MySQL UDF development on Windows

A bug report has been submitted for a bug in Windows version of MySQL that does not use UDF. But
It seems to me that I made a mistake, and the MySQL technical support staff gave me the perfect solution to share
A moment. Below is the original reply:)
Sorry this isn ' t a bug.
Below I pasted a sample I did sometime ago for another user:
Ok. Assuming you have VC and the source distribution and a server
Running
I'll create a UDF that returns a name:
Note:the sample is ugly, but the purpose here
To handle the UDF.
-Open the MYSQLD.DSW workspace.
-ADD New project to the workspace
-Project NAME:MY_UDF
-Select Win32 Dynamic-link Library
-Click OK
-Select an Empty DLL project
-Click Finish
-Click OK
-Add A new file called My_udf.cpp to the project:
#include <stdlib.h>
#include <winsock.h>
#include <mysql.h>
extern "C" {
Char *my_name (udf_init *initid, Udf_args *args, Char *is_null,
Char *error);
}
Char *my_name (udf_init *initid, Udf_args *args, Char *is_null,
Char *error)
{
char * me = "my Name";
return me;
}
-Type Ctrl N for to create a new file.
-Select Text Type
-File Name:my_udf.def
-Edit the above file with the below contents:
LIBRARY Udf_example
DESCRIPTION ' Example Using UDF with VC '
VERSION 1.0
Exports
My_name
-Right Click the MY_UDF project and select Settings
-Click The/C tab
-Select General in the Category Combo
-ADD the macro have_dlopen to the preprocessor definition
-Select preprocessor in the Category Combo
-ADD the Include path to the text box:additional include directories
e.g:.. /include
-Press F7 for to build the DLL.
-Copy the My_udf.dll to the Environment path directory:
Winntsystem32 for example.
-Start The MySQL client and issue:
C:mysql-udfin>mysql-uroot-p