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Showing content from http://java-native-access.github.io/jna/5.17.0/javadoc/com/sun/jna/platform/win32/WTypes.BSTR.html below:

WTypes.BSTR (JNA API)

Alle implementierten Schnittstellen:

NativeMapped

Umschließende Schnittstelle:

WTypes

BSTR wrapper.

From MSDN:

A BSTR (Basic string or binary string) is a string data type that is used by COM, Automation, and Interop functions. Use the BSTR data type in all interfaces that will be accessed from script.

The memory structure:

Length prefix

Length of the data array holding the string data and does not include the final two NULL characters.

Data string

UTF-16LE encoded bytes for the string.

Terminator

Two null characters

The "value" of the BSTR is the pointer to the start of the Data String, the length prefix is the four bytes before that.

The MSDN states, that a BSTR derived from a Nullpointer is treated as a string containing zero characters.

• Konstruktorübersicht

  Konstruktoren

  Instantiate a BSTR from a pointer.

• Methodenübersicht

• Konstruktordetails
  • BSTR

    public BSTR()

  • BSTR

    Parameter:

    pointer - A pointer to the string

  • BSTR
• Methodendetails
  • setValue
  • getValue
  • toString

    Setzt außer Kraft:

    toString in Klasse PointerType

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