求教~~十万火急

[captainrouis]

在下要做一个极简单的dll类库，实现录音功能，调用时生成对象，传内存地址和大小的参数开始录音，回调函数为结束录音，返回内存地址。编译完连接时出错
test.obj : error LNK2001: unresolved external symbol __imp__waveInStart@4
test.obj : error LNK2001: unresolved external symbol __imp__waveInAddBuffer@12
test.obj : error LNK2001: unresolved external symbol __imp__waveInPrepareHeader@12
test.obj : error LNK2001: unresolved external symbol __imp__waveInOpen@24
test.obj : error LNK2001: unresolved external symbol "void __stdcall waveInProc(struct HWAVEIN__ *,unsigned int,unsigned long,unsigned long,unsigned long)" (?waveInProc@@YGXPAUHWAVEIN__@@IKKK@Z)
test.obj : error LNK2001: unresolved external symbol __imp__waveInReset@4
test.obj : error LNK2001: unresolved external symbol __imp__waveInClose@4
test.obj : error LNK2001: unresolved external symbol __imp__waveInUnprepareHeader@12
求教错误可能性

[mythay]

没声明导出

[w100]

test 工程里 声明dll中的导出函数了吗？

[captainrouis]

声明了导出类