I upgrade my application to BCB 4.0, it use ChartFX 3.0 licence version,
not the one come with BCB , it works fine in BCB 3.0, but in BCB 4.0,
the CloseData method get a access error, but if I dont use CloseData
method , it will not repaint.

Victor,

What type of error are you seeing? An Access Violation error or a 'nicely'
handled exception.

I'm not familiar with the ChartFX control itself but I'm involved with the
code exposing OCX methods in the IDE and will be happy to investigate if I
can get a hold of the control.

Regards,

Bruneau.

PS: I'm assuming you re-imported the Control via the Import|ActiveX Control
of C++Builder v4 to have it show up on the palette, right?

I use ChartFx 3.0.350,a release version,it works fine in BCB 3.0.
The error message is
    Access violation at address 004045E5 in module 'project1.exe'.write of
address 006A0000.

this is my program code:
    int i;
    ChartFX1->OpenDataEx(COD_CONSTANTS,3,0);
    for (i=0;i<3;i++)
    {
        ChartFX1->Const[i]=i*15+20;
    }
    ChartFX1->CloseData(COD_CONSTANTS);

and this is the OpenDataEx,CloseData method BCB import from cfx32.ocx. I copy
it from ChartfxLib_OCX.cpp.

TCOMIChartFX __fastcall TChartFX::GetControlInterface(void)
{
  CreateControl();
  return m_OCXIntf;

long __fastcall TChartFX::OpenDataEx(short nType/*[in]*/, long n1/*[in]*/, long
n2/*[in]*/)
{
  return GetControlInterface().OpenDataEx(nType/*[in]*/, n1/*[in]*/,
n2/*[in]*/);

TOLEBOOL __fastcall TChartFX::CloseData(short nType/*[in]*/)
{
  return GetControlInterface().CloseData(nType/*[in]*/);

Did you try to import the control in BCB4 ? I suspect you are using
sources created by importing the control in BCB3.

Alex

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Yes,I am import the control in BCB 4.0, if I use the source created by
Tlibimp(fixed) in BCB 3.0,it give me many compile errors.

Thanks
    I have get reply from ChartFX, it bug of TLIBIMP in BCB 4.0,,this is
their reply:

There is a bug in BCB 4.0 that shows in Chart FX 3.0 when you use methods
that return a BOOLEAN like CloseData.

The workaround that I found is to go directly to the CloseData call as
follows:

    TOLEBOOL b;
    ChartFX1->GetControlInterface()->CloseData(YOURCOD,&b);

In order to be able to do this, you need to make GetControlInterface
public
in ChartfxLib_OCX.h.

Victor,

I suggest you submit your findings, togethre with a small sample to
Borland via bug submission form off of www.borland.com
Thanx,
Alex

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