Convert (JNA API)

com.sun.jna.platform.win32.COM.util

## Class Convert

- java.lang.Object
- - com.sun.jna.platform.win32.COM.util.Convert

-     class Convert
      extends java.lang.Object

  This class is considered internal to the package.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `Convert()`

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static void` | `free(Variant.VARIANT variant, java.lang.Class<?> javaType)` Free the contents of the supplied VARIANT.
    `static void` | `free(Variant.VARIANT variant, java.lang.Object value)` Free the contents of the supplied VARIANT.
    `static <T extends IComEnum> T` | `toComEnum(java.lang.Class<T> enumType, java.lang.Object value)`
    `static java.lang.Object` | `toJavaObject(Variant.VARIANT value, java.lang.Class<?> targetClass, ObjectFactory factory, boolean addReference, boolean freeValue)`
    `static Variant.VARIANT` | `toVariant(java.lang.Object value)` Convert a java value into a VARIANT suitable for passing in a COM invocation.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### Convert

          Convert()

  - ### Method Detail

    - #### toVariant

          public static Variant.VARIANT toVariant(java.lang.Object value)

      Convert a java value into a VARIANT suitable for passing in a COM invocation.

      Implementation notes

      - VARIANTs are not rewrapped, but passed through unmodified
      - A string is wrapped into a BSTR, that is wrapped into the VARIANT. The string is allocated as native memory by the VARIANT constructor. The BSTR needs to be freed by `OleAuto.SysFreeString(com.sun.jna.platform.win32.WTypes.BSTR)`.
      Parameters:
        `value` - to be wrapped
      Returns:
        wrapped VARIANT

    - #### toJavaObject

          public static java.lang.Object toJavaObject(Variant.VARIANT value,
                                                      java.lang.Class<?> targetClass,
                                                      ObjectFactory factory,
                                                      boolean addReference,
                                                      boolean freeValue)

    - #### toComEnum

          public static <T extends IComEnum> T toComEnum(java.lang.Class<T> enumType,
                                                         java.lang.Object value)

    - #### free

          public static void free(Variant.VARIANT variant,
                                  java.lang.Class<?> javaType)

      Free the contents of the supplied VARIANT.

      This method is a companion to `toVariant(java.lang.Object)`. Primary usage is to free BSTRs contained in VARIANTs.

      Parameters:
        `variant` - to be cleared
        `javaType` - type before/after conversion

    - #### free

          public static void free(Variant.VARIANT variant,
                                  java.lang.Object value)

      Free the contents of the supplied VARIANT.

      This method is a companion to `toVariant(java.lang.Object)`. Primary usage is to free BSTRs contained in VARIANTs.

      Parameters:
        `variant` - to be cleared
        `value` - value before/after conversion

Copyright © 2007-2018 Timothy Wall. All Rights Reserved.