[nutty boy]

Hi Guys
I wrore a simple VC "single document" interface program with MS VS_2005
when i wrote the following code

void CFirstView::OnDraw(CDC* pDC)
{
	CFirstDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
      CString hello_string="Hi This is my 1st Document View";
	// TODO: add draw code for native data here
	pDC->TextOutW(0,0,hello_string,hello_string.GetLength());
	
}

and copiled my program i get the error message below

c:\documents and settings\falcon eyes\my documents\visual studio 2005\projects\first\first\firstview.cpp(54) 
:error C2440:'initializing' : cannot convert from 'const char [32]' to 'ATL::CStringT<BaseType,StringTraits>'
1>with
1>[
1>BaseType=wchar_t,
1>StringTraits=StrTraitMFC_DLL<wchar_t>
1>]
1>Constructor for class 'ATL::CStringT<BaseType,StringTraits>' is declared 'explicit'
1>with
1>[
1>BaseType=wchar_t,
1>StringTraits=StrTraitMFC_DLL<wchar_t>

does any one know why i'm getting an error message and what's the solution

[shabbir]

You need to be providing the TCHAR

There are 2 way to get out of it.
1. Have the hello_string declared as TCHAR array
2. Instead of passing the CString use the GetBuffer function to have the char array and then after the function returns use the ReleaseBuffer.

[nutty boy]

Hi shabbir
1st thanks for ur reply 2nd could u please give me more details
what u mean by TCHAR array if u have any document about that or any usefull websites link

and how can i declare my string as TCHAR array

alsow

could u pls write the code for how to pass a string using the GetBuffer
Forgiveme i'm still learning how to program

[shabbir]

TCHAR is nothing but declaring char array. Something Like TCHAR *str ="Your string"; or even TCHAR str[] ="Your String";

For GetBuffer it should be something like

CString hello_string="Hi This is my 1st Document View";
pDC->TextOutW(0,0,hello_string.GetBuffer(),hello_string.GetLength()  );
hello_string.ReleaseBuffer();

I thought I was clear enough with the above post and so not gave any example.

[nutty boy]

thanks for concern

[nutty boy]

Pls shabbir
when i wrote the code

TCHAR hello_string="Hi This is my 1st Document View";
// TODO: add draw code for native data here
pDC->TextOutW(0,0,hello_string,32);
I got this error message

error C2440: 'initializing' : cannot convert from 'const char [32]' to 'TCHAR'
is there's some wrong i did

[shabbir]

Try making the TCHAR const or as of now you can go for something like const char as well because you dont need to confuse what is T there.

[nutty boy]

I changed the properties of my project as below
General -> charcter set -> not set
and i used TextOutA function and it works although there's warnning message
Thanks