custom indicator crashes app

[varontron]

Hi,
Attempting to load _really_ simple (like one horiz. line) indicators in FT2 crashes the app.

I assume it's because Delphi is compiling with the old FT1 libs.

If true, can you recommend the best proc for resolving--I'd like to avoid a teardown. If false, what could it be? I'm stumped.

Thx,
dv

[Terranin]

Hi,
Attempting to load _really_ simple (like one horiz. line) indicators in FT2 crashes the app.

I assume it's because Delphi is compiling with the old FT1 libs.

If true, can you recommend the best proc for resolving--I'd like to avoid a teardown. If false, what could it be? I'm stumped.

Thx,
dv

It is not a compillation problem I think, maybe some problems in code. Send your source code and I will see.

[varontron]

Hi,

I sent a bug report from the crash.

Here is the code that caused the crash:

Code: Select all

library TestIndicator;
uses
// use interace unit
IndicatorInterfaceUnit;

//var
//i: Integer;
// external parameters

procedure Init; stdcall;

begin

end;

procedure Calculate(index: integer); stdcall;

begin
Print('test');


end;

exports

Init, Calculate;

end.


It compiled and installed without error. Adding it to the chart--no go.

Thx,
dv

[Terranin]

Hi,

I sent a bug report from the crash.

Here is the code that caused the crash:

Code: Select all

library TestIndicator;
uses
// use interace unit
IndicatorInterfaceUnit;

//var
//i: Integer;
// external parameters

procedure Init; stdcall;

begin

end;

procedure Calculate(index: integer); stdcall;

begin
Print('test');


end;

exports

Init, Calculate;

end.


It compiled and installed without error. Adding it to the chart--no go.

Thx,
dv

Init procedure is not complete, you should at least have following lines:

IndicatorShortName(<Indicator name>);
SetOutputWindow(ow_ChartWindow);

[varontron]

Hi,

Thanks for the tip. I added the lines as you suggested--unfortunately, no luck.

I sent another bug report, fwiw.

thx,
dv

[Terranin]

Hi,

Thanks for the tip. I added the lines as you suggested--unfortunately, no luck.

I sent another bug report, fwiw.

thx,
dv

Ok, I compiled your indicator, it needs one more line in Init - IndicatorBuffers(0);

[varontron]

You have the magic touch. Thanks!

For clarity, here is what worked:

Code: Select all

library TestIndicator;
uses
// use interace unit
IndicatorInterfaceUnit;

//var
//i: Integer;
// external parameters

procedure Init; stdcall;
begin
IndicatorShortName('test');
SetOutputWindow(ow_ChartWindow);
IndicatorBuffers(0);
end;

procedure Calculate(index: integer); stdcall;
begin
Print('test');
end;

exports
Init, Calculate;

end.


Thanks again!