如何以这种方式加载DLL库以及程序中的程序？

首先，请注意本手册没有说明64位兼容性.dll有一个C接口，所以你将加载一个已编译的函数库。
就数据类型而言，short int只是短的，uchar是BYTE（除非参数是splatted，在这种情况下它是char *）。
对于那些返回uchar的函数，我不完全确定，但看起来这是一个简单的错误枚举，所以你可能最好把它留在BYTE。
如果这些函数中的任何一个返回指针（我没有看到任何），那会使事情变得复杂。他们明确声明他们使用stdcall调用约定，但他们没有说他们是否在抑制名称修改，所以你可能会
必须为导出的函数名称转换一下。
例如，I2CRead可以是简单的I2CRead，也可以是_I2CRead@8.-SHAWN-



     以下为原文

  First off, note that the manual doesn't say anything about 64-bit compatibility.

The dll has a C interface, so you'll be loading a compiled function library. As far as data types go, short int is just short, uchar is BYTE (unless the parameter is splatted, in which case it's char *). For those functions that return uchar, I'm not entirely sure but it looks like this is a simple error enum, so you're probably best off to leave it at BYTE. If any of these functions return pointers (I didn't see any), that complicates matters a bit.

They explicitly state that they use the stdcall calling convention, but they don't say if they're suppressing name-mangling so you might have to cast around a bit for the exported function name. For instance, I2CRead may be simple I2CRead, or it may be _I2CRead@8.
-SHAWN-

感谢Chang和Shawn的回复！我已经弄明白问题是什么了。正如你所提到的，这确实是一个定义文件问题。谢谢你的帮助！
他们非常感谢！幻影



     以下为原文

  Thank you Chang and Shawn for your replies!
I have already figured out what the problem was.
As you mentioned, it was indeed a definition file issue.

Thanks again for all your help! They are highly appreciated!

Phantom