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[wxWidgets.git] / 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_FWD_BASE wxArrayString;
27 class WXDLLIMPEXP_FWD_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_FWD_CORE wxProcess;
50 class WXDLLIMPEXP_FWD_CORE wxFrame;
51 class WXDLLIMPEXP_FWD_CORE wxWindow;
52 class WXDLLIMPEXP_FWD_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 // A shorter way of using strcmp
76 #define wxStringEq(s1, s2) (s1 && s2 && (wxStrcmp(s1, s2) == 0))
77
78 // ----------------------------------------------------------------------------
79 // Miscellaneous functions
80 // ----------------------------------------------------------------------------
81
82 // Sound the bell
83 #if !defined __EMX__ && \
84 (defined __WXMOTIF__ || defined __WXGTK__ || defined __WXX11__)
85 WXDLLIMPEXP_CORE void wxBell();
86 #else
87 WXDLLIMPEXP_BASE void wxBell();
88 #endif
89
90 // Get OS description as a user-readable string
91 WXDLLIMPEXP_BASE wxString wxGetOsDescription();
92
93 // Get OS version
94 WXDLLIMPEXP_BASE wxOperatingSystemId wxGetOsVersion(int *majorVsn = (int *) NULL,
95 int *minorVsn = (int *) NULL);
96
97 // Get platform endianness
98 WXDLLIMPEXP_BASE bool wxIsPlatformLittleEndian();
99
100 // Get platform architecture
101 WXDLLIMPEXP_BASE bool wxIsPlatform64Bit();
102
103 // Return a string with the current date/time
104 WXDLLIMPEXP_BASE wxString wxNow();
105
106 // Return path where wxWidgets is installed (mostly useful in Unices)
107 WXDLLIMPEXP_BASE const wxChar *wxGetInstallPrefix();
108 // Return path to wxWin data (/usr/share/wx/%{version}) (Unices)
109 WXDLLIMPEXP_BASE wxString wxGetDataDir();
110
111 /*
112 * Class to make it easier to specify platform-dependent values
113 *
114 * Examples:
115 * long val = wxPlatform::If(wxMac, 1).ElseIf(wxGTK, 2).ElseIf(stPDA, 5).Else(3);
116 * wxString strVal = wxPlatform::If(wxMac, wxT("Mac")).ElseIf(wxMSW, wxT("MSW")).Else(wxT("Other"));
117 *
118 * A custom platform symbol:
119 *
120 * #define stPDA 100
121 * #ifdef __WXWINCE__
122 * wxPlatform::AddPlatform(stPDA);
123 * #endif
124 *
125 * long windowStyle = wxCAPTION | (long) wxPlatform::IfNot(stPDA, wxRESIZE_BORDER);
126 *
127 */
128
129 class WXDLLIMPEXP_BASE wxPlatform
130 {
131 public:
132 wxPlatform() { Init(); }
133 wxPlatform(const wxPlatform& platform) { Copy(platform); }
134 void operator = (const wxPlatform& platform) { Copy(platform); }
135 void Copy(const wxPlatform& platform);
136
137 // Specify an optional default value
138 wxPlatform(int defValue) { Init(); m_longValue = (long)defValue; }
139 wxPlatform(long defValue) { Init(); m_longValue = defValue; }
140 wxPlatform(const wxString& defValue) { Init(); m_stringValue = defValue; }
141 wxPlatform(double defValue) { Init(); m_doubleValue = defValue; }
142
143 static wxPlatform If(int platform, long value);
144 static wxPlatform IfNot(int platform, long value);
145 wxPlatform& ElseIf(int platform, long value);
146 wxPlatform& ElseIfNot(int platform, long value);
147 wxPlatform& Else(long value);
148
149 static wxPlatform If(int platform, int value) { return If(platform, (long)value); }
150 static wxPlatform IfNot(int platform, int value) { return IfNot(platform, (long)value); }
151 wxPlatform& ElseIf(int platform, int value) { return ElseIf(platform, (long) value); }
152 wxPlatform& ElseIfNot(int platform, int value) { return ElseIfNot(platform, (long) value); }
153 wxPlatform& Else(int value) { return Else((long) value); }
154
155 static wxPlatform If(int platform, double value);
156 static wxPlatform IfNot(int platform, double value);
157 wxPlatform& ElseIf(int platform, double value);
158 wxPlatform& ElseIfNot(int platform, double value);
159 wxPlatform& Else(double value);
160
161 static wxPlatform If(int platform, const wxString& value);
162 static wxPlatform IfNot(int platform, const wxString& value);
163 wxPlatform& ElseIf(int platform, const wxString& value);
164 wxPlatform& ElseIfNot(int platform, const wxString& value);
165 wxPlatform& Else(const wxString& value);
166
167 long GetInteger() const { return m_longValue; }
168 const wxString& GetString() const { return m_stringValue; }
169 double GetDouble() const { return m_doubleValue; }
170
171 operator int() const { return (int) GetInteger(); }
172 operator long() const { return GetInteger(); }
173 operator double() const { return GetDouble(); }
174 operator const wxString&() const { return GetString(); }
175
176 static void AddPlatform(int platform);
177 static bool Is(int platform);
178 static void ClearPlatforms();
179
180 private:
181
182 void Init() { m_longValue = 0; m_doubleValue = 0.0; }
183
184 long m_longValue;
185 double m_doubleValue;
186 wxString m_stringValue;
187 static wxArrayInt* sm_customPlatforms;
188 };
189
190 /// Function for testing current platform
191 inline bool wxPlatformIs(int platform) { return wxPlatform::Is(platform); }
192
193 #if wxUSE_GUI
194
195 // Get the state of a key (true if pressed, false if not)
196 // This is generally most useful getting the state of
197 // the modifier or toggle keys.
198 WXDLLEXPORT bool wxGetKeyState(wxKeyCode key);
199
200
201 // Don't synthesize KeyUp events holding down a key and producing
202 // KeyDown events with autorepeat. On by default and always on
203 // in wxMSW.
204 WXDLLEXPORT bool wxSetDetectableAutoRepeat( bool flag );
205
206
207 // wxMouseState is used to hold information about button and modifier state
208 // and is what is returned from wxGetMouseState.
209 class WXDLLEXPORT wxMouseState
210 {
211 public:
212 wxMouseState()
213 : m_x(0), m_y(0),
214 m_leftDown(false), m_middleDown(false), m_rightDown(false),
215 m_aux1Down(false), m_aux2Down(false),
216 m_controlDown(false), m_shiftDown(false), m_altDown(false),
217 m_metaDown(false)
218 {}
219
220 wxCoord GetX() { return m_x; }
221 wxCoord GetY() { return m_y; }
222
223 bool LeftDown() { return m_leftDown; }
224 bool MiddleDown() { return m_middleDown; }
225 bool RightDown() { return m_rightDown; }
226 bool Aux1Down() { return m_aux1Down; }
227 bool Aux2Down() { return m_aux2Down; }
228
229 bool ControlDown() { return m_controlDown; }
230 bool ShiftDown() { return m_shiftDown; }
231 bool AltDown() { return m_altDown; }
232 bool MetaDown() { return m_metaDown; }
233 bool CmdDown()
234 {
235 #if defined(__WXMAC__) || defined(__WXCOCOA__)
236 return MetaDown();
237 #else
238 return ControlDown();
239 #endif
240 }
241
242 void SetX(wxCoord x) { m_x = x; }
243 void SetY(wxCoord y) { m_y = y; }
244
245 void SetLeftDown(bool down) { m_leftDown = down; }
246 void SetMiddleDown(bool down) { m_middleDown = down; }
247 void SetRightDown(bool down) { m_rightDown = down; }
248 void SetAux1Down(bool down) { m_aux1Down = down; }
249 void SetAux2Down(bool down) { m_aux2Down = down; }
250
251 void SetControlDown(bool down) { m_controlDown = down; }
252 void SetShiftDown(bool down) { m_shiftDown = down; }
253 void SetAltDown(bool down) { m_altDown = down; }
254 void SetMetaDown(bool down) { m_metaDown = down; }
255
256 private:
257 wxCoord m_x;
258 wxCoord m_y;
259
260 bool m_leftDown : 1;
261 bool m_middleDown : 1;
262 bool m_rightDown : 1;
263 bool m_aux1Down : 1;
264 bool m_aux2Down : 1;
265
266 bool m_controlDown : 1;
267 bool m_shiftDown : 1;
268 bool m_altDown : 1;
269 bool m_metaDown : 1;
270 };
271
272
273 // Returns the current state of the mouse position, buttons and modifers
274 WXDLLEXPORT wxMouseState wxGetMouseState();
275
276 #endif // wxUSE_GUI
277
278 // ----------------------------------------------------------------------------
279 // Window ID management
280 // ----------------------------------------------------------------------------
281
282 // Ensure subsequent IDs don't clash with this one
283 WXDLLIMPEXP_BASE void wxRegisterId(long id);
284
285 // Return the current ID
286 WXDLLIMPEXP_BASE long wxGetCurrentId();
287
288 // Generate a unique ID
289 WXDLLIMPEXP_BASE long wxNewId();
290
291 // ----------------------------------------------------------------------------
292 // Various conversions
293 // ----------------------------------------------------------------------------
294
295 // Convert 2-digit hex number to decimal
296 WXDLLIMPEXP_BASE int wxHexToDec(const wxString& buf);
297
298 // Convert decimal integer to 2-character hex string
299 WXDLLIMPEXP_BASE void wxDecToHex(int dec, wxChar *buf);
300 WXDLLIMPEXP_BASE void wxDecToHex(int dec, char* ch1, char* ch2);
301 WXDLLIMPEXP_BASE wxString wxDecToHex(int dec);
302
303 // ----------------------------------------------------------------------------
304 // Process management
305 // ----------------------------------------------------------------------------
306
307 // NB: for backwards compatibility reasons the values of wxEXEC_[A]SYNC *must*
308 // be 0 and 1, don't change!
309
310 enum
311 {
312 // execute the process asynchronously
313 wxEXEC_ASYNC = 0,
314
315 // execute it synchronously, i.e. wait until it finishes
316 wxEXEC_SYNC = 1,
317
318 // under Windows, don't hide the child even if it's IO is redirected (this
319 // is done by default)
320 wxEXEC_NOHIDE = 2,
321
322 // under Unix, if the process is the group leader then passing wxKILL_CHILDREN to wxKill
323 // kills all children as well as pid
324 wxEXEC_MAKE_GROUP_LEADER = 4,
325
326 // by default synchronous execution disables all program windows to avoid
327 // that the user interacts with the program while the child process is
328 // running, you can use this flag to prevent this from happening
329 wxEXEC_NODISABLE = 8,
330
331 // by default, the event loop is run while waiting for synchronous execution
332 // to complete and this flag can be used to simply block the main process
333 // until the child process finishes
334 wxEXEC_NOEVENTS = 16,
335
336 // convenient synonym for flags given system()-like behaviour
337 wxEXEC_BLOCK = wxEXEC_SYNC | wxEXEC_NOEVENTS
338 };
339
340 // Execute another program.
341 //
342 // If flags contain wxEXEC_SYNC, return -1 on failure and the exit code of the
343 // process if everything was ok. Otherwise (i.e. if wxEXEC_ASYNC), return 0 on
344 // failure and the PID of the launched process if ok.
345 WXDLLIMPEXP_BASE long wxExecute(wxChar **argv, int flags = wxEXEC_ASYNC,
346 wxProcess *process = (wxProcess *) NULL);
347 WXDLLIMPEXP_BASE long wxExecute(const wxString& command, int flags = wxEXEC_ASYNC,
348 wxProcess *process = (wxProcess *) NULL);
349
350 // execute the command capturing its output into an array line by line, this is
351 // always synchronous
352 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
353 wxArrayString& output,
354 int flags = 0);
355
356 // also capture stderr (also synchronous)
357 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
358 wxArrayString& output,
359 wxArrayString& error,
360 int flags = 0);
361
362 #if defined(__WXMSW__) && wxUSE_IPC
363 // ask a DDE server to execute the DDE request with given parameters
364 WXDLLIMPEXP_BASE bool wxExecuteDDE(const wxString& ddeServer,
365 const wxString& ddeTopic,
366 const wxString& ddeCommand);
367 #endif // __WXMSW__ && wxUSE_IPC
368
369 enum wxSignal
370 {
371 wxSIGNONE = 0, // verify if the process exists under Unix
372 wxSIGHUP,
373 wxSIGINT,
374 wxSIGQUIT,
375 wxSIGILL,
376 wxSIGTRAP,
377 wxSIGABRT,
378 wxSIGIOT = wxSIGABRT, // another name
379 wxSIGEMT,
380 wxSIGFPE,
381 wxSIGKILL,
382 wxSIGBUS,
383 wxSIGSEGV,
384 wxSIGSYS,
385 wxSIGPIPE,
386 wxSIGALRM,
387 wxSIGTERM
388
389 // further signals are different in meaning between different Unix systems
390 };
391
392 enum wxKillError
393 {
394 wxKILL_OK, // no error
395 wxKILL_BAD_SIGNAL, // no such signal
396 wxKILL_ACCESS_DENIED, // permission denied
397 wxKILL_NO_PROCESS, // no such process
398 wxKILL_ERROR // another, unspecified error
399 };
400
401 enum wxKillFlags
402 {
403 wxKILL_NOCHILDREN = 0, // don't kill children
404 wxKILL_CHILDREN = 1 // kill children
405 };
406
407 enum wxShutdownFlags
408 {
409 wxSHUTDOWN_POWEROFF, // power off the computer
410 wxSHUTDOWN_REBOOT // shutdown and reboot
411 };
412
413 // Shutdown or reboot the PC
414 WXDLLIMPEXP_BASE bool wxShutdown(wxShutdownFlags wFlags);
415
416 // send the given signal to the process (only NONE and KILL are supported under
417 // Windows, all others mean TERM), return 0 if ok and -1 on error
418 //
419 // return detailed error in rc if not NULL
420 WXDLLIMPEXP_BASE int wxKill(long pid,
421 wxSignal sig = wxSIGTERM,
422 wxKillError *rc = NULL,
423 int flags = wxKILL_NOCHILDREN);
424
425 // Execute a command in an interactive shell window (always synchronously)
426 // If no command then just the shell
427 WXDLLIMPEXP_BASE bool wxShell(const wxString& command = wxEmptyString);
428
429 // As wxShell(), but must give a (non interactive) command and its output will
430 // be returned in output array
431 WXDLLIMPEXP_BASE bool wxShell(const wxString& command, wxArrayString& output);
432
433 // Sleep for nSecs seconds
434 WXDLLIMPEXP_BASE void wxSleep(int nSecs);
435
436 // Sleep for a given amount of milliseconds
437 WXDLLIMPEXP_BASE void wxMilliSleep(unsigned long milliseconds);
438
439 // Sleep for a given amount of microseconds
440 WXDLLIMPEXP_BASE void wxMicroSleep(unsigned long microseconds);
441
442 // Sleep for a given amount of milliseconds (old, bad name), use wxMilliSleep
443 wxDEPRECATED( WXDLLIMPEXP_BASE void wxUsleep(unsigned long milliseconds) );
444
445 // Get the process id of the current process
446 WXDLLIMPEXP_BASE unsigned long wxGetProcessId();
447
448 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
449 WXDLLIMPEXP_BASE wxMemorySize wxGetFreeMemory();
450
451 #if wxUSE_ON_FATAL_EXCEPTION
452
453 // should wxApp::OnFatalException() be called?
454 WXDLLIMPEXP_BASE bool wxHandleFatalExceptions(bool doit = true);
455
456 #endif // wxUSE_ON_FATAL_EXCEPTION
457
458 // ----------------------------------------------------------------------------
459 // Environment variables
460 // ----------------------------------------------------------------------------
461
462 // returns true if variable exists (value may be NULL if you just want to check
463 // for this)
464 WXDLLIMPEXP_BASE bool wxGetEnv(const wxString& var, wxString *value);
465
466 // set the env var name to the given value, return true on success
467 WXDLLIMPEXP_BASE bool wxSetEnv(const wxString& var, const wxString& value);
468
469 // remove the env var from environment
470 WXDLLIMPEXP_BASE bool wxUnsetEnv(const wxString& var);
471
472 #if WXWIN_COMPATIBILITY_2_8
473 inline bool wxSetEnv(const wxString& var, const char *value)
474 { return wxSetEnv(var, wxString(value)); }
475 inline bool wxSetEnv(const wxString& var, const wchar_t *value)
476 { return wxSetEnv(var, wxString(value)); }
477 template<typename T>
478 inline bool wxSetEnv(const wxString& var, const wxCharTypeBuffer<T>& value)
479 { return wxSetEnv(var, wxString(value)); }
480 inline bool wxSetEnv(const wxString& var, const wxCStrData& value)
481 { return wxSetEnv(var, wxString(value)); }
482
483 // this one is for passing NULL directly - don't use it, use wxUnsetEnv instead
484 wxDEPRECATED( inline bool wxSetEnv(const wxString& var, int value) );
485 inline bool wxSetEnv(const wxString& var, int value)
486 {
487 wxASSERT_MSG( value == 0, "using non-NULL integer as string?" );
488 return wxUnsetEnv(var);
489 }
490 #endif // WXWIN_COMPATIBILITY_2_8
491
492 // ----------------------------------------------------------------------------
493 // Network and username functions.
494 // ----------------------------------------------------------------------------
495
496 // NB: "char *" functions are deprecated, use wxString ones!
497
498 // Get eMail address
499 WXDLLIMPEXP_BASE bool wxGetEmailAddress(wxChar *buf, int maxSize);
500 WXDLLIMPEXP_BASE wxString wxGetEmailAddress();
501
502 // Get hostname.
503 WXDLLIMPEXP_BASE bool wxGetHostName(wxChar *buf, int maxSize);
504 WXDLLIMPEXP_BASE wxString wxGetHostName();
505
506 // Get FQDN
507 WXDLLIMPEXP_BASE wxString wxGetFullHostName();
508 WXDLLIMPEXP_BASE bool wxGetFullHostName(wxChar *buf, int maxSize);
509
510 // Get user ID e.g. jacs (this is known as login name under Unix)
511 WXDLLIMPEXP_BASE bool wxGetUserId(wxChar *buf, int maxSize);
512 WXDLLIMPEXP_BASE wxString wxGetUserId();
513
514 // Get user name e.g. Julian Smart
515 WXDLLIMPEXP_BASE bool wxGetUserName(wxChar *buf, int maxSize);
516 WXDLLIMPEXP_BASE wxString wxGetUserName();
517
518 // Get current Home dir and copy to dest (returns pstr->c_str())
519 WXDLLIMPEXP_BASE wxString wxGetHomeDir();
520 WXDLLIMPEXP_BASE const wxChar* wxGetHomeDir(wxString *pstr);
521
522 // Get the user's home dir (caller must copy --- volatile)
523 // returns NULL is no HOME dir is known
524 #if defined(__UNIX__) && wxUSE_UNICODE && !defined(__WINE__)
525 WXDLLIMPEXP_BASE const wxMB2WXbuf wxGetUserHome(const wxString& user = wxEmptyString);
526 #else
527 WXDLLIMPEXP_BASE wxChar* wxGetUserHome(const wxString& user = wxEmptyString);
528 #endif
529
530 #if wxUSE_LONGLONG
531 typedef wxLongLong wxDiskspaceSize_t;
532 #else
533 typedef long wxDiskspaceSize_t;
534 #endif
535
536 // get number of total/free bytes on the disk where path belongs
537 WXDLLIMPEXP_BASE bool wxGetDiskSpace(const wxString& path,
538 wxDiskspaceSize_t *pTotal = NULL,
539 wxDiskspaceSize_t *pFree = NULL);
540
541
542
543 extern "C"
544 {
545 typedef int (wxCMPFUNC_CONV *CMPFUNCDATA)(const void* pItem1, const void* pItem2, const void* user_data);
546 }
547
548
549 WXDLLIMPEXP_BASE void wxQsort(void *const pbase, size_t total_elems,
550 size_t size, CMPFUNCDATA cmp, const void* user_data);
551
552
553 #if wxUSE_GUI // GUI only things from now on
554
555 // ----------------------------------------------------------------------------
556 // Launch default browser
557 // ----------------------------------------------------------------------------
558
559 // flags for wxLaunchDefaultBrowser
560 enum
561 {
562 wxBROWSER_NEW_WINDOW = 1
563 };
564
565 // Launch url in the user's default internet browser
566 WXDLLIMPEXP_CORE bool wxLaunchDefaultBrowser(const wxString& url, int flags = 0);
567
568 // ----------------------------------------------------------------------------
569 // Menu accelerators related things
570 // ----------------------------------------------------------------------------
571
572 // flags for wxStripMenuCodes
573 enum
574 {
575 // strip '&' characters
576 wxStrip_Mnemonics = 1,
577
578 // strip everything after '\t'
579 wxStrip_Accel = 2,
580
581 // strip everything (this is the default)
582 wxStrip_All = wxStrip_Mnemonics | wxStrip_Accel
583 };
584
585 // strip mnemonics and/or accelerators from the label
586 WXDLLEXPORT wxString
587 wxStripMenuCodes(const wxString& str, int flags = wxStrip_All);
588
589 #if WXWIN_COMPATIBILITY_2_6
590 // obsolete and deprecated version, do not use, use the above overload instead
591 wxDEPRECATED(
592 WXDLLEXPORT wxChar* wxStripMenuCodes(const wxChar *in, wxChar *out = NULL)
593 );
594
595 #if wxUSE_ACCEL
596 class WXDLLIMPEXP_FWD_CORE wxAcceleratorEntry;
597
598 // use wxAcceleratorEntry::Create() or FromString() methods instead
599 wxDEPRECATED(
600 WXDLLEXPORT wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
601 );
602 #endif // wxUSE_ACCEL
603
604 #endif // WXWIN_COMPATIBILITY_2_6
605
606 // ----------------------------------------------------------------------------
607 // Window search
608 // ----------------------------------------------------------------------------
609
610 // Returns menu item id or wxNOT_FOUND if none.
611 WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
612
613 // Find the wxWindow at the given point. wxGenericFindWindowAtPoint
614 // is always present but may be less reliable than a native version.
615 WXDLLEXPORT wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);
616 WXDLLEXPORT wxWindow* wxFindWindowAtPoint(const wxPoint& pt);
617
618 // NB: this function is obsolete, use wxWindow::FindWindowByLabel() instead
619 //
620 // Find the window/widget with the given title or label.
621 // Pass a parent to begin the search from, or NULL to look through
622 // all windows.
623 WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
624
625 // NB: this function is obsolete, use wxWindow::FindWindowByName() instead
626 //
627 // Find window by name, and if that fails, by label.
628 WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
629
630 // ----------------------------------------------------------------------------
631 // Message/event queue helpers
632 // ----------------------------------------------------------------------------
633
634 // Yield to other apps/messages and disable user input
635 WXDLLEXPORT bool wxSafeYield(wxWindow *win = NULL, bool onlyIfNeeded = false);
636
637 // Enable or disable input to all top level windows
638 WXDLLEXPORT void wxEnableTopLevelWindows(bool enable = true);
639
640 // Check whether this window wants to process messages, e.g. Stop button
641 // in long calculations.
642 WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);
643
644 // Consume all events until no more left
645 WXDLLEXPORT void wxFlushEvents();
646
647 // a class which disables all windows (except, may be, thegiven one) in its
648 // ctor and enables them back in its dtor
649 class WXDLLEXPORT wxWindowDisabler
650 {
651 public:
652 wxWindowDisabler(wxWindow *winToSkip = (wxWindow *)NULL);
653 ~wxWindowDisabler();
654
655 private:
656 wxWindowList *m_winDisabled;
657
658 DECLARE_NO_COPY_CLASS(wxWindowDisabler)
659 };
660
661 // ----------------------------------------------------------------------------
662 // Cursors
663 // ----------------------------------------------------------------------------
664
665 // Set the cursor to the busy cursor for all windows
666 WXDLLIMPEXP_CORE void wxBeginBusyCursor(const wxCursor *cursor = wxHOURGLASS_CURSOR);
667
668 // Restore cursor to normal
669 WXDLLEXPORT void wxEndBusyCursor();
670
671 // true if we're between the above two calls
672 WXDLLEXPORT bool wxIsBusy();
673
674 // Convenience class so we can just create a wxBusyCursor object on the stack
675 class WXDLLEXPORT wxBusyCursor
676 {
677 public:
678 wxBusyCursor(const wxCursor* cursor = wxHOURGLASS_CURSOR)
679 { wxBeginBusyCursor(cursor); }
680 ~wxBusyCursor()
681 { wxEndBusyCursor(); }
682
683 // FIXME: These two methods are currently only implemented (and needed?)
684 // in wxGTK. BusyCursor handling should probably be moved to
685 // common code since the wxGTK and wxMSW implementations are very
686 // similar except for wxMSW using HCURSOR directly instead of
687 // wxCursor.. -- RL.
688 static const wxCursor &GetStoredCursor();
689 static const wxCursor GetBusyCursor();
690 };
691
692 void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
693
694 // MSW only: get user-defined resource from the .res file.
695 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
696 #ifdef __WXMSW__
697 extern WXDLLEXPORT const wxChar* wxUserResourceStr;
698 WXDLLEXPORT wxChar* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
699 #endif // MSW
700
701 // ----------------------------------------------------------------------------
702 // X11 Display access
703 // ----------------------------------------------------------------------------
704
705 #if defined(__X__) || defined(__WXGTK__)
706
707 #ifdef __WXGTK__
708 WXDLLIMPEXP_CORE void *wxGetDisplay();
709 #endif
710
711 #ifdef __X__
712 WXDLLIMPEXP_CORE WXDisplay *wxGetDisplay();
713 WXDLLIMPEXP_CORE bool wxSetDisplay(const wxString& display_name);
714 WXDLLIMPEXP_CORE wxString wxGetDisplayName();
715 #endif // X or GTK+
716
717 // use this function instead of the functions above in implementation code
718 inline struct _XDisplay *wxGetX11Display()
719 {
720 return (_XDisplay *)wxGetDisplay();
721 }
722
723 #endif // X11 || wxGTK
724
725 #endif // wxUSE_GUI
726
727 // ----------------------------------------------------------------------------
728 // wxYield(): these functions are obsolete, please use wxApp methods instead!
729 // ----------------------------------------------------------------------------
730
731 // Yield to other apps/messages
732 WXDLLIMPEXP_BASE bool wxYield();
733
734 // Like wxYield, but fails silently if the yield is recursive.
735 WXDLLIMPEXP_BASE bool wxYieldIfNeeded();
736
737 // ----------------------------------------------------------------------------
738 // Error message functions used by wxWidgets (deprecated, use wxLog)
739 // ----------------------------------------------------------------------------
740
741 #endif
742 // _WX_UTILSH__