Re: Problem getting DC in Visual C++ 6.0

[User (Legacy)]

Try this code it may help.  Also, you may want to check how you have #import 

ed your ocx. 

 In my code I have done the following... 

#import "sfxbar.dll" named_guids no_namespace 

#import "cfx4032.ocx" named_guids no_namespace 

 _variant_t pInfo = m_spChartFX->PaintInfo(CPI_GETDC); 

 HDC handle = (HDC) pInfo.lVal; // NB. The data member of the VARIANT is a 

VT_I4 (A 4-byte integer) 

 m_spChartFX->PaintInfo(CPI_RELEASEDC); 

or using PaintInfo2() 

 VARIANT vResult; 

 m_spChartFX->PaintInfo2(CPI_GETDC, pInfo, &vResult); 

Good Luck 

Josh Eanes wrote in message ... 

>Hello, I have been having a problem trying to get a device context of a 

>chartfx object.  I am using VC++ 6.0. 

> 

>The following code is what I put in: 

> 

>   HDC hDevice; 

>    hDevice = m_pChartFX->PaintInfo(CPI_GETDC); 

> 

>Once I set this in, I get a "error C2679: binary '=' : no operator defined 

>which takes a right-hand operand of type 'class _variant_t' (or there is no 

>acceptable conversion)" error. 

> 

>Am I doing something wrong here?  This seems to be the process that the 

>example uses... 

> 

>Thank you for your help! 

>-- 

>Joshua Eanes 

> 

>PS.  I have also tried using PaintInfo2.  For example, the following code: 

> 

>  HDC hDevice; 

>  _variant_t hmel; 

>  m_pChartFX->PaintInfo2(CPI_GETDC, hmel, hDevice); 

> 

>Gives me a "error C2664: 'PaintInfo2' : cannot convert parameter 3 from 

>'struct HDC__ *' to 'struct tagVARIANT *' 

>        Types pointed to are unrelated; conversion requires 

>reinterpret_cast, C-style cast or function-style cast" error. 

> 

> 

> 

>