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