How to enable the program compiled by VC to write SQL statements without garbled characters

When using VC and ADO technology to read and write ntext fields of Database SQL, the written content will be garbled.

Cause: encoding problem

By default, VC does not support Unicode. How to make Vc support Unicode.

The procedure is as follows:

Select "project | Settings" in the main menu to open the Project Settings dialog box => then select the "C/C ++" label => Add Unicode or _ Unicode preprocessing macro commands in the "Preprocessor definitions" edit box.

This will cause lnk2001 errors.

Solution:

Select "project | Settings" in the main menu to open the Project Settings dialog box => then select link ---> select output in category and writeWwinmaincrtstartup 

For details, see msdn98 "Unicode programming summary"

Visual c ++ documentation ------ using Visual C ++ -------------- visual c ++ programmer's guide -------

Adding program functionalty ---------------- details ------------------- interantional proramming topics

---------- Support for Unicode ------- Unicode programming Summary

Unicode programming related connections: http://www.vckbase.com/document/viewdoc? Id = 642