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State changes while dragging - when mouse enters, leaves or moves over a control.
Source position: controls.pp line 390
type TDragState = ( |
||
dsDragEnter, |
|
Mouse has just entered the control. |
dsDragLeave, |
|
Mouse has just left the control. |
dsDragMove |
|
Mouse is moving over the control. |
); |
These values are sent with drag messages, allowing the control to perform special actions while the mouse moves over it.
lazarus-ccr.sourceforge.net |