TShiftState indicates the state of the Alt, Ctrl, and Shift keys and the mouse buttons.
TShiftState = set of (ssShift, ssAlt, ssCtrl, ssLeft, ssRight, ssMiddle, ssDouble);
(ssShift, ssAlt, ssCtrl, ssLeft, ssRight, ssMiddle, ssDouble) TShiftState;The TShiftState type is used by key-event and mouse-event handlers to determine the state of the Alt, Ctrl, and Shift keys and the state of the mouse buttons when the event occurs. It is a set of flags that indicate the following:
|
Value |
Meaning |
|
ssShift |
The Shift key is held down. |
|
ssAlt |
The Alt key is held down. |
|
ssCtrl |
The Ctrl key is held down. |
|
ssLeft |
The left mouse button is held down. |
|
ssRight |
The right mouse button is held down. |
|
ssMiddle |
The middle mouse button is held down. |
|
ssDouble |
The mouse was double-clicked. |
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