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lib/mayasdk6/include/maya/MEvent.h

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+
+#ifndef _MEvent
+#define _MEvent
+//
+//-
+// ==========================================================================
+// Copyright (C) 1995 - 2005 Alias Systems Corp. and/or its licensors.  All 
+// rights reserved.
+// 
+// The coded instructions, statements, computer programs, and/or related 
+// material (collectively the "Data") in these files contain unpublished 
+// information proprietary to Alias Systems Corp. ("Alias") and/or its 
+// licensors, which is protected by Canadian and US federal copyright law and 
+// by international treaties.
+// 
+// The Data may not be disclosed or distributed to third parties or be copied 
+// or duplicated, in whole or in part, without the prior written consent of 
+// Alias.
+// 
+// THE DATA IS PROVIDED "AS IS". ALIAS HEREBY DISCLAIMS ALL WARRANTIES RELATING 
+// TO THE DATA, INCLUDING, WITHOUT LIMITATION, ANY AND ALL EXPRESS OR IMPLIED 
+// WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND/OR FITNESS FOR A 
+// PARTICULAR PURPOSE. IN NO EVENT SHALL ALIAS BE LIABLE FOR ANY DAMAGES 
+// WHATSOEVER, WHETHER DIRECT, INDIRECT, SPECIAL, OR PUNITIVE, WHETHER IN AN 
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, OR IN EQUITY, 
+// ARISING OUT OF ACCESS TO, USE OF, OR RELIANCE UPON THE DATA.
+// ==========================================================================
+//+
+//
+// CLASS:    MEvent
+//
+// *****************************************************************************
+//
+// CLASS DESCRIPTION (MEvent)
+//
+// The MEvent class is used for querying system events such as mouse presses.
+//
+// Events are handled by an MPxContext derived class in which MEvents are passed
+// and can be accessed.
+// 
+// Since Maya has default actions for several events, only a subset are
+// available through the API.
+// The events that can be accessed are:
+//    buttonPress       - mouse button press event (left & middle only)
+//    buttonRelease     - mouse buttons release event (left & middle only)
+//    mouseDrag         - mouse button drag event (left & middle only)
+//    hold              - mouse button hold event (left & middle only)
+//    deleteEvent       - delete/backspace key event
+//    commandCompletion - complete key event
+// 
+// Several modifiers for events are also accessible through the API.  Modifiers
+// are actions that occur during an event.  For example, holding down the shift
+// key while pressing a mouse button causes a button press event to occur with
+// a shift modifier.
+// 
+// A modifier can be used to determine if two mouse events occur simulaneously.
+// The second mouse event is registered as a modifier in the hold event of the 
+// first mouse button.  So if you wanted to determine if both the left and
+// middle buttons are pressed then you would query the modifier in the hold
+// event of the first mouse button using the isModifierMiddleMouseButton() and
+// isModifierLeftMouseButton() methods.
+//
+// *****************************************************************************
+
+#if defined __cplusplus
+
+// *****************************************************************************
+
+// INCLUDED HEADER FILES
+
+
+#include <maya/MStatus.h>
+
+// *****************************************************************************
+
+// DECLARATIONS
+
+class MDeviceState;
+
+// *****************************************************************************
+
+// CLASS DECLARATION (MEvent)
+
+/// System event information (OpenMayaUI)
+/**
+
+System event information class.
+
+*/
+#ifdef _WIN32
+#pragma warning(disable: 4522)
+#endif // _WIN32
+
+class OPENMAYAUI_EXPORT MEvent  
+{
+public:
+
+	///
+    enum ModifierType {
+		///
+        shiftKey    = 1<<0,
+		///
+        controlKey  = 1<<2
+    };
+
+	///
+	enum MouseButtonType {
+		///
+		kLeftMouse		= 1<<6,
+		///
+		kMiddleMouse	= kLeftMouse<<1
+	};
+
+public:
+	///
+    MEvent();
+	///
+    virtual ~MEvent();
+
+	///
+    MStatus         getPosition( short& x_pos, short& y_pos ) const;
+	///
+    MStatus         setPosition( short& x_pos, short& y_pos );
+	///
+    MStatus         getWindowPosition( short& x_pos, short& y_pos ) const;
+	///
+    MouseButtonType mouseButton( MStatus * ReturnStatus = NULL ) const;
+	///
+    bool            isModifierKeyRelease( MStatus * ReturnStatus = NULL ) const;
+	///
+    ModifierType    modifiers( MStatus * ReturnStatus = NULL ) const;
+	///
+    MStatus         setModifiers( ModifierType& modType );
+	///
+    bool            isModifierNone( MStatus * ReturnStatus = NULL ) const;
+	///
+    bool            isModifierShift( MStatus * ReturnStatus = NULL ) const;
+	///
+    bool            isModifierControl( MStatus * ReturnStatus = NULL ) const;
+	///
+    bool            isModifierLeftMouseButton( MStatus * ReturnStatus = NULL )
+					const;
+	///
+    bool            isModifierMiddleMouseButton( MStatus * ReturnStatus = NULL )
+					const;
+
+protected:
+// No protected members
+
+private:
+    static const char* className();
+
+
+    MEvent( const void * );
+    const void * fEventPtr;
+    void * fModifier;
+};
+
+#ifdef _WIN32
+#pragma warning(default: 4522)
+#endif // _WIN32
+
+// *****************************************************************************
+#endif /* __cplusplus */
+#endif /* _MEvent */