• API code

      1 /*---------------------------------------------------
  2    BLOKOUT2.C -- Mouse Button & Capture Demo Program
  3                  (c) Charles Petzold, 1998
  4   ---------------------------------------------------*/
  5  
  6 #include <windows.h>
  7 #include <windowsx.h>
  8 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
  9 
 10 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
 11                     PSTR szCmdLine, int iCmdShow)
 12 {
 13      static TCHAR szAppName[] = TEXT ("BlokOut2") ;
 14      HWND         hwnd ;
 15      MSG          msg ;
 16      WNDCLASS     wndclass ;
 17 
 18      wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
 19      wndclass.lpfnWndProc   = WndProc ;
 20      wndclass.cbClsExtra    = 0 ;
 21      wndclass.cbWndExtra    = 0 ;
 22      wndclass.hInstance     = hInstance ;
 23      wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
 24      wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
 25      wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
 26      wndclass.lpszMenuName  = NULL ;
 27      wndclass.lpszClassName = szAppName ;
 28      
 29      if (!RegisterClass (&wndclass))
 30      {
 31           MessageBox (NULL, TEXT ("Program requires Windows NT!"), 
 32                       szAppName, MB_ICONERROR) ;
 33           return 0 ;
 34      }
 35      
 36      hwnd = CreateWindow (szAppName, TEXT ("Mouse Button & Capture Demo"),
 37                           WS_OVERLAPPEDWINDOW,
 38                           CW_USEDEFAULT, CW_USEDEFAULT,
 39                           CW_USEDEFAULT, CW_USEDEFAULT,
 40                           NULL, NULL, hInstance, NULL) ;
 41      
 42      ShowWindow (hwnd, iCmdShow) ;
 43      UpdateWindow (hwnd) ;
 44      
 45      while (GetMessage (&msg, NULL, 0, 0))
 46      {
 47           TranslateMessage (&msg) ;
 48           DispatchMessage (&msg) ;
 49      }
 50      return msg.wParam ;
 51 }
 52 
 53 void DrawBoxOutline (HWND hwnd, POINT ptBeg, POINT ptEnd)
 54 {
 55      HDC hdc ;
 56      
 57      hdc = GetDC (hwnd) ;
 58      
 59      SetROP2 (hdc, R2_NOT) ;
 60      SelectObject (hdc, GetStockObject (NULL_BRUSH)) ;
 61      Rectangle (hdc, ptBeg.x, ptBeg.y, ptEnd.x, ptEnd.y) ;
 62      
 63      ReleaseDC (hwnd, hdc) ;
 64 }
 65 
 66 LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 67 {
 68      static BOOL  fBlocking, fValidBox ;
 69      static POINT ptBeg, ptEnd, ptBoxBeg, ptBoxEnd ;
 70      HDC          hdc ;
 71      PAINTSTRUCT  ps ;
 72      
 73      switch (message)
 74      {
 75      case WM_LBUTTONDOWN :
 76           ptBeg.x = ptEnd.x = GET_X_LPARAM (lParam) ;
 77           ptBeg.y = ptEnd.y = GET_Y_LPARAM (lParam) ;
 78           
 79           DrawBoxOutline (hwnd, ptBeg, ptEnd) ;
 80           
 81           SetCapture (hwnd) ;
 82           SetCursor (LoadCursor (NULL, IDC_CROSS)) ;
 83           
 84           fBlocking = TRUE ;
 85           return 0 ;
 86           
 87      case WM_MOUSEMOVE :
 88           if (fBlocking)
 89           {
 90                SetCursor (LoadCursor (NULL, IDC_CROSS)) ;
 91                
 92                DrawBoxOutline (hwnd, ptBeg, ptEnd) ;
 93                
 94                ptEnd.x = GET_X_LPARAM (lParam) ;
 95                ptEnd.y = GET_Y_LPARAM (lParam) ;
 96                
 97                DrawBoxOutline (hwnd, ptBeg, ptEnd) ;
 98           }
 99           return 0 ;
100           
101      case WM_LBUTTONUP :
102           if (fBlocking)
103           {
104                DrawBoxOutline (hwnd, ptBeg, ptEnd) ;
105                
106                ptBoxBeg   = ptBeg ;
107                ptBoxEnd.x = GET_X_LPARAM (lParam) ;
108                ptBoxEnd.y = GET_Y_LPARAM (lParam) ;
109                
110                ReleaseCapture () ;
111                SetCursor (LoadCursor (NULL, IDC_ARROW)) ;
112                
113                fBlocking = FALSE ;
114                fValidBox  = TRUE ;
115                
116                InvalidateRect (hwnd, NULL, TRUE) ;
117           }
118           return 0 ;
119           
120      case WM_CHAR :
121           if (fBlocking & (wParam == 'x1B'))     // i.e., Escape
122           {
123                DrawBoxOutline (hwnd, ptBeg, ptEnd) ;
124 
125                ReleaseCapture () ;
126                SetCursor (LoadCursor (NULL, IDC_ARROW)) ;
127                
128                fBlocking = FALSE ;
129           }
130           return 0 ;
131           
132      case WM_PAINT :
133           hdc = BeginPaint (hwnd, &ps) ;
134           
135           if (fValidBox)
136           {
137                SelectObject (hdc, GetStockObject (BLACK_BRUSH)) ;
138                Rectangle (hdc, ptBoxBeg.x, ptBoxBeg.y,
139                                ptBoxEnd.x, ptBoxEnd.y) ;
140           }
141           
142           if (fBlocking)
143           {
144                SetROP2 (hdc, R2_NOT) ;
145                SelectObject (hdc, GetStockObject (NULL_BRUSH)) ;
146                Rectangle (hdc, ptBeg.x, ptBeg.y, ptEnd.x, ptEnd.y) ;
147           }
148           
149           EndPaint (hwnd, &ps) ;
150           return 0 ;
151           
152      case WM_DESTROY :
153           PostQuitMessage (0) ;
154           return 0 ;
155      }
156      return DefWindowProc (hwnd, message, wParam, lParam) ;
157 }
     1 /*-----------------------------------------
 2    BEEPER1.C  -- Timer Demo Program No. 1
 3                  (c) Charles Petzold, 1998
 4   -----------------------------------------*/
 5  
 6 #include <windows.h>
 7 
 8 #define ID_TIMER    1
 9 
10 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
11 
12 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
13                     PSTR szCmdLine, int iCmdShow)
14 {
15      static TCHAR szAppName[] = TEXT ("Beeper1") ;
16      HWND         hwnd ;
17      MSG          msg ;
18      WNDCLASS     wndclass ;
19      
20      wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
21      wndclass.lpfnWndProc   = WndProc ;
22      wndclass.cbClsExtra    = 0 ;
23      wndclass.cbWndExtra    = 0 ;
24      wndclass.hInstance     = hInstance ;
25      wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
26      wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
27      wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
28      wndclass.lpszMenuName  = NULL ;
29      wndclass.lpszClassName = szAppName ;
30      
31      if (!RegisterClass (&wndclass))
32      {
33           MessageBox (NULL, TEXT ("Program requires Windows NT!"), 
34                       szAppName, MB_ICONERROR) ;
35           return 0 ;
36      }
37      
38      hwnd = CreateWindow (szAppName, TEXT ("Beeper1 Timer Demo"),
39                           WS_OVERLAPPEDWINDOW,
40                           CW_USEDEFAULT, CW_USEDEFAULT,
41                           CW_USEDEFAULT, CW_USEDEFAULT,
42                           NULL, NULL, hInstance, NULL) ;
43           
44      ShowWindow (hwnd, iCmdShow) ;
45      UpdateWindow (hwnd) ;
46           
47      while (GetMessage (&msg, NULL, 0, 0))
48      {
49           TranslateMessage (&msg) ;
50           DispatchMessage (&msg) ;
51      }
52      return msg.wParam ;
53 }
54 
55 LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
56 {
57      static BOOL fFlipFlop = FALSE ;
58      HBRUSH      hBrush ;
59      HDC         hdc ;
60      PAINTSTRUCT ps ;
61      RECT        rc ;
62      
63      switch (message)
64      {
65      case WM_CREATE:
66           SetTimer (hwnd, ID_TIMER, 1000, NULL) ;
67           return 0 ;
68 
69      case WM_TIMER :
70           MessageBeep (-1) ;          
71           fFlipFlop = !fFlipFlop ;
72           InvalidateRect (hwnd, NULL, FALSE) ;
73           return 0 ;
74           
75      case WM_PAINT :
76           hdc = BeginPaint (hwnd, &ps) ;
77           
78           GetClientRect (hwnd, &rc) ;
79           hBrush = CreateSolidBrush (fFlipFlop ? RGB(255,0,0) : RGB(0,0,255)) ;
80           FillRect (hdc, &rc, hBrush) ;
81 
82           EndPaint (hwnd, &ps) ;
83           DeleteObject (hBrush) ;
84           return 0 ;
85           
86      case WM_DESTROY :
87           KillTimer (hwnd, ID_TIMER) ;
88           PostQuitMessage (0) ;
89           return 0 ;
90      }
91      return DefWindowProc (hwnd, message, wParam, lParam) ;
92 }
     6 #include <windows.h>
 7 
 8 #define ID_TIMER    1
 9 
10 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
11 
12 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
13                     PSTR szCmdLine, int iCmdShow)
14 {
15      static TCHAR szAppName[] = TEXT ("Beeper1") ;
16      HWND         hwnd ;
17      MSG          msg ;
18      WNDCLASS     wndclass ;
19      
20      wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
21      wndclass.lpfnWndProc   = WndProc ;
22      wndclass.cbClsExtra    = 0 ;
23      wndclass.cbWndExtra    = 0 ;
24      wndclass.hInstance     = hInstance ;
25      wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
26      wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
27      wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
28      wndclass.lpszMenuName  = NULL ;
29      wndclass.lpszClassName = szAppName ;
30      
31      if (!RegisterClass (&wndclass))
32      {
33           MessageBox (NULL, TEXT ("Program requires Windows NT!"), 
34                       szAppName, MB_ICONERROR) ;
35           return 0 ;
36      }
37      
38      hwnd = CreateWindow (szAppName, TEXT ("Beeper1 Timer Demo"),
39                           WS_OVERLAPPEDWINDOW,
40                           CW_USEDEFAULT, CW_USEDEFAULT,
41                           CW_USEDEFAULT, CW_USEDEFAULT,
42                           NULL, NULL, hInstance, NULL) ;
43           
44      ShowWindow (hwnd, iCmdShow) ;
45      UpdateWindow (hwnd) ;
46           
47      while (GetMessage (&msg, NULL, 0, 0))
48      {
49           TranslateMessage (&msg) ;
50           DispatchMessage (&msg) ;
51      }
52      return msg.wParam ;
53 }
54 
55 LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
56 {
57      static BOOL fFlipFlop = FALSE ;
58      HBRUSH      hBrush ;
59      HDC         hdc ;
60      PAINTSTRUCT ps ;
61      RECT        rc ;
62      
63      switch (message)
64      {
65      case WM_CREATE:
66           SetTimer (hwnd, ID_TIMER, 1000, NULL) ;
67           return 0 ;
68 
69      case WM_TIMER :
70           MessageBeep (-1) ;          
71           fFlipFlop = !fFlipFlop ;
72           InvalidateRect (hwnd, NULL, FALSE) ;
73           return 0 ;
74           
75      case WM_PAINT :
76           hdc = BeginPaint (hwnd, &ps) ;
77           
78           GetClientRect (hwnd, &rc) ;
79           hBrush = CreateSolidBrush (fFlipFlop ? RGB(255,0,0) : RGB(0,0,255)) ;//red green  blue
80           FillRect (hdc, &rc, hBrush) ;
81 
82           EndPaint (hwnd, &ps) ;
83           DeleteObject (hBrush) ;
84           return 0 ;
85           
86      case WM_DESTROY :
87           KillTimer (hwnd, ID_TIMER) ;
88           PostQuitMessage (0) ;
89           return 0 ;
90      }
91      return DefWindowProc (hwnd, message, wParam, lParam) ;
92 }
      1 /*-----------------------------------------
  2    DIGCLOCK.c -- Digital Clock
  3                  (c) Charles Petzold, 1998
  4   -----------------------------------------*/
  5  
  6 #include <windows.h>
  7 
  8 #define ID_TIMER    1
  9 
 10 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
 11 
 12 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
 13                     PSTR szCmdLine, int iCmdShow)
 14 {
 15      static TCHAR szAppName[] = TEXT ("DigClock") ;
 16      HWND         hwnd ;
 17      MSG          msg ;
 18      WNDCLASS     wndclass ;
 19 
 20      wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
 21      wndclass.lpfnWndProc   = WndProc ;
 22      wndclass.cbClsExtra    = 0 ;
 23      wndclass.cbWndExtra    = 0 ;
 24      wndclass.hInstance     = hInstance ;
 25      wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
 26      wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
 27      wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
 28      wndclass.lpszMenuName  = NULL ;
 29      wndclass.lpszClassName = szAppName ;
 30 
 31      if (!RegisterClass (&wndclass))
 32      {
 33           MessageBox (NULL, TEXT ("Program requires Windows NT!"), 
 34                       szAppName, MB_ICONERROR) ;
 35           return 0 ;
 36      }
 37 
 38      hwnd = CreateWindow (szAppName, TEXT ("Digital Clock"),
 39                           WS_OVERLAPPEDWINDOW,
 40                           CW_USEDEFAULT, CW_USEDEFAULT,
 41                           CW_USEDEFAULT, CW_USEDEFAULT,
 42                           NULL, NULL, hInstance, NULL) ;
 43 
 44      ShowWindow (hwnd, iCmdShow) ;
 45      UpdateWindow (hwnd) ;
 46 
 47      while (GetMessage (&msg, NULL, 0, 0))
 48           {
 49           TranslateMessage (&msg) ;
 50           DispatchMessage (&msg) ;
 51           }
 52      return msg.wParam ;
 53      }
 54 
 55 void DisplayDigit (HDC hdc, int iNumber)
 56 {
 57      static BOOL  fSevenSegment [10][7] = {
 58                          1, 1, 1, 0, 1, 1, 1,     // 0
 59                          0, 0, 1, 0, 0, 1, 0,     // 1
 60                          1, 0, 1, 1, 1, 0, 1,     // 2
 61                          1, 0, 1, 1, 0, 1, 1,     // 3
 62                          0, 1, 1, 1, 0, 1, 0,     // 4
 63                          1, 1, 0, 1, 0, 1, 1,     // 5
 64                          1, 1, 0, 1, 1, 1, 1,     // 6
 65                          1, 0, 1, 0, 0, 1, 0,     // 7
 66                          1, 1, 1, 1, 1, 1, 1,     // 8
 67                          1, 1, 1, 1, 0, 1, 1 } ;  // 9
 68      static POINT ptSegment [7][6] = {
 69                           7,  6,  11,  2,  31,  2,  35,  6,  31, 10,  11, 10,
 70                           6,  7,  10, 11,  10, 31,   6, 35,   2, 31,   2, 11,
 71                          36,  7,  40, 11,  40, 31,  36, 35,  32, 31,  32, 11,
 72                           7, 36,  11, 32,  31, 32,  35, 36,  31, 40,  11, 40,
 73                           6, 37,  10, 41,  10, 61,   6, 65,   2, 61,   2, 41,
 74                          36, 37,  40, 41,  40, 61,  36, 65,  32, 61,  32, 41,
 75                           7, 66,  11, 62,  31, 62,  35, 66,  31, 70,  11, 70 } ;
 76      int          iSeg ;
 77      
 78      for (iSeg = 0 ; iSeg < 7 ; iSeg++)
 79           if (fSevenSegment [iNumber][iSeg])
 80                Polygon (hdc, ptSegment [iSeg], 6) ;
 81 }
 82 
 83 void DisplayTwoDigits (HDC hdc, int iNumber, BOOL fSuppress)
 84 {
 85      if (!fSuppress || (iNumber / 10 != 0))
 86           DisplayDigit (hdc, iNumber / 10) ;
 87 
 88      OffsetWindowOrgEx (hdc, -42, 0, NULL) ;
 89      DisplayDigit (hdc, iNumber % 10) ;
 90      OffsetWindowOrgEx (hdc, -42, 0, NULL) ;
 91 }
 92 
 93 void DisplayColon (HDC hdc)
 94 {
 95      POINT ptColon [2][4] = { 2,  21,  6,  17,  10, 21,  6, 25,
 96                               2,  51,  6,  47,  10, 51,  6, 55 } ;
 97 
 98      Polygon (hdc, ptColon [0], 4) ;
 99      Polygon (hdc, ptColon [1], 4) ;
100 
101      OffsetWindowOrgEx (hdc, -12, 0, NULL) ;
102 }
103 
104 void DisplayTime (HDC hdc, BOOL f24Hour, BOOL fSuppress)
105 {
106      SYSTEMTIME st ;
107 
108      GetLocalTime (&st) ;
109 
110      if (f24Hour)
111           DisplayTwoDigits (hdc, st.wHour, fSuppress) ;
112      else
113           DisplayTwoDigits (hdc, (st.wHour %= 12) ? st.wHour : 12, fSuppress) ;
114 
115      DisplayColon (hdc) ;
116      DisplayTwoDigits (hdc, st.wMinute, FALSE) ;
117      DisplayColon (hdc) ;
118      DisplayTwoDigits (hdc, st.wSecond, FALSE) ;
119 }
120 
121 LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
122 {
123      static BOOL   f24Hour, fSuppress ;
124      static HBRUSH hBrushRed ;
125      static int    cxClient, cyClient ;
126      HDC           hdc ;
127      PAINTSTRUCT   ps ;
128      TCHAR         szBuffer [2] ;
129 
130      switch (message)
131      {
132      case WM_CREATE:
133           hBrushRed = CreateSolidBrush (RGB (255, 0, 0)) ;
134           SetTimer (hwnd, ID_TIMER, 1000, NULL) ;
135 
136                                                   // fall through
137 
138      case WM_SETTINGCHANGE:
139           GetLocaleInfo (LOCALE_USER_DEFAULT, LOCALE_ITIME, szBuffer, 2) ;
140           f24Hour = (szBuffer[0] == '1') ;
141 
142           GetLocaleInfo (LOCALE_USER_DEFAULT, LOCALE_ITLZERO, szBuffer, 2) ;
143           fSuppress = (szBuffer[0] == '0') ;
144 
145           InvalidateRect (hwnd, NULL, TRUE) ;
146           return 0 ;
147 
148      case WM_SIZE:
149           cxClient = LOWORD (lParam) ;
150           cyClient = HIWORD (lParam) ;
151           return 0 ;
152 
153      case WM_TIMER:
154           InvalidateRect (hwnd, NULL, TRUE) ;
155           return 0 ;
156 
157      case WM_PAINT:
158           hdc = BeginPaint (hwnd, &ps) ;
159 
160           SetMapMode (hdc, MM_ISOTROPIC) ;
161           SetWindowExtEx (hdc, 276, 72, NULL) ;
162           SetViewportExtEx (hdc, cxClient, cyClient, NULL) ;
163 
164           SetWindowOrgEx (hdc, 138, 36, NULL) ;
165           SetViewportOrgEx (hdc, cxClient / 2, cyClient / 2, NULL) ;
166 
167           SelectObject (hdc, GetStockObject (NULL_PEN)) ;
168           SelectObject (hdc, hBrushRed) ;
169 
170           DisplayTime (hdc, f24Hour, fSuppress) ;
171 
172           EndPaint (hwnd, &ps) ;
173           return 0 ;
174 
175      case WM_DESTROY:
176           KillTimer (hwnd, ID_TIMER) ;
177           DeleteObject (hBrushRed) ;
178           PostQuitMessage (0) ;
179           return 0 ;
180      }
181      return DefWindowProc (hwnd, message, wParam, lParam) ;
182 }
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  • 原文地址：https://www.cnblogs.com/Zblogs/p/3263705.html
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