ClassesClasses | | Operators

draw_line_moddraw_line_modDrawLineModDrawLineMod (Operator)

Name

draw_line_moddraw_line_modDrawLineModDrawLineMod — Draw a line.

Signature

draw_line_mod( : : WindowHandle, Row1In, Column1In, Row2In, Column2In : Row1, Column1, Row2, Column2)

Herror draw_line_mod(const Hlong WindowHandle, double Row1In, double Column1In, double Row2In, double Column2In, double* Row1, double* Column1, double* Row2, double* Column2)

Herror T_draw_line_mod(const Htuple WindowHandle, const Htuple Row1In, const Htuple Column1In, const Htuple Row2In, const Htuple Column2In, Htuple* Row1, Htuple* Column1, Htuple* Row2, Htuple* Column2)

void DrawLineMod(const HTuple& WindowHandle, const HTuple& Row1In, const HTuple& Column1In, const HTuple& Row2In, const HTuple& Column2In, HTuple* Row1, HTuple* Column1, HTuple* Row2, HTuple* Column2)

void HWindow::DrawLineMod(double Row1In, double Column1In, double Row2In, double Column2In, double* Row1, double* Column1, double* Row2, double* Column2) const

static void HOperatorSet.DrawLineMod(HTuple windowHandle, HTuple row1In, HTuple column1In, HTuple row2In, HTuple column2In, out HTuple row1, out HTuple column1, out HTuple row2, out HTuple column2)

void HWindow.DrawLineMod(double row1In, double column1In, double row2In, double column2In, out double row1, out double column1, out double row2, out double column2)

Description

draw_line_moddraw_line_modDrawLineModDrawLineModDrawLineMod returns the parameter for a line, which has been created interactively by the user in the window.

To create a line are expected the coordinates of the start point Row1InRow1InRow1InRow1Inrow1In, Column1InColumn1InColumn1InColumn1Incolumn1In and of the end point Row2InRow2InRow2InRow2Inrow2In,Column2InColumn2InColumn2InColumn2Incolumn2In. If you click on one end point of the created line, you may move this point. After another mouse click in the middle of the created line you can move it.

Pressing the right mouse button terminates the procedure. On macOS draw_line_moddraw_line_modDrawLineModDrawLineModDrawLineMod can also be terminated by pressing the escape key.

After terminating the procedure the line is not visible in the window any longer.

Execution Information

Parameters

WindowHandleWindowHandleWindowHandleWindowHandlewindowHandle (input_control)  window HWindow, HTupleHTupleHtuple (integer) (IntPtr) (Hlong) (Hlong)

Window handle.

Row1InRow1InRow1InRow1Inrow1In (input_control)  line.begin.y HTupleHTupleHtuple (real) (double) (double) (double)

Row index of the first point of the line.

Column1InColumn1InColumn1InColumn1Incolumn1In (input_control)  line.begin.x HTupleHTupleHtuple (real) (double) (double) (double)

Column index of the first point of the line.

Row2InRow2InRow2InRow2Inrow2In (input_control)  line.end.y HTupleHTupleHtuple (real) (double) (double) (double)

Row index of the second point of the line.

Column2InColumn2InColumn2InColumn2Incolumn2In (input_control)  line.end.x HTupleHTupleHtuple (real) (double) (double) (double)

Column index of the second point of the line.

Row1Row1Row1Row1row1 (output_control)  line.begin.y HTupleHTupleHtuple (real) (double) (double) (double)

Row index of the first point of the line.

Column1Column1Column1Column1column1 (output_control)  line.begin.x HTupleHTupleHtuple (real) (double) (double) (double)

Column index of the first point of the line.

Row2Row2Row2Row2row2 (output_control)  line.end.y HTupleHTupleHtuple (real) (double) (double) (double)

Row index of the second point of the line.

Column2Column2Column2Column2column2 (output_control)  line.end.x HTupleHTupleHtuple (real) (double) (double) (double)

Column index of the second point of the line.

Example (HDevelop)

draw_line_mod(WindowHandle,10,20,55,124,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)

Example (C)

draw_line(WindowHandle,10,20,55,124,&Row1,&Column1,&Row2,&Column2) ;
disp_line(WindowHandle,Row1,Column1,Row2,Column2) ;

Example (HDevelop)

draw_line_mod(WindowHandle,10,20,55,124,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)

Example (HDevelop)

draw_line_mod(WindowHandle,10,20,55,124,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)

Example (HDevelop)

draw_line_mod(WindowHandle,10,20,55,124,Row1,Column1,Row2,Column2)
gen_contour_polygon_xld (Line, [Row1,Row2], [Column1,Column2])
dev_display (Line)

Result

draw_line_moddraw_line_modDrawLineModDrawLineModDrawLineMod returns 2 (H_MSG_TRUE), if the window is valid and the needed drawing mode is available. If necessary, an exception is raised.

Possible Predecessors

open_windowopen_windowOpenWindowOpenWindowOpenWindow

Possible Successors

reduce_domainreduce_domainReduceDomainReduceDomainReduceDomain, disp_linedisp_lineDispLineDispLineDispLine, set_coloredset_coloredSetColoredSetColoredSetColored, set_line_widthset_line_widthSetLineWidthSetLineWidthSetLineWidth, set_drawset_drawSetDrawSetDrawSetDraw, set_insertset_insertSetInsertSetInsertSetInsert

Alternatives

draw_linedraw_lineDrawLineDrawLineDrawLine, draw_ellipsedraw_ellipseDrawEllipseDrawEllipseDrawEllipse, draw_regiondraw_regionDrawRegionDrawRegionDrawRegion

See also

gen_circlegen_circleGenCircleGenCircleGenCircle, draw_rectangle1draw_rectangle1DrawRectangle1DrawRectangle1DrawRectangle1, draw_rectangle2draw_rectangle2DrawRectangle2DrawRectangle2DrawRectangle2

Module

Foundation


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