dev_set_line_width (Operator)

Name

dev_set_line_width — Define the line width for region contour output.

Synopsis

dev_set_line_width( : : LineWidth : )

Description

dev_set_line_width defines the line width (in pixel) that is used to display region contours (in 'margin' mode), XLDs, and other geometric output (e.g., disp_region, disp_line, etc.).

For more information see the description of the operator set_line_width. However, in contrast to that operator the new line width is also used for all new graphics windows that are opened afterwards.

Attention

Using the code export feature of HDevelop, the code that is generated for this operator may have a different behavior than the related HALCON operator. For a detailed description of the code export of HDevelop graphics operators into the different programming languages see in the “HDevelop User's Guide” the chapter Code Export -> General Aspects of Code Generation -> Graphics Windows.

Parameters

LineWidth (input_control)	integer → (integer)
Line width for region output in contour mode.
Default value: 1
Restriction: LineWidth >= 1

Example

read_image(Image,'monkey')
threshold(Image,Region,128,255)
dev_set_draw('margin')
dev_set_line_width(5)
dev_clear_window ()
dev_display(Region)

Result

If the values of the specified parameters are correct dev_set_line_width returns 2 (H_MSG_TRUE). Otherwise an exception is raised and an error code returned.

Possible Successors

dev_display

See also

set_line_width, query_line_width

Module

Foundation