ILockBytes::SetSize (Compact 2013)

3/26/2014

This method changes the size of the byte array.

Syntax

HRESULT SetSize( 
  ULARGE_INTEGER cb 
);

Parameters

  • cb
    [in] New size of the byte array as a number of bytes.

Return Value

The following table shows the return values for this method.

Value

Description

S_OK

The size of the byte array was successfully changed.

STG_E_ACCESSDENIED

The caller does not have permission to access the byte array.

STG_E_MEDIUMFULL

The byte array size is not changed because there is no space left on the storage device.

Remarks

ILockBytes::SetSize changes the size of the byte array.

If the cb parameter is larger than the current byte array, the byte array is extended to the indicated size by filling the intervening space with bytes of undefined value, as does the ILockBytes::WriteAt method, if the seek pointer is past the current end-of-stream.

If the cb parameter is smaller than the current byte array, the byte array is truncated to the indicated size.

To determine whether the platform supports this interface, see Determining Supported COM APIs.

Notes to Callers

Callers cannot rely on STG_E_MEDIUMFULL being returned at the appropriate time because of cache buffering in the operating system or network. However, callers must be able to deal with this return code because some ILockBytes interface implementations might support it.

Requirements

Header

objidl.h,
objidl.idl

Library

ole32.lib,
uuid.lib

See Also

Reference

ILockBytes