**CIGAL Reference Manual, Chapter 6 (RealTime): r_sread**
===== r_sread -- Read a block of data from the screen =====
**usage: r_sread opflg eflag ltime    Data BoxRect Flg StereoFlg**

Copy a block of image data to a variable's data buffer directly from the
screen's video memory. The amount of data to be copied and where it comes
from on the screen are both determined by the size of the rectangle
specified by BOXRECT.

Note: If the DATA variable is specified to auto-increment (e.g. buf++) its
pointer is incremented by the size of the entire read (i.e., the
entire BOXRECT rectangle).

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:manual:chapter6|RealTime List]], 
[[jvs:cigal:manual:help|Manual Help]]