| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/display.cpp |
| 3 | // Purpose: MSW Implementation of wxDisplay class |
| 4 | // Author: Royce Mitchell III, Vadim Zeitlin |
| 5 | // Modified by: Ryan Norton (IsPrimary override) |
| 6 | // Created: 06/21/02 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) wxWidgets team |
| 9 | // Copyright: (c) 2002-2006 wxWidgets team |
| 10 | // Licence: wxWindows licence |
| 11 | ///////////////////////////////////////////////////////////////////////////// |
| 12 | |
| 13 | // =========================================================================== |
| 14 | // declarations |
| 15 | // =========================================================================== |
| 16 | |
| 17 | // --------------------------------------------------------------------------- |
| 18 | // headers |
| 19 | // --------------------------------------------------------------------------- |
| 20 | |
| 21 | // For compilers that support precompilation, includes "wx.h". |
| 22 | #include "wx/wxprec.h" |
| 23 | |
| 24 | #ifdef __BORLANDC__ |
| 25 | #pragma hdrstop |
| 26 | #endif |
| 27 | |
| 28 | #if wxUSE_DISPLAY |
| 29 | |
| 30 | #include "wx/display.h" |
| 31 | |
| 32 | #ifndef WX_PRECOMP |
| 33 | #include "wx/dynarray.h" |
| 34 | #include "wx/app.h" |
| 35 | #include "wx/frame.h" |
| 36 | #endif |
| 37 | |
| 38 | #include "wx/dynload.h" |
| 39 | #include "wx/sysopt.h" |
| 40 | |
| 41 | #include "wx/display_impl.h" |
| 42 | #include "wx/msw/wrapwin.h" |
| 43 | #include "wx/msw/missing.h" |
| 44 | |
| 45 | // define this to use DirectDraw for display mode switching: this is disabled |
| 46 | // by default because ddraw.h is now always available and also it's not really |
| 47 | // clear what are the benefits of using DirectDraw compared to the standard API |
| 48 | |
| 49 | #if !defined(wxUSE_DIRECTDRAW) |
| 50 | #define wxUSE_DIRECTDRAW 0 |
| 51 | #endif |
| 52 | |
| 53 | #ifndef __WXWINCE__ |
| 54 | // Older versions of windef.h don't define HMONITOR. Unfortunately, we |
| 55 | // can't directly test whether HMONITOR is defined or not in windef.h as |
| 56 | // it's not a macro but a typedef, so we test for an unrelated symbol which |
| 57 | // is only defined in winuser.h if WINVER >= 0x0500 |
| 58 | #if !defined(HMONITOR_DECLARED) && !defined(MNS_NOCHECK) |
| 59 | DECLARE_HANDLE(HMONITOR); |
| 60 | typedef BOOL(CALLBACK * MONITORENUMPROC )(HMONITOR, HDC, LPRECT, LPARAM); |
| 61 | typedef struct tagMONITORINFO |
| 62 | { |
| 63 | DWORD cbSize; |
| 64 | RECT rcMonitor; |
| 65 | RECT rcWork; |
| 66 | DWORD dwFlags; |
| 67 | } MONITORINFO, *LPMONITORINFO; |
| 68 | typedef struct tagMONITORINFOEX : public tagMONITORINFO |
| 69 | { |
| 70 | TCHAR szDevice[CCHDEVICENAME]; |
| 71 | } MONITORINFOEX, *LPMONITORINFOEX; |
| 72 | #define MONITOR_DEFAULTTONULL 0x00000000 |
| 73 | #define MONITOR_DEFAULTTOPRIMARY 0x00000001 |
| 74 | #define MONITOR_DEFAULTTONEAREST 0x00000002 |
| 75 | #define MONITORINFOF_PRIMARY 0x00000001 |
| 76 | #define HMONITOR_DECLARED |
| 77 | #endif |
| 78 | #endif // !__WXWINCE__ |
| 79 | |
| 80 | #if wxUSE_DIRECTDRAW |
| 81 | #include <ddraw.h> |
| 82 | |
| 83 | // we don't want to link with ddraw.lib which contains the real |
| 84 | // IID_IDirectDraw2 definition |
| 85 | const GUID wxIID_IDirectDraw2 = |
| 86 | { 0xB3A6F3E0, 0x2B43, 0x11CF, { 0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 } }; |
| 87 | #endif // wxUSE_DIRECTDRAW |
| 88 | |
| 89 | // ---------------------------------------------------------------------------- |
| 90 | // typedefs for dynamically loaded Windows functions |
| 91 | // ---------------------------------------------------------------------------- |
| 92 | |
| 93 | typedef LONG (WINAPI *ChangeDisplaySettingsEx_t)(LPCTSTR lpszDeviceName, |
| 94 | LPDEVMODE lpDevMode, |
| 95 | HWND hwnd, |
| 96 | DWORD dwFlags, |
| 97 | LPVOID lParam); |
| 98 | |
| 99 | #if wxUSE_DIRECTDRAW |
| 100 | typedef BOOL (PASCAL *DDEnumExCallback_t)(GUID *pGuid, |
| 101 | LPTSTR driverDescription, |
| 102 | LPTSTR driverName, |
| 103 | LPVOID lpContext, |
| 104 | HMONITOR hmon); |
| 105 | |
| 106 | typedef HRESULT (WINAPI *DirectDrawEnumerateEx_t)(DDEnumExCallback_t lpCallback, |
| 107 | LPVOID lpContext, |
| 108 | DWORD dwFlags); |
| 109 | |
| 110 | typedef HRESULT (WINAPI *DirectDrawCreate_t)(GUID *lpGUID, |
| 111 | LPDIRECTDRAW *lplpDD, |
| 112 | IUnknown *pUnkOuter); |
| 113 | #endif // wxUSE_DIRECTDRAW |
| 114 | |
| 115 | typedef BOOL (WINAPI *EnumDisplayMonitors_t)(HDC,LPCRECT,MONITORENUMPROC,LPARAM); |
| 116 | typedef HMONITOR (WINAPI *MonitorFromPoint_t)(POINT,DWORD); |
| 117 | typedef HMONITOR (WINAPI *MonitorFromWindow_t)(HWND,DWORD); |
| 118 | typedef BOOL (WINAPI *GetMonitorInfo_t)(HMONITOR,LPMONITORINFO); |
| 119 | |
| 120 | #ifndef __WXWINCE__ |
| 121 | // emulation of ChangeDisplaySettingsEx() for Win95 |
| 122 | LONG WINAPI ChangeDisplaySettingsExForWin95(LPCTSTR WXUNUSED(lpszDeviceName), |
| 123 | LPDEVMODE lpDevMode, |
| 124 | HWND WXUNUSED(hwnd), |
| 125 | DWORD dwFlags, |
| 126 | LPVOID WXUNUSED(lParam)) |
| 127 | { |
| 128 | return ::ChangeDisplaySettings(lpDevMode, dwFlags); |
| 129 | } |
| 130 | #endif // !__WXWINCE__ |
| 131 | |
| 132 | // ---------------------------------------------------------------------------- |
| 133 | // display information classes |
| 134 | // ---------------------------------------------------------------------------- |
| 135 | |
| 136 | struct wxDisplayInfo |
| 137 | { |
| 138 | wxDisplayInfo(HMONITOR hmon = NULL) |
| 139 | { |
| 140 | m_hmon = hmon; |
| 141 | m_flags = (DWORD)-1; |
| 142 | } |
| 143 | |
| 144 | virtual ~wxDisplayInfo() { } |
| 145 | |
| 146 | |
| 147 | // use GetMonitorInfo() to fill in all of our fields if needed (i.e. if it |
| 148 | // hadn't been done before) |
| 149 | void Initialize(); |
| 150 | |
| 151 | |
| 152 | // handle of this monitor used by MonitorXXX() functions, never NULL |
| 153 | HMONITOR m_hmon; |
| 154 | |
| 155 | // the entire area of this monitor in virtual screen coordinates |
| 156 | wxRect m_rect; |
| 157 | |
| 158 | // the work or client area, i.e. the area available for the normal windows |
| 159 | wxRect m_rectClient; |
| 160 | |
| 161 | // the display device name for this monitor, empty initially and retrieved |
| 162 | // on demand by DoGetName() |
| 163 | wxString m_devName; |
| 164 | |
| 165 | // the flags of this monitor, also used as initialization marker: if this |
| 166 | // is -1, GetMonitorInfo() hadn't been called yet |
| 167 | DWORD m_flags; |
| 168 | }; |
| 169 | |
| 170 | WX_DEFINE_ARRAY_PTR(wxDisplayInfo *, wxDisplayInfoArray); |
| 171 | |
| 172 | // ---------------------------------------------------------------------------- |
| 173 | // common base class for all Win32 wxDisplayImpl versions |
| 174 | // ---------------------------------------------------------------------------- |
| 175 | |
| 176 | class wxDisplayImplWin32Base : public wxDisplayImpl |
| 177 | { |
| 178 | public: |
| 179 | wxDisplayImplWin32Base(unsigned n, wxDisplayInfo& info) |
| 180 | : wxDisplayImpl(n), |
| 181 | m_info(info) |
| 182 | { |
| 183 | } |
| 184 | |
| 185 | virtual wxRect GetGeometry() const; |
| 186 | virtual wxRect GetClientArea() const; |
| 187 | virtual wxString GetName() const; |
| 188 | virtual bool IsPrimary() const; |
| 189 | |
| 190 | virtual wxVideoMode GetCurrentMode() const; |
| 191 | |
| 192 | protected: |
| 193 | // convert a DEVMODE to our wxVideoMode |
| 194 | static wxVideoMode ConvertToVideoMode(const DEVMODE& dm) |
| 195 | { |
| 196 | // note that dmDisplayFrequency may be 0 or 1 meaning "standard one" |
| 197 | // and although 0 is ok for us we don't want to return modes with 1hz |
| 198 | // refresh |
| 199 | return wxVideoMode(dm.dmPelsWidth, |
| 200 | dm.dmPelsHeight, |
| 201 | dm.dmBitsPerPel, |
| 202 | dm.dmDisplayFrequency > 1 ? dm.dmDisplayFrequency : 0); |
| 203 | } |
| 204 | |
| 205 | wxDisplayInfo& m_info; |
| 206 | }; |
| 207 | |
| 208 | // ---------------------------------------------------------------------------- |
| 209 | // common base class for all Win32 wxDisplayFactory versions |
| 210 | // ---------------------------------------------------------------------------- |
| 211 | |
| 212 | // functions dynamically bound by wxDisplayFactoryWin32Base::Initialize() |
| 213 | static MonitorFromPoint_t gs_MonitorFromPoint = NULL; |
| 214 | static MonitorFromWindow_t gs_MonitorFromWindow = NULL; |
| 215 | static GetMonitorInfo_t gs_GetMonitorInfo = NULL; |
| 216 | |
| 217 | class wxDisplayFactoryWin32Base : public wxDisplayFactory |
| 218 | { |
| 219 | public: |
| 220 | virtual ~wxDisplayFactoryWin32Base(); |
| 221 | |
| 222 | bool IsOk() const { return !m_displays.empty(); } |
| 223 | |
| 224 | virtual unsigned GetCount() { return unsigned(m_displays.size()); } |
| 225 | virtual int GetFromPoint(const wxPoint& pt); |
| 226 | virtual int GetFromWindow(const wxWindow *window); |
| 227 | |
| 228 | protected: |
| 229 | // ctor checks if the current system supports multimon API and dynamically |
| 230 | // bind the functions we need if this is the case and sets |
| 231 | // ms_supportsMultimon if they're available |
| 232 | wxDisplayFactoryWin32Base(); |
| 233 | |
| 234 | // delete all m_displays elements: can be called from the derived class |
| 235 | // dtor if it is important to do this before destroying it (as in |
| 236 | // wxDisplayFactoryDirectDraw case), otherwise will be done by our dtor |
| 237 | void Clear(); |
| 238 | |
| 239 | // find the monitor corresponding to the given handle, return wxNOT_FOUND |
| 240 | // if not found |
| 241 | int FindDisplayFromHMONITOR(HMONITOR hmon) const; |
| 242 | |
| 243 | |
| 244 | // flag indicating whether gs_MonitorXXX functions are available |
| 245 | static int ms_supportsMultimon; |
| 246 | |
| 247 | // the array containing information about all available displays, should be |
| 248 | // filled by the derived class ctors |
| 249 | wxDisplayInfoArray m_displays; |
| 250 | |
| 251 | |
| 252 | DECLARE_NO_COPY_CLASS(wxDisplayFactoryWin32Base) |
| 253 | }; |
| 254 | |
| 255 | // ---------------------------------------------------------------------------- |
| 256 | // wxDisplay implementation using Windows multi-monitor support functions |
| 257 | // ---------------------------------------------------------------------------- |
| 258 | |
| 259 | class wxDisplayImplMultimon : public wxDisplayImplWin32Base |
| 260 | { |
| 261 | public: |
| 262 | wxDisplayImplMultimon(unsigned n, wxDisplayInfo& info) |
| 263 | : wxDisplayImplWin32Base(n, info) |
| 264 | { |
| 265 | } |
| 266 | |
| 267 | virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const; |
| 268 | virtual bool ChangeMode(const wxVideoMode& mode); |
| 269 | |
| 270 | private: |
| 271 | DECLARE_NO_COPY_CLASS(wxDisplayImplMultimon) |
| 272 | }; |
| 273 | |
| 274 | class wxDisplayFactoryMultimon : public wxDisplayFactoryWin32Base |
| 275 | { |
| 276 | public: |
| 277 | wxDisplayFactoryMultimon(); |
| 278 | |
| 279 | virtual wxDisplayImpl *CreateDisplay(unsigned n); |
| 280 | |
| 281 | private: |
| 282 | // EnumDisplayMonitors() callback |
| 283 | static BOOL CALLBACK MultimonEnumProc(HMONITOR hMonitor, |
| 284 | HDC hdcMonitor, |
| 285 | LPRECT lprcMonitor, |
| 286 | LPARAM dwData); |
| 287 | |
| 288 | |
| 289 | // add a monitor description to m_displays array |
| 290 | void AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor); |
| 291 | }; |
| 292 | |
| 293 | // ---------------------------------------------------------------------------- |
| 294 | // wxDisplay implementation using DirectDraw |
| 295 | // ---------------------------------------------------------------------------- |
| 296 | |
| 297 | #if wxUSE_DIRECTDRAW |
| 298 | |
| 299 | struct wxDisplayInfoDirectDraw : wxDisplayInfo |
| 300 | { |
| 301 | wxDisplayInfoDirectDraw(const GUID& guid, HMONITOR hmon, LPTSTR name) |
| 302 | : wxDisplayInfo(hmon), |
| 303 | m_guid(guid) |
| 304 | { |
| 305 | m_pDD2 = NULL; |
| 306 | m_devName = name; |
| 307 | } |
| 308 | |
| 309 | virtual ~wxDisplayInfoDirectDraw() |
| 310 | { |
| 311 | if ( m_pDD2 ) |
| 312 | m_pDD2->Release(); |
| 313 | } |
| 314 | |
| 315 | |
| 316 | // IDirectDraw object used to control this display, may be NULL |
| 317 | IDirectDraw2 *m_pDD2; |
| 318 | |
| 319 | // DirectDraw GUID for this display, only valid when using DirectDraw |
| 320 | const GUID m_guid; |
| 321 | |
| 322 | |
| 323 | DECLARE_NO_COPY_CLASS(wxDisplayInfoDirectDraw) |
| 324 | }; |
| 325 | |
| 326 | class wxDisplayImplDirectDraw : public wxDisplayImplWin32Base |
| 327 | { |
| 328 | public: |
| 329 | wxDisplayImplDirectDraw(unsigned n, wxDisplayInfo& info, IDirectDraw2 *pDD2) |
| 330 | : wxDisplayImplWin32Base(n, info), |
| 331 | m_pDD2(pDD2) |
| 332 | { |
| 333 | m_pDD2->AddRef(); |
| 334 | } |
| 335 | |
| 336 | virtual ~wxDisplayImplDirectDraw() |
| 337 | { |
| 338 | m_pDD2->Release(); |
| 339 | } |
| 340 | |
| 341 | virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const; |
| 342 | virtual bool ChangeMode(const wxVideoMode& mode); |
| 343 | |
| 344 | private: |
| 345 | IDirectDraw2 *m_pDD2; |
| 346 | |
| 347 | DECLARE_NO_COPY_CLASS(wxDisplayImplDirectDraw) |
| 348 | }; |
| 349 | |
| 350 | class wxDisplayFactoryDirectDraw : public wxDisplayFactoryWin32Base |
| 351 | { |
| 352 | public: |
| 353 | wxDisplayFactoryDirectDraw(); |
| 354 | virtual ~wxDisplayFactoryDirectDraw(); |
| 355 | |
| 356 | virtual wxDisplayImpl *CreateDisplay(unsigned n); |
| 357 | |
| 358 | private: |
| 359 | // callback used with DirectDrawEnumerateEx() |
| 360 | static BOOL WINAPI DDEnumExCallback(GUID *pGuid, |
| 361 | LPTSTR driverDescription, |
| 362 | LPTSTR driverName, |
| 363 | LPVOID lpContext, |
| 364 | HMONITOR hmon); |
| 365 | |
| 366 | // add a monitor description to m_displays array |
| 367 | void AddDisplay(const GUID& guid, HMONITOR hmon, LPTSTR name); |
| 368 | |
| 369 | |
| 370 | // ddraw.dll |
| 371 | wxDynamicLibrary m_dllDDraw; |
| 372 | |
| 373 | // dynamically resolved DirectDrawCreate() |
| 374 | DirectDrawCreate_t m_pfnDirectDrawCreate; |
| 375 | |
| 376 | DECLARE_NO_COPY_CLASS(wxDisplayFactoryDirectDraw) |
| 377 | }; |
| 378 | |
| 379 | #endif // wxUSE_DIRECTDRAW |
| 380 | |
| 381 | |
| 382 | // ============================================================================ |
| 383 | // common classes implementation |
| 384 | // ============================================================================ |
| 385 | |
| 386 | // ---------------------------------------------------------------------------- |
| 387 | // wxDisplay |
| 388 | // ---------------------------------------------------------------------------- |
| 389 | |
| 390 | /* static */ wxDisplayFactory *wxDisplay::CreateFactory() |
| 391 | { |
| 392 | // we have 2 implementations for modern Windows: one using standard Win32 |
| 393 | // and another using DirectDraw, the choice between them is done using a |
| 394 | // system option |
| 395 | |
| 396 | #if wxUSE_DIRECTDRAW |
| 397 | if ( wxSystemOptions::GetOptionInt(_T("msw.display.directdraw")) ) |
| 398 | { |
| 399 | wxDisplayFactoryDirectDraw *factoryDD = new wxDisplayFactoryDirectDraw; |
| 400 | if ( factoryDD->IsOk() ) |
| 401 | return factoryDD; |
| 402 | |
| 403 | delete factoryDD; |
| 404 | } |
| 405 | #endif // wxUSE_DIRECTDRAW |
| 406 | |
| 407 | wxDisplayFactoryMultimon *factoryMM = new wxDisplayFactoryMultimon; |
| 408 | if ( factoryMM->IsOk() ) |
| 409 | return factoryMM; |
| 410 | |
| 411 | delete factoryMM; |
| 412 | |
| 413 | |
| 414 | // finally fall back to a stub implementation if all else failed (Win95?) |
| 415 | return new wxDisplayFactorySingle; |
| 416 | } |
| 417 | |
| 418 | // ---------------------------------------------------------------------------- |
| 419 | // wxDisplayInfo |
| 420 | // ---------------------------------------------------------------------------- |
| 421 | |
| 422 | void wxDisplayInfo::Initialize() |
| 423 | { |
| 424 | if ( m_flags == (DWORD)-1 ) |
| 425 | { |
| 426 | WinStruct<MONITORINFOEX> monInfo; |
| 427 | if ( !gs_GetMonitorInfo(m_hmon, (LPMONITORINFO)&monInfo) ) |
| 428 | { |
| 429 | wxLogLastError(_T("GetMonitorInfo")); |
| 430 | m_flags = 0; |
| 431 | return; |
| 432 | } |
| 433 | |
| 434 | wxCopyRECTToRect(monInfo.rcMonitor, m_rect); |
| 435 | wxCopyRECTToRect(monInfo.rcWork, m_rectClient); |
| 436 | m_devName = monInfo.szDevice; |
| 437 | m_flags = monInfo.dwFlags; |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | // ---------------------------------------------------------------------------- |
| 442 | // wxDisplayImplWin32Base |
| 443 | // ---------------------------------------------------------------------------- |
| 444 | |
| 445 | wxRect wxDisplayImplWin32Base::GetGeometry() const |
| 446 | { |
| 447 | if ( m_info.m_rect.IsEmpty() ) |
| 448 | m_info.Initialize(); |
| 449 | |
| 450 | return m_info.m_rect; |
| 451 | } |
| 452 | |
| 453 | wxRect wxDisplayImplWin32Base::GetClientArea() const |
| 454 | { |
| 455 | if ( m_info.m_rectClient.IsEmpty() ) |
| 456 | m_info.Initialize(); |
| 457 | |
| 458 | return m_info.m_rectClient; |
| 459 | } |
| 460 | |
| 461 | wxString wxDisplayImplWin32Base::GetName() const |
| 462 | { |
| 463 | if ( m_info.m_devName.empty() ) |
| 464 | m_info.Initialize(); |
| 465 | |
| 466 | return m_info.m_devName; |
| 467 | } |
| 468 | |
| 469 | bool wxDisplayImplWin32Base::IsPrimary() const |
| 470 | { |
| 471 | if ( m_info.m_flags == (DWORD)-1 ) |
| 472 | m_info.Initialize(); |
| 473 | |
| 474 | return (m_info.m_flags & MONITORINFOF_PRIMARY) != 0; |
| 475 | } |
| 476 | |
| 477 | wxVideoMode wxDisplayImplWin32Base::GetCurrentMode() const |
| 478 | { |
| 479 | wxVideoMode mode; |
| 480 | |
| 481 | // The first parameter of EnumDisplaySettings() must be NULL under Win95 |
| 482 | // according to MSDN. The version of GetName() we implement for Win95 |
| 483 | // returns an empty string. |
| 484 | const wxString name = GetName(); |
| 485 | const wxChar * const deviceName = name.empty() |
| 486 | ? (const wxChar*)NULL |
| 487 | : (const wxChar*)name.c_str(); |
| 488 | |
| 489 | DEVMODE dm; |
| 490 | dm.dmSize = sizeof(dm); |
| 491 | dm.dmDriverExtra = 0; |
| 492 | if ( !::EnumDisplaySettings(deviceName, ENUM_CURRENT_SETTINGS, &dm) ) |
| 493 | { |
| 494 | wxLogLastError(_T("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)")); |
| 495 | } |
| 496 | else |
| 497 | { |
| 498 | mode = ConvertToVideoMode(dm); |
| 499 | } |
| 500 | |
| 501 | return mode; |
| 502 | } |
| 503 | |
| 504 | // ---------------------------------------------------------------------------- |
| 505 | // wxDisplayFactoryWin32Base |
| 506 | // ---------------------------------------------------------------------------- |
| 507 | |
| 508 | int wxDisplayFactoryWin32Base::ms_supportsMultimon = -1; |
| 509 | |
| 510 | wxDisplayFactoryWin32Base::wxDisplayFactoryWin32Base() |
| 511 | { |
| 512 | if ( ms_supportsMultimon == -1 ) |
| 513 | { |
| 514 | ms_supportsMultimon = 0; |
| 515 | |
| 516 | wxDynamicLibrary dllUser32(_T("user32.dll"), wxDL_VERBATIM | wxDL_QUIET); |
| 517 | |
| 518 | if ( (wxDL_INIT_FUNC(gs_, MonitorFromPoint, dllUser32)) == NULL || |
| 519 | (wxDL_INIT_FUNC(gs_, MonitorFromWindow, dllUser32)) == NULL || |
| 520 | (wxDL_INIT_FUNC_AW(gs_, GetMonitorInfo, dllUser32)) == NULL ) |
| 521 | return; |
| 522 | |
| 523 | ms_supportsMultimon = 1; |
| 524 | |
| 525 | // we can safely let dllUser32 go out of scope, the DLL itself will |
| 526 | // still remain loaded as all Win32 programs use it |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | void wxDisplayFactoryWin32Base::Clear() |
| 531 | { |
| 532 | WX_CLEAR_ARRAY(m_displays); |
| 533 | } |
| 534 | |
| 535 | wxDisplayFactoryWin32Base::~wxDisplayFactoryWin32Base() |
| 536 | { |
| 537 | Clear(); |
| 538 | } |
| 539 | |
| 540 | // helper for GetFromPoint() and GetFromWindow() |
| 541 | int wxDisplayFactoryWin32Base::FindDisplayFromHMONITOR(HMONITOR hmon) const |
| 542 | { |
| 543 | if ( hmon ) |
| 544 | { |
| 545 | const size_t count = m_displays.size(); |
| 546 | for ( size_t n = 0; n < count; n++ ) |
| 547 | { |
| 548 | if ( hmon == m_displays[n]->m_hmon ) |
| 549 | return n; |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | return wxNOT_FOUND; |
| 554 | } |
| 555 | |
| 556 | int wxDisplayFactoryWin32Base::GetFromPoint(const wxPoint& pt) |
| 557 | { |
| 558 | POINT pt2; |
| 559 | pt2.x = pt.x; |
| 560 | pt2.y = pt.y; |
| 561 | |
| 562 | return FindDisplayFromHMONITOR(gs_MonitorFromPoint(pt2, |
| 563 | MONITOR_DEFAULTTONULL)); |
| 564 | } |
| 565 | |
| 566 | int wxDisplayFactoryWin32Base::GetFromWindow(const wxWindow *window) |
| 567 | { |
| 568 | return FindDisplayFromHMONITOR(gs_MonitorFromWindow(GetHwndOf(window), |
| 569 | MONITOR_DEFAULTTONULL)); |
| 570 | } |
| 571 | |
| 572 | // ============================================================================ |
| 573 | // wxDisplay implementation using Win32 multimon API |
| 574 | // ============================================================================ |
| 575 | |
| 576 | // ---------------------------------------------------------------------------- |
| 577 | // wxDisplayFactoryMultimon initialization |
| 578 | // ---------------------------------------------------------------------------- |
| 579 | |
| 580 | wxDisplayFactoryMultimon::wxDisplayFactoryMultimon() |
| 581 | { |
| 582 | if ( !ms_supportsMultimon ) |
| 583 | return; |
| 584 | |
| 585 | // look up EnumDisplayMonitors() which we don't need with DirectDraw |
| 586 | // implementation |
| 587 | EnumDisplayMonitors_t pfnEnumDisplayMonitors; |
| 588 | { |
| 589 | wxDynamicLibrary dllUser32(_T("user32.dll"), wxDL_VERBATIM | wxDL_QUIET); |
| 590 | if ( (wxDL_INIT_FUNC(pfn, EnumDisplayMonitors, dllUser32)) == NULL ) |
| 591 | return; |
| 592 | } |
| 593 | |
| 594 | // enumerate all displays |
| 595 | if ( !pfnEnumDisplayMonitors(NULL, NULL, MultimonEnumProc, (LPARAM)this) ) |
| 596 | { |
| 597 | wxLogLastError(wxT("EnumDisplayMonitors")); |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | /* static */ |
| 602 | BOOL CALLBACK |
| 603 | wxDisplayFactoryMultimon::MultimonEnumProc( |
| 604 | HMONITOR hMonitor, // handle to display monitor |
| 605 | HDC WXUNUSED(hdcMonitor), // handle to monitor-appropriate device context |
| 606 | LPRECT lprcMonitor, // pointer to monitor intersection rectangle |
| 607 | LPARAM dwData // data passed from EnumDisplayMonitors (this) |
| 608 | ) |
| 609 | { |
| 610 | wxDisplayFactoryMultimon *const self = (wxDisplayFactoryMultimon *)dwData; |
| 611 | self->AddDisplay(hMonitor, lprcMonitor); |
| 612 | |
| 613 | // continue the enumeration |
| 614 | return TRUE; |
| 615 | } |
| 616 | |
| 617 | // ---------------------------------------------------------------------------- |
| 618 | // wxDisplayFactoryMultimon helper functions |
| 619 | // ---------------------------------------------------------------------------- |
| 620 | |
| 621 | void wxDisplayFactoryMultimon::AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor) |
| 622 | { |
| 623 | wxDisplayInfo *info = new wxDisplayInfo(hMonitor); |
| 624 | |
| 625 | // we also store the display geometry |
| 626 | info->m_rect = wxRect(lprcMonitor->left, lprcMonitor->top, |
| 627 | lprcMonitor->right - lprcMonitor->left, |
| 628 | lprcMonitor->bottom - lprcMonitor->top); |
| 629 | |
| 630 | // now add this monitor to the array |
| 631 | m_displays.Add(info); |
| 632 | } |
| 633 | |
| 634 | // ---------------------------------------------------------------------------- |
| 635 | // wxDisplayFactoryMultimon inherited pure virtuals implementation |
| 636 | // ---------------------------------------------------------------------------- |
| 637 | |
| 638 | wxDisplayImpl *wxDisplayFactoryMultimon::CreateDisplay(unsigned n) |
| 639 | { |
| 640 | wxCHECK_MSG( n < m_displays.size(), NULL, _T("invalid display index") ); |
| 641 | |
| 642 | return new wxDisplayImplMultimon(n, *(m_displays[n])); |
| 643 | } |
| 644 | |
| 645 | // ---------------------------------------------------------------------------- |
| 646 | // wxDisplayImplMultimon implementation |
| 647 | // ---------------------------------------------------------------------------- |
| 648 | |
| 649 | wxArrayVideoModes |
| 650 | wxDisplayImplMultimon::GetModes(const wxVideoMode& modeMatch) const |
| 651 | { |
| 652 | wxArrayVideoModes modes; |
| 653 | |
| 654 | // The first parameter of EnumDisplaySettings() must be NULL under Win95 |
| 655 | // according to MSDN. The version of GetName() we implement for Win95 |
| 656 | // returns an empty string. |
| 657 | const wxString name = GetName(); |
| 658 | const wxChar * const deviceName = name.empty() |
| 659 | ? (const wxChar*)NULL |
| 660 | : (const wxChar*)name.c_str(); |
| 661 | |
| 662 | DEVMODE dm; |
| 663 | dm.dmSize = sizeof(dm); |
| 664 | dm.dmDriverExtra = 0; |
| 665 | for ( int iModeNum = 0; |
| 666 | ::EnumDisplaySettings(deviceName, iModeNum, &dm); |
| 667 | iModeNum++ ) |
| 668 | { |
| 669 | const wxVideoMode mode = ConvertToVideoMode(dm); |
| 670 | if ( mode.Matches(modeMatch) ) |
| 671 | { |
| 672 | modes.Add(mode); |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | return modes; |
| 677 | } |
| 678 | |
| 679 | bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode) |
| 680 | { |
| 681 | // prepare ChangeDisplaySettingsEx() parameters |
| 682 | DEVMODE dm; |
| 683 | DEVMODE *pDevMode; |
| 684 | |
| 685 | int flags; |
| 686 | |
| 687 | if ( mode == wxDefaultVideoMode ) |
| 688 | { |
| 689 | // reset the video mode to default |
| 690 | pDevMode = NULL; |
| 691 | flags = 0; |
| 692 | } |
| 693 | else // change to the given mode |
| 694 | { |
| 695 | wxCHECK_MSG( mode.w && mode.h, false, |
| 696 | _T("at least the width and height must be specified") ); |
| 697 | |
| 698 | wxZeroMemory(dm); |
| 699 | dm.dmSize = sizeof(dm); |
| 700 | dm.dmDriverExtra = 0; |
| 701 | dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT; |
| 702 | dm.dmPelsWidth = mode.w; |
| 703 | dm.dmPelsHeight = mode.h; |
| 704 | |
| 705 | if ( mode.bpp ) |
| 706 | { |
| 707 | dm.dmFields |= DM_BITSPERPEL; |
| 708 | dm.dmBitsPerPel = mode.bpp; |
| 709 | } |
| 710 | |
| 711 | if ( mode.refresh ) |
| 712 | { |
| 713 | dm.dmFields |= DM_DISPLAYFREQUENCY; |
| 714 | dm.dmDisplayFrequency = mode.refresh; |
| 715 | } |
| 716 | |
| 717 | pDevMode = &dm; |
| 718 | |
| 719 | #ifdef __WXWINCE__ |
| 720 | flags = 0; |
| 721 | #else // !__WXWINCE__ |
| 722 | flags = CDS_FULLSCREEN; |
| 723 | #endif // __WXWINCE__/!__WXWINCE__ |
| 724 | } |
| 725 | |
| 726 | |
| 727 | // get pointer to the function dynamically |
| 728 | // |
| 729 | // we're only called from the main thread, so it's ok to use static |
| 730 | // variable |
| 731 | static ChangeDisplaySettingsEx_t pfnChangeDisplaySettingsEx = NULL; |
| 732 | if ( !pfnChangeDisplaySettingsEx ) |
| 733 | { |
| 734 | wxDynamicLibrary dllUser32(_T("user32.dll"), wxDL_VERBATIM | wxDL_QUIET); |
| 735 | if ( dllUser32.IsLoaded() ) |
| 736 | { |
| 737 | wxDL_INIT_FUNC_AW(pfn, ChangeDisplaySettingsEx, dllUser32); |
| 738 | } |
| 739 | //else: huh, no user32.dll?? |
| 740 | |
| 741 | #ifndef __WXWINCE__ |
| 742 | if ( !pfnChangeDisplaySettingsEx ) |
| 743 | { |
| 744 | // we must be under Win95 and so there is no multiple monitors |
| 745 | // support anyhow |
| 746 | pfnChangeDisplaySettingsEx = ChangeDisplaySettingsExForWin95; |
| 747 | } |
| 748 | #endif // !__WXWINCE__ |
| 749 | } |
| 750 | |
| 751 | // do change the mode |
| 752 | switch ( pfnChangeDisplaySettingsEx |
| 753 | ( |
| 754 | GetName().wx_str(), // display name |
| 755 | pDevMode, // dev mode or NULL to reset |
| 756 | NULL, // reserved |
| 757 | flags, |
| 758 | NULL // pointer to video parameters (not used) |
| 759 | ) ) |
| 760 | { |
| 761 | case DISP_CHANGE_SUCCESSFUL: |
| 762 | // ok |
| 763 | { |
| 764 | // If we have a top-level, full-screen frame, emulate |
| 765 | // the DirectX behavior and resize it. This makes this |
| 766 | // API quite a bit easier to use. |
| 767 | wxWindow *winTop = wxTheApp->GetTopWindow(); |
| 768 | wxFrame *frameTop = wxDynamicCast(winTop, wxFrame); |
| 769 | if (frameTop && frameTop->IsFullScreen()) |
| 770 | { |
| 771 | wxVideoMode current = GetCurrentMode(); |
| 772 | frameTop->SetClientSize(current.w, current.h); |
| 773 | } |
| 774 | } |
| 775 | return true; |
| 776 | |
| 777 | case DISP_CHANGE_BADMODE: |
| 778 | // don't complain about this, this is the only "expected" error |
| 779 | break; |
| 780 | |
| 781 | default: |
| 782 | wxFAIL_MSG( _T("unexpected ChangeDisplaySettingsEx() return value") ); |
| 783 | } |
| 784 | |
| 785 | return false; |
| 786 | } |
| 787 | |
| 788 | |
| 789 | // ============================================================================ |
| 790 | // DirectDraw-based wxDisplay implementation |
| 791 | // ============================================================================ |
| 792 | |
| 793 | #if wxUSE_DIRECTDRAW |
| 794 | |
| 795 | // ---------------------------------------------------------------------------- |
| 796 | // wxDisplayFactoryDirectDraw initialization |
| 797 | // ---------------------------------------------------------------------------- |
| 798 | |
| 799 | wxDisplayFactoryDirectDraw::wxDisplayFactoryDirectDraw() |
| 800 | { |
| 801 | if ( !ms_supportsMultimon ) |
| 802 | return; |
| 803 | |
| 804 | m_dllDDraw.Load(_T("ddraw.dll"), wxDL_VERBATIM | wxDL_QUIET); |
| 805 | |
| 806 | if ( !m_dllDDraw.IsLoaded() ) |
| 807 | return; |
| 808 | |
| 809 | DirectDrawEnumerateEx_t |
| 810 | wxDL_INIT_FUNC_AW(pfn, DirectDrawEnumerateEx, m_dllDDraw); |
| 811 | if ( !pfnDirectDrawEnumerateEx ) |
| 812 | return; |
| 813 | |
| 814 | // we can't continue without DirectDrawCreate() later, so resolve it right |
| 815 | // now and fail the initialization if it's not available |
| 816 | if ( !wxDL_INIT_FUNC(m_pfn, DirectDrawCreate, m_dllDDraw) ) |
| 817 | return; |
| 818 | |
| 819 | if ( (*pfnDirectDrawEnumerateEx)(DDEnumExCallback, |
| 820 | this, |
| 821 | DDENUM_ATTACHEDSECONDARYDEVICES) != DD_OK ) |
| 822 | { |
| 823 | wxLogLastError(_T("DirectDrawEnumerateEx")); |
| 824 | } |
| 825 | } |
| 826 | |
| 827 | wxDisplayFactoryDirectDraw::~wxDisplayFactoryDirectDraw() |
| 828 | { |
| 829 | // we must clear m_displays now, before m_dllDDraw is unloaded as otherwise |
| 830 | // calling m_pDD2->Release() later would crash |
| 831 | Clear(); |
| 832 | } |
| 833 | |
| 834 | // ---------------------------------------------------------------------------- |
| 835 | // callbacks for monitor/modes enumeration stuff |
| 836 | // ---------------------------------------------------------------------------- |
| 837 | |
| 838 | BOOL WINAPI |
| 839 | wxDisplayFactoryDirectDraw::DDEnumExCallback(GUID *pGuid, |
| 840 | LPTSTR WXUNUSED(driverDescription), |
| 841 | LPTSTR driverName, |
| 842 | LPVOID lpContext, |
| 843 | HMONITOR hmon) |
| 844 | { |
| 845 | if ( pGuid ) |
| 846 | { |
| 847 | wxDisplayFactoryDirectDraw * self = |
| 848 | wx_static_cast(wxDisplayFactoryDirectDraw *, lpContext); |
| 849 | self->AddDisplay(*pGuid, hmon, driverName); |
| 850 | } |
| 851 | //else: we're called for the primary monitor, skip it |
| 852 | |
| 853 | // continue the enumeration |
| 854 | return TRUE; |
| 855 | } |
| 856 | |
| 857 | // ---------------------------------------------------------------------------- |
| 858 | // wxDisplayFactoryDirectDraw helpers |
| 859 | // ---------------------------------------------------------------------------- |
| 860 | |
| 861 | void wxDisplayFactoryDirectDraw::AddDisplay(const GUID& guid, |
| 862 | HMONITOR hmon, |
| 863 | LPTSTR name) |
| 864 | { |
| 865 | m_displays.Add(new wxDisplayInfoDirectDraw(guid, hmon, name)); |
| 866 | } |
| 867 | |
| 868 | // ---------------------------------------------------------------------------- |
| 869 | // wxDisplayFactoryDirectDraw inherited pure virtuals implementation |
| 870 | // ---------------------------------------------------------------------------- |
| 871 | |
| 872 | wxDisplayImpl *wxDisplayFactoryDirectDraw::CreateDisplay(unsigned n) |
| 873 | { |
| 874 | wxCHECK_MSG( n < m_displays.size(), NULL, _T("invalid display index") ); |
| 875 | |
| 876 | wxDisplayInfoDirectDraw * |
| 877 | info = wx_static_cast(wxDisplayInfoDirectDraw *, m_displays[n]); |
| 878 | |
| 879 | if ( !info->m_pDD2 ) |
| 880 | { |
| 881 | IDirectDraw *pDD; |
| 882 | GUID guid(info->m_guid); |
| 883 | HRESULT hr = (*m_pfnDirectDrawCreate)(&guid, &pDD, NULL); |
| 884 | |
| 885 | if ( FAILED(hr) || !pDD ) |
| 886 | { |
| 887 | // what to do?? |
| 888 | wxLogApiError(_T("DirectDrawCreate"), hr); |
| 889 | return NULL; |
| 890 | } |
| 891 | |
| 892 | // we got IDirectDraw, but we need IDirectDraw2 |
| 893 | hr = pDD->QueryInterface(wxIID_IDirectDraw2, (void **)&info->m_pDD2); |
| 894 | pDD->Release(); |
| 895 | |
| 896 | if ( FAILED(hr) || !info->m_pDD2 ) |
| 897 | { |
| 898 | wxLogApiError(_T("IDirectDraw::QueryInterface(IDD2)"), hr); |
| 899 | return NULL; |
| 900 | } |
| 901 | |
| 902 | // NB: m_pDD2 will now be only destroyed when m_displays is destroyed |
| 903 | // which is ok as we don't want to recreate DD objects all the time |
| 904 | } |
| 905 | //else: DirectDraw object corresponding to our display already exists |
| 906 | |
| 907 | return new wxDisplayImplDirectDraw(n, *info, info->m_pDD2); |
| 908 | } |
| 909 | |
| 910 | // ============================================================================ |
| 911 | // wxDisplayImplDirectDraw |
| 912 | // ============================================================================ |
| 913 | |
| 914 | // ---------------------------------------------------------------------------- |
| 915 | // video modes enumeration |
| 916 | // ---------------------------------------------------------------------------- |
| 917 | |
| 918 | // tiny helper class used to pass information from GetModes() to |
| 919 | // wxDDEnumModesCallback |
| 920 | class wxDDVideoModesAdder |
| 921 | { |
| 922 | public: |
| 923 | // our Add() method will add modes matching modeMatch to modes array |
| 924 | wxDDVideoModesAdder(wxArrayVideoModes& modes, const wxVideoMode& modeMatch) |
| 925 | : m_modes(modes), |
| 926 | m_modeMatch(modeMatch) |
| 927 | { |
| 928 | } |
| 929 | |
| 930 | void Add(const wxVideoMode& mode) |
| 931 | { |
| 932 | if ( mode.Matches(m_modeMatch) ) |
| 933 | m_modes.Add(mode); |
| 934 | } |
| 935 | |
| 936 | private: |
| 937 | wxArrayVideoModes& m_modes; |
| 938 | const wxVideoMode& m_modeMatch; |
| 939 | |
| 940 | DECLARE_NO_COPY_CLASS(wxDDVideoModesAdder) |
| 941 | }; |
| 942 | |
| 943 | HRESULT WINAPI wxDDEnumModesCallback(LPDDSURFACEDESC lpDDSurfaceDesc, |
| 944 | LPVOID lpContext) |
| 945 | { |
| 946 | // we need at least the mode size |
| 947 | static const DWORD FLAGS_REQUIRED = DDSD_HEIGHT | DDSD_WIDTH; |
| 948 | if ( (lpDDSurfaceDesc->dwFlags & FLAGS_REQUIRED) == FLAGS_REQUIRED ) |
| 949 | { |
| 950 | wxDDVideoModesAdder * const vmodes = |
| 951 | wx_static_cast(wxDDVideoModesAdder *, lpContext); |
| 952 | |
| 953 | vmodes->Add(wxVideoMode(lpDDSurfaceDesc->dwWidth, |
| 954 | lpDDSurfaceDesc->dwHeight, |
| 955 | lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount, |
| 956 | lpDDSurfaceDesc->dwRefreshRate)); |
| 957 | } |
| 958 | |
| 959 | // continue the enumeration |
| 960 | return DDENUMRET_OK; |
| 961 | } |
| 962 | |
| 963 | wxArrayVideoModes |
| 964 | wxDisplayImplDirectDraw::GetModes(const wxVideoMode& modeMatch) const |
| 965 | { |
| 966 | wxArrayVideoModes modes; |
| 967 | wxDDVideoModesAdder modesAdder(modes, modeMatch); |
| 968 | |
| 969 | HRESULT hr = m_pDD2->EnumDisplayModes |
| 970 | ( |
| 971 | DDEDM_REFRESHRATES, |
| 972 | NULL, // all modes |
| 973 | &modesAdder, // callback parameter |
| 974 | wxDDEnumModesCallback |
| 975 | ); |
| 976 | |
| 977 | if ( FAILED(hr) ) |
| 978 | { |
| 979 | wxLogApiError(_T("IDirectDraw::EnumDisplayModes"), hr); |
| 980 | } |
| 981 | |
| 982 | return modes; |
| 983 | } |
| 984 | |
| 985 | // ---------------------------------------------------------------------------- |
| 986 | // video mode switching |
| 987 | // ---------------------------------------------------------------------------- |
| 988 | |
| 989 | bool wxDisplayImplDirectDraw::ChangeMode(const wxVideoMode& mode) |
| 990 | { |
| 991 | wxWindow *winTop = wxTheApp->GetTopWindow(); |
| 992 | wxCHECK_MSG( winTop, false, _T("top level window required for DirectX") ); |
| 993 | |
| 994 | HRESULT hr = m_pDD2->SetCooperativeLevel |
| 995 | ( |
| 996 | GetHwndOf(winTop), |
| 997 | DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN |
| 998 | ); |
| 999 | if ( FAILED(hr) ) |
| 1000 | { |
| 1001 | wxLogApiError(_T("IDirectDraw2::SetCooperativeLevel"), hr); |
| 1002 | |
| 1003 | return false; |
| 1004 | } |
| 1005 | |
| 1006 | hr = m_pDD2->SetDisplayMode(mode.w, mode.h, mode.bpp, mode.refresh, 0); |
| 1007 | if ( FAILED(hr) ) |
| 1008 | { |
| 1009 | wxLogApiError(_T("IDirectDraw2::SetDisplayMode"), hr); |
| 1010 | |
| 1011 | return false; |
| 1012 | } |
| 1013 | |
| 1014 | return true; |
| 1015 | } |
| 1016 | |
| 1017 | #endif // wxUSE_DIRECTDRAW |
| 1018 | |
| 1019 | #endif // wxUSE_DISPLAY |