dragLeave | |
Type | message |
Dictionary | LCS |
Library | LiveCode Script |
Syntax |
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Associations | card, field, button, graphic, scrollbar, player, image |
Summary | Sent when the mouse pointer moves out of an object during a drag and drop. |
Introduced | 2.0 |
OS | mac, windows, linux |
Platforms | desktop, server |
Example |
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Related | Glossary: object, handler, control, mouse pointer, message, drag and drop Message: dragEnter |
Description | Handle the dragLeave message to update a control when the mouse pointer moves outside it during drag and drop. The dragLeave message is sent only when a drag and drop operation is in progress. If two controls overlap, a dragLeave message is sent whenever the mouse pointer crosses outside a visible portion of a control. The control on the bottom receives a dragLeave message only when the mouse pointer leaves part of the control that can be seen. A control that is completely hidden by another control on top of it will never receive a dragLeave message. You can use the dragEnter and dragLeave messages to display a visual cue that shows which control will receive the drop if the user releases the mouse button. For example, the following handlers turn the border of a "droppable" object green while the mouse is over it:
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Tags | ui |