DragKey

[property icon] DragKey

Returns the drag key and mouse button state

Runtime-only Integer property

Applies to: Button , CheckBox , Graph , Grid , KCMLEdit , List Box , Picture Button , Radio , Rich Edit , Tree

Introduced in KCML version 6.60

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DragKey

This property returns the state of the Shift and Control keys and the mouse buttons during a Drop() event.

The following table shows the values that may be returned. More than one value may be combined and a mouse button will always be set eg. a shift+left-drag would have _SHIFTSTATE_LBUTTON + _SHIFTSTATE_SHIFT.

Keys + Buttons Value
Shift key _SHIFTSTATE_SHIFT
Control key _SHIFTSTATE_CTRL
Left mouse button _SHIFTSTATE_LBUTTON
Middle mouse button _SHIFTSTATE_MBUTTON
Right mouse button _SHIFTSTATE_RBUTTON 
DEFEVENT Form1.TreeControl1.Drop()
        SELECT CASE ..DragKey
        CASE _SHIFTSTATE_LBUTTON
                REM  This is a simple drag
        CASE _SHIFTSTATE_LBUTTON + _SHIFTSTATE_SHIFT
                REM  This is a Shift drag
        CASE _SHIFTSTATE_LBUTTON + _SHIFTSTATE_CTRL
                REM  This is a Control drag
        CASE _SHIFTSTATE_LBUTTON + _SHIFTSTATE_SHIFT + _SHIFTSTATE_CTRL
                REM  This is a Shift+Control drag
        END SELECT
END EVENT

See also

Button methods, properties and events. CheckBox methods, properties and events. Graph methods, properties and events. Grid methods, properties and events. KCMLEdit methods, properties and events. List Box methods, properties and events. Picture Button methods, properties and events. Radio methods, properties and events. Rich Edit methods, properties and events. Tree methods, properties and events.