In the call loop of DrawText, the rc vertical coordinate is also changed, but why is it always drawn at the same positio

sd2235885

Which expert can explain to me

memDC.SelectObject (&DetailFont);
rc.SetRect (nLeft, yAxis, nRight, yAxis + yPix * 5);
yAxis = yAxis + yPix * 5;
memDC.DrawText ((LPCTSTR) csViewTemp,&rc, DT_LEFT | DT_VCENTER | DT_SINGLELINE);

In other loops
memDC.SelectObject (&DetailFont);
rc.SetRect (nLeft, yAxis, nRight, yAxis + yPix * 5);
yAxis = yAxis + yPix * 5;
memDC.DrawText ((LPCTSTR) csViewTemp.Mid (0, 66),&rc, DT_LEFT | DT_VCENTER | DT_SINGLELINE);

sd2235885

And the distance is sufficient

Should not be covered

But it turned out that the first

Only the second drawn string can appear

wangjiawu

Because there is such a setting: DT_LEFT | DT_VCENTER | DT_SINGLELINE

So it always shows in one place

kk1370

Does yPix cycle from 0?
A little more code posts

sd2235885

yPix is ​​the number of pixels of 1mm


DT_LEFT is horizontal from left
DT_VCENTER is centered vertically
DT_SINGLELINE is a single line

kk1370

The piece of code you posted is not wrong
I want to see how your loop code is written

sd2235885

doubleByte = csViewTemp.GetAt (subIndex);
// Judge whether it is a Chinese character
if (IsDBCSLeadByte (doubleByte)! = 0)
{
   if (subIndex == 0)
   {
       subIndex = subIndex + 1;
   }
   else if (subIndex! = 65&&subIndex! = 66)
{
subIndex = subIndex + 1;
}
else if (subIndex == 66)
{
memDC.SelectObject (&DetailFont);
rc.SetRect (nLeft, yAxis, nRight, yAxis + yPix * 5);
yAxis = yAxis + yPix * 5;
memDC.DrawText ((LPCTSTR) csViewTemp.Mid (0, 66),&rc, DT_LEFT | DT_VCENTER | DT_SINGLELINE);
csViewTemp.Delete (0, 66);
subIndex = 0;
}
else
{
memDC.SelectObject (&DetailFont);
rc.SetRect (nLeft, yAxis, nRight, yAxis + yPix * 5);
yAxis = yAxis + yPix * 5;
memDC.DrawText ((LPCTSTR) csViewTemp.Mid (0, 67),&rc, DT_LEFT | DT_VCENTER | DT_SINGLELINE);
csViewTemp.Delete (0, 67);
subIndex = 0;
}
Ranch
}
else
{
if (subIndex == 0)
{
}
else if (subIndex == 66)
{
memDC.SelectObject (&DetailFont);
rc.SetRect (nLeft, yAxis, nRight, yAxis + yPix * 5);
yAxis = yAxis + yPix * 5;
memDC.DrawText ((LPCTSTR) csViewTemp.Mid (0, 67),&rc, DT_LEFT | DT_VCENTER | DT_SINGLELINE);
csViewTemp.Delete (0, 67);
subIndex = 0;
}
}
if (csViewTemp.GetLength () <= 67)
{memDC.SelectObject (&DetailFont);
rc.SetRect (nLeft, yAxis, nRight, yAxis + yPix * 5);
yAxis = yAxis + yPix * 5;
memDC.DrawText ((LPCTSTR) csViewTemp,&rc, DT_LEFT | DT_VCENTER | DT_SINGLELINE);
subIndex = csViewTemp.GetLength ();
}

sd2235885

Too much
Formatting is too laborious

Let's make it up

sd2235885

Why isn't there an admiration?

kk1370

Dizzy, or haven't seen you cycle?