c#调用C++dll的问题!!
c#代码
[DllImport("CDLlDemo.dll", EntryPoint = "wori")]
public extern static int wori();
private void button1_Click(object sender, EventArgs e)
{
textBox1.Text =wori().ToString();
}
c++代码 cpp
int CDLlDemo::wori() {
return 3+5;
}
h
#ifndef CDLLDEMO_H_
#define CDLLDEMO_H_
class CDLlDemo {
public:
CDLlDemo();
virtual ~CDLlDemo();
virtual int wori();
};
#endif /* CDLLDEMO_H_ */
------解决方案--------------------可有加.def文件导出函数?
要么用def文件导出函数,要么在函数声明中加上__declspec(dllexport)
------解决方案--------------------头文件没定义dll入口吧
#ifdef YOURDLL
#define YOURDLL extern "C" _declspec(dllimport)
#else
#define YOURDLL extern "C" _declspec(dllexport)
#endif
YOURDLL int your_function( );