ISpRecoGrammar::LoadCmdFromMemory (Windows CE 5.0)

아티클
09/14/2012

This method loads a compiled CFG binary from memory.

HRESULT LoadCmdFromMemory(const SPBINARYGRAMMAR* pBinaryData,SPLOADOPTIONS Options);

Parameters

pBinaryData
[in] Pointer to a serialized header buffer. Possible types are defined for the SPBINARYGRAMMAR enumeration.
Options
[in] Value indicating if the file should be loaded dynamically. Possible values are defined for the SPLOADOPTIONS enumeration.

Return Values

The following table shows the possible return values.

Value	Description
S_OK	Function completed successfully.
E_INVALIDARG	Either pBinaryData or one of its members is invalid or bad. It can also indicate pBinaryData->FormatId is not SPGDF_ContextFree. Alternatively, Options is neither SPLO_STATIC nor SPLO_DYNAMIC.
FAILED(hr)	Appropriate error message.

Remarks

When an application calls LoadCmdFromMemory, the currently loaded CFG or proprietary grammar will be unloaded.

Example

The following code snippet illustrates how to use this method to serialize the CFG from one grammar object, and deserialize it into another grammar object.

HRESULT hr = S_OK;
// ... build and use a SpRecoGrammar object
// create a Win32 global stream
hr = ::CreateStreamOnHGlobal(NULL, true, &cpHStream);
// Check hr
// save the current grammar to the global stream
hr = cpRecoGrammar->SaveCmd(cpHStream, NULL);
// Check hr
// create the second grammar to deserialize into
hr = cpRecoContext->CreateGrammar(0, &cpReloadedGrammar);
// Check hr
// get a handle to the stream with the serialized grammar
::GetHGlobalFromStream(cpHStream, &hGrammar);
// Check hr
// deserialize the CFG into a new grammar object
hr = cpReloadedGrammar->LoadCmdFromMemory(
   (SPBINARYGRAMMAR*)::GlobalLock(hGrammar), SPLO_DYNAMIC);
// Check hr

Requirements

OS Versions: Windows CE .NET 4.1 and later.
Header: Sapi.h, Sapi.idl.
Link Library: Sapilib.lib.

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