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Add data exchange through a global shared state block #303

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Add data exchange through a global shared state block #303

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30 changes: 30 additions & 0 deletions src/win32com/Controller.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1733,6 +1733,36 @@ STDMETHODIMP CController::put_TimeFence(double timeInS)
return S_OK;
}

/****************************************************************************
* IController.get_StateBlock: returns a shared memory block name which holds
* a global state block prepended by the memory block size as an unsigned int
****************************************************************************/
STDMETHODIMP CController::get_StateBlock(/*[out, retval]*/ BSTR* pVal)
{
if (!pVal)
return E_POINTER;
if (!Machine)
return E_FAIL;
if (core_getOutputState(CORE_STATE_REQMASK_ALL) == NULL)
return E_FAIL;
CComBSTR bsStateSharedMemName(TEXT("Local\\VPinMameStateBlock"));
*pVal = bsStateSharedMemName.Detach();
return S_OK;
}

/****************************************************************************
* IController.UpdateStateBlock: Update requested outputs of the global state
* block
****************************************************************************/
STDMETHODIMP CController::UpdateStateBlock(/*[in, defaultvalue(0x3F)]*/ unsigned int updateMask)
{
if (!Machine)
return E_FAIL;
if (core_getOutputState(updateMask) == NULL)
return E_FAIL;
return S_OK;
}

/****************************************************************************
* IController.Version (read-only): gets the program version of VPM
****************************************************************************/
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3 changes: 3 additions & 0 deletions src/win32com/Controller.h
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Expand Up @@ -205,6 +205,9 @@ DECLARE_PROTECT_FINAL_CONSTRUCT()
STDMETHOD(put_ModOutputType)(/*[in]*/ int output, /*[in]*/ int no, /*[in]*/ int newVal);

STDMETHOD(put_TimeFence)(/*[in]*/ double fenceIns);

STDMETHOD(get_StateBlock)(/*[out, retval]*/ BSTR* pVal);
STDMETHOD(UpdateStateBlock)(/*[in, defaultvalue(0x1F)]*/ unsigned int updateMask);
};

#endif // !defined(AFX_Controller_H__D2811491_40D6_4656_9AA7_8FF85FD63543__INCLUDED_)
2 changes: 2 additions & 0 deletions src/win32com/VPinMAME.idl
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Expand Up @@ -259,6 +259,8 @@ import "ocidl.idl";
[propget, id(88), helpstring("property ModOutputType")] HRESULT ModOutputType([in] int output, [in] int no, [out, retval] int *pVal);
[propput, id(88), helpstring("property ModOutputType")] HRESULT ModOutputType([in] int output, [in] int no, [in] int newVal);
[propput, id(89), helpstring("property TimeFence")] HRESULT TimeFence([in] double timeInS);
[propget, id(90), helpstring("property StateBlock")] HRESULT StateBlock([out, retval] BSTR* pVal);
[id(91), helpstring("method UpdateStateBlock")] HRESULT UpdateStateBlock([in, defaultvalue(0x3F)] unsigned int updateMask);
};

// WSHDlg and related interfaces
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