How to set richedit ctrl full line's background color?

I've googled to set the background color of the text using following code

Code:

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CHARFORMAT2 cf;
cf.cbSize = sizeof(cf);
cf.dwMask = CFM_BACKCOLOR;
cf.dwEffects = CFE_PROTECTED;
cf.crBackColor = m_crBkTwo;
m_edText.SendMessage(EM_SETCHARFORMAT, (WPARAM)SCF_SELECTION|SCF_WORD,
        (LPARAM)&cf);

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But the effect is just setting background color of inserting text, not full line,
Is there some way to set full line using the color?

You don't want to set the entire background right?

Quote:

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Originally Posted by pm44xl22

You don't want to set the entire background right?

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Sorry for my late reply, timezone reason!

No, I don't want to set the entire background. I just want to set color in entire line only!

So maybe richedit control can't do that?