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dev_set_windowdev_set_windowdev_set_windowDevSetWindowDevSetWindow (Operator)

Name

dev_set_windowdev_set_windowdev_set_windowDevSetWindowDevSetWindow — Activate a graphics window.

Signature

Description

dev_set_windowdev_set_windowdev_set_windowDevSetWindowDevSetWindow activates the graphics window with the passed window handle. This is equivalent to pressing the Active button in the tool bar of the graphics window.

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

Example (HDevelop)

dev_open_window (1, 1, 200, 200, 'black', WindowID1)
dev_open_window (1, 220, 200, 200, 'black', WindowID2)
read_image(Image,'monkey')
dev_set_window(WindowID1)
dev_display(Image)
dev_set_window(WindowID2)
dev_display(Image)

Result

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

Possible Predecessors

dev_open_windowdev_open_windowdev_open_windowDevOpenWindowDevOpenWindow

Possible Successors

dev_displaydev_displaydev_displayDevDisplayDevDisplay

Module

Foundation