Open a window to inspect a control variable.

dev_inspect_ctrl opens a dialog to check the contents of a control variable. This dialog has a scrolled list with all the values of the variable. In the case of an frame grabber handle a specific dialog is opened which displays the most important frame grabber parameters and can be used to switch the frame grabber only interactively. The contents of the dilaog will be updated whenever the value(s) of variable changes. The update mode can influenced by the operator dev_update_var. The dialog can be closed by pressing the Close-button or by calling dev_close_inspect_ctrl.

This operator is not supported for exported C++ code.

read_image (Image, 'fabrik')
regiongrowing (Image, Regions, 3, 3, 6, 100)
area_center (Regions, Area, Row, Column)
dev_inspect_ctrl (Area)

dev_inspect_ctrl always returns 2 (H_MSG_TRUE)

dev_inspect_ctrl is local and processed completely exclusively without parallelization.

dev_update_var

Basic operators