JWindow Demonstrates How to call Win32 APIs from Java

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The JWINDOW sample contains JWindow.java, which calls the standard Win32 DLLs and illustrates how to use the @dll.import directives to invoke the DLL functions from Java.

To use J/Direct, you need to have installed version 1.02.4337 or higher of the Microsoft Compiler for Java (Jvc.exe) and the Microsoft virtual machine for Java version 2252 or later. The compiler is available with the Microsoft SDK for Java version 2.0x or later. The virtual machine, however, is no longer included with the SDK for Java in versions 3.2 and later, and must be downloaded seperately. For more information, visit the following Microsoft Web site: site.

When executing this Java application , if you encounter an UnsatisifiedLinkError, then check your version of the compiler. If your compiler does not support J/Direct, the Microsoft Win32 virtual machine will attempt to link native methods using the Raw Native Interface and hence will not succeed.