请教：出现非常奇怪的错误，请各位大哥帮我看看，谢谢！
#include <windows.h>
#include <stdio.h>
#include "include\hge.h "
#pragma comment(lib, "lib\\vc\\hge.lib "); //库
#pragma comment(lib, "lib\\vc\\hgehelp.lib "); //库


int i;

HGE *hge = 0;

// This function will be called by HGE once per frame.
// Put your game loop code here. In this example we
// just check whether ESC key has been pressed.
bool FrameFunc()
{
// By returning "true " we tell HGE
// to stop running the application.
if (hge-> Input_GetKeyState(HGEK_ESCAPE)) return true;

// Continue execution
return false;
}

LONGg_lOldProc = NULL; //全局变量

HRESULT MyWndProc( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam )
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
char temp[128];
switch( nMsg )
{
caseWM_RBUTTONDOWN:
{
MessageBox( hWnd, "你在我身上点了右键，你想干嘛? ", "测试 ", 0 );
}
break;
case WM_TIMER:
i++;
if (i%2)
{
hdc = GetDC(hWnd);
sprintf(temp, "x: %d , y: %d ",50,50);
TextOut(hdc,100,100,temp,strlen(temp));
ReleaseDC(hWnd,hdc);
}
else
{
hdc = GetDC(hWnd);
sprintf(temp, "x: %d , y: %d ",60,60);
TextOut(hdc,100,100,temp,strlen(temp));
ReleaseDC(hWnd,hdc);
}
break ;
//在这里， 作你想做的事情~~~~~~
}
if( g_lOldProc != NULL )
return CallWindowProc( (WNDPROC)g_lOldProc, hWnd, nMsg, wParam, lParam );//调用原来的窗口处理函数
else
return DefWindowProc( hWnd, nMsg, wParam, lParam );
}

int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{
// Here we use global pointer to HGE interface.
// Instead you may use hgeCreate() every
// time you need access to HGE. Just be sure to
// have a corresponding hge-> Release()
// for each call to hgeCreate()
hge = hgeCreate(HGE_VERSION); //创建 HGE

// Set our frame function
hge-> System_SetState(HGE_FRAMEFUNC, FrameFunc); //回调函数 FrameFunc

// Set the window title
hge-> System_SetState(HGE_TITLE, "HGE Tutorial 01 - Minimal HGE application ");

// Run in windowed mode
// Default window size is 800x600
hge-> System_SetState(HGE_WINDOWED, true);

// Don 't use BASS for sound
hge-> System_SetState(HGE_USESOUND, false);

// Tries to initiate HGE with the states set.
// If something goes wrong, "false " is returned
// and more specific description of what have
// happened can be read with System_GetErrorMessage().


i=0;
if(hge-> System_Initiate())
{
// Starts running FrameFunc().
// Note that the execution "stops " here
// until "true " is returned from FrameFunc().
HWND hWnd = hge-> System_GetState( HGE_HWND );//获得hge的窗口句柄

if(hWnd != NULL )
{
SetTimer(hWnd,1,1000,NULL);
g_lOldProc = SetWindowLong( hWnd, GWL_WNDPROC, (LONG)MyWndProc );//设置窗口处理函数为你自己定义的， 并且保存原来的窗口处理函数
}
hge-> System_Start();
}
else
{
// If HGE initialization failed show error message
MessageBox(NULL, hge-> System_GetErrorMessage(), "Error ", MB_OK | MB_ICONERROR | MB_APPLMODAL);
}

// Now ESC has been pressed or the user
// has closed the window by other means.

// Restore video mode and free
// all allocated resources
hge-> System_Shutdown();

// Release the HGE interface.
// If there are no more references,
// the HGE object will be deleted.
hge-> Release();

return 0;
}


请教，编译时提示：
--------------------Configuration: hge_tut01 - Win32 Debug--------------------
Linking...
hge_tut01.obj : error LNK2001: unresolved external symbol __imp__TextOutA@20
Debug/hge_tut01.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

hge_tut01.exe - 2 error(s), 0 warning(s)


这是什么原因啊？
谢谢！


[解决办法]
包含头文件的时候加extern“C”估计就好了


[解决办法]
#pragma comment(lib, "lib\\vc\\hge.lib "); //库
#pragma comment(lib, "lib\\vc\\hgehelp.lib "); //库

没有对应的 h 文件声明这两个 lib 中的函数原型？

extern“C” 加在函数原型上。