dmxinput.h File Reference

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Data Structures
struct	_DMXInputInfo
Defines
#define	DMX_MAX_SIGIO_FDS   4
Typedefs
typedef _DMXLocalInputInfo *	DMXLocalInputInfoPtr
Enumerations
enum	DMXUpdateType {   DMX_UPDATE_REALIZE, DMX_UPDATE_UNREALIZE, DMX_UPDATE_RESTACK, DMX_UPDATE_COPY,   DMX_UPDATE_RESIZE, DMX_UPDATE_REPARENT }
enum	dmxSigioState { DMX_NOSIGIO = 0, DMX_USESIGIO, DMX_ACTIVESIGIO }
Functions
void	dmxInputInit (DMXInputInfo *dmxInput)
void	dmxInputReInit (DMXInputInfo *dmxInput)
void	dmxInputLateReInit (DMXInputInfo *dmxInput)
void	dmxInputFree (DMXInputInfo *dmxInput)
void	dmxInputLogDevices (void)
void	dmxUpdateWindowInfo (DMXUpdateType type, WindowPtr pWindow)
void	dmxeqEnqueue (xEvent *e)
void	dmxeqSwitchScreen (ScreenPtr pScreen, Bool fromDIX)
void	dmxGetGlobalPosition (int *x, int *y)
Variables
int	dmxNumInputs
DMXInputInfo *	dmxInputs

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Detailed Description

This file provides access to:

• global variables available to all hw/dmx routines, and
• enumerations and typedefs needed by input routines in hw/dmx (and hw/dmx/input).

The goal is that no files in hw/dmx should include header files from hw/dmx/input -- the interface defined here should be the only interface exported to the hw/dmx layer.

See also:

input/dmxinputinit.c.

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Define Documentation

#define DMX_MAX_SIGIO_FDS   4

Maximum number of file descriptors for SIGIO handling

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Typedef Documentation

typedef struct _DMXLocalInputInfo* DMXLocalInputInfoPtr

An opaque structure that is only exposed in the dmx/input layer.

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Enumeration Type Documentation

enum dmxSigioState

State of the SIGIO engine Enumeration values: DMX_NOSIGIO  Device does not use SIGIO at all. DMX_USESIGIO  Device can use SIGIO, but is not (e.g., because the VT is switch away). DMX_ACTIVESIGIO  Device is currently using SIGIO.

enum DMXUpdateType

Reason why window layout was updated. Enumeration values: DMX_UPDATE_REALIZE  Window realized DMX_UPDATE_UNREALIZE  Window unrealized DMX_UPDATE_RESTACK  Stacking order changed DMX_UPDATE_COPY  Window copied DMX_UPDATE_RESIZE  Window resized DMX_UPDATE_REPARENT  Window reparented

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Function Documentation

void dmxeqEnqueue (  xEvent *  e  )

This function adds an event to the end of the queue. If the event is an XInput event, then the next event (the valuator event) is also stored in the queue. If the new event has a time before the time of the last event currently on the queue, then the time is updated for the new event. Must be reentrant with ProcessInputEvents. Assumption: dmxeqEnqueue will never be interrupted. If this is called from both signal handlers and regular code, make sure the signal is suspended when called from regular code.

void dmxeqSwitchScreen (  ScreenPtr  pScreen, Bool  fromDIX )

Make pScreen the new screen for enqueueing events. If fromDIX is TRUE, also make pScreen the new screen for dequeuing events.

void dmxGetGlobalPosition (  int *  x, int *  y )

Return DMX's notion of the pointer position in the global coordinate space.

void dmxInputFree (  DMXInputInfo *  dmxInput  )

Free all of the memory associated with dmxInput

void dmxInputInit (  DMXInputInfo *  dmxInput  )

Initialize all of the devices described in dmxInput.

void dmxInputLateReInit (  DMXInputInfo *  dmxInput  )

Re-initialize all the devices described in dmxInput. Called from #dmxReconfig after the cursor is redisplayed.

void dmxInputLogDevices (  void   )

Log information about all of the known devices using dmxLog().

void dmxInputReInit (  DMXInputInfo *  dmxInput  )

Re-initialize all the devices described in dmxInput. Called from #dmxReconfig before the cursor is redisplayed.

void dmxUpdateWindowInfo (  DMXUpdateType  type, WindowPtr  pWindow )

This routine is called from #dmxwindow.c whenever the layout of windows on the display might have changed. This information is used by input drivers (currently only the console driver) that provide information about window layout to the user.

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Variable Documentation

DMXInputInfo* dmxInputs

List of inputs

int dmxNumInputs

Number of dmxInputs

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