include/wx/utils.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        utils.h
   3 // Purpose:     Miscellaneous utilities
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_UTILSH__
  13 #define _WX_UTILSH__
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/object.h"
  20 #include "wx/list.h"
  21 #include "wx/filefn.h"
  22
  23 class WXDLLIMPEXP_BASE wxArrayString;
  24
  25 // need this for wxGetDiskSpace() as we can't, unfortunately, forward declare
  26 // wxLongLong
  27 #include "wx/longlong.h"
  28
  29 #ifdef __X__
  30     #include <dirent.h>
  31     #include <unistd.h>
  32 #endif
  33
  34 #include <stdio.h>
  35
  36 // ----------------------------------------------------------------------------
  37 // Forward declaration
  38 // ----------------------------------------------------------------------------
  39
  40 class WXDLLIMPEXP_CORE wxProcess;
  41 class WXDLLIMPEXP_CORE wxFrame;
  42 class WXDLLIMPEXP_CORE wxWindow;
  43 class WXDLLIMPEXP_CORE wxWindowList;
  44 class WXDLLIMPEXP_CORE wxPoint;
  45
  46 // ----------------------------------------------------------------------------
  47 // Macros
  48 // ----------------------------------------------------------------------------
  49
  50 #define wxMax(a,b)            (((a) > (b)) ? (a) : (b))
  51 #define wxMin(a,b)            (((a) < (b)) ? (a) : (b))
  52
  53 // wxGetFreeMemory can return huge amount of memory on 64-bit platforms
  54 // define wxMemorySize according to the type which best fits your platform
  55 #if wxUSE_LONGLONG && defined(__WIN64__)
  56     // 64 bit Windowses have sizeof(long) only 32 bit long
  57     // we need to use wxLongLong to express memory sizes
  58     #define wxMemorySize wxLongLong
  59 #else
  60     // 64 bit UNIX has sizeof(long) = 64
  61     // assume 32 bit platforms cannnot return more than 32bits of
  62     #define wxMemorySize long
  63 #endif
  64
  65 // ----------------------------------------------------------------------------
  66 // String functions (deprecated, use wxString)
  67 // ----------------------------------------------------------------------------
  68
  69 // Make a copy of this string using 'new'
  70 #if WXWIN_COMPATIBILITY_2_4
  71 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* copystring(const wxChar *s) );
  72 #endif
  73
  74 // A shorter way of using strcmp
  75 #define wxStringEq(s1, s2) (s1 && s2 && (wxStrcmp(s1, s2) == 0))
  76
  77 // ----------------------------------------------------------------------------
  78 // Miscellaneous functions
  79 // ----------------------------------------------------------------------------
  80
  81 // Sound the bell
  82 #if !defined __EMX__ && \
  83     (defined __WXMOTIF__ || defined __WXGTK__ || defined __WXX11__)
  84 WXDLLIMPEXP_CORE void wxBell();
  85 #else
  86 WXDLLIMPEXP_BASE void wxBell();
  87 #endif
  88
  89 // Get OS description as a user-readable string
  90 WXDLLIMPEXP_BASE wxString wxGetOsDescription();
  91
  92 // Get OS version
  93 WXDLLIMPEXP_BASE int wxGetOsVersion(int *majorVsn = (int *) NULL,
  94                                int *minorVsn = (int *) NULL);
  95
  96 // Return a string with the current date/time
  97 WXDLLIMPEXP_BASE wxString wxNow();
  98
  99 // Return path where wxWidgets is installed (mostly useful in Unices)
 100 WXDLLIMPEXP_BASE const wxChar *wxGetInstallPrefix();
 101 // Return path to wxWin data (/usr/share/wx/%{version}) (Unices)
 102 WXDLLIMPEXP_BASE wxString wxGetDataDir();
 103
 104
 105 #if wxUSE_GUI
 106
 107 // Get the state of a key (true if pressed, false if not)
 108 // This is generally most useful getting the state of
 109 // the modifier or toggle keys.
 110 WXDLLEXPORT bool wxGetKeyState(wxKeyCode key);
 111
 112
 113 // Don't synthesize KeyUp events holding down a key and producing
 114 // KeyDown events with autorepeat. On by default and always on
 115 // in wxMSW.
 116 WXDLLEXPORT bool wxSetDetectableAutoRepeat( bool flag );
 117
 118 // ----------------------------------------------------------------------------
 119 // Window ID management
 120 // ----------------------------------------------------------------------------
 121
 122 // Generate a unique ID
 123 WXDLLEXPORT long wxNewId();
 124
 125 // Ensure subsequent IDs don't clash with this one
 126 WXDLLEXPORT void wxRegisterId(long id);
 127
 128 // Return the current ID
 129 WXDLLEXPORT long wxGetCurrentId();
 130
 131 #endif // wxUSE_GUI
 132
 133 // ----------------------------------------------------------------------------
 134 // Various conversions
 135 // ----------------------------------------------------------------------------
 136
 137 // these functions are deprecated, use wxString methods instead!
 138 #if WXWIN_COMPATIBILITY_2_4
 139
 140 extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxFloatToStringStr;
 141 extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxDoubleToStringStr;
 142
 143 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToFloat(const wxChar *s, float *number) );
 144 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* FloatToString(float number, const wxChar *fmt = wxFloatToStringStr) );
 145 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToDouble(const wxChar *s, double *number) );
 146 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* DoubleToString(double number, const wxChar *fmt = wxDoubleToStringStr) );
 147 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToInt(const wxChar *s, int *number) );
 148 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToLong(const wxChar *s, long *number) );
 149 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* IntToString(int number) );
 150 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* LongToString(long number) );
 151
 152 #endif // WXWIN_COMPATIBILITY_2_4
 153
 154 // Convert 2-digit hex number to decimal
 155 WXDLLIMPEXP_BASE int wxHexToDec(const wxString& buf);
 156
 157 // Convert decimal integer to 2-character hex string
 158 WXDLLIMPEXP_BASE void wxDecToHex(int dec, wxChar *buf);
 159 WXDLLIMPEXP_BASE wxString wxDecToHex(int dec);
 160
 161 // ----------------------------------------------------------------------------
 162 // Process management
 163 // ----------------------------------------------------------------------------
 164
 165 // NB: for backwards compatibility reasons the values of wxEXEC_[A]SYNC *must*
 166 //     be 0 and 1, don't change!
 167
 168 enum
 169 {
 170     // execute the process asynchronously
 171     wxEXEC_ASYNC    = 0,
 172
 173     // execute it synchronously, i.e. wait until it finishes
 174     wxEXEC_SYNC     = 1,
 175
 176     // under Windows, don't hide the child even if it's IO is redirected (this
 177     // is done by default)
 178     wxEXEC_NOHIDE   = 2,
 179
 180     // under Unix, if the process is the group leader then passing wxKILL_CHILDREN to wxKill
 181     // kills all children as well as pid
 182     wxEXEC_MAKE_GROUP_LEADER = 4,
 183
 184     // by default synchronous execution disables all program windows to avoid
 185     // that the user interacts with the program while the child process is
 186     // running, you can use this flag to prevent this from happening
 187     wxEXEC_NODISABLE = 8
 188 };
 189
 190 // Execute another program.
 191 //
 192 // If flags contain wxEXEC_SYNC, return -1 on failure and the exit code of the
 193 // process if everything was ok. Otherwise (i.e. if wxEXEC_ASYNC), return 0 on
 194 // failure and the PID of the launched process if ok.
 195 WXDLLIMPEXP_BASE long wxExecute(wxChar **argv, int flags = wxEXEC_ASYNC,
 196                            wxProcess *process = (wxProcess *) NULL);
 197 WXDLLIMPEXP_BASE long wxExecute(const wxString& command, int flags = wxEXEC_ASYNC,
 198                            wxProcess *process = (wxProcess *) NULL);
 199
 200 // execute the command capturing its output into an array line by line, this is
 201 // always synchronous
 202 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
 203                                 wxArrayString& output,
 204                                 int flags = 0);
 205
 206 // also capture stderr (also synchronous)
 207 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
 208                                 wxArrayString& output,
 209                                 wxArrayString& error,
 210                                 int flags = 0);
 211
 212 enum wxSignal
 213 {
 214     wxSIGNONE = 0,  // verify if the process exists under Unix
 215     wxSIGHUP,
 216     wxSIGINT,
 217     wxSIGQUIT,
 218     wxSIGILL,
 219     wxSIGTRAP,
 220     wxSIGABRT,
 221     wxSIGIOT = wxSIGABRT,   // another name
 222     wxSIGEMT,
 223     wxSIGFPE,
 224     wxSIGKILL,
 225     wxSIGBUS,
 226     wxSIGSEGV,
 227     wxSIGSYS,
 228     wxSIGPIPE,
 229     wxSIGALRM,
 230     wxSIGTERM
 231
 232     // further signals are different in meaning between different Unix systems
 233 };
 234
 235 enum wxKillError
 236 {
 237     wxKILL_OK,              // no error
 238     wxKILL_BAD_SIGNAL,      // no such signal
 239     wxKILL_ACCESS_DENIED,   // permission denied
 240     wxKILL_NO_PROCESS,      // no such process
 241     wxKILL_ERROR            // another, unspecified error
 242 };
 243
 244 enum wxKillFlags
 245 {
 246     wxKILL_NOCHILDREN = 0,  // don't kill children
 247     wxKILL_CHILDREN = 1     // kill children
 248 };
 249
 250 enum wxShutdownFlags
 251 {
 252     wxSHUTDOWN_POWEROFF,    // power off the computer
 253     wxSHUTDOWN_REBOOT       // shutdown and reboot
 254 };
 255
 256 // Shutdown or reboot the PC
 257 WXDLLIMPEXP_BASE bool wxShutdown(wxShutdownFlags wFlags);
 258
 259 enum wxPowerType
 260 {
 261     wxPOWER_SOCKET,
 262     wxPOWER_BATTERY,
 263     wxPOWER_UNKNOWN
 264 };
 265
 266 WXDLLIMPEXP_BASE wxPowerType wxGetPowerType();
 267
 268 enum wxBatteryState
 269 {
 270     wxBATTERY_NORMAL_STATE,    // system is fully usable
 271     wxBATTERY_LOW_STATE,       // start to worry
 272     wxBATTERY_CRITICAL_STATE,  // save quickly
 273     wxBATTERY_SHUTDOWN_STATE,  // too late
 274     wxBATTERY_UNKNOWN_STATE
 275 };
 276
 277 WXDLLIMPEXP_BASE wxBatteryState wxGetBatteryState();
 278
 279 // send the given signal to the process (only NONE and KILL are supported under
 280 // Windows, all others mean TERM), return 0 if ok and -1 on error
 281 //
 282 // return detailed error in rc if not NULL
 283 WXDLLIMPEXP_BASE int wxKill(long pid,
 284                        wxSignal sig = wxSIGTERM,
 285                        wxKillError *rc = NULL,
 286                        int flags = wxKILL_NOCHILDREN);
 287
 288 // Execute a command in an interactive shell window (always synchronously)
 289 // If no command then just the shell
 290 WXDLLIMPEXP_BASE bool wxShell(const wxString& command = wxEmptyString);
 291
 292 // As wxShell(), but must give a (non interactive) command and its output will
 293 // be returned in output array
 294 WXDLLIMPEXP_BASE bool wxShell(const wxString& command, wxArrayString& output);
 295
 296 // Sleep for nSecs seconds
 297 WXDLLIMPEXP_BASE void wxSleep(int nSecs);
 298
 299 // Sleep for a given amount of milliseconds
 300 WXDLLIMPEXP_BASE void wxMilliSleep(unsigned long milliseconds);
 301
 302 // Sleep for a given amount of microseconds
 303 WXDLLIMPEXP_BASE void wxMicroSleep(unsigned long microseconds);
 304
 305 // Sleep for a given amount of milliseconds (old, bad name), use wxMilliSleep
 306 wxDEPRECATED( WXDLLIMPEXP_BASE void wxUsleep(unsigned long milliseconds) );
 307
 308 // Get the process id of the current process
 309 WXDLLIMPEXP_BASE unsigned long wxGetProcessId();
 310
 311 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 312 WXDLLIMPEXP_BASE wxMemorySize wxGetFreeMemory();
 313
 314 #if wxUSE_ON_FATAL_EXCEPTION
 315
 316 // should wxApp::OnFatalException() be called?
 317 WXDLLIMPEXP_BASE bool wxHandleFatalExceptions(bool doit = true);
 318
 319 #endif // wxUSE_ON_FATAL_EXCEPTION
 320
 321 #if wxABI_VERSION >= 20601
 322 // Launch url in the user's default internet browser
 323 WXDLLIMPEXP_BASE bool wxLaunchDefaultBrowser(const wxString& url);
 324 #endif
 325
 326 // ----------------------------------------------------------------------------
 327 // Environment variables
 328 // ----------------------------------------------------------------------------
 329
 330 // returns true if variable exists (value may be NULL if you just want to check
 331 // for this)
 332 WXDLLIMPEXP_BASE bool wxGetEnv(const wxString& var, wxString *value);
 333
 334 // set the env var name to the given value, return true on success
 335 WXDLLIMPEXP_BASE bool wxSetEnv(const wxString& var, const wxChar *value);
 336
 337 // remove the env var from environment
 338 inline bool wxUnsetEnv(const wxString& var) { return wxSetEnv(var, NULL); }
 339
 340 // ----------------------------------------------------------------------------
 341 // Network and username functions.
 342 // ----------------------------------------------------------------------------
 343
 344 // NB: "char *" functions are deprecated, use wxString ones!
 345
 346 // Get eMail address
 347 WXDLLIMPEXP_BASE bool wxGetEmailAddress(wxChar *buf, int maxSize);
 348 WXDLLIMPEXP_BASE wxString wxGetEmailAddress();
 349
 350 // Get hostname.
 351 WXDLLIMPEXP_BASE bool wxGetHostName(wxChar *buf, int maxSize);
 352 WXDLLIMPEXP_BASE wxString wxGetHostName();
 353
 354 // Get FQDN
 355 WXDLLIMPEXP_BASE wxString wxGetFullHostName();
 356 WXDLLIMPEXP_BASE bool wxGetFullHostName(wxChar *buf, int maxSize);
 357
 358 // Get user ID e.g. jacs (this is known as login name under Unix)
 359 WXDLLIMPEXP_BASE bool wxGetUserId(wxChar *buf, int maxSize);
 360 WXDLLIMPEXP_BASE wxString wxGetUserId();
 361
 362 // Get user name e.g. Julian Smart
 363 WXDLLIMPEXP_BASE bool wxGetUserName(wxChar *buf, int maxSize);
 364 WXDLLIMPEXP_BASE wxString wxGetUserName();
 365
 366 // Get current Home dir and copy to dest (returns pstr->c_str())
 367 WXDLLIMPEXP_BASE wxString wxGetHomeDir();
 368 WXDLLIMPEXP_BASE const wxChar* wxGetHomeDir(wxString *pstr);
 369
 370 // Get the user's home dir (caller must copy --- volatile)
 371 // returns NULL is no HOME dir is known
 372 #if defined(__UNIX__) && wxUSE_UNICODE
 373 WXDLLIMPEXP_BASE const wxMB2WXbuf wxGetUserHome(const wxString& user = wxEmptyString);
 374 #else
 375 WXDLLIMPEXP_BASE wxChar* wxGetUserHome(const wxString& user = wxEmptyString);
 376 #endif
 377
 378 // get number of total/free bytes on the disk where path belongs
 379 WXDLLIMPEXP_BASE bool wxGetDiskSpace(const wxString& path,
 380                                 wxLongLong *pTotal = NULL,
 381                                 wxLongLong *pFree = NULL);
 382
 383 #if wxUSE_GUI // GUI only things from now on
 384
 385 // ----------------------------------------------------------------------------
 386 // Menu accelerators related things
 387 // ----------------------------------------------------------------------------
 388
 389 WXDLLEXPORT wxChar* wxStripMenuCodes(const wxChar *in, wxChar *out = (wxChar *) NULL);
 390 WXDLLEXPORT wxString wxStripMenuCodes(const wxString& str);
 391
 392 #if wxUSE_ACCEL
 393 class WXDLLEXPORT wxAcceleratorEntry;
 394 WXDLLEXPORT wxAcceleratorEntry *wxGetAccelFromString(const wxString& label);
 395 #endif // wxUSE_ACCEL
 396
 397 // ----------------------------------------------------------------------------
 398 // Window search
 399 // ----------------------------------------------------------------------------
 400
 401 // Returns menu item id or wxNOT_FOUND if none.
 402 WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
 403
 404 // Find the wxWindow at the given point. wxGenericFindWindowAtPoint
 405 // is always present but may be less reliable than a native version.
 406 WXDLLEXPORT wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);
 407 WXDLLEXPORT wxWindow* wxFindWindowAtPoint(const wxPoint& pt);
 408
 409 // NB: this function is obsolete, use wxWindow::FindWindowByLabel() instead
 410 //
 411 // Find the window/widget with the given title or label.
 412 // Pass a parent to begin the search from, or NULL to look through
 413 // all windows.
 414 WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
 415
 416 // NB: this function is obsolete, use wxWindow::FindWindowByName() instead
 417 //
 418 // Find window by name, and if that fails, by label.
 419 WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
 420
 421 // ----------------------------------------------------------------------------
 422 // Message/event queue helpers
 423 // ----------------------------------------------------------------------------
 424
 425 // Yield to other apps/messages and disable user input
 426 WXDLLEXPORT bool wxSafeYield(wxWindow *win = NULL, bool onlyIfNeeded = false);
 427
 428 // Enable or disable input to all top level windows
 429 WXDLLEXPORT void wxEnableTopLevelWindows(bool enable = true);
 430
 431 // Check whether this window wants to process messages, e.g. Stop button
 432 // in long calculations.
 433 WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);
 434
 435 // Consume all events until no more left
 436 WXDLLEXPORT void wxFlushEvents();
 437
 438 // a class which disables all windows (except, may be, thegiven one) in its
 439 // ctor and enables them back in its dtor
 440 class WXDLLEXPORT wxWindowDisabler
 441 {
 442 public:
 443     wxWindowDisabler(wxWindow *winToSkip = (wxWindow *)NULL);
 444     ~wxWindowDisabler();
 445
 446 private:
 447     wxWindowList *m_winDisabled;
 448
 449     DECLARE_NO_COPY_CLASS(wxWindowDisabler)
 450 };
 451
 452 // ----------------------------------------------------------------------------
 453 // Cursors
 454 // ----------------------------------------------------------------------------
 455
 456 // Set the cursor to the busy cursor for all windows
 457 class WXDLLEXPORT wxCursor;
 458 extern WXDLLEXPORT_DATA(wxCursor*) wxHOURGLASS_CURSOR;
 459 WXDLLEXPORT void wxBeginBusyCursor(wxCursor *cursor = wxHOURGLASS_CURSOR);
 460
 461 // Restore cursor to normal
 462 WXDLLEXPORT void wxEndBusyCursor();
 463
 464 // true if we're between the above two calls
 465 WXDLLEXPORT bool wxIsBusy();
 466
 467 // Convenience class so we can just create a wxBusyCursor object on the stack
 468 class WXDLLEXPORT wxBusyCursor
 469 {
 470 public:
 471     wxBusyCursor(wxCursor* cursor = wxHOURGLASS_CURSOR)
 472         { wxBeginBusyCursor(cursor); }
 473     ~wxBusyCursor()
 474         { wxEndBusyCursor(); }
 475
 476     // FIXME: These two methods are currently only implemented (and needed?)
 477     //        in wxGTK.  BusyCursor handling should probably be moved to
 478     //        common code since the wxGTK and wxMSW implementations are very
 479     //        similar except for wxMSW using HCURSOR directly instead of
 480     //        wxCursor..  -- RL.
 481     static const wxCursor &GetStoredCursor();
 482     static const wxCursor GetBusyCursor();
 483 };
 484
 485
 486 // ----------------------------------------------------------------------------
 487 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 488 // ----------------------------------------------------------------------------
 489
 490 #if wxUSE_RESOURCES
 491 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file = wxEmptyString);
 492 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file = wxEmptyString);
 493 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file = wxEmptyString);
 494 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file = wxEmptyString);
 495
 496 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file = wxEmptyString);
 497 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file = wxEmptyString);
 498 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file = wxEmptyString);
 499 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file = wxEmptyString);
 500 #endif // wxUSE_RESOURCES
 501
 502 void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
 503
 504 // MSW only: get user-defined resource from the .res file.
 505 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 506 #ifdef __WXMSW__
 507     extern WXDLLEXPORT const wxChar* wxUserResourceStr;
 508     WXDLLEXPORT wxChar* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
 509 #endif // MSW
 510
 511 // ----------------------------------------------------------------------------
 512 // Display and colorss (X only)
 513 // ----------------------------------------------------------------------------
 514
 515 #ifdef __WXGTK__
 516     void *wxGetDisplay();
 517 #endif
 518
 519 #ifdef __X__
 520     WXDLLIMPEXP_CORE WXDisplay *wxGetDisplay();
 521     WXDLLIMPEXP_CORE bool wxSetDisplay(const wxString& display_name);
 522     WXDLLIMPEXP_CORE wxString wxGetDisplayName();
 523 #endif // X or GTK+
 524
 525 #ifdef __X__
 526
 527 #ifdef __VMS__ // Xlib.h for VMS is not (yet) compatible with C++
 528                // The resulting warnings are switched off here
 529 #pragma message disable nosimpint
 530 #endif
 531 // #include <X11/Xlib.h>
 532 #ifdef __VMS__
 533 #pragma message enable nosimpint
 534 #endif
 535
 536 #endif //__X__
 537
 538 #endif // wxUSE_GUI
 539
 540 // ----------------------------------------------------------------------------
 541 // wxYield(): these functions are obsolete, please use wxApp methods instead!
 542 // ----------------------------------------------------------------------------
 543
 544 // Yield to other apps/messages
 545 WXDLLIMPEXP_BASE bool wxYield();
 546
 547 // Like wxYield, but fails silently if the yield is recursive.
 548 WXDLLIMPEXP_BASE bool wxYieldIfNeeded();
 549
 550 // ----------------------------------------------------------------------------
 551 // Error message functions used by wxWidgets (deprecated, use wxLog)
 552 // ----------------------------------------------------------------------------
 553
 554 #if WXWIN_COMPATIBILITY_2_2
 555
 556 // Format a message on the standard error (UNIX) or the debugging
 557 // stream (Windows)
 558 wxDEPRECATED( WXDLLIMPEXP_BASE void wxDebugMsg(const wxChar *fmt ...) ATTRIBUTE_PRINTF_1 );
 559
 560 // Non-fatal error (continues)
 561 extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxInternalErrorStr;
 562 wxDEPRECATED( WXDLLIMPEXP_BASE void wxError(const wxString& msg, const wxString& title = wxInternalErrorStr) );
 563
 564 // Fatal error (exits)
 565 extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxFatalErrorStr;
 566 wxDEPRECATED( WXDLLIMPEXP_BASE void wxFatalError(const wxString& msg, const wxString& title = wxFatalErrorStr) );
 567
 568 #endif // WXWIN_COMPATIBILITY_2_2
 569
 570 #endif
 571     // _WX_UTILSH__