include/wx/utils.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/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 #if wxUSE_GUI
  23     #include "wx/gdicmn.h"
  24 #endif
  25
  26 class WXDLLIMPEXP_BASE wxArrayString;
  27 class WXDLLIMPEXP_BASE wxArrayInt;
  28
  29 // need this for wxGetDiskSpace() as we can't, unfortunately, forward declare
  30 // wxLongLong
  31 #include "wx/longlong.h"
  32
  33 // need for wxOperatingSystemId
  34 #include "wx/platinfo.h"
  35
  36 #ifdef __WATCOMC__
  37     #include <direct.h>
  38 #elif defined(__X__)
  39     #include <dirent.h>
  40     #include <unistd.h>
  41 #endif
  42
  43 #include <stdio.h>
  44
  45 // ----------------------------------------------------------------------------
  46 // Forward declaration
  47 // ----------------------------------------------------------------------------
  48
  49 class WXDLLIMPEXP_CORE wxProcess;
  50 class WXDLLIMPEXP_CORE wxFrame;
  51 class WXDLLIMPEXP_CORE wxWindow;
  52 class WXDLLIMPEXP_CORE wxWindowList;
  53
  54 // ----------------------------------------------------------------------------
  55 // Macros
  56 // ----------------------------------------------------------------------------
  57
  58 #define wxMax(a,b)            (((a) > (b)) ? (a) : (b))
  59 #define wxMin(a,b)            (((a) < (b)) ? (a) : (b))
  60 #define wxClip(a,b,c)         (((a) < (b)) ? (b) : (((a) > (c)) ? (c) : (a)))
  61
  62 // wxGetFreeMemory can return huge amount of memory on 32-bit platforms as well
  63 // so to always use long long for its result type on all platforms which
  64 // support it
  65 #if wxUSE_LONGLONG
  66     typedef wxLongLong wxMemorySize;
  67 #else
  68     typedef long wxMemorySize;
  69 #endif
  70
  71 // ----------------------------------------------------------------------------
  72 // String functions (deprecated, use wxString)
  73 // ----------------------------------------------------------------------------
  74
  75 // Make a copy of this string using 'new'
  76 #if WXWIN_COMPATIBILITY_2_4
  77 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* copystring(const wxChar *s) );
  78 #endif
  79
  80 // A shorter way of using strcmp
  81 #define wxStringEq(s1, s2) (s1 && s2 && (wxStrcmp(s1, s2) == 0))
  82
  83 // ----------------------------------------------------------------------------
  84 // Miscellaneous functions
  85 // ----------------------------------------------------------------------------
  86
  87 // Sound the bell
  88 #if !defined __EMX__ && \
  89     (defined __WXMOTIF__ || defined __WXGTK__ || defined __WXX11__)
  90 WXDLLIMPEXP_CORE void wxBell();
  91 #else
  92 WXDLLIMPEXP_BASE void wxBell();
  93 #endif
  94
  95 // Get OS description as a user-readable string
  96 WXDLLIMPEXP_BASE wxString wxGetOsDescription();
  97
  98 // Get OS version
  99 WXDLLIMPEXP_BASE wxOperatingSystemId wxGetOsVersion(int *majorVsn = (int *) NULL,
 100                                                     int *minorVsn = (int *) NULL);
 101
 102 // Get platform endianness
 103 WXDLLIMPEXP_BASE bool wxIsPlatformLittleEndian();
 104
 105 // Get platform architecture
 106 WXDLLIMPEXP_BASE bool wxIsPlatform64Bit();
 107
 108 // Return a string with the current date/time
 109 WXDLLIMPEXP_BASE wxString wxNow();
 110
 111 // Return path where wxWidgets is installed (mostly useful in Unices)
 112 WXDLLIMPEXP_BASE const wxChar *wxGetInstallPrefix();
 113 // Return path to wxWin data (/usr/share/wx/%{version}) (Unices)
 114 WXDLLIMPEXP_BASE wxString wxGetDataDir();
 115
 116 /*
 117  * Class to make it easier to specify platform-dependent values
 118  *
 119  * Examples:
 120  *  long val = wxPlatform::If(wxMac, 1).ElseIf(wxGTK, 2).ElseIf(stPDA, 5).Else(3);
 121  *  wxString strVal = wxPlatform::If(wxMac, wxT("Mac")).ElseIf(wxMSW, wxT("MSW")).Else(wxT("Other"));
 122  *
 123  * A custom platform symbol:
 124  *
 125  *  #define stPDA 100
 126  *  #ifdef __WXWINCE__
 127  *      wxPlatform::AddPlatform(stPDA);
 128  *  #endif
 129  *
 130  *  long windowStyle = wxCAPTION | (long) wxPlatform::IfNot(stPDA, wxRESIZE_BORDER);
 131  *
 132  */
 133
 134 class WXDLLIMPEXP_BASE wxPlatform
 135 {
 136 public:
 137     wxPlatform() { Init(); }
 138     wxPlatform(const wxPlatform& platform) { Copy(platform); }
 139     void operator = (const wxPlatform& platform) { Copy(platform); }
 140     void Copy(const wxPlatform& platform);
 141
 142     // Specify an optional default value
 143     wxPlatform(int defValue) { Init(); m_longValue = (long)defValue; }
 144     wxPlatform(long defValue) { Init(); m_longValue = defValue; }
 145     wxPlatform(const wxString& defValue) { Init(); m_stringValue = defValue; }
 146     wxPlatform(double defValue) { Init(); m_doubleValue = defValue; }
 147
 148     static wxPlatform If(int platform, long value);
 149     static wxPlatform IfNot(int platform, long value);
 150     wxPlatform& ElseIf(int platform, long value);
 151     wxPlatform& ElseIfNot(int platform, long value);
 152     wxPlatform& Else(long value);
 153
 154     static wxPlatform If(int platform, int value) { return If(platform, (long)value); }
 155     static wxPlatform IfNot(int platform, int value) { return IfNot(platform, (long)value); }
 156     wxPlatform& ElseIf(int platform, int value) { return ElseIf(platform, (long) value); }
 157     wxPlatform& ElseIfNot(int platform, int value) { return ElseIfNot(platform, (long) value); }
 158     wxPlatform& Else(int value) { return Else((long) value); }
 159
 160     static wxPlatform If(int platform, double value);
 161     static wxPlatform IfNot(int platform, double value);
 162     wxPlatform& ElseIf(int platform, double value);
 163     wxPlatform& ElseIfNot(int platform, double value);
 164     wxPlatform& Else(double value);
 165
 166     static wxPlatform If(int platform, const wxString& value);
 167     static wxPlatform IfNot(int platform, const wxString& value);
 168     wxPlatform& ElseIf(int platform, const wxString& value);
 169     wxPlatform& ElseIfNot(int platform, const wxString& value);
 170     wxPlatform& Else(const wxString& value);
 171
 172     long GetInteger() const { return m_longValue; }
 173     const wxString& GetString() const { return m_stringValue; }
 174     double GetDouble() const { return m_doubleValue; }
 175
 176     operator int() const { return (int) GetInteger(); }
 177     operator long() const { return GetInteger(); }
 178     operator double() const { return GetDouble(); }
 179     operator const wxString() const { return GetString(); }
 180     operator const wxChar*() const { return (const wxChar*) GetString(); }
 181
 182     static void AddPlatform(int platform);
 183     static bool Is(int platform);
 184     static void ClearPlatforms();
 185
 186 private:
 187
 188     void Init() { m_longValue = 0; m_doubleValue = 0.0; }
 189
 190     long                m_longValue;
 191     double              m_doubleValue;
 192     wxString            m_stringValue;
 193     static wxArrayInt*  sm_customPlatforms;
 194 };
 195
 196 /// Function for testing current platform
 197 inline bool wxPlatformIs(int platform) { return wxPlatform::Is(platform); }
 198
 199 #if wxUSE_GUI
 200
 201 // Get the state of a key (true if pressed, false if not)
 202 // This is generally most useful getting the state of
 203 // the modifier or toggle keys.
 204 WXDLLEXPORT bool wxGetKeyState(wxKeyCode key);
 205
 206
 207 // Don't synthesize KeyUp events holding down a key and producing
 208 // KeyDown events with autorepeat. On by default and always on
 209 // in wxMSW.
 210 WXDLLEXPORT bool wxSetDetectableAutoRepeat( bool flag );
 211
 212
 213 // wxMouseState is used to hold information about button and modifier state
 214 // and is what is returned from wxGetMouseState.
 215 class WXDLLEXPORT wxMouseState
 216 {
 217 public:
 218     wxMouseState()
 219         : m_x(0), m_y(0),
 220           m_leftDown(false), m_middleDown(false), m_rightDown(false),
 221           m_controlDown(false), m_shiftDown(false), m_altDown(false),
 222           m_metaDown(false)
 223     {}
 224
 225     wxCoord     GetX() { return m_x; }
 226     wxCoord     GetY() { return m_y; }
 227
 228     bool        LeftDown()    { return m_leftDown; }
 229     bool        MiddleDown()  { return m_middleDown; }
 230     bool        RightDown()   { return m_rightDown; }
 231
 232     bool        ControlDown() { return m_controlDown; }
 233     bool        ShiftDown()   { return m_shiftDown; }
 234     bool        AltDown()     { return m_altDown; }
 235     bool        MetaDown()    { return m_metaDown; }
 236     bool        CmdDown()
 237     {
 238 #if defined(__WXMAC__) || defined(__WXCOCOA__)
 239         return MetaDown();
 240 #else
 241         return ControlDown();
 242 #endif
 243     }
 244
 245     void        SetX(wxCoord x) { m_x = x; }
 246     void        SetY(wxCoord y) { m_y = y; }
 247
 248     void        SetLeftDown(bool down)   { m_leftDown = down; }
 249     void        SetMiddleDown(bool down) { m_middleDown = down; }
 250     void        SetRightDown(bool down)  { m_rightDown = down; }
 251
 252     void        SetControlDown(bool down) { m_controlDown = down; }
 253     void        SetShiftDown(bool down)   { m_shiftDown = down; }
 254     void        SetAltDown(bool down)     { m_altDown = down; }
 255     void        SetMetaDown(bool down)    { m_metaDown = down; }
 256
 257 private:
 258     wxCoord     m_x;
 259     wxCoord     m_y;
 260
 261     bool        m_leftDown : 1;
 262     bool        m_middleDown : 1;
 263     bool        m_rightDown : 1;
 264
 265     bool        m_controlDown : 1;
 266     bool        m_shiftDown : 1;
 267     bool        m_altDown : 1;
 268     bool        m_metaDown : 1;
 269 };
 270
 271
 272 // Returns the current state of the mouse position, buttons and modifers
 273 WXDLLEXPORT wxMouseState wxGetMouseState();
 274
 275
 276 // ----------------------------------------------------------------------------
 277 // Window ID management
 278 // ----------------------------------------------------------------------------
 279
 280 // Generate a unique ID
 281 WXDLLEXPORT long wxNewId();
 282
 283 // Ensure subsequent IDs don't clash with this one
 284 WXDLLEXPORT void wxRegisterId(long id);
 285
 286 // Return the current ID
 287 WXDLLEXPORT long wxGetCurrentId();
 288
 289 #endif // wxUSE_GUI
 290
 291 // ----------------------------------------------------------------------------
 292 // Various conversions
 293 // ----------------------------------------------------------------------------
 294
 295 // these functions are deprecated, use wxString methods instead!
 296 #if WXWIN_COMPATIBILITY_2_4
 297
 298 extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxFloatToStringStr;
 299 extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxDoubleToStringStr;
 300
 301 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToFloat(const wxChar *s, float *number) );
 302 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* FloatToString(float number, const wxChar *fmt = wxFloatToStringStr) );
 303 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToDouble(const wxChar *s, double *number) );
 304 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* DoubleToString(double number, const wxChar *fmt = wxDoubleToStringStr) );
 305 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToInt(const wxChar *s, int *number) );
 306 wxDEPRECATED( WXDLLIMPEXP_BASE void StringToLong(const wxChar *s, long *number) );
 307 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* IntToString(int number) );
 308 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* LongToString(long number) );
 309
 310 #endif // WXWIN_COMPATIBILITY_2_4
 311
 312 // Convert 2-digit hex number to decimal
 313 WXDLLIMPEXP_BASE int wxHexToDec(const wxString& buf);
 314
 315 // Convert decimal integer to 2-character hex string
 316 WXDLLIMPEXP_BASE void wxDecToHex(int dec, wxChar *buf);
 317 WXDLLIMPEXP_BASE wxString wxDecToHex(int dec);
 318
 319 // ----------------------------------------------------------------------------
 320 // Process management
 321 // ----------------------------------------------------------------------------
 322
 323 // NB: for backwards compatibility reasons the values of wxEXEC_[A]SYNC *must*
 324 //     be 0 and 1, don't change!
 325
 326 enum
 327 {
 328     // execute the process asynchronously
 329     wxEXEC_ASYNC    = 0,
 330
 331     // execute it synchronously, i.e. wait until it finishes
 332     wxEXEC_SYNC     = 1,
 333
 334     // under Windows, don't hide the child even if it's IO is redirected (this
 335     // is done by default)
 336     wxEXEC_NOHIDE   = 2,
 337
 338     // under Unix, if the process is the group leader then passing wxKILL_CHILDREN to wxKill
 339     // kills all children as well as pid
 340     wxEXEC_MAKE_GROUP_LEADER = 4,
 341
 342     // by default synchronous execution disables all program windows to avoid
 343     // that the user interacts with the program while the child process is
 344     // running, you can use this flag to prevent this from happening
 345     wxEXEC_NODISABLE = 8
 346 };
 347
 348 // Execute another program.
 349 //
 350 // If flags contain wxEXEC_SYNC, return -1 on failure and the exit code of the
 351 // process if everything was ok. Otherwise (i.e. if wxEXEC_ASYNC), return 0 on
 352 // failure and the PID of the launched process if ok.
 353 WXDLLIMPEXP_BASE long wxExecute(wxChar **argv, int flags = wxEXEC_ASYNC,
 354                            wxProcess *process = (wxProcess *) NULL);
 355 WXDLLIMPEXP_BASE long wxExecute(const wxString& command, int flags = wxEXEC_ASYNC,
 356                            wxProcess *process = (wxProcess *) NULL);
 357
 358 // execute the command capturing its output into an array line by line, this is
 359 // always synchronous
 360 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
 361                                 wxArrayString& output,
 362                                 int flags = 0);
 363
 364 // also capture stderr (also synchronous)
 365 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
 366                                 wxArrayString& output,
 367                                 wxArrayString& error,
 368                                 int flags = 0);
 369
 370 #if defined(__WXMSW__) && wxUSE_IPC
 371 // ask a DDE server to execute the DDE request with given parameters
 372 WXDLLIMPEXP_BASE bool wxExecuteDDE(const wxString& ddeServer,
 373                                    const wxString& ddeTopic,
 374                                    const wxString& ddeCommand);
 375 #endif // __WXMSW__ && wxUSE_IPC
 376
 377 enum wxSignal
 378 {
 379     wxSIGNONE = 0,  // verify if the process exists under Unix
 380     wxSIGHUP,
 381     wxSIGINT,
 382     wxSIGQUIT,
 383     wxSIGILL,
 384     wxSIGTRAP,
 385     wxSIGABRT,
 386     wxSIGIOT = wxSIGABRT,   // another name
 387     wxSIGEMT,
 388     wxSIGFPE,
 389     wxSIGKILL,
 390     wxSIGBUS,
 391     wxSIGSEGV,
 392     wxSIGSYS,
 393     wxSIGPIPE,
 394     wxSIGALRM,
 395     wxSIGTERM
 396
 397     // further signals are different in meaning between different Unix systems
 398 };
 399
 400 enum wxKillError
 401 {
 402     wxKILL_OK,              // no error
 403     wxKILL_BAD_SIGNAL,      // no such signal
 404     wxKILL_ACCESS_DENIED,   // permission denied
 405     wxKILL_NO_PROCESS,      // no such process
 406     wxKILL_ERROR            // another, unspecified error
 407 };
 408
 409 enum wxKillFlags
 410 {
 411     wxKILL_NOCHILDREN = 0,  // don't kill children
 412     wxKILL_CHILDREN = 1     // kill children
 413 };
 414
 415 enum wxShutdownFlags
 416 {
 417     wxSHUTDOWN_POWEROFF,    // power off the computer
 418     wxSHUTDOWN_REBOOT       // shutdown and reboot
 419 };
 420
 421 // Shutdown or reboot the PC
 422 WXDLLIMPEXP_BASE bool wxShutdown(wxShutdownFlags wFlags);
 423
 424 // send the given signal to the process (only NONE and KILL are supported under
 425 // Windows, all others mean TERM), return 0 if ok and -1 on error
 426 //
 427 // return detailed error in rc if not NULL
 428 WXDLLIMPEXP_BASE int wxKill(long pid,
 429                        wxSignal sig = wxSIGTERM,
 430                        wxKillError *rc = NULL,
 431                        int flags = wxKILL_NOCHILDREN);
 432
 433 // Execute a command in an interactive shell window (always synchronously)
 434 // If no command then just the shell
 435 WXDLLIMPEXP_BASE bool wxShell(const wxString& command = wxEmptyString);
 436
 437 // As wxShell(), but must give a (non interactive) command and its output will
 438 // be returned in output array
 439 WXDLLIMPEXP_BASE bool wxShell(const wxString& command, wxArrayString& output);
 440
 441 // Sleep for nSecs seconds
 442 WXDLLIMPEXP_BASE void wxSleep(int nSecs);
 443
 444 // Sleep for a given amount of milliseconds
 445 WXDLLIMPEXP_BASE void wxMilliSleep(unsigned long milliseconds);
 446
 447 // Sleep for a given amount of microseconds
 448 WXDLLIMPEXP_BASE void wxMicroSleep(unsigned long microseconds);
 449
 450 // Sleep for a given amount of milliseconds (old, bad name), use wxMilliSleep
 451 wxDEPRECATED( WXDLLIMPEXP_BASE void wxUsleep(unsigned long milliseconds) );
 452
 453 // Get the process id of the current process
 454 WXDLLIMPEXP_BASE unsigned long wxGetProcessId();
 455
 456 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 457 WXDLLIMPEXP_BASE wxMemorySize wxGetFreeMemory();
 458
 459 #if wxUSE_ON_FATAL_EXCEPTION
 460
 461 // should wxApp::OnFatalException() be called?
 462 WXDLLIMPEXP_BASE bool wxHandleFatalExceptions(bool doit = true);
 463
 464 #endif // wxUSE_ON_FATAL_EXCEPTION
 465
 466 // flags for wxLaunchDefaultBrowser
 467 enum
 468 {
 469     wxBROWSER_NEW_WINDOW = 1
 470 };
 471
 472 // Launch url in the user's default internet browser
 473 WXDLLIMPEXP_BASE bool wxLaunchDefaultBrowser(const wxString& url, int flags = 0);
 474
 475 // ----------------------------------------------------------------------------
 476 // Environment variables
 477 // ----------------------------------------------------------------------------
 478
 479 // returns true if variable exists (value may be NULL if you just want to check
 480 // for this)
 481 WXDLLIMPEXP_BASE bool wxGetEnv(const wxString& var, wxString *value);
 482
 483 // set the env var name to the given value, return true on success
 484 WXDLLIMPEXP_BASE bool wxSetEnv(const wxString& var, const wxChar *value);
 485
 486 // remove the env var from environment
 487 inline bool wxUnsetEnv(const wxString& var) { return wxSetEnv(var, NULL); }
 488
 489 // ----------------------------------------------------------------------------
 490 // Network and username functions.
 491 // ----------------------------------------------------------------------------
 492
 493 // NB: "char *" functions are deprecated, use wxString ones!
 494
 495 // Get eMail address
 496 WXDLLIMPEXP_BASE bool wxGetEmailAddress(wxChar *buf, int maxSize);
 497 WXDLLIMPEXP_BASE wxString wxGetEmailAddress();
 498
 499 // Get hostname.
 500 WXDLLIMPEXP_BASE bool wxGetHostName(wxChar *buf, int maxSize);
 501 WXDLLIMPEXP_BASE wxString wxGetHostName();
 502
 503 // Get FQDN
 504 WXDLLIMPEXP_BASE wxString wxGetFullHostName();
 505 WXDLLIMPEXP_BASE bool wxGetFullHostName(wxChar *buf, int maxSize);
 506
 507 // Get user ID e.g. jacs (this is known as login name under Unix)
 508 WXDLLIMPEXP_BASE bool wxGetUserId(wxChar *buf, int maxSize);
 509 WXDLLIMPEXP_BASE wxString wxGetUserId();
 510
 511 // Get user name e.g. Julian Smart
 512 WXDLLIMPEXP_BASE bool wxGetUserName(wxChar *buf, int maxSize);
 513 WXDLLIMPEXP_BASE wxString wxGetUserName();
 514
 515 // Get current Home dir and copy to dest (returns pstr->c_str())
 516 WXDLLIMPEXP_BASE wxString wxGetHomeDir();
 517 WXDLLIMPEXP_BASE const wxChar* wxGetHomeDir(wxString *pstr);
 518
 519 // Get the user's home dir (caller must copy --- volatile)
 520 // returns NULL is no HOME dir is known
 521 #if defined(__UNIX__) && wxUSE_UNICODE
 522 WXDLLIMPEXP_BASE const wxMB2WXbuf wxGetUserHome(const wxString& user = wxEmptyString);
 523 #else
 524 WXDLLIMPEXP_BASE wxChar* wxGetUserHome(const wxString& user = wxEmptyString);
 525 #endif
 526
 527 #if wxUSE_LONGLONG
 528     typedef wxLongLong wxDiskspaceSize_t;
 529 #else
 530     typedef long wxDiskspaceSize_t;
 531 #endif
 532
 533 // get number of total/free bytes on the disk where path belongs
 534 WXDLLIMPEXP_BASE bool wxGetDiskSpace(const wxString& path,
 535                                      wxDiskspaceSize_t *pTotal = NULL,
 536                                      wxDiskspaceSize_t *pFree = NULL);
 537
 538 #if wxUSE_GUI // GUI only things from now on
 539
 540 // ----------------------------------------------------------------------------
 541 // Menu accelerators related things
 542 // ----------------------------------------------------------------------------
 543
 544 // flags for wxStripMenuCodes
 545 enum
 546 {
 547     // strip '&' characters
 548     wxStrip_Mnemonics = 1,
 549
 550     // strip everything after '\t'
 551     wxStrip_Accel = 2,
 552
 553     // strip everything (this is the default)
 554     wxStrip_All = wxStrip_Mnemonics | wxStrip_Accel
 555 };
 556
 557 // strip mnemonics and/or accelerators from the label
 558 WXDLLEXPORT wxString
 559 wxStripMenuCodes(const wxString& str, int flags = wxStrip_All);
 560
 561 // obsolete and deprecated version, do not use
 562 #if WXWIN_COMPATIBILITY_2_6
 563 wxDEPRECATED(
 564     WXDLLEXPORT wxChar* wxStripMenuCodes(const wxChar *in, wxChar *out = NULL)
 565 );
 566 #endif
 567
 568 #if wxUSE_ACCEL
 569 class WXDLLEXPORT wxAcceleratorEntry;
 570 wxDEPRECATED(
 571     WXDLLEXPORT wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
 572 );
 573 #endif // wxUSE_ACCEL
 574
 575 // ----------------------------------------------------------------------------
 576 // Window search
 577 // ----------------------------------------------------------------------------
 578
 579 // Returns menu item id or wxNOT_FOUND if none.
 580 WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
 581
 582 // Find the wxWindow at the given point. wxGenericFindWindowAtPoint
 583 // is always present but may be less reliable than a native version.
 584 WXDLLEXPORT wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);
 585 WXDLLEXPORT wxWindow* wxFindWindowAtPoint(const wxPoint& pt);
 586
 587 // NB: this function is obsolete, use wxWindow::FindWindowByLabel() instead
 588 //
 589 // Find the window/widget with the given title or label.
 590 // Pass a parent to begin the search from, or NULL to look through
 591 // all windows.
 592 WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
 593
 594 // NB: this function is obsolete, use wxWindow::FindWindowByName() instead
 595 //
 596 // Find window by name, and if that fails, by label.
 597 WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
 598
 599 // ----------------------------------------------------------------------------
 600 // Message/event queue helpers
 601 // ----------------------------------------------------------------------------
 602
 603 // Yield to other apps/messages and disable user input
 604 WXDLLEXPORT bool wxSafeYield(wxWindow *win = NULL, bool onlyIfNeeded = false);
 605
 606 // Enable or disable input to all top level windows
 607 WXDLLEXPORT void wxEnableTopLevelWindows(bool enable = true);
 608
 609 // Check whether this window wants to process messages, e.g. Stop button
 610 // in long calculations.
 611 WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);
 612
 613 // Consume all events until no more left
 614 WXDLLEXPORT void wxFlushEvents();
 615
 616 // a class which disables all windows (except, may be, thegiven one) in its
 617 // ctor and enables them back in its dtor
 618 class WXDLLEXPORT wxWindowDisabler
 619 {
 620 public:
 621     wxWindowDisabler(wxWindow *winToSkip = (wxWindow *)NULL);
 622     ~wxWindowDisabler();
 623
 624 private:
 625     wxWindowList *m_winDisabled;
 626
 627     DECLARE_NO_COPY_CLASS(wxWindowDisabler)
 628 };
 629
 630 // ----------------------------------------------------------------------------
 631 // Cursors
 632 // ----------------------------------------------------------------------------
 633
 634 // Set the cursor to the busy cursor for all windows
 635 WXDLLIMPEXP_CORE void wxBeginBusyCursor(const wxCursor *cursor = wxHOURGLASS_CURSOR);
 636
 637 // Restore cursor to normal
 638 WXDLLEXPORT void wxEndBusyCursor();
 639
 640 // true if we're between the above two calls
 641 WXDLLEXPORT bool wxIsBusy();
 642
 643 // Convenience class so we can just create a wxBusyCursor object on the stack
 644 class WXDLLEXPORT wxBusyCursor
 645 {
 646 public:
 647     wxBusyCursor(const wxCursor* cursor = wxHOURGLASS_CURSOR)
 648         { wxBeginBusyCursor(cursor); }
 649     ~wxBusyCursor()
 650         { wxEndBusyCursor(); }
 651
 652     // FIXME: These two methods are currently only implemented (and needed?)
 653     //        in wxGTK.  BusyCursor handling should probably be moved to
 654     //        common code since the wxGTK and wxMSW implementations are very
 655     //        similar except for wxMSW using HCURSOR directly instead of
 656     //        wxCursor..  -- RL.
 657     static const wxCursor &GetStoredCursor();
 658     static const wxCursor GetBusyCursor();
 659 };
 660
 661
 662 // ----------------------------------------------------------------------------
 663 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 664 // ----------------------------------------------------------------------------
 665
 666 #if wxUSE_RESOURCES
 667 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file = wxEmptyString);
 668 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file = wxEmptyString);
 669 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file = wxEmptyString);
 670 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file = wxEmptyString);
 671
 672 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file = wxEmptyString);
 673 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file = wxEmptyString);
 674 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file = wxEmptyString);
 675 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file = wxEmptyString);
 676 #endif // wxUSE_RESOURCES
 677
 678 void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
 679
 680 // MSW only: get user-defined resource from the .res file.
 681 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 682 #ifdef __WXMSW__
 683     extern WXDLLEXPORT const wxChar* wxUserResourceStr;
 684     WXDLLEXPORT wxChar* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
 685 #endif // MSW
 686
 687 // ----------------------------------------------------------------------------
 688 // Display and colorss (X only)
 689 // ----------------------------------------------------------------------------
 690
 691 #ifdef __WXGTK__
 692     void *wxGetDisplay();
 693 #endif
 694
 695 #ifdef __X__
 696     WXDLLIMPEXP_CORE WXDisplay *wxGetDisplay();
 697     WXDLLIMPEXP_CORE bool wxSetDisplay(const wxString& display_name);
 698     WXDLLIMPEXP_CORE wxString wxGetDisplayName();
 699 #endif // X or GTK+
 700
 701 #ifdef __X__
 702
 703 #ifdef __VMS__ // Xlib.h for VMS is not (yet) compatible with C++
 704                // The resulting warnings are switched off here
 705 #pragma message disable nosimpint
 706 #endif
 707 // #include <X11/Xlib.h>
 708 #ifdef __VMS__
 709 #pragma message enable nosimpint
 710 #endif
 711
 712 #endif //__X__
 713
 714 #endif // wxUSE_GUI
 715
 716 // ----------------------------------------------------------------------------
 717 // wxYield(): these functions are obsolete, please use wxApp methods instead!
 718 // ----------------------------------------------------------------------------
 719
 720 // Yield to other apps/messages
 721 WXDLLIMPEXP_BASE bool wxYield();
 722
 723 // Like wxYield, but fails silently if the yield is recursive.
 724 WXDLLIMPEXP_BASE bool wxYieldIfNeeded();
 725
 726 // ----------------------------------------------------------------------------
 727 // Error message functions used by wxWidgets (deprecated, use wxLog)
 728 // ----------------------------------------------------------------------------
 729
 730 #endif
 731     // _WX_UTILSH__