Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

The Environment

Developers working on applications for 64-bit Windows will find the development environment virtually identical to the development environment for 32-bit Windows. The existing APIs have been modified where necessary to allow them to reflect the precision of the platform on which they are running. The result is simplicity and a short learning curve for the developer—writing code for 64-bit Windows is just like writing code for 32-bit Windows.

The Windows header files support new data types that allow pointers and pointer-associated variables to reflect the precision of the platform. This means that developers can compile a single source base to run natively on either 32-bit Windows or 64-bit Windows. This strategy reduces the cost of developing applications that leverage 64-bit hardware such as AMD Opteron or Athlon64 processors or Intel Itanium processors.

You will have more time to make your applications 64-bit ready if you adopt the new data-type conventions as soon as possible. If you are changing your code, you should change the data definitions at the same time. Test the application on 32-bit Windows, run it through the 64-bit compiler (described in The Tools), and the application will be ready to test when you have the appropriate 64-bit hardware.

 

 

Community Additions

ADD
Show:
© 2015 Microsoft