我用的是VC6与MatlabA
装饰Matlab代码编译成DLL文件老失败，搞了好久没找到原因，请教各位！
以下是网上的算例，照着做了，就是不能初始化DLL。
发表于： -10-18 17:35:31 我的开发环境是：Matlab 7.0 和 VC++6.0(mbuild环境已配置好)
编程步骤：
1、在Matlab中编写一个Draw.m文件，文件内容为：
%实现输入x1与x2，然后绘制sin曲线，然后生成两个随机数并输出
function [X1,Y1]=Draw(x1,x2)
x=x1:0.1:x2;
y=sin(x);
X1=rand(1);
Y1=rand(1);
plot(x,y,X1,Y1,'*');
2、利用命令 mcc -W cpplib:Draw -T link:lib Draw.m 生成DLL；
3、新建一个VC++工程(基于对话框的)
4、拷贝draw.h、Draw.dll、Draw.lib及Draw.ctf到VC++工程目录中，并将Draw.h 加入到当前工程中；
5、设置环境：Project->Setting->Link->Category ：Input->Object/library modules：mclmcr.lib Draw.lib；
6、在对话框的头文件中加入 #include "draw.h" 与 #include "mclmcr.h"；
7、在对话框的OnInitDialog()事件中进行 MATLAB 库文件的初始化，在对话框的OnDestroy()事件中进行 MATLAB 库文件资源的释放，代码如下：
BOOL CMatlabDrawInputXYDlg::OnInitDialog()
{
CDialog::OnInitDialog();
……………
// TODO: Add extra initialization here
/* Call the mclInitializeApplication routine. Make sure that the application
* was initialized properly by checking the return status. This initialization
* has to be done before calling any MATLAB API's or MATLAB Compiler generated
* shared library functions.*/
if( !mclInitializeApplication(NULL,0) )
{
AfxMessageBox( "Could not initialize the application.");
exit(1);
}
/* Call the library intialization routine and make sure that the
* library was initialized properly. */
if (!DrawInitialize())
{
AfxMessageBox("Could not initialize the library.");
exit(1);
}
return TRUE;// return TRUEunless you set the focus to a control
}
void CMatlabDrawInputXYDlg::OnDestroy()
{
CDialog::OnDestroy();
/* Call the library termination routine */
DrawTerminate();
mclTerminateApplication();
}
8、在窗体界面上放置两个编辑框(用于输入起始值和终止值，并设置变量m_X1和m_X2，均为double类型)和一个按钮；
9、编辑按钮单击事件代码，如下：
void CMatlabDrawInputXYDlg::OnBUTTONDraw()
{
// TODO: Add your control notification handler code here
double Data_X1[1],Data_X2[1];
double Data_Out1[1],Data_Out2[1];
CString strPromt;
mwArray m_InX1(1,1,mxDOUBLE_CLASS);
mwArray m_InX2(1,1,mxDOUBLE_CLASS);
mwArray m_OutX1(1,1,mxDOUBLE_CLASS);
mwArray m_OutX2(1,1,mxDOUBLE_CLASS);
UpdateData(TRUE);
Data_X1[0]=m_X1;
Data_X2[0]=m_X2;
m_InX1.SetData(Data_X1,1);
m_InX2.SetData(Data_X2,1);
draw(2,m_OutX1,m_OutX2,m_InX1,m_InX2);
//extern void mlxDraw(int nlhs, mxArray *plhs[], int nrhs, mxArray *prhs[]);
//extern void draw(int nargout, mwArray& X1, mwArray& Y1, const mwArray& x1, const mwArray& x2);
m_OutX1.GetData(Data_Out1,1);
m_OutX2.GetData(Data_Out2,1);
strPromt.Format("X1= %.6f",Data_Out1[0]);
AfxMessageBox(strPromt);
strPromt.Format("Y1= %.6f",Data_Out2[0]);
AfxMessageBox(strPromt);
}
10、编译通过，运行正常
