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I have tried to use the PatBlt function, but it doesn't work.What I have tried to do is : &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
MyObject::Draw(CDC* pDC)<br />
{<br />
....<br />
CBrush myBrush = pDC-&gt;SelectBrush(backgroun<wbr />dBrush);<br />
CSize &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;TextSize = pDC-&gt;GetTextExtent(myText)<wbr />;<br />
pDC-&gt;TextOut(x,y, myText);<br />
pDC-&gt;PatBlt(x,y,TextSize.c<wbr />x,TextSIze<wbr />.cy,PATINV<wbr />ERT)<br />
}<br />
The function Draw is called twice : one for drawing, one for erasing, and it doesn't work properly<br />

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I have tried to use the PatBlt function, but it doesn't work.What I have tried to do is :            
MyObject::Draw(CDC* pDC)
{
....
CBrush myBrush = pDC->SelectBrush(backgroundBrush);
CSize      TextSize = pDC->GetTextExtent(myText);
pDC->TextOut(x,y, myText);
pDC->PatBlt(x,y,TextSize.cx,TextSIze.cy,PATINVERT)
}
The function Draw is called twice : one for drawing, one for erasing, and it doesn't work properly


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I am using the Xor function behavior in a device context with the following method: CDC::SetROP2(XORPEN). It works quite well as far as drawing lines is concerned, but doesn't work with &nbsp;text.<br />
My problem is that I want this behavior for a line and a text simultaneously. How is it possible?<br />
Thanks, Nicolas,
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I am using the Xor function behavior in a device context with the following method: CDC::SetROP2(XORPEN). It works quite well as far as drawing lines is concerned, but doesn't work with  text.
My problem is that I want this behavior for a line and a text simultaneously. How is it possible?
Thanks, Nicolas,

Xor function behavior

Kernel and system programming is the process of creating the software necessary for a computer or device to function and operate other programs. Some operating systems (such as Microsoft Windows) are proprietary, but others, such as the various Linux distributions, are open source.