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3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 * The contents of this file are subject to the Mozilla Public License Version
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23 * Jim Mathies <jmathies@mozilla.com>
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39 #ifndef gfx_SharedDIB_h__
40 #define gfx_SharedDIB_h__
42 #include "base/shared_memory.h"
52 typedef base::SharedMemoryHandle Handle
;
58 // Create and allocate a new shared dib.
59 nsresult
Create(PRUint32 aSize
);
61 // Destroy or release resources associated with this dib.
64 // Returns true if this object contains a valid dib.
67 // Wrap a new shared dib around allocated shared memory. Note aHandle must point
68 // to a memory section large enough to hold a dib of size aSize, otherwise this
70 nsresult
Attach(Handle aHandle
, PRUint32 aSize
);
72 // Returns a SharedMemoryHandle suitable for sharing with another process.
73 nsresult
ShareToProcess(base::ProcessHandle aChildProcess
, Handle
*aChildHandle
);
76 base::SharedMemory
*mShMem
;