QCursor Class

Detailed Description

This class is mainly used to create mouse cursors that are associated with particular widgets and to get and set the position of the mouse cursor.

Qt has a number of standard cursor shapes, but you can also make custom cursor shapes based on a QBitmap, a mask and a hotspot.

To associate a cursor with a widget, use QWidget::setCursor(). To associate a cursor with all widgets (normally for a short period of time), use QGuiApplication::setOverrideCursor().

To set a cursor shape use QCursor::setShape() or use the QCursor constructor which takes the shape as argument, or you can use one of the predefined cursors defined in the Qt::CursorShape enum.

If you want to create a cursor with your own bitmap, either use the QCursor constructor which takes a bitmap and a mask or the constructor which takes a pixmap as arguments.

To set or get the position of the mouse cursor use the static methods QCursor::pos() and QCursor::setPos().

Note: It is possible to create a QCursor before QGuiApplication, but it is not useful except as a place-holder for a real QCursor created after QGuiApplication. Attempting to use a QCursor that was created before QGuiApplication will result in a crash.

A Note for X11 Users

On X11, Qt supports the Xcursor library, which allows for full color icon themes. The table below shows the cursor name used for each Qt::CursorShape value. If a cursor cannot be found using the name shown below, a standard X11 cursor will be used instead. Note: X11 does not provide appropriate cursors for all possible Qt::CursorShape values. It is possible that some cursors will be taken from the Xcursor theme, while others will use an internal bitmap cursor.

Shape	Qt::CursorShape Value	Cursor Name	Shape	Qt::CursorShape Value	Cursor Name
	Qt::ArrowCursor	left_ptr		Qt::SizeVerCursor	size_ver
	Qt::UpArrowCursor	up_arrow		Qt::SizeHorCursor	size_hor
	Qt::CrossCursor	cross		Qt::SizeBDiagCursor	size_bdiag
	Qt::IBeamCursor	ibeam		Qt::SizeFDiagCursor	size_fdiag
	Qt::WaitCursor	wait		Qt::SizeAllCursor	size_all
	Qt::BusyCursor	left_ptr_watch		Qt::SplitVCursor	split_v
	Qt::ForbiddenCursor	forbidden		Qt::SplitHCursor	split_h
	Qt::PointingHandCursor	pointing_hand		Qt::OpenHandCursor	openhand
	Qt::WhatsThisCursor	whats_this		Qt::ClosedHandCursor	closedhand
	Qt::DragMoveCursor	dnd-move or move		Qt::DragCopyCursor	dnd-copy or copy
	Qt::DragLinkCursor	dnd-link or link