draw_line_modT_draw_line_modDrawLineModDrawLineModdraw_line_mod (算子)
名称
draw_line_modT_draw_line_modDrawLineModDrawLineModdraw_line_mod — 画一条线。
签名
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)
描述
draw_line_moddraw_line_modDrawLineModDrawLineModDrawLineModdraw_line_mod 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
Row1InRow1InRow1InRow1Inrow1Inrow_1in, Column1InColumn1InColumn1InColumn1Incolumn1Incolumn_1in and of the end point
Row2InRow2InRow2InRow2Inrow2Inrow_2in,Column2InColumn2InColumn2InColumn2Incolumn2Incolumn_2in.
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.
After terminating the procedure the line is not visible in the window any longer.
注意
If used in a buffer window, mouse events have to be supplied by the
application, while the draw operator must be run in another thread.
执行信息
- 多线程类型：可重入（与非独占算子并行运行）。
- 多线程作用域：全局（可从任何线程调用）。
- 未采用并行化处理。
参数
WindowHandleWindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (输入控制) window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
窗口句柄。
Row1InRow1InRow1InRow1Inrow1Inrow_1in (输入控制) line.begin.y → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Row index of the first point of the line.
Column1InColumn1InColumn1InColumn1Incolumn1Incolumn_1in (输入控制) line.begin.x → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Column index of the first point of the line.
Row2InRow2InRow2InRow2Inrow2Inrow_2in (输入控制) line.end.y → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Row index of the second point of the line.
Column2InColumn2InColumn2InColumn2Incolumn2Incolumn_2in (输入控制) line.end.x → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Column index of the second point of the line.
Row1Row1Row1Row1row1row_1 (输出控制) line.begin.y → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Row index of the first point of the line.
Column1Column1Column1Column1column1column_1 (输出控制) line.begin.x → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Column index of the first point of the line.
Row2Row2Row2Row2row2row_2 (输出控制) line.end.y → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Row index of the second point of the line.
Column2Column2Column2Column2column2column_2 (输出控制) line.end.x → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Column index of the second point of the line.
示例（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)
示例（C）
draw_line(WindowHandle,10,20,55,124,&Row1,&Column1,&Row2,&Column2);
disp_line(WindowHandle,Row1,Column1,Row2,Column2);
示例（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)
示例（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)
示例（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)
结果
draw_line_moddraw_line_modDrawLineModDrawLineModDrawLineModdraw_line_mod returns 2 (
H_MSG_TRUE)
, if the window is valid and the
needed drawing mode is available。如有必要，则抛出异常。
可能的前趋
open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window
可能的后继
reduce_domainreduce_domainReduceDomainReduceDomainReduceDomainreduce_domain,
disp_linedisp_lineDispLineDispLineDispLinedisp_line,
set_coloredset_coloredSetColoredSetColoredSetColoredset_colored,
set_line_widthset_line_widthSetLineWidthSetLineWidthSetLineWidthset_line_width,
set_drawset_drawSetDrawSetDrawSetDrawset_draw,
set_insertset_insertSetInsertSetInsertSetInsertset_insert
替代
draw_linedraw_lineDrawLineDrawLineDrawLinedraw_line,
draw_ellipsedraw_ellipseDrawEllipseDrawEllipseDrawEllipsedraw_ellipse,
draw_regiondraw_regionDrawRegionDrawRegionDrawRegiondraw_region
另见
gen_circlegen_circleGenCircleGenCircleGenCirclegen_circle,
draw_rectangle1draw_rectangle1DrawRectangle1DrawRectangle1DrawRectangle1draw_rectangle1,
draw_rectangle2draw_rectangle2DrawRectangle2DrawRectangle2DrawRectangle2draw_rectangle2
模块
基础