Steema Central

Posted: **Tue Aug 28, 2012 3:21 pm**

Hi,

I have TeeChart Pro v2012.05.120327 32bit VCL and BCB XE 2 running on Windows 7.

I created the following class:

// .h file

Code: Select all

class TMyRectangleTool : public TRectangleTool
{
protected:
	
public:

	__fastcall TMyRectangleTool(TComponent * Owner);
};

// .cpp file

Code: Select all

//---------------------------------------------------------------------------
__fastcall TMyRectangleTool::TMyRectangleTool(TComponent * Owner)
	: TRectangleTool(Owner)
{

}

There's no issue when compiled, but I'm getting the following link error. I was getting the same link error when using Windows XP as well.

[ILINK32 Error] Error: Unresolved external '__fastcall Vcltee::Teetools::TTextShape::DrawTextW(Vcltee::Teengine::TCustomAxisPanel *, System::Types::TRect&, int, int, int)' referenced from C:\MY PROJECTS BCB XE2\MY CPP\CHART TOOLS\WIN32\DEBUG\UNIT1.OBJ

Where does DrawTextW come from? How do I go around this link error?

Thanks

-Bill

Posted: **Wed Aug 29, 2012 2:12 pm**

Hi Bill,

I've just tried it with the actual version (v2012.06) in a Win7 x64 machine and the attached application seems to compile and run without problems for me here with RAD XE. Could you please give it a try?

testRectangle.zip: (85.74 KiB) Downloaded 1008 times

Posted: **Wed Aug 29, 2012 2:24 pm**

Hi Bill,

Just tried it with XE2 in the same machine and the attached project seems to build an run without problems either.
Maybe you forgot to add the "#include <VclTee.TeeTools.hpp>" in the .h?

testRectangleXE2.zip: (4.76 KiB) Downloaded 1069 times

Posted: **Wed Aug 29, 2012 3:03 pm**

Yes, it will link with no issues if it is not called. Add the line as shown below and the link error will show up.

Code: Select all

__fastcall TForm1::TForm1(TComponent* Owner)
	: TForm(Owner)
{
	new TMyRectangleTool(this);
}

Posted: **Thu Aug 30, 2012 9:06 am**

Hi Bill,

Right. But making it virtual solves the problem for me here.

Code: Select all

class TMyRectangleTool : public TRectangleTool
{
protected:
public:
	__fastcall virtual TMyRectangleTool(TComponent * Owner);
};

Posted: **Thu Aug 30, 2012 12:31 pm**

Hi,

For some reason make it virtual did not solve the link issue over here. I tried the file you sent over.

// .h file

Code: Select all

class TMyRectangleTool : public TRectangleTool
{
protected:
public:
	__fastcall virtual TMyRectangleTool(TComponent * Owner);
};

// .cpp file

Code: Select all

//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
	: TForm(Owner)
{
	new TMyRectangleTool(this);
}

I'm still getting the same link error msg.

[ILINK32 Error] Error: Unresolved external '__fastcall Vcltee::Teetools::TAnnotationTool::DrawTextW()' referenced from C:\MY PROJECTS BCB XE2\MY CPP\TESTRECTANGLE\DEBUG\WIN32\UNIT1.OBJ

In your earlier post, you said that you are using TChart v2012.06, is that a newer version?

Posted: **Thu Aug 30, 2012 1:56 pm**

Hi Bill,

Bill wrote:In your earlier post, you said that you are using TChart v2012.06, is that a newer version?

Yes. v2012.05 dates from March 2012, while v2012.06 dates from June. Give it a try if possible.

Posted: **Thu Aug 30, 2012 2:46 pm**

I've just installed the latest version of TeeChart and I still get the same link error. Would you please send me your project that compiles and links again?

Thanks

Posted: **Mon Sep 03, 2012 1:15 pm**

Hi Bill,

I'm getting confused because what I suggested you before (virtual) doesn't seem to work now in the same machine where worked before

We are studying it and we'll be back to you as soon as possible.

Posted: **Thu Nov 15, 2012 2:48 pm**

This issue still not resolved in the latest version: TeeChart Pro v2012.07.121105 32 bit VCL !

Posted: **Fri Nov 16, 2012 9:47 am**

Hi Bill,

This seems to come from a bug in C++ XE, XE2 and probably XE3 too:
http://stackoverflow.com/questions/6205 ... link-error

We're investigating if we can find a workaround.

Posted: **Fri Oct 10, 2014 11:33 am**

Hi,

I need to reopen this thread because the problem is still alive. I've been working the last few days importing from C++ Builder 2007 to Builder XE7. After struggling a lot of compile and link problems, I'm halted on this one. Here's again:

[ilink32 Error] Error: Unresolved external '__fastcall Vcltee::Teetools::TAnnotationTool::DrawTextW()' referenced from D:\......\TESTRECTANGLEXE2\WIN32\DEBUG\UNIT1.OBJ

I've downloaded the testRectangleXE2.zip and create an instance of the class derived from TAnnotationTool but it still happens. I believe it is an TeeChart issue.

Any solution or workaround???

I'm working with Builder XE 7 and TeeChart v2014 32-bit VCL (both trials).
I'm afraid I'm standing on Builder 2007 and TeeChart 7 if I can't use my own TeeTools .

Posted: **Fri Oct 10, 2014 3:37 pm**

Hello,

Found another answer at StackOverflow that seems to workaround this.
If I open VCLTee.TeeTools.hpp I go to the definition of DrawText for the TAnnotationTool:

Code: Select all

class PASCALIMPLEMENTATION TAnnotationTool : public Vcltee::Teengine::TTeeCustomTool
//...
    void __fastcall DrawText(Vcltee::Teengine::TCustomAxisPanel* const AParent)/* overload */;

And I undefine DrawText before it, having this:

Code: Select all

class PASCALIMPLEMENTATION TAnnotationTool : public Vcltee::Teengine::TTeeCustomTool
//...
#ifdef DrawText
#undef DrawText
#endif
    void __fastcall DrawText(Vcltee::Teengine::TCustomAxisPanel* const AParent)/* overload */;

It seems to work fine for me here with TeeChart v2014.12 and RAD XE7.

Posted: **Tue Oct 14, 2014 10:08 am**

Thank you Yeray,

It works fine for me too. At least, compiling and running the simple testRectangleXE2.zip. Now, I can also compile my own Tee Tools but I can't assure that it works or crashes at running time because I'm still correcting other running time errors starting the big application using those tools.

Posted: **Wed Oct 15, 2014 9:31 am**

Hello,

I'm afraid this is the only workaround I can think on.
As a final solution, we've renamed DrawText to DoDrawText in TeeTools.pas to avoid that conflict with Windows API in C++ in the next maintenance release.

Steema Central

Unresolved external with Teetools::TTextShape::DrawTextW

Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW

Re: Unresolved external with Teetools::TTextShape::DrawTextW