tkint.h

linux系统下的音频通信

/*
 * tkInt.h --
 *
 *	Declarations for things used internally by the Tk
 *	procedures but not exported outside the module.
 *
 * Copyright (c) 1990-1994 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 * Copyright (c) 1998 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * SCCS: @(#) tkInt.h 1.6 98/08/04 12:19:22
 */

#ifndef _TKINT
#define _TKINT

#ifndef _TK
#include "tk.h"
#endif
#ifndef _TCL
#include "tcl.h"
#endif
#ifndef _TKPORT
#include <tkPort.h>
#endif

#ifdef BUILD_tk
# undef TCL_STORAGE_CLASS
# define TCL_STORAGE_CLASS DLLEXPORT
#endif

/*
 * Opaque type declarations:
 */

typedef struct TkColormap TkColormap;
typedef struct TkGrabEvent TkGrabEvent;
typedef struct Tk_PostscriptInfo Tk_PostscriptInfo;
typedef struct TkpCursor_ *TkpCursor;
typedef struct TkRegion_ *TkRegion;
typedef struct TkStressedCmap TkStressedCmap;
typedef struct TkBindInfo_ *TkBindInfo;

/*
 * Procedure types.
 */

typedef int (TkBindEvalProc) _ANSI_ARGS_((ClientData clientData,
	Tcl_Interp *interp, XEvent *eventPtr, Tk_Window tkwin,
	KeySym keySym));
typedef void (TkBindFreeProc) _ANSI_ARGS_((ClientData clientData));
typedef Window (TkClassCreateProc) _ANSI_ARGS_((Tk_Window tkwin,
	Window parent, ClientData instanceData));
typedef void (TkClassGeometryProc) _ANSI_ARGS_((ClientData instanceData));
typedef void (TkClassModalProc) _ANSI_ARGS_((Tk_Window tkwin,
	XEvent *eventPtr));


/*
 * Widget class procedures used to implement platform specific widget
 * behavior.
 */

typedef struct TkClassProcs {
    TkClassCreateProc *createProc;
				/* Procedure to invoke when the
                                   platform-dependent window needs to be
                                   created. */
    TkClassGeometryProc *geometryProc;
				/* Procedure to invoke when the geometry of a
				   window needs to be recalculated as a result
				   of some change in the system. */
    TkClassModalProc *modalProc;
				/* Procedure to invoke after all bindings on a
				   widget have been triggered in order to
				   handle a modal loop. */
} TkClassProcs;

/*
 * One of the following structures is maintained for each cursor in
 * use in the system.  This structure is used by tkCursor.c and the
 * various system specific cursor files.
 */

typedef struct TkCursor {
    Tk_Cursor cursor;		/* System specific identifier for cursor. */
    int refCount;		/* Number of active uses of cursor. */
    Tcl_HashTable *otherTable;	/* Second table (other than idTable) used
				 * to index this entry. */
    Tcl_HashEntry *hashPtr;	/* Entry in otherTable for this structure
				 * (needed when deleting). */
} TkCursor;

/*
 * One of the following structures is maintained for each display
 * containing a window managed by Tk:
 */

typedef struct TkDisplay {
    Display *display;		/* Xlib's info about display. */
    struct TkDisplay *nextPtr;	/* Next in list of all displays. */
    char *name;			/* Name of display (with any screen
				 * identifier removed).  Malloc-ed. */
    Time lastEventTime;		/* Time of last event received for this
				 * display. */

    /*
     * Information used primarily by tkBind.c:
     */

    int bindInfoStale;		/* Non-zero means the variables in this
				 * part of the structure are potentially
				 * incorrect and should be recomputed. */
    unsigned int modeModMask;	/* Has one bit set to indicate the modifier
				 * corresponding to "mode shift".  If no
				 * such modifier, than this is zero. */
    unsigned int metaModMask;	/* Has one bit set to indicate the modifier
				 * corresponding to the "Meta" key.  If no
				 * such modifier, then this is zero. */
    unsigned int altModMask;	/* Has one bit set to indicate the modifier
				 * corresponding to the "Meta" key.  If no
				 * such modifier, then this is zero. */
    enum {LU_IGNORE, LU_CAPS, LU_SHIFT} lockUsage;
				/* Indicates how to interpret lock modifier. */
    int numModKeyCodes;		/* Number of entries in modKeyCodes array
				 * below. */
    KeyCode *modKeyCodes;	/* Pointer to an array giving keycodes for
				 * all of the keys that have modifiers
				 * associated with them.  Malloc'ed, but
				 * may be NULL. */

    /*
     * Information used by tkError.c only:
     */

    struct TkErrorHandler *errorPtr;
				/* First in list of error handlers
				 * for this display.  NULL means
				 * no handlers exist at present. */
    int deleteCount;		/* Counts # of handlers deleted since
				 * last time inactive handlers were
				 * garbage-collected.  When this number
				 * gets big, handlers get cleaned up. */

    /*
     * Information used by tkSend.c only:
     */

    Tk_Window commTkwin;	/* Window used for communication
				 * between interpreters during "send"
				 * commands.  NULL means send info hasn't
				 * been initialized yet. */
    Atom commProperty;		/* X's name for comm property. */
    Atom registryProperty;	/* X's name for property containing
				 * registry of interpreter names. */
    Atom appNameProperty;	/* X's name for property used to hold the
				 * application name on each comm window. */

    /*
     * Information used by tkSelect.c and tkClipboard.c only:
     */

    struct TkSelectionInfo *selectionInfoPtr;
				/* First in list of selection information
				 * records.  Each entry contains information
				 * about the current owner of a particular
				 * selection on this display. */
    Atom multipleAtom;		/* Atom for MULTIPLE.  None means
				 * selection stuff isn't initialized. */
    Atom incrAtom;		/* Atom for INCR. */
    Atom targetsAtom;		/* Atom for TARGETS. */
    Atom timestampAtom;		/* Atom for TIMESTAMP. */
    Atom textAtom;		/* Atom for TEXT. */
    Atom compoundTextAtom;	/* Atom for COMPOUND_TEXT. */
    Atom applicationAtom;	/* Atom for TK_APPLICATION. */
    Atom windowAtom;		/* Atom for TK_WINDOW. */
    Atom clipboardAtom;		/* Atom for CLIPBOARD. */

    Tk_Window clipWindow;	/* Window used for clipboard ownership and to
				 * retrieve selections between processes. NULL
				 * means clipboard info hasn't been
				 * initialized. */
    int clipboardActive;	/* 1 means we currently own the clipboard
				 * selection, 0 means we don't. */
    struct TkMainInfo *clipboardAppPtr;
				/* Last application that owned clipboard. */
    struct TkClipboardTarget *clipTargetPtr;
				/* First in list of clipboard type information
				 * records.  Each entry contains information
				 * about the buffers for a given selection
				 * target. */

    /*
     * Information used by tkAtom.c only:
     */

    int atomInit;		/* 0 means stuff below hasn't been
				 * initialized yet. */
    Tcl_HashTable nameTable;	/* Maps from names to Atom's. */
    Tcl_HashTable atomTable;	/* Maps from Atom's back to names. */

    /*
     * Information used by tkCursor.c only:
     */

    Font cursorFont;		/* Font to use for standard cursors.
				 * None means font not loaded yet. */

    /*
     * Information used by tkGrab.c only:
     */

    struct TkWindow *grabWinPtr;
				/* Window in which the pointer is currently
				 * grabbed, or NULL if none. */
    struct TkWindow *eventualGrabWinPtr;
				/* Value that grabWinPtr will have once the
				 * grab event queue (below) has been
				 * completely emptied. */
    struct TkWindow *buttonWinPtr;
				/* Window in which first mouse button was
				 * pressed while grab was in effect, or NULL
				 * if no such press in effect. */
    struct TkWindow *serverWinPtr;
				/* If no application contains the pointer then
				 * this is NULL.  Otherwise it contains the
				 * last window for which we've gotten an
				 * Enter or Leave event from the server (i.e.
				 * the last window known to have contained
				 * the pointer).  Doesn't reflect events
				 * that were synthesized in tkGrab.c. */
    TkGrabEvent *firstGrabEventPtr;
				/* First in list of enter/leave events
				 * synthesized by grab code.  These events
				 * must be processed in order before any other
				 * events are processed.  NULL means no such
				 * events. */
    TkGrabEvent *lastGrabEventPtr;
				/* Last in list of synthesized events, or NULL
				 * if list is empty. */
    int grabFlags;		/* Miscellaneous flag values.  See definitions
				 * in tkGrab.c. */

    /*
     * Information used by tkXId.c only:
     */

    struct TkIdStack *idStackPtr;
				/* First in list of chunks of free resource
				 * identifiers, or NULL if there are no free
				 * resources. */
    XID (*defaultAllocProc) _ANSI_ARGS_((Display *display));
				/* Default resource allocator for display. */
    struct TkIdStack *windowStackPtr;
				/* First in list of chunks of window
				 * identifers that can't be reused right
				 * now. */
    int idCleanupScheduled;	/* 1 means a call to WindowIdCleanup has
				 * already been scheduled, 0 means it
				 * hasn't. */

    /*
     * Information maintained by tkWindow.c for use later on by tkXId.c:
     */


    int destroyCount;		/* Number of Tk_DestroyWindow operations
				 * in progress. */
    unsigned long lastDestroyRequest;
				/* Id of most recent XDestroyWindow request;
				 * can re-use ids in windowStackPtr when
				 * server has seen this request and event
				 * queue is empty. */

    /*
     * Information used by tkVisual.c only:
     */

    TkColormap *cmapPtr;	/* First in list of all non-default colormaps
				 * allocated for this display. */

    /*
     * Information used by tkFocus.c only:
     */

    struct TkWindow *implicitWinPtr;
				/* If the focus arrived at a toplevel window
				 * implicitly via an Enter event (rather
				 * than via a FocusIn event), this points
				 * to the toplevel window.  Otherwise it is
				 * NULL. */
    struct TkWindow *focusPtr;	/* Points to the window on this display that
				 * should be receiving keyboard events.  When
				 * multiple applications on the display have
				 * the focus, this will refer to the
				 * innermost window in the innermost
				 * application.  This information isn't used
				 * under Unix or Windows, but it's needed on
				 * the Macintosh. */

    /*
     * Used by tkColor.c only:
     */

    TkStressedCmap *stressPtr;	/* First in list of colormaps that have
				 * filled up, so we have to pick an
				 * approximate color. */

    /*
     * Used by tkEvent.c only:
     */

    struct TkWindowEvent *delayedMotionPtr;
				/* Points to a malloc-ed motion event
				 * whose processing has been delayed in
				 * the hopes that another motion event
				 * will come along right away and we can
				 * merge the two of them together.  NULL
				 * means that there is no delayed motion
				 * event. */

    /*
     * Miscellaneous information:
     */

#ifdef TK_USE_INPUT_METHODS
    XIM inputMethod;		/* Input method for this display */
#endif /* TK_USE_INPUT_METHODS */
    Tcl_HashTable winTable;	/* Maps from X window ids to TkWindow ptrs. */

    int refCount;		/* Reference count of how many Tk applications
                                 * are using this display. Used to clean up
                                 * the display when we no longer have any
                                 * Tk applications using it.