关于DLL调用问题

[shanyonggang]

我在调用：RationalScale.dll中的函数
1、USB303_API USHORT UsbLinearScaleEx(char Option,char Axis,PWRITEDEV WriteDevice,PREADDEV ReadDevice,void *IntStatus,void *Reserved)
2、USB303_API USHORT GetInfo(char *Manufacturer,char *Producer,char *SerialNumber,char *BufLength);
出现下列编译错误：
Deleting intermediate files and output files for project 'usb302shan - Win32 Debug'.
--------------------Configuration: usb302shan - Win32 Debug--------------------
Compiling resources...
Compiling...
StdAfx.cpp
Compiling...
usb302shan.cpp
usb302shanDlg.cpp
Generating Code...
Linking...
usb302shanDlg.obj : error LNK2001: unresolved external symbol __imp__UsbLinearScaleEx
usb302shanDlg.obj : error LNK2001: unresolved external symbol __imp__ConnectUSB302
Debug/usb302shan.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.

usb302shan.exe - 3 error(s), 0 warning(s)
请朋友帮助这是为什么？先谢谢各位！我是一个初学者！！！

[oyljerry]

你需要Link RationalScale.dll对应的lib文件 否则需要通过LoadLibrary方式来加载RationalScale.dll

[zaghost]

引用 3 楼 oyljerry 的回复:

你需要Link RationalScale.dll对应的lib文件 否则需要通过LoadLibrary方式来加载RationalScale.dll

++

[傻X]

保证下DLL的码制和主工程一致 都用Unicode或者都用多字符 USB303_API是啥？？

[hdg3707]

查下__imp__UsbLinearScaleEx和__imp__ConnectUSB302这两个变量或定义在哪个文件里,是不是没有包含这两个定义的头文件