IlvCursor Class Reference

Cursor class. More...

#include <ilviews/base/resource.h>

Inheritance diagram for IlvCursor:

Public Member Functions
	IlvCursor (IlvDisplay *display, IlvPos hotX, IlvPos hotY, const char *name, IlvBitmap *image, IlvBitmap *mask)
	Constructor. More...
IlBoolean	isBad () const
	Checks the validity of that IlvCursor. More...
Public Member Functions inherited from IlvResource
IlvDisplay *	getDisplay () const
	Gets the IlvDisplay instance. More...
const char *	getName () const
	Gets the resource name. More...
void	lock ()
	Locks the resource. More...
virtual void	setName (const char *name)
	Sets the name of the resource. More...
virtual void	unLock ()
	Unlocks the resource. More...

Friends
class	IlvDisplay

Detailed Description

Cursor class.

Library: xviews or winviews or mviews (mutually exclusive)

A Rogue Wave Views cursor is an icon appearing on the screen and following mouse movement.

- Cursor resources -

The IlvDisplay::getCursor member function returns a previously-defined cursor. The IlvDisplay::defaultCursor member function returns a predefined cursor.

You can access predefined cursors by their name. Once a new IlvCursor has a name, it can be identified by the display.

- Predefined cursors and their names -

See also

IlvAbstractView::getCursor, IlvAbstractView::setCursor, IlvDisplay::getCursor.

Constructor & Destructor Documentation

IlvCursor::IlvCursor	(	IlvDisplay *	display,
		IlvPos	hotX,
		IlvPos	hotY,
		const char *	name,
		IlvBitmap *	image,
		IlvBitmap *	mask
	)

Constructor.

Initializes a new IlvCursor with a given shape. The shape of the cursor is defined by two bitmaps that must be monochrome, and have the same size: the image bitmap, that defines the shape of the new cursor, and mask that indicates, by setting a pixel to 0, that the image should be transparent at this point, or opaque if the mask pixel is set to 1.

Parameters

display	The display for which this cursor was created.
hotX	The x coordinate, relative to the upper-left corner of this cursor, that indicates the real location of the pointing device (the hot spot).
hotY	The x coordinate, relative to the upper-left corner of this cursor, that indicates the real location of the pointing device (the hot spot).
name	The name of this cursor. This string is used by IlvDisplay::getCursor to find this cursor. This string is copied.
image	The image bitmap that defines this cursor.
mask	The mask bitmap that defines this cursor.

See also

IlvDisplay::getCursor.

Member Function Documentation

IlBoolean IlvCursor::isBad

(

)

const

Checks the validity of that IlvCursor.

This method should be called before any other, right after the cursor was created, to make sure it is valid.

Returns

IlFalse if the cursor is valid, and IlTrue if it is not (usually because the parameters provided to the constructor were not valid). In the latter case, simply delete this IlvCursor without using it any further.