE(IDD_JOYST_IMM), NULL, (DLGPROC)MainDlgProc ); //hInstance, lpTemplate, hWndParent, lpDialogFunc return TRUE; } //----------------------------------------------------------------------------- // Name: MainDialogProc // Desc: Handles dialog messages //----------------------------------------------------------------------------- INT_PTR CALLBACK MainDlgProc( HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam ) { switch( msg ) { case WM_INITDIALOG: if( FAILED( InitDirectInput( hDlg ) ) ) { MessageBox( NULL, TEXT("Error Initializing DirectInput"), TEXT("DirectInput Sample"), MB_ICONERROR | MB_OK ); EndDialog( hDlg, 0 ); } // Set a timer to go off 30 times a second. At every timer message // the input device will be read SetTimer( hDlg, 0, 1000 / 30, NULL ); return TRUE; case WM_ACTIVATE: if( WA_INACTIVE != wParam && g_pJoystick ) { // Make sure the device is acquired, if we are gaining focus. g_pJoystick->Acquire(); } return TRUE; case WM_TIMER: // Update the input device every timer message if( FAILED( UpdateInputState( hDlg ) ) ) { KillTimer( hDlg, 0 ); MessageBox( NULL, TEXT("Error Reading Input State. ") \ TEXT("The sample will now exit."), TEXT("DirectInput Sample"), MB_ICONERROR | MB_OK ); EndDialog( hDlg, TRUE ); } return TRUE; case WM_COMMAND: switch( LOWORD(wParam) ) { case IDCANCEL: EndDialog( hDlg, 0 ); return TRUE; } case WM_DESTROY: // Cleanup everything KillTimer( hDlg, 0 ); FreeDirectInput(); return TRUE; } return FALSE; // Message not handled } //----------------------------------------------------------------------------- // Name: InitDirectInput() // Desc: Initialize the DirectInput variables. //----------------------------------------------------------------------------- HRESULT InitDirectInput( HWND hDlg ) { HRESULT hr; // Register with the DirectInput subsystem and get a pointer // to a IDirectInput interface we can use. // Create a DInput object if( FAILED( hr = DirectInput8Create( GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8, (VOID**)&g_pDI, NULL ) ) ) return hr; // Look for a simple joystick we can use for this sample program. if( FAILED( hr = g_pDI->EnumDevices( DI8DEVCLASS_GAMECTRL, EnumJoysticksCallback, NULL, DIEDFL_ATTACHEDONLY ) ) ) return hr; // Make sure we got a joystick if( NULL == g_pJoystick ) { MessageBox( NULL, TEXT("Joystick not found. The sample will now exit."), TEXT("DirectInput Sample"), MB_ICONERROR | MB_OK ); EndDialog( hDlg, 0 ); return S_OK; } // Set the data format to "simple joystick" - a predefined data format // // A data format specifies which controls on a device we are interested in, // and how they should be reported. This tells DInput that we will be // passing a DIJOYSTATE2 structure to IDirectInputDevice::GetDeviceState(). if( FAILED( hr = g_pJoystick->SetDataFormat( &c_dfDIJoystick2 ) ) ) return hr; // Set the cooperative level to let DInput know how this device should // interact with the system and with other DInput applications. if( FAILED( hr = g_pJoystick->SetCooperativeLevel( hDlg, DISCL_EXCLUSIVE | DISCL_FOREGROUND ) ) ) return hr; // Enumerate the joystick objects. The callback function enabled user // interface elements for objects that are found, and sets the min/max // values property for discovered axes. if( FAILED( hr = g_pJoystick->EnumObjects( EnumObjectsCallback, (VOID*)hDlg, DIDFT_ALL ) ) ) return hr; return S_OK; } //----------------------------------------------------------------------------- // Name: EnumJoysticksCallback() // Desc: Called once for each enumerated joystick. If we find one, create a // device interface on it so we can play with it. //----------------------------------------------------------------------------- BOOL CALLBACK EnumJoysticksCallback( const DIDEVICEINSTANCE* pdidInstance, VOID* pContext ) { HRESULT hr; // Obtain an interface to the enumerated joystick. hr = g_pDI->CreateDevice( pdidInstance->guidInstance, &g_pJoystick, NULL ); // If it failed, then we can't use this joystick. (Maybe the user unplugged // it while we were in the middle of enumerating it.) if( FAILED(hr) ) return DIENUM_CONTINUE; // Stop enumeration. Note: we're just taking the first joystick we get. You // could store all the enumerated joysticks and let the user pick. return DIENUM_STOP; } //----------------------------------------------------------------------------- // Name: EnumObjectsCallback() // Desc: Callback function for enumerating objects (axes, buttons, POVs) on a // joystick. This function enables user interface