send_mouse_up_eventT_send_mouse_up_eventSendMouseUpEventSendMouseUpEvent (Operator)

Name

send_mouse_up_eventT_send_mouse_up_eventSendMouseUpEventSendMouseUpEvent — Send an event to a buffer window signaling a mouse up event.

Signature

send_mouse_up_event( : : WindowHandle, Row, Column, Button : Processed)

Description

send_mouse_up_eventsend_mouse_up_eventSendMouseUpEventSendMouseUpEventSendMouseUpEvent sends an event at the position (RowRowRowRowrow, ColumnColumnColumnColumncolumn) to the buffer window WindowHandleWindowHandleWindowHandleWindowHandlewindowHandle, signaling that the mouse button encoded by ButtonButtonButtonButtonbutton has been released. Please refer to get_mbuttonget_mbuttonGetMbuttonGetMbuttonGetMbutton to see how to encode ButtonButtonButtonButtonbutton.

The purpose of this operator is to release manipulated drawing objects in a buffer window. For example, a drawing object that has been moved by a (sequence of) send_mouse_down_eventsend_mouse_down_eventSendMouseDownEventSendMouseDownEventSendMouseDownEvent will be released. To simplify the interaction with the drawing object, the coordinates RowRowRowRowrow and ColumnColumnColumnColumncolumn are given in the image coordinate system. To convert window coordinates into image coordinates, the operator convert_coordinates_window_to_imageconvert_coordinates_window_to_imageConvertCoordinatesWindowToImageConvertCoordinatesWindowToImageConvertCoordinatesWindowToImage can be used.

If the event could be processed, send_mouse_up_eventsend_mouse_up_eventSendMouseUpEventSendMouseUpEventSendMouseUpEvent returns 'true'"true""true""true""true" in ProcessedProcessedProcessedProcessedprocessed. If no action for the event could be determined (e.g., because there is no drawing object below the mouse position), 'false'"false""false""false""false" is returned in ProcessedProcessedProcessedProcessedprocessed. In this case the caller may determine an action for the event.

The operators send_mouse_down_eventsend_mouse_down_eventSendMouseDownEventSendMouseDownEventSendMouseDownEvent, send_mouse_up_eventsend_mouse_up_eventSendMouseUpEventSendMouseUpEventSendMouseUpEvent, send_mouse_drag_eventsend_mouse_drag_eventSendMouseDragEventSendMouseDragEventSendMouseDragEvent and send_mouse_double_click_eventsend_mouse_double_click_eventSendMouseDoubleClickEventSendMouseDoubleClickEventSendMouseDoubleClickEvent are the only means to manipulate drawing objects in buffer windows.

Attention

send_mouse_up_eventsend_mouse_up_eventSendMouseUpEventSendMouseUpEventSendMouseUpEvent depends on the library libcanvas, which might not be available on embedded systems.

Execution Information

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Processed without parallelization.

Parameters

WindowHandleWindowHandleWindowHandleWindowHandlewindowHandle (input_control) window → (handle)

Window handle of the buffer window.

RowRowRowRowrow (input_control) point.y → (integer / real)

Row coordinate of the mouse cursor in the image coordinate system.

ColumnColumnColumnColumncolumn (input_control) point.x → (integer / real)

Column coordinate of the mouse cursor in the image coordinate system.

ButtonButtonButtonButtonbutton (input_control) integer → (integer)

Mouse button(s) pressed.

ProcessedProcessedProcessedProcessedprocessed (output_control) string → (string)

'true', if HALCON processed the event.

Result

send_mouse_up_eventsend_mouse_up_eventSendMouseUpEventSendMouseUpEventSendMouseUpEvent returns the value 2 (H_MSG_TRUE) if the window handle WindowHandleWindowHandleWindowHandleWindowHandlewindowHandle corresponds to a window of valid type, and the event is properly encoded. Otherwise, an exception is raised.

Possible Predecessors

open_windowopen_windowOpenWindowOpenWindowOpenWindow

Module

Foundation

Operators