Getting a compilation error in VS2010 by following the first hello world example

Question

i just started learning MFC..found a tutorial here http://bit.ly/j2uhHO ..just tried the same thing in VS2010 but getting a compilation error in this code..

void CChildView::OnPaint() 
{

    CPaintDC dc(this); // device context for painting

    dc.TextOut(0, 0, "Hello, world!");

    // TODO: Add your message handler code here

    // Do not call CWnd::OnPaint() for painting messages
}

And the error is:

error C2664: 'BOOL CDC::TextOutW(int,int,const CString &)' : cannot convert parameter 3 from 'const char [14]' to 'const CString &'

Can anyone solve this and suggest some mfc tutorials please..thank u..

score 3 · Accepted Answer · edited May 23 '17 at 11:47

3

The error tells you whats exactly wrong.

error C2664: 'BOOL CDC::TextOutW(int,int,const CString &)' : cannot convert parameter 3 from 'const char [14]' to 'const CString &'

TextOutW() is expecting const CString & as the third parameter and you are passing const char [14]

You need to do:

dc.TextOut(0, 0, L"Hello, world!");

Which passes the third argument in the format desired by the function.

For MFC resources to refer, you see this.

edited May 23 '17 at 11:47

Community

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answered May 13 '11 at 08:36

Alok Save

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Thank u very much..can u suggest me some good MFC tutorials for beginers beginners – harish May 13 '11 at 08:38

score 1 · Answer 2 · answered May 13 '11 at 08:34

1

The problem is that Windows by default uses wide characters wchar_t for texts. You would need

    dc.TextOut(0, 0, L"Hello, world!");

answered May 13 '11 at 08:34

Bo Persson

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Getting a compilation error in VS2010 by following the first hello world example

2 Answers2