FREAcquireByteArray()

AIR 3.0 and later

Usage

FREResult FREAcquireByteArray ( 
            FREObject                 object, 
            FREByteArray*                 byteArrayToSet 
);

Parameters

object
An FREObject. This FREObject parameter represents an ActionScript ByteArray class object.

byteArrayToSet
A pointer to a variable of type FREByteArray. The runtime sets the fields of this structure when the native C implementation calls this method. See FREByteArray .

Returns

An FREResult. The possible return values include, but are not limited to, the following:

FRE_OK
The function succeeded. The FREByteArray parameter is set. The ActionScript ByteArray object is available for you to manipulate.

FRE_ILLEGAL_STATE
The extension context has already acquired an ActionScript BitmapData or ByteArray object. The context cannot call this method until it releases that BitmapData or ByteArray object.

FRE_INVALID_ARGUMENT
The byteArrayToSet parameter is NULL .

FRE_INVALID_OBJECT
The FREObject object parameter is invalid.

FRE_TYPE_MISMATCH
The FREObject object parameter does not represent an ActionScript ByteArray class object.

FRE_WRONG_THREAD
The method was called from a thread other than the one on which the runtime has an outstanding call to a native extension function.

Description

Call this function to acquire the bytes of an ActionScript ByteArray class object. Once you have successfully called this function, you cannot successfully call any other C API function until you call FREReleaseByteArray() . This prohibition is because other calls could, as a side effect, execute code that invalidates the pointer to the byte array contents.

After calling this function, you can manipulate the bytes of the ByteArray object. The bytes are available in the byteArrayToSet parameter, along with the number of bytes. When you have finished working with the bytes, call FREReleaseByteArray() .

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