xref: /reactos/dll/cpl/sysdm/general.c (revision 139a3d66) 
1 /*
2  * PROJECT:     ReactOS System Control Panel Applet
3  * LICENSE:     GPL - See COPYING in the top level directory
4  * FILE:        dll/cpl/sysdm/general.c
5  * PURPOSE:     General System Information
6  * COPYRIGHT:   Copyright Thomas Weidenmueller <w3seek@reactos.org>
7  *              Copyright 2006 Ged Murphy <gedmurphy@gmail.com>
8  *              Copyright 2006-2007 Colin Finck <mail@colinfinck.de>
9  *
10  */
11 
12 #include "precomp.h"
13 
14 #include <winnls.h>
15 #include <powrprof.h>
16 #include <buildno.h>
17 #include <strsafe.h>
18 
19 #define ANIM_STEP 2
20 #define ANIM_TIME 50
21 
22 typedef struct _IMGINFO
23 {
24     HBITMAP hBitmap;
25     INT cxSource;
26     INT cySource;
27     INT iPlanes;
28     INT iBits;
29 } IMGINFO, *PIMGINFO;
30 
31 static PIMGINFO pImgInfo;
32 static const BLENDFUNCTION BlendFunc = {AC_SRC_OVER, 0, 255, AC_SRC_ALPHA};
33 
34 VOID ShowLastWin32Error(HWND hWndOwner)
35 {
36     LPTSTR lpMsg;
37     DWORD LastError;
38 
39     LastError = GetLastError();
40     if (LastError == ERROR_SUCCESS)
41         return;
42 
43     if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
44                        FORMAT_MESSAGE_FROM_SYSTEM |
45                        FORMAT_MESSAGE_IGNORE_INSERTS,
46                        NULL,
47                        LastError,
48                        LANG_USER_DEFAULT,
49                        (LPTSTR)&lpMsg,
50                        0, NULL))
51     {
52         return;
53     }
54 
55     MessageBox(hWndOwner, lpMsg, NULL, MB_OK | MB_ICONERROR);
56     LocalFree(lpMsg);
57 }
58 
59 
60 static VOID InitLogo(HWND hwndDlg)
61 {
62     BITMAP logoBitmap;
63     BITMAP maskBitmap;
64     BITMAPINFO bmpi;
65     HDC hDC = GetDC(hwndDlg);
66     HDC hDCLogo = CreateCompatibleDC(NULL);
67     HDC hDCMask = CreateCompatibleDC(NULL);
68     HBITMAP hMask, hLogo, hAlphaLogo = NULL;
69     COLORREF *pBits;
70     INT line, column;
71 
72     if (hDC == NULL || hDCLogo == NULL || hDCMask == NULL)
73         goto Cleanup;
74 
75     ZeroMemory(pImgInfo, sizeof(*pImgInfo));
76     ZeroMemory(&bmpi, sizeof(bmpi));
77 
78     hLogo = (HBITMAP)LoadImageW(hApplet, MAKEINTRESOURCEW(IDB_ROSBMP), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
79     hMask = (HBITMAP)LoadImageW(hApplet, MAKEINTRESOURCEW(IDB_ROSMASK), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
80 
81     if (hLogo != NULL && hMask != NULL)
82     {
83         GetObject(hLogo, sizeof(logoBitmap), &logoBitmap);
84         GetObject(hMask, sizeof(maskBitmap), &maskBitmap);
85 
86         if (logoBitmap.bmHeight != maskBitmap.bmHeight || logoBitmap.bmWidth != maskBitmap.bmWidth)
87             goto Cleanup;
88 
89         bmpi.bmiHeader.biSize = sizeof(BITMAPINFO);
90         bmpi.bmiHeader.biWidth = logoBitmap.bmWidth;
91         bmpi.bmiHeader.biHeight = logoBitmap.bmHeight;
92         bmpi.bmiHeader.biPlanes = 1;
93         bmpi.bmiHeader.biBitCount = 32;
94         bmpi.bmiHeader.biCompression = BI_RGB;
95         bmpi.bmiHeader.biSizeImage = 4 * logoBitmap.bmWidth * logoBitmap.bmHeight;
96 
97         /* Create a premultiplied bitmap */
98         hAlphaLogo = CreateDIBSection(hDC, &bmpi, DIB_RGB_COLORS, (PVOID*)&pBits, 0, 0);
99         if (!hAlphaLogo)
100             goto Cleanup;
101 
102         SelectObject(hDCLogo, hLogo);
103         SelectObject(hDCMask, hMask);
104 
105         for (line = logoBitmap.bmHeight - 1; line >= 0; line--)
106         {
107             for (column = 0; column < logoBitmap.bmWidth; column++)
108             {
109                 COLORREF alpha = GetPixel(hDCMask, column, line) & 0xFF;
110                 COLORREF Color = GetPixel(hDCLogo, column, line);
111                 DWORD r, g, b;
112 
113                 r = GetRValue(Color) * alpha / 255;
114                 g = GetGValue(Color) * alpha / 255;
115                 b = GetBValue(Color) * alpha / 255;
116 
117                 *pBits++ = b | (g << 8) | (r << 16) | (alpha << 24);
118             }
119         }
120 
121         pImgInfo->hBitmap = hAlphaLogo;
122         pImgInfo->cxSource = logoBitmap.bmWidth;
123         pImgInfo->cySource = logoBitmap.bmHeight;
124         pImgInfo->iBits = logoBitmap.bmBitsPixel;
125         pImgInfo->iPlanes = logoBitmap.bmPlanes;
126     }
127 
128 Cleanup:
129     if (hMask != NULL) DeleteObject(hMask);
130     if (hLogo != NULL) DeleteObject(hLogo);
131     if (hDCMask != NULL) DeleteDC(hDCMask);
132     if (hDCLogo != NULL) DeleteDC(hDCLogo);
133     if (hDC != NULL) ReleaseDC(hwndDlg, hDC);
134 }
135 
136 LRESULT CALLBACK RosImageProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
137 {
138     static UINT timerid = 0, top = 0, offset;
139     static HBITMAP hCreditsBitmap;
140 
141     switch (uMsg)
142     {
143         case WM_LBUTTONDBLCLK:
144             if (wParam & (MK_CONTROL | MK_SHIFT))
145             {
146                 if (timerid == 0)
147                 {
148                     HDC hCreditsDC, hLogoDC;
149                     HDC hDC = GetDC(NULL);
150                     HFONT hFont = NULL;
151                     NONCLIENTMETRICS ncm;
152                     RECT rcCredits;
153                     TCHAR szCredits[2048];
154                     INT iDevsHeight;
155 
156                     if (hDC == NULL)
157                         goto Cleanup;
158 
159 					top = 0;
160                     offset = 0;
161                     hCreditsDC = CreateCompatibleDC(hDC);
162                     hLogoDC = CreateCompatibleDC(hCreditsDC);
163 
164                     if (hCreditsDC == NULL || hLogoDC == NULL)
165                         goto Cleanup;
166 
167                     SetRect(&rcCredits, 0, 0, 0, 0);
168 
169                     ncm.cbSize = sizeof(NONCLIENTMETRICS);
170                     SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &ncm, 0);
171 
172                     hFont = CreateFontIndirect(&ncm.lfMessageFont);
173                     if (!hFont)
174                         goto Cleanup;
175                     SelectObject(hCreditsDC, hFont);
176 
177                     LoadString(hApplet, IDS_DEVS, szCredits, sizeof(szCredits) / sizeof(TCHAR));
178                     DrawText(hCreditsDC, szCredits, -1, &rcCredits, DT_CALCRECT);
179 
180                     iDevsHeight = rcCredits.bottom - rcCredits.top;
181 
182                     hCreditsBitmap = CreateBitmap(pImgInfo->cxSource, (2 * pImgInfo->cySource) + iDevsHeight + 1, pImgInfo->iPlanes, pImgInfo->iBits, NULL);
183 
184                     if (!hCreditsBitmap)
185                         goto Cleanup;
186 
187                     SelectObject(hLogoDC, pImgInfo->hBitmap);
188                     SelectObject(hCreditsDC, hCreditsBitmap);
189 
190                     offset += pImgInfo->cySource;
191 
192                     SetRect(&rcCredits, 0, 0, pImgInfo->cxSource, (2 * pImgInfo->cySource) + iDevsHeight + 1);
193                     FillRect(hCreditsDC, &rcCredits, GetSysColorBrush(COLOR_3DFACE));
194 
195                     SetRect(&rcCredits, 0, offset, pImgInfo->cxSource, offset + iDevsHeight + 1);
196                     SetBkMode(hCreditsDC, TRANSPARENT);
197 
198                     OffsetRect(&rcCredits, 1, 1);
199                     SetTextColor(hCreditsDC, GetSysColor(COLOR_BTNSHADOW));
200                     DrawText(hCreditsDC, szCredits, -1, &rcCredits, DT_CENTER);
201 
202                     OffsetRect(&rcCredits, -1, -1);
203                     SetTextColor(hCreditsDC, GetSysColor(COLOR_WINDOWTEXT));
204                     DrawText(hCreditsDC, szCredits, -1, &rcCredits, DT_CENTER);
205 
206                     offset += iDevsHeight;
207 
208                     AlphaBlend(hCreditsDC, 0, 0, pImgInfo->cxSource, pImgInfo->cySource, hLogoDC, 0,  0, pImgInfo->cxSource, pImgInfo->cySource, BlendFunc);
209                     AlphaBlend(hCreditsDC, 0, offset, pImgInfo->cxSource, pImgInfo->cySource, hLogoDC, 0,  0, pImgInfo->cxSource, pImgInfo->cySource, BlendFunc);
210 
211                     timerid = SetTimer(hwnd, 1, ANIM_TIME, NULL);
212 
213 Cleanup:
214                     if (hFont != NULL) DeleteObject(hFont);
215                     if (hLogoDC != NULL) DeleteDC(hLogoDC);
216                     if (hCreditsDC != NULL) DeleteDC(hCreditsDC);
217                     if (hDC != NULL) ReleaseDC(NULL, hDC);
218                 }
219             }
220             break;
221         case WM_LBUTTONDOWN:
222             if (timerid)
223             {
224                 RECT rcCredits;
225                 HDC hDC = GetDC(hwnd);
226                 if (hDC != NULL)
227                 {
228                     GetClientRect(hwnd, &rcCredits);
229                     SetRect(&rcCredits, 0, 0, rcCredits.right, pImgInfo->cySource);
230                     FillRect(hDC, &rcCredits, GetSysColorBrush(COLOR_3DFACE));
231                     ReleaseDC(hwnd, hDC);
232                 }
233                 KillTimer(hwnd, timerid);
234                 if (hCreditsBitmap != NULL)
235                     DeleteObject(hCreditsBitmap);
236 
237                 top = 0;
238                 timerid = 0;
239             }
240 
241             InvalidateRect(hwnd, NULL, FALSE);
242             break;
243         case WM_TIMER:
244             top += ANIM_STEP;
245 
246             if (top > offset)
247             {
248                 RECT rcCredits;
249                 HDC hDC = GetDC(hwnd);
250                 if (hDC != NULL)
251                 {
252                     GetClientRect(hwnd, &rcCredits);
253                     SetRect(&rcCredits, 0, 0, rcCredits.right, pImgInfo->cySource);
254                     FillRect(hDC, &rcCredits, GetSysColorBrush(COLOR_3DFACE));
255                     ReleaseDC(hwnd, hDC);
256                 }
257                 KillTimer(hwnd, timerid);
258                 if (hCreditsBitmap != NULL)
259                     DeleteObject(hCreditsBitmap);
260 
261                 top = 0;
262                 timerid = 0;
263             }
264 
265             InvalidateRect(hwnd, NULL, FALSE);
266             break;
267         case WM_PAINT:
268         {
269             PAINTSTRUCT PS;
270             HDC hdcMem, hdc;
271             LONG left;
272 
273             hdc = wParam != 0 ? (HDC)wParam : BeginPaint(hwnd, &PS);
274 
275             GetClientRect(hwnd, &PS.rcPaint);
276 
277             /* Position image in center of dialog */
278             left = (PS.rcPaint.right - pImgInfo->cxSource) / 2;
279             hdcMem = CreateCompatibleDC(hdc);
280 
281             if (hdcMem != NULL)
282             {
283                 if(timerid != 0)
284                 {
285                     SelectObject(hdcMem, hCreditsBitmap);
286                     BitBlt(hdc, left, PS.rcPaint.top, PS.rcPaint.right - PS.rcPaint.left, PS.rcPaint.top + pImgInfo->cySource, hdcMem, 0, top, SRCCOPY);
287                 }
288                 else
289                 {
290                     SelectObject(hdcMem, pImgInfo->hBitmap);
291                     AlphaBlend(hdc, left, PS.rcPaint.top, pImgInfo->cxSource, pImgInfo->cySource, hdcMem, 0, 0, pImgInfo->cxSource, pImgInfo->cySource, BlendFunc);
292                 }
293 
294                 DeleteDC(hdcMem);
295             }
296 
297             if (wParam == 0)
298                 EndPaint(hwnd,&PS);
299             break;
300         }
301     }
302     return TRUE;
303 }
304 
305 static VOID SetRegTextData(HWND hwnd, HKEY hKey, LPTSTR Value, UINT uID)
306 {
307     LPTSTR lpBuf = NULL;
308     DWORD BufSize = 0;
309     DWORD Type;
310 
311     if (RegQueryValueEx(hKey, Value, NULL, &Type, NULL, &BufSize) == ERROR_SUCCESS)
312     {
313         lpBuf = HeapAlloc(GetProcessHeap(), 0, BufSize);
314 
315         if (!lpBuf)
316             return;
317 
318         if (RegQueryValueEx(hKey, Value, NULL, &Type, (PBYTE)lpBuf, &BufSize) == ERROR_SUCCESS)
319             SetDlgItemText(hwnd, uID, lpBuf);
320 
321         HeapFree(GetProcessHeap(), 0, lpBuf);
322     }
323 }
324 
325 static INT SetProcNameString(HWND hwnd, HKEY hKey, LPTSTR Value, UINT uID1, UINT uID2)
326 {
327     LPTSTR lpBuf = NULL;
328     DWORD BufSize = 0;
329     DWORD Type;
330     INT Ret = 0;
331     TCHAR szBuf[31];
332     TCHAR* szLastSpace;
333     INT LastSpace = 0;
334 
335     if (RegQueryValueEx(hKey, Value, NULL, &Type, NULL, &BufSize) == ERROR_SUCCESS)
336     {
337         lpBuf = HeapAlloc(GetProcessHeap(), 0, BufSize);
338 
339         if (!lpBuf)
340             return 0;
341 
342         if (RegQueryValueEx(hKey, Value, NULL, &Type, (PBYTE)lpBuf, &BufSize) == ERROR_SUCCESS)
343         {
344             if (BufSize > ((30 + 1) * sizeof(TCHAR)))
345             {
346                 /* Wrap the Processor Name String like XP does:                           *
347                 *   - Take the first 30 characters and look for the last space.          *
348                 *     Then wrap the string after this space.                             *
349                 *   - If no space is found, wrap the string after character 30.          *
350                 *                                                                        *
351                 * For example the Processor Name String of a Pentium 4 is right-aligned. *
352                 * With this wrapping the first line looks centered.                      */
353 
354                 _tcsncpy(szBuf, lpBuf, 30);
355                 szBuf[30] = 0;
356                 szLastSpace = _tcsrchr(szBuf, ' ');
357 
358                 if (szLastSpace == 0)
359                 {
360                     LastSpace = 30;
361                 }
362                 else
363                 {
364                     LastSpace = (szLastSpace - szBuf);
365                     szBuf[LastSpace] = 0;
366                 }
367 
368                 _tcsncpy(szBuf, lpBuf, LastSpace);
369 
370                 SetDlgItemText(hwnd, uID1, szBuf);
371                 SetDlgItemText(hwnd, uID2, lpBuf+LastSpace+1);
372 
373                 /* Return the number of used lines */
374                 Ret = 2;
375             }
376             else
377             {
378                 SetDlgItemText(hwnd, uID1, lpBuf);
379                 Ret = 1;
380             }
381         }
382 
383         HeapFree(GetProcessHeap(), 0, lpBuf);
384     }
385 
386     return Ret;
387 }
388 
389 static VOID MakeFloatValueString(DOUBLE* dFloatValue, LPTSTR szOutput, LPTSTR szAppend)
390 {
391     TCHAR szDecimalSeparator[4];
392 
393     /* Get the decimal separator for the current locale */
394     if (GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SDECIMAL, szDecimalSeparator, sizeof(szDecimalSeparator) / sizeof(TCHAR)) > 0)
395     {
396         UCHAR uDecimals;
397         UINT uIntegral;
398 
399         /* Show the value with two decimals */
400         uIntegral = (UINT)*dFloatValue;
401         uDecimals = (UCHAR)((UINT)(*dFloatValue * 100) - uIntegral * 100);
402 
403         wsprintf(szOutput, _T("%u%s%02u %s"), uIntegral, szDecimalSeparator, uDecimals, szAppend);
404     }
405 }
406 
407 static VOID SetProcSpeed(HWND hwnd, HKEY hKey, LPTSTR Value, UINT uID)
408 {
409     TCHAR szBuf[64], szHz[16];
410     DWORD BufSize = sizeof(DWORD);
411     DWORD Type = REG_SZ;
412     PROCESSOR_POWER_INFORMATION ppi;
413 
414     ZeroMemory(&ppi, sizeof(ppi));
415 
416     if ((CallNtPowerInformation(ProcessorInformation,
417                                 NULL,
418                                 0,
419                                 (PVOID)&ppi,
420                                 sizeof(ppi)) == STATUS_SUCCESS &&
421          ppi.CurrentMhz != 0) || RegQueryValueEx(hKey, Value, NULL, &Type, (PBYTE)&ppi.CurrentMhz, &BufSize) == ERROR_SUCCESS)
422     {
423         if (ppi.CurrentMhz < 1000)
424         {
425             if (!LoadString(hApplet, IDS_MEGAHERTZ, szHz, _countof(szHz)))
426             {
427                 return;
428             }
429             StringCchPrintf(szBuf, _countof(szBuf), _T("%lu %s"), ppi.CurrentMhz, szHz);
430         }
431         else
432         {
433             double flt = ppi.CurrentMhz / 1000.0;
434             if (!LoadString(hApplet, IDS_GIGAHERTZ, szHz, _countof(szHz)))
435             {
436                 return;
437             }
438             MakeFloatValueString(&flt, szBuf, szHz);
439         }
440 
441         SetDlgItemText(hwnd, uID, szBuf);
442     }
443 }
444 
445 static VOID GetSystemInformation(HWND hwnd)
446 {
447     HKEY hKey;
448     TCHAR ProcKey[] = _T("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0");
449     MEMORYSTATUSEX MemStat;
450     TCHAR Buf[32];
451     WCHAR SMBiosName[96];
452     INT CurMachineLine = IDC_MACHINELINE1;
453 
454     /*
455      * Get hardware device name or motherboard name
456      * using information from raw SMBIOS data
457      */
458     if (GetSystemName(SMBiosName, _countof(SMBiosName)))
459     {
460         SetDlgItemText(hwnd, CurMachineLine, SMBiosName);
461         CurMachineLine++;
462     }
463     /*
464      * Get Processor information
465      * although undocumented, this information is being pulled
466      * directly out of the registry instead of via setupapi as it
467      * contains all the info we need, and should remain static
468      */
469     if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, ProcKey, 0, KEY_READ, &hKey) == ERROR_SUCCESS)
470     {
471         SetRegTextData(hwnd, hKey, _T("VendorIdentifier"), CurMachineLine);
472         CurMachineLine++;
473 
474         CurMachineLine += SetProcNameString(hwnd,
475                                             hKey,
476                                             _T("ProcessorNameString"),
477                                             CurMachineLine,
478                                             CurMachineLine + 1);
479 
480         SetProcSpeed(hwnd, hKey, _T("~MHz"), CurMachineLine);
481         CurMachineLine++;
482     }
483 
484     /* Get total physical RAM */
485     MemStat.dwLength = sizeof(MemStat);
486 
487     if (GlobalMemoryStatusEx(&MemStat))
488     {
489         TCHAR szStr[32];
490         double dTotalPhys;
491 
492         if (MemStat.ullTotalPhys > 1024 * 1024 * 1024)
493         {
494             UINT i = 0;
495             static const UINT uStrId[] = { IDS_GIGABYTE, IDS_TERABYTE, IDS_PETABYTE};
496 
497             // We're dealing with GBs or more
498             MemStat.ullTotalPhys /= 1024 * 1024;
499 
500             if (MemStat.ullTotalPhys > 1024 * 1024)
501             {
502                 // We're dealing with TBs or more
503                 MemStat.ullTotalPhys /= 1024;
504                 i++;
505 
506                 if (MemStat.ullTotalPhys > 1024 * 1024)
507                 {
508                     // We're dealing with PBs or more
509                     MemStat.ullTotalPhys /= 1024;
510                     i++;
511 
512                     dTotalPhys = (double)MemStat.ullTotalPhys / 1024;
513                 }
514                 else
515                 {
516                     dTotalPhys = (double)MemStat.ullTotalPhys / 1024;
517                 }
518             }
519             else
520             {
521                 dTotalPhys = (double)MemStat.ullTotalPhys / 1024;
522             }
523 
524             LoadString(hApplet, uStrId[i], szStr, sizeof(szStr) / sizeof(TCHAR));
525             MakeFloatValueString(&dTotalPhys, Buf, szStr);
526         }
527         else
528         {
529             // We're dealing with MBs, don't show any decimals
530             LoadString(hApplet, IDS_MEGABYTE, szStr, sizeof(szStr) / sizeof(TCHAR));
531             wsprintf(Buf, _T("%u %s"), (UINT)MemStat.ullTotalPhys / 1024 / 1024, szStr);
532         }
533 
534         SetDlgItemText(hwnd, CurMachineLine, Buf);
535     }
536 }
537 
538 static VOID GetSystemVersion(HWND hwnd)
539 {
540     HWND hRosVersion;
541     SIZE_T lenStr, lenVersion;
542     PCWSTR pwszVersion = L" " TEXT(KERNEL_VERSION_RC);
543     PWSTR pwszStr;
544 
545     lenVersion = wcslen(pwszVersion);
546     if (lenVersion == 0)
547     {
548         return;
549     }
550 
551     hRosVersion = GetDlgItem(hwnd, IDC_ROSVERSION);
552     if (!hRosVersion)
553     {
554         return;
555     }
556     lenStr = GetWindowTextLengthW(hRosVersion);
557     lenStr += lenVersion + 1;
558     pwszStr = HeapAlloc(GetProcessHeap(), 0, lenStr * sizeof(WCHAR));
559     if (!pwszStr)
560     {
561         return;
562     }
563     GetWindowText(hRosVersion, pwszStr, lenStr);
564 
565     StringCchCatW(pwszStr, lenStr, pwszVersion);
566     SetWindowText(hRosVersion, pwszStr);
567 
568     HeapFree(GetProcessHeap(), 0, pwszStr);
569 }
570 
571 ULONGLONG GetSecondsQPC(VOID)
572 {
573     LARGE_INTEGER Counter, Frequency;
574 
575     QueryPerformanceCounter(&Counter);
576     QueryPerformanceFrequency(&Frequency);
577 
578     return Counter.QuadPart / Frequency.QuadPart;
579 }
580 
581 ULONGLONG GetSeconds(VOID)
582 {
583     ULONGLONG (WINAPI * pGetTickCount64)(VOID);
584     ULONGLONG Ticks64;
585     HMODULE hModule = GetModuleHandleW(L"kernel32.dll");
586 
587     pGetTickCount64 = (PVOID)GetProcAddress(hModule, "GetTickCount64");
588     if (pGetTickCount64)
589     {
590         return pGetTickCount64() / 1000;
591     }
592 
593     hModule = LoadLibraryW(L"kernel32_vista.dll");
594 
595     if (!hModule)
596     {
597         return GetSecondsQPC();
598     }
599 
600     pGetTickCount64 = (PVOID)GetProcAddress(hModule, "GetTickCount64");
601 
602     if (pGetTickCount64)
603     {
604         Ticks64 = pGetTickCount64() / 1000;
605     }
606     else
607     {
608         Ticks64 = GetSecondsQPC();
609     }
610 
611     FreeLibrary(hModule);
612     return Ticks64;
613 }
614 
615 VOID GetSystemUptime(HWND hwnd)
616 {
617     HWND hRosUptime;
618     WCHAR szBuf[64], szStr[64];
619     ULONG cSeconds;
620 
621     hRosUptime = GetDlgItem(hwnd, IDC_UPTIME);
622     if (!hRosUptime)
623     {
624         return;
625     }
626     if (!LoadStringW(hApplet, IDS_UPTIME_FORMAT, szStr, _countof(szStr)))
627     {
628         return;
629     }
630     cSeconds = GetSeconds();
631     StringCchPrintfW(szBuf, _countof(szBuf), szStr,
632                      cSeconds / (60*60*24),
633                      (cSeconds / (60*60)) % 24,
634                      (cSeconds / 60) % 60,
635                      cSeconds % 60);
636 
637     SetWindowTextW(hRosUptime, szBuf);
638 }
639 
640 /* Property page dialog callback */
641 INT_PTR CALLBACK GeneralPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
642 {
643     UNREFERENCED_PARAMETER(lParam);
644     UNREFERENCED_PARAMETER(wParam);
645 
646     switch (uMsg)
647     {
648         case WM_INITDIALOG:
649             pImgInfo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IMGINFO));
650             if (pImgInfo == NULL)
651             {
652                 EndDialog(hwndDlg, 0);
653                 return FALSE;
654             }
655 
656             InitLogo(hwndDlg);
657             SetWindowLongPtr(GetDlgItem(hwndDlg, IDC_ROSIMG), GWLP_WNDPROC, (LONG_PTR)RosImageProc);
658             GetSystemInformation(hwndDlg);
659             GetSystemVersion(hwndDlg);
660             GetSystemUptime(hwndDlg);
661             break;
662 
663         case WM_DESTROY:
664             HeapFree(GetProcessHeap(), 0, pImgInfo);
665             break;
666 
667         case WM_COMMAND:
668             if (LOWORD(wParam) == IDC_LICENCE)
669             {
670                 DialogBox(hApplet, MAKEINTRESOURCE(IDD_LICENCE), hwndDlg, LicenceDlgProc);
671 
672                 return TRUE;
673             }
674             break;
675 
676         case WM_DRAWITEM:
677         {
678             LPDRAWITEMSTRUCT lpDrawItem = (LPDRAWITEMSTRUCT) lParam;
679 
680             if (lpDrawItem->CtlID == IDC_ROSIMG)
681             {
682                 HDC hdcMem;
683                 LONG left;
684 
685                 /* Position image in centre of dialog */
686                 left = (lpDrawItem->rcItem.right - pImgInfo->cxSource) / 2;
687 
688                 hdcMem = CreateCompatibleDC(lpDrawItem->hDC);
689                 if (hdcMem != NULL)
690                 {
691                     SelectObject(hdcMem, pImgInfo->hBitmap);
692                     BitBlt(lpDrawItem->hDC,
693                            left,
694                            lpDrawItem->rcItem.top,
695                            lpDrawItem->rcItem.right - lpDrawItem->rcItem.left,
696                            lpDrawItem->rcItem.bottom - lpDrawItem->rcItem.top,
697                            hdcMem,
698                            0,
699                            0,
700                            SRCCOPY);
701                     DeleteDC(hdcMem);
702                 }
703             }
704             return TRUE;
705         }
706 
707         case WM_NOTIFY:
708         {
709             NMHDR *nmhdr = (NMHDR *)lParam;
710 
711             if (nmhdr->idFrom == IDC_ROSHOMEPAGE_LINK && nmhdr->code == NM_CLICK)
712             {
713                 PNMLINK nml = (PNMLINK)nmhdr;
714 
715                 ShellExecuteW(hwndDlg, L"open", nml->item.szUrl, NULL, NULL, SW_SHOWNORMAL);
716             }
717             break;
718         }
719 
720     }
721 
722     return FALSE;
723 }
724