gpm unit

The GPM unit implements an interface to libgpm, the console program for mouse handling. This unit was created by Peter Vreman, and is only available on Linux.

When this unit is used, your program is linked to the C libraries, so you must take care of the C library version. Also, it will only work with version 1.17 or higher of the libgpm library.

Classes and records

Tgpm_connect	record	GPM server connection information.
Tgpm_event	record	GPM event record.
Tgpm_roi	record	Record used to define regions of interest.

Procedures and functions

Gpm_AnyDouble	function	Check whether event has double click event.
Gpm_AnySingle	function	Check whether event has a single click event.
Gpm_AnyTriple	function	Check whether event has a triple click event.
gpm_close	function	Close connection to GPM server.
gpm_fitvalues	function	Change coordinates to fit physical screen.
gpm_fitvaluesM	function	Change coordinates to fit margin.
gpm_getevent	function	Get event from event queue.
gpm_getsnapshot	function	Return servers' current image of mouse state.
gpm_lowerroi	function	Lower a region of interest in the stack.
gpm_open	function	Open connection to GPM server.
gpm_poproi	function	Pop region of interest from the stack.
gpm_pushroi	function	Push region of interest on the stack.
gpm_raiseroi	function	Raise region of interest in the stack.
gpm_repeat	function	Check for presence of mouse event.
Gpm_StrictDouble	function	Check whether event contains only a double-click event.
Gpm_StrictSingle	function	Check whether event contains only a single-click event.
Gpm_StrictTriple	function	Check whether event contains only a triple-click event.

Types

Pgpm_connect	type	Pointer to record.
Pgpm_event	type	Pointer to record.
Pgpm_roi	type	Pointer to record.
Pgpmconnect	type	Pointer to record.
Pgpmevent	type	Pointer to record.
Pgpmroi	type	Pointer to record.
Tgpmconnect	type	Alias for record.
TGpmEtype	type	Type for event type.
Tgpmevent	type	Alias for record.
TGpmHandler	procedure type	Mouse event handler callback.
TGpmMargin	type	Type to hold area margin.
Tgpmroi	type	Alias for Record.

Constants

_PATH_DEV	constant	Location of /dev directory.
_PATH_VARRUN	constant	Location of run PID files directory.
GPM_B_LEFT	constant	Left mouse button identifier.
GPM_B_MIDDLE	constant	Middle mouse button identifier.
GPM_B_RIGHT	constant	Right mouse button identifier.
GPM_BOT	constant	Bottom of area.
GPM_DOUBLE	constant	Mouse double click event.
GPM_DOWN	constant	Mouse button down event.
GPM_DRAG	constant	Mouse drag event.
GPM_ENTER	constant	Enter area event.
GPM_HARD	constant	?
GPM_LEAVE	constant	Leave area event.
GPM_LFT	constant	Left side of area.
GPM_MAGIC	constant	Constant identifying GPM in .
GPM_MFLAG	constant	Motion flag.
GPM_MOVE	constant	Mouse move event.
GPM_NODE_CTL	constant	Control socket.
GPM_NODE_DEV	constant	Device socket filename.
GPM_NODE_DIR	constant	Where to write socket.
GPM_NODE_DIR_MODE	constant	Mode of socket.
GPM_NODE_FIFO	constant	FIFO name.
GPM_NODE_PID	constant	Name of PID file.
GPM_RGT	constant	Right side of area.
GPM_SINGLE	constant	Mouse single click event.
GPM_TOP	constant	Top of area.
GPM_TRIPLE	constant	Mouse triple click event.
GPM_UP	constant	Mouse button up event.

Variables

gpm_current_roi	variable	Internal gpm library variable. Do not use.
gpm_handler	variable	Internal gpm library variable. Do not use.
gpm_roi	variable	Internal gpm library variable. Do not use.
gpm_roi_data	variable	Internal gpm library variable. Do not use.
gpm_roi_handler	variable	Internal gpm library variable. Do not use.

Uses

• baseUnix