dev_close_window🔗
Short description🔗
dev_close_window — Close the active floating graphics window.
Signature🔗
dev_close_window( )
Description🔗
dev_close_window closes the active floating graphics window.
The operator is equivalent to pressing the Close button in the
title bar of the active window or selecting the appropriate menu entry from
the Visualization menu.
A graphics window can be activated by calling dev_set_window or by
pressing the Activate button in the tool bar of the selected
graphics window.
Attention🔗
This operator only works for single floating graphics windows, i.e., graphics windows that are neither docked nor tabbed.
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.
Example🔗
(HDevelop)
* close all windows
for i := 1 to 10 by 1
dev_close_window ()
endfor
read_image (For5, 'for5')
get_image_size (For5, Width, Height)
dev_open_window (0, 0, Width, Height, 'black', WindowHandle)
dev_display (For5)
Result🔗
dev_close_window returns always 2 (H_MSG_TRUE).
Combinations with other operators🔗
Combinations
Possible predecessors
dev_set_window, dev_open_window
Possible successors
dev_open_window, dev_get_window
See also
Module🔗
Foundation