为什么这样的OpenAL代码在Visual Studio 2008中提供了这样的Erros?

时间:2010-11-03 15:06:27

标签: c++ c visual-studio visual-studio-2008 openal

所以一般来说我的代码非常简单 - 我正在尝试编写Microphone Echo程序,这是它的开始(因为在我看来 - 我对OpenAL很谨慎)

#include "stdafx.h"
#include <iostream> 
#include <windows.h> 
#include <stdlib.h>
#include <conio.h>
#include <math.h>
#include <stdio.h>  

#include <al.h>
#include <alc.h>
#include <alut.h>


using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
    cin.get();
    return 0;
}
void BlockingCapture(ALCdevice *mCaptureDevice, ALCubyte *pBuffer, 
                     ALCint iSamplesToGet) 
{ 
    ALCint capturedSamples = 0; 
    while(capturedSamples < iSamplesToGet) 
    { 
        ALCint avail; 
        alcGetIntegerv(mCaptureDevice, ALC_CAPTURE_SAMPLES, 1, &avail); 
        if(avail > 0/*or some threshold*/) 
        { 
            avail = min(avail, iSamplesToGet-capturedSamples); 
            alcCaptureSamples(mCaptureDevice, pBuffer, avail); 
            capturedSamples += avail; 
            pBuffer += avail; 
        } 
        else 
            Sleep(0); 
    } 
} 

当我尝试编译它时,它给了我3个错误

1)Error 1 error LNK2019: ссылка на неразрешенный внешний символ __imp__alcCaptureSamples в функции "void __cdecl BlockingCapture(struct ALCdevice_struct *,unsigned char *,int)" (?BlockingCapture@@YAXPAUALCdevice_struct@@PAEH@Z) HelloOpenALMic.obj HelloOpenALMic

2)Error 2 error LNK2019: ссылка на неразрешенный внешний символ __imp__alcGetIntegerv в функции "void __cdecl BlockingCapture(struct ALCdevice_struct *,unsigned char *,int)" (?BlockingCapture@@YAXPAUALCdevice_struct@@PAEH@Z) HelloOpenALMic.obj HelloOpenALMic

3)Error 3 fatal error LNK1120: 2 неразрешенных внешних элементов C:\Users\Avesta\Documents\Visual Studio 2008\Projects\OJ\OJ\V3\Debug\HelloOpenALMic.exe HelloOpenALMic

BTW :(我已将此post作为我的代码的起点。)

如何摆脱它们?

1 个答案:

答案 0 :(得分:1)

您需要将OpenAL库链接到您的应用程序。

进入项目属性 - &gt; Linker-&gt;输入并将openal32.lib添加到列表中。