Shift 是一个集合变量. type TShiftState = set of (ssShift, ssAlt, ssCtrl, ssLeft, ssRight, ssMiddle, ssDouble); 也就是说TShiftstate类型有ssShift, ssAlt, ssCtrl, ssLeft(鼠标左键), ssRight(鼠标右键), ssMiddle(鼠标中键), ssDouble (鼠标双击) Value Meaning ssShift The Shift key is held
Shift 是一个集合变量. type TShiftState = set of (ssShift, ssAlt, ssCtrl, ssLeft, ssRight, ssMiddle, ssDouble); 也就是说TShiftstate类型有ssShift, ssAlt, ssCtrl, ssLeft(鼠标左键), ssRight(鼠标右键), ssMiddle(鼠标中键), ssDouble (鼠标双击) Value Meaning ssShift The Shif