public MTAPISmokeTest()
{
_appHelper = new AppHelper();
//_MTSDK = new MathTypeSDK();
_MTSDK = MathTypeSDK.Instance;
_isMTAPIConnected = false;
InitializeComponent();
}
override public bool GetMTEF()
{
bool bReturn = false;
if (!sdk.Init())
{
return(bReturn);
}
IDataObject dataObject = MathTypeSDK.getIDataObject();
if (dataObject == null)
{
sdk.DeInit();
return(bReturn);
}
FORMATETC formatEtc = new FORMATETC();
STGMEDIUM stgMedium = new STGMEDIUM();
try
{
// Setup the formatting information to use for the conversion.
formatEtc.cfFormat = (Int16)DataFormats.GetFormat(strInTrans).Id;
formatEtc.dwAspect = DVASPECT.DVASPECT_CONTENT;
formatEtc.lindex = -1;
formatEtc.ptd = (IntPtr)0;
formatEtc.tymed = TYMED.TYMED_HGLOBAL;
// Setup the MathML content to convert
stgMedium.unionmember = Marshal.StringToHGlobalAuto(strEquation);
stgMedium.tymed = TYMED.TYMED_HGLOBAL;
stgMedium.pUnkForRelease = 0;
// Perform the conversion
dataObject.SetData(ref formatEtc, ref stgMedium, false);
// Set the format for the output
formatEtc.cfFormat = (Int16)DataFormats.GetFormat("MathType EF").Id;
formatEtc.dwAspect = DVASPECT.DVASPECT_CONTENT;
formatEtc.lindex = -1;
formatEtc.ptd = (IntPtr)0;
formatEtc.tymed = TYMED.TYMED_ISTORAGE;
// Create a blank data structure to hold the converted result.
stgMedium = new STGMEDIUM();
stgMedium.tymed = TYMED.TYMED_NULL;
stgMedium.pUnkForRelease = 0;
// Get the conversion result in MTEF format
dataObject.GetData(ref formatEtc, out stgMedium);
}
catch (COMException e)
{
Console.WriteLine("MathML conversion to MathType threw an exception: " + Environment.NewLine + e.ToString());
sdk.DeInit();
return(bReturn);
}
// The pointer now becomes a Handle reference.
HandleRef handleRef = new HandleRef(null, stgMedium.unionmember);
try
{
// Lock in the handle to get the pointer to the data
IntPtr ptrToHandle = MathTypeSDK.GlobalLock(handleRef);
// Get the size of the memory block
m_iMTEF_Length = MathTypeSDK.GlobalSize(handleRef);
// New an array of bytes and Marshal the data across.
m_bMTEF = new byte[m_iMTEF_Length];
Marshal.Copy(ptrToHandle, m_bMTEF, 0, m_iMTEF_Length);
m_strMTEF = System.Text.ASCIIEncoding.ASCII.GetString(m_bMTEF);
bReturn = true;
}
catch (Exception e)
{
Console.WriteLine("Generation of image from MathType failed: " + Environment.NewLine + e.ToString());
}
finally
{
MathTypeSDK.GlobalUnlock(handleRef);
}
sdk.DeInit();
return(bReturn);
}
