Cstrings _data while forming="HTTP://https://bbs.csdn.net/topics/the People's Republic NBDZT";//need to print the data
DrawText - & gt; DT_WORDBREAK | DT_EDITCONTROL | DT_LEFT | DT_NOPREFIX print way

Print goals:
The People's Republic in nb
DZT

The actual printing results:
The People's Republic of China
NBDZT

To solve the problem: if there is space left behind in Chinese, let English not line ahead of time,

Prerequisite: don't adjust the printing area, fixed font adjustment, both in English and Chinese word wrap and continuous

CodePudding user response:

DrawText DT_CALCRECT using parameters, can return to need the size of the drawing area,
Can increase char, calculate the size of a suitable length and sectional output

CodePudding user response:

Thank the moderator, but the current problems in the way you said to do should be more troublesome,

Is facing the problem: in a 13 mm x 40 mm area to print 1 ~ 7 data, each data of 8 ~ 92 characters,
Printing solutions: using \ n joining together every piece of data, and then use the DT_CALCRECT can calculate the full size of print data, then once a complete variable data printing,

I mention above problems, however, leads to waste print height, solution how to solve the above problems, or have any way to avoid,

CodePudding user response:

Then output their word by word line breaks

 
Void CSDI3View: : ontouch * pDC (CDC) 
{
CSDI3Doc * pDoc=GetDocument (); 
ASSERT_VALID (pDoc); 
if (! PDoc) 
return; 

Cstrings STR=_T (" ABCDEFGHIJKLMNOPQRSTUVWXYZ of the People's Republic of China ") 
_T (" \ n ABCDEFGHIJKLMNOPQRSTUVWXYZ of the People's Republic of China "); 

//boundary 
CRect rcBound; 
GetClientRect (& amp; RcBound); 

//get line height attribute 
The TEXTMETRIC txMetric; 
PDC - & gt; GetTextMetrics (& amp; TxMetric); 
Int iLineHeight=txMetric. TmHeight; 

//x, y 
Int x=rcBound left, sy=rcBound. Top; 
For (int n=0; N{
Cstrings s; S=STR [n]. 

//force line breaks 
If (s==_T (' \ n ')) 
{
Sx=rcBound. Left; 
Sy +=iLineHeight; 
continue; 
} 

//calculate character area 
CRect rcTxt (sx, sy, 0, 0); 
PDC - & gt; DrawText (s, 1, rcTxt, DT_CALCRECT); 

//over the border exit map 
If (rcTxt. Bottom & gt; RcBound. Bottom) 
{
break; 
} 

//more than right boundary line 
If (rcTxt. Right & gt; RcBound. Right) 
{
Sx=rcBound. Left; 
Sy +=iLineHeight; 

//next redraw the current character 
N -; 
continue; 
} 

//output characters 
PDC - & gt; TextOut (sx, sy, s, 1); 

//modify coordinates 
Sx=rcTxt. Right; 
} 

} 

CodePudding user response:

Simple solution is to use monospaced font, and then fixed length insert a newline