Method Function

src/com/sun/jna/Function.java:240–257

Create a new Function that is linked with a native function that follows the given calling convention. The allocated instance represents a pointer to the named native function from the supplied library, called with the given calling convention. @param library {@lin

(NativeLibrary library, String functionName, int callFlags, String encoding)

     * not found within the library.
     */
    Function(NativeLibrary library, String functionName, int callFlags, String encoding) {
        checkCallingConvention(callFlags & MASK_CC);
        if (functionName == null) {
            throw new NullPointerException("Function name must not be null");
        }
        this.library = library;
        this.functionName = functionName;
        this.callFlags = callFlags;
        this.options = library.getOptions();
        this.encoding = encoding != null ? encoding : Native.getDefaultStringEncoding();
        try {
            this.peer = library.getSymbolAddress(functionName);
        } catch(UnsatisfiedLinkError e) {
            throw new UnsatisfiedLinkError("Error looking up function '"
                                           + functionName + "': "
                                           + e.getMessage());
        }
    }

    /**
     * Create a new <code>Function</code> that is linked with a native