Name
draw_linedraw_lineDrawLinedraw_lineDrawLineDrawLine — Draw a line.
draw_linedraw_lineDrawLinedraw_lineDrawLineDrawLine returns the parameter for a line, which has been
created interactively by the user in the window.
To create a line you have to press the left mouse button determining a start point
of the line. While keeping the button pressed you may “drag” the line in
any direction. After another mouse click in the middle of the created line
you can move it.
If you click on one end point of the created line, you may move this point.
Pressing the right mouse button terminates the procedure. On macOS
draw_linedraw_lineDrawLinedraw_lineDrawLineDrawLine can also be terminated by pressing the escape key.
After terminating the procedure the line is not visible in the window any longer.
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Row index of the first point of the line.
Column index of the first point of the line.
Row index of the second point of the line.
Column index of the second point of the line.
draw_line(WindowHandle,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)
draw_line(WindowHandle,&Row1,&Column1,&Row2,&Column2) ;
disp_line(WindowHandle,Row1,Column1,Row2,Column2) ;
draw_line(WindowHandle,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)
draw_line(WindowHandle,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)
draw_line(WindowHandle,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)
draw_line(WindowHandle,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)
draw_linedraw_lineDrawLinedraw_lineDrawLineDrawLine returns 2 (H_MSG_TRUE), if the window is valid and the
needed drawing mode (see set_insertset_insertSetInsertset_insertSetInsertSetInsert) is available.
If necessary, an exception is raised.
open_windowopen_windowOpenWindowopen_windowOpenWindowOpenWindow
reduce_domainreduce_domainReduceDomainreduce_domainReduceDomainReduceDomain,
disp_linedisp_lineDispLinedisp_lineDispLineDispLine,
set_coloredset_coloredSetColoredset_coloredSetColoredSetColored,
set_line_widthset_line_widthSetLineWidthset_line_widthSetLineWidthSetLineWidth,
set_drawset_drawSetDrawset_drawSetDrawSetDraw,
set_insertset_insertSetInsertset_insertSetInsertSetInsert
draw_line_moddraw_line_modDrawLineModdraw_line_modDrawLineModDrawLineMod,
gen_rectangle1gen_rectangle1GenRectangle1gen_rectangle1GenRectangle1GenRectangle1,
draw_circledraw_circleDrawCircledraw_circleDrawCircleDrawCircle,
draw_ellipsedraw_ellipseDrawEllipsedraw_ellipseDrawEllipseDrawEllipse,
set_insertset_insertSetInsertset_insertSetInsertSetInsert
Foundation