为什么编译的时候没有问题，可是build的时候却出现问题呢？谢谢大家帮忙了

[jltt]

//如下为编译错误：
/*
--------------------Configuration: t3d - Win32 Debug--------------------
Linking...
t.obj : error LNK2001: unresolved external symbol _IID_IDirectDraw7
t.obj : error LNK2001: unresolved external symbol _DirectDrawCreate@12
Debug/t3d.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.

t3d.exe - 3 error(s), 0 warning(s)
*/
//如下为代码

#include<windows.h>
#include<windowsx.h>
#include <ddraw.h>

#define WINDOW_CLASS_NAME "WINCLASS1"
#define KEYDOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0X8000) ? 1:0)



HINSTANCE hinstance_app;
HWND main_window_handle;
LPDIRECTDRAW lpdd = NULL;
LPDIRECTDRAW7 lpdd7 = NULL;
LRESULT CALLBACK WindowProc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam);
int Game_Init(void *parms=NULL);
int Game_Main(void *parms =NULL);
int Game_Shutdown(void *parms = NULL);




int WINAPI WinMain(HINSTANCE hinstance,HINSTANCE hprevinstance,LPSTR lpcmdline,int ncmdshow)
{
WNDCLASSEX winclass;
HWND hwnd;
MSG msg;
HDC hdc;

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 instance in global
hinstance_app=hinstance;

if(!RegisterClassEx(&winclass))
{
return 0;
}

if(!(hwnd=CreateWindowEx(NULL,WINDOW_CLASS_NAME,
"T3D Game Console Version 1.0",
WS_OVERLAPPEDWINDOW|WS_VISIBLE,
0,0,
400,300,
NULL,
NULL,
hinstance,
NULL)))
return 0;
// MessageBox(NULL,"d","t",MB_OK);

main_window_handle = hwnd;

Game_Init();
while(TRUE)
{
if(PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
if(msg.message==WM_QUIT)
{
break;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
Game_Main();

}
Game_Shutdown();
return (msg.wParam);

}

LRESULT CALLBACK WindowProc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam)
{
switch(msg)
{
case WM_CREATE:
{
return 0;
}
case WM_PAINT:
{
return 0;
}
case WM_DESTROY:
{
PostQuitMessage(0);
return 0;
}
default:break;
};
return DefWindowProc(hwnd,msg,wparam,lparam);
}
int Game_Init(void *parms)
{
/*directx9.0不支持这种写法
if(FAILED(DirectDrawCreateEx(NULL,(void **)&lpdd,IID_IDirectDraw7,NULL)))
return 0;
*/
if (FAILED(DirectDrawCreate(NULL,&lpdd,NULL)))
return 0;
if (FAILED(lpdd->QueryInterface(IID_IDirectDraw7,(LPVOID* )&lpdd7)))
return 0;

if(FAILED(lpdd7->SetCooperativeLevel(main_window_handle,DDSCL_NORMAL)))
return 0;
return 1;
}
int Game_Main(void *parms)
{
if(KEYDOWN(VK_ESCAPE))
SendMessage(main_window_handle,WM_CLOSE,0,0);

return 1;
}
int Game_Shutdown(void *parms)
{
if(lpdd7)
{
lpdd7->Release();
lpdd7 = NULL;
}
return 1;
}

[jltt]

希望大家帮忙阿

[kingzai]

在程序中添加
"E:\Program Files\Microsoft Visual Studio .NET\Vc7\PlatformSDK\lib\prerelease\ddraw.lib"

"E:\Program Files\Microsoft Visual Studio .NET\Vc7\PlatformSDK\lib\prerelease\ddraw.lib" "E:\Program Files\Microsoft Visual Studio .NET\Vc7\PlatformSDK\lib\prerelease\dxguid.lib"

[muroachanf]

没有引出函数，或者没有lib文件。

[jltt]

可是我编译的时候正常阿

[老夏Max]

lib文件文件版本不对，或者是没有导出这些函数！！

[老夏Max]

除了需要 ddraw.lib 还要dxguid.lib
结果加上之后就通过了，
或者在程序中加入
#define INITGUID 也行

[快乐鹦鹉]

没有包含lib文件。DirectDraw7在哪个lib文件中？

[jltt]

dxguid.lib我给加上了，可是他说这个头文件不存在
我也加上了#define INITGUID ，可是，并没有改变错误信息

#include<windows.h>
#include<windowsx.h>
#include <ddraw.h>
//#include<dxguid.h>

[jltt]

哎，麻烦大家了，我现在刚刚开始学习！

谢谢大家

[muroachanf]

大概是你sdk版本不对，下个最新的看看。

[binjuny]

LIB文件 或 版本和DX的不匹配

[老夏Max]

那你就下载最新的DirectX SDK安装！