directx编程问题
编译不通过爆出下面一连串错误求解:dizzy:
1>MSVCRTD.lib(crtexe.obj) : error LNK2019: 无法解析的外部符号 _main，该符号在函数 ___tmainCRTStartup 中被引用
1>D:\visual studio sdk\游戏编程\ConsoleApplication1\Debug\ConsoleApplication1.exe : fatal error LNK1120: 1 个无法解析的外部命令
#include <windows.h>
#include <windowsx.h>
#include <mmsystem.h>
#include <iostream>
#include <conio.h>
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <math.h>
#include <io.h>
#include <fcntl.h>
#include <ddraw.h> // include directdraw
using namespace std;
#define WINDOW_CLASS_NAME TEXT("WINCLASS1")
#define SCREEN_WIDTH 640// size of screen
#define SCREEN_HEIGHT 480
#define SCREEN_BPP 8 // bits per pixel
#define MAX_COLORS 256// maximum colors
typedef unsigned short USHORT;
typedef unsigned short WORD;
typedef unsigned charUCHAR;
typedef unsigned charBYTE;
#define KEYDOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0)
#define KEYUP(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 0 : 1)
#define DD_INIT_STRUCT(ddstruct) { memset(&ddstruct,0,sizeof(ddstruct)); ddstruct.dwSize=sizeof(ddstruct); }
HWND main_window_handle = NULL; // globally track main window
HINSTANCE hinstance_app = NULL; // globally track hinstance
LPDIRECTDRAW7 lpdd = NULL;
LPDIRECTDRAWSURFACE7lpddsprimary = NULL;
LPDIRECTDRAWSURFACE7lpddsback = NULL;
LPDIRECTDRAWPALETTE lpddpal = NULL;
LPDIRECTDRAWCLIPPER lpddclipper = NULL;
PALETTEENTRY palette;
PALETTEENTRY save_palette;
DDSURFACEDESC2 ddsd;
DDBLTFX ddbltfx;
DDSCAPS2 ddscaps;
HRESULT ddrval;
DWORD start_clock_count = 0;
// these defined the general clipping rectangle
int min_clip_x = 0, // clipping rectangle
max_clip_x = SCREEN_WIDTH - 1,
min_clip_y = 0,
max_clip_y = SCREEN_HEIGHT - 1;
// these are overwritten globally by DD_Init()
int screen_width = SCREEN_WIDTH, // width of screen
screen_height = SCREEN_HEIGHT, // height of screen
screen_bpp = SCREEN_BPP; // bits per pixel
char buffer; // general printing buffer
// FUNCTIONS //////////////////////////////////////////////
LRESULT CALLBACK WindowProc(HWND hwnd,
UINT msg,
WPARAM wparam,
LPARAM lparam)
{
// this is the main message handler of the system
PAINTSTRUCT ps; // used in WM_PAINT
HDC hdc; // handle to a device context
char buffer; // used to print strings
// what is the message
switch (msg)
{
case WM_CREATE:
{
// do initialization stuff here
// return success
return(0);
} break;
case WM_PAINT:
{
// simply validate the window
hdc = BeginPaint(hwnd, &ps);
// end painting
EndPaint(hwnd, &ps);
// return success
return(0);
} break;
case WM_DESTROY:
{
// kill the application, this sends a WM_QUIT message
PostQuitMessage(0);
// return success
return(0);
} break;
default:break;
} // end switch
// process any messages that we didn't take care of
return (DefWindowProc(hwnd, msg, wparam, lparam));
} // end WinProc
///////////////////////////////////////////////////////////
int Game_Main(void *parms = NULL, int num_parms = 0)
{
// this is the main loop of the game, do all your processing
// here
// for now test if user is hitting ESC and send WM_CLOSE
if (KEYDOWN(VK_ESCAPE))
SendMessage(main_window_handle, WM_CLOSE, 0, 0);
// return success or failure or your own return code here
return(1);
} // end Game_Main
////////////////////////////////////////////////////////////
int Game_Init(void *parms = NULL, int num_parms = 0)
{
// this is called once after the initial window is created and
// before the main event loop is entered, do all your initialization
// here
// create IDirectDraw interface 7.0 object and test for error
if (FAILED(DirectDrawCreateEx(NULL, (void **)&lpdd, IID_IDirectDraw7, NULL)))
return(0);
// set cooperation to full screen
if (FAILED(lpdd->SetCooperativeLevel(main_window_handle,
DDSCL_FULLSCREEN | DDSCL_ALLOWMODEX |
DDSCL_EXCLUSIVE | DDSCL_ALLOWREBOOT)))
{
// error
return(0);
} // end if
// set display mode to 640x480x8
if (FAILED(lpdd->SetDisplayMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, 0, 0)))
{
// error
return(0);
} // end if
// return success or failure or your own return code here
return(1);
} // end Game_Init
/////////////////////////////////////////////////////////////
int Game_Shutdown(void *parms = NULL, int num_parms = 0)
{
// this is called after the game is exited and the main event
// loop while is exited, do all you cleanup and shutdown here
// simply blow away the IDirectDraw4 interface
if (lpdd)
{
lpdd->Release();
lpdd = NULL;
} // end if
// return success or failure or your own return code here
return(1);
} // end Game_Shutdown
// WINMAIN ////////////////////////////////////////////////
int WINAPI WinMain(HINSTANCE hinstance,
HINSTANCE hprevinstance,
LPSTR lpcmdline,
int ncmdshow)
{
WNDCLASSEX winclass; // this will hold the class we create
HWND hwnd; // generic window handle
MSG msg; // generic message
HDC hdc; // graphics device context
// first fill in the window class stucture
winclass.cbSize = sizeof(WNDCLASSEX);
winclass.style = CS_DBLCLKS | CS_OWNDC |
CS_HREDRAW | CS_VREDRAW;
winclass.lpfnWndProc = WindowProc;
winclass.cbClsExtra = 0;
winclass.cbWndExtra = 0;
winclass.hInstance = hinstance;
winclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
winclass.hCursor = LoadCursor(NULL, IDC_ARROW);
winclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
winclass.lpszMenuName = NULL;
winclass.lpszClassName = WINDOW_CLASS_NAME;
winclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
// save hinstance in global
hinstance_app = hinstance;
// register the window class
if (!RegisterClassEx(&winclass))
return(0);
// create the window
if (!(hwnd = CreateWindowEx(NULL, // extended style
WINDOW_CLASS_NAME, // class
TEXT("DirectDraw Full-Screen Demo"), // title
WS_POPUP | WS_VISIBLE,
0, 0, // initial x,y
SCREEN_WIDTH, SCREEN_HEIGHT,// initial width, height
NULL, // handle to parent
NULL, // handle to menu
hinstance,// instance of this application
NULL))) // extra creation parms
return(0);
// save main window handle
main_window_handle = hwnd;
// initialize game here
Game_Init();
// enter main event loop
while (TRUE)
{
// test if there is a message in queue, if so get it
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
// test if this is a quit
if (msg.message == WM_QUIT)
break;
// translate any accelerator keys
TranslateMessage(&msg);
// send the message to the window proc
DispatchMessage(&msg);
} // end if
// main game processing goes here
Game_Main();
} // end while
// closedown game here
Game_Shutdown();
// return to Windows like this
return(msg.wParam);
} 哈哈 太複雜了 这个要几个文件一起编译的。
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