SDK源码分析 4

 1 #include <windows.h>
 2 
 3 LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);//回调函数
 4 
 5 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
 6 {
 7     WNDCLASS wndclass;
 8     MSG msg;
 9     HWND hWnd;
10     TCHAR Name_1[] = TEXT("MyClass"), Name_2[] = TEXT("MyWindows");
11 
12     //设置类风格
13     wndclass.cbClsExtra = 0;
14     wndclass.cbWndExtra = 0;
15     wndclass.hbrBackground =(HBRUSH)GetStockObject(WHITE_BRUSH);
16     wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
17     wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
18     wndclass.hInstance = hInstance;
19     wndclass.lpfnWndProc = WndProc;
20     wndclass.lpszClassName = Name_1;
21     wndclass.lpszMenuName = NULL;
22     wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;//增加 鼠标可双击 标识
23 
24     RegisterClass(&wndclass);//注册类
25 
26     //创建窗体
27     hWnd = CreateWindow(Name_1, Name_2,
28         WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
29 
30     //更新 显示窗口
31     UpdateWindow(hWnd);
32     ShowWindow(hWnd, iCmdShow);
33 
34     //消息循环
35     while (GetMessage(&msg, NULL, NULL, NULL))
36     {
37         TranslateMessage(&msg);//翻译键盘消息
38         DispatchMessage(&msg);//转发消息给WndProc
39     }
40     return msg.wParam;
41 }
42 
43 LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
44 {
45     PAINTSTRUCT ps;
46     HDC hdc;
47     RECT rect;
48 
49     switch (msg)
50     {
51     case WM_LBUTTONDOWN://单机消息 屏蔽 不然 它阻碍了 双击消息
52         //MessageBox(hWnd, TEXT("这是单击"), TEXT("test"), MB_OK);
53         return 0;
54     case WM_LBUTTONDBLCLK://双击消息
55         MessageBox(hWnd, TEXT("6666"), TEXT("test"), MB_OK);
56         return 0;
57     case WM_PAINT:
58         hdc = BeginPaint(hWnd, &ps);
59         GetClientRect(hWnd, &rect);
60         DrawText(hdc, TEXT("兄弟 请双击~~~~"), -1, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
61 
62         EndPaint(hWnd, &ps);
63         return 0;
64     case WM_DESTROY:
65         PostQuitMessage(0);
66         return 0;
67     }
68 
69 
70 
71     return DefWindowProc(hWnd, msg, wParam, lParam);
72 }

 1 #include <windows.h>
 2 #include <windowsx.h>//MSDN最新 获取 多屏幕 x,y坐标函数 用的 库
 3 
 4 LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
 5 
 6 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
 7 {
 8     WNDCLASS wndclass;
 9     MSG msg;
10     HWND hWnd;
11     TCHAR Name_1[] = TEXT("MyClass"), Name_2[] = TEXT("MyWindows");
12 
13     wndclass.cbClsExtra = 0;
14     wndclass.cbWndExtra = 0;
15     wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
16     wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
17     wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
18     wndclass.hInstance = hInstance;
19     wndclass.lpfnWndProc = WndProc;
20     wndclass.lpszClassName = Name_1;
21     wndclass.lpszMenuName = NULL;
22     wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;//增加双击
23 
24     RegisterClass(&wndclass);
25 
26     hWnd = CreateWindow(Name_1, Name_2,
27         WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
28 
29     UpdateWindow(hWnd);
30     ShowWindow(hWnd, iCmdShow);
31 
32     while (GetMessage(&msg, NULL, NULL, NULL))
33     {
34         TranslateMessage(&msg);
35         DispatchMessage(&msg);
36     }
37     return msg.wParam;
38 }
39 
40 LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
41 {
42     PAINTSTRUCT ps;
43     HDC hdc;
44     RECT rect;
45     //LPCTSTR 转到定义 就是 *TCHAR
46     LPCTSTR pszFormat = TEXT("关闭按钮被按下 \n当前的鼠标坐标为(屏幕坐标):x->%d y->%d\n转换后鼠标坐标为(客户坐标):x->%d y->%d");
47     POINT ptScreen, ptClient;//屏幕坐标和 客户坐标
48     TCHAR pszThe[800];//存放的BUFFER
49 
50     switch (msg)
51     {
52     case WM_LBUTTONDOWN:
53         //MessageBox(hWnd, TEXT("这是单击"), TEXT("test"), MB_OK);
54         return 0;
55     case WM_LBUTTONDBLCLK:
56         MessageBox(hWnd, TEXT("6666"), TEXT("test"), MB_OK);
57         return 0;
58     case WM_NCLBUTTONDOWN://非客户区 单机
59         if(wParam & HTCLOSE)//判断是否在 关闭按钮上
60         {
61             ptScreen.x = GET_X_LPARAM(lParam);//获取鼠标坐标x
62             ptScreen.y = GET_Y_LPARAM(lParam);//获取鼠标坐标y
63             ptClient.x = ptScreen.x;//临时 屏幕坐标
64             ptClient.y = ptScreen.y;//同上
65             ScreenToClient(hWnd, &ptClient);//转换坐标 保存到 ptClient
66             wsprintf(pszThe, pszFormat, ptScreen.x, ptScreen.y, ptClient.x, ptClient.y);//格式化字符串
67             MessageBox(hWnd, pszThe, TEXT("test"), MB_OK);
68         }
69         //MessageBox(hWnd, TEXT("6666"), TEXT("test"), MB_OK);
70         return DefWindowProc(hWnd,msg,wParam,lParam);//其他地方的消息依旧默认执行。
71     case WM_PAINT:
72         hdc = BeginPaint(hWnd, &ps);
73         GetClientRect(hWnd, &rect);
74         DrawText(hdc, TEXT("兄弟 请双击~~~~"), -1, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
75 
76         EndPaint(hWnd, &ps);
77         return 0;
78     case WM_DESTROY:
79         PostQuitMessage(0);
80         return 0;
81     }
82 
83 
84 
85     return DefWindowProc(hWnd, msg, wParam, lParam);
86 }

  1 #include <windows.h>
  2 #define DIVISIONS 5//宏定义 5
  3 
  4 LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
  5 
  6 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
  7 {
  8     WNDCLASS wndclass;
  9     MSG msg;
 10     HWND hWnd;
 11     TCHAR Name_1[] = TEXT("MyClass"), Name_2[] = TEXT("MyWindows");
 12 
 13     wndclass.cbClsExtra = 0;
 14     wndclass.cbWndExtra = 0;
 15     wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
 16     wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
 17     wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
 18     wndclass.hInstance = hInstance;
 19     wndclass.lpfnWndProc = WndProc;
 20     wndclass.lpszClassName = Name_1;
 21     wndclass.lpszMenuName = NULL;
 22     wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
 23 
 24     RegisterClass(&wndclass);
 25 
 26     hWnd = CreateWindow(Name_1, Name_2,
 27         WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
 28 
 29     UpdateWindow(hWnd);
 30     ShowWindow(hWnd, iCmdShow);
 31 
 32     while (GetMessage(&msg, NULL, NULL, NULL))
 33     {
 34         TranslateMessage(&msg);
 35         DispatchMessage(&msg);
 36     }
 37     return msg.wParam;
 38 }
 39 
 40 LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 41 {
 42     static BOOL fState[DIVISIONS][DIVISIONS];
 43     static int cxBlock, cyBlock;
 44     int x, y;
 45     PAINTSTRUCT ps;
 46     HDC hdc;
 47     RECT rect;
 48     switch (msg)
 49     {
 50     case WM_SIZE:
 51         //当 窗口尺寸改变的时候
 52         /*
 53         cxBlock=窗口宽度/ 5
 54         cyBlock=窗口高度/ 5
 55         比如 宽度为 100 高度为 100
 56         cxBlock=20  cyBlock=20
 57         
 58         */
 59         cxBlock = LOWORD(lParam) / DIVISIONS;
 60         cyBlock = HIWORD(lParam) / DIVISIONS;
 61         return 0;
 62     case WM_LBUTTONDOWN://鼠标左键单击
 63         /*
 64         x=x坐标/ 一个格子宽度
 65         y=y坐标/ 一个格子高度
 66         x=当前指向行的格子 y=当前指向列的格子
 67         */
 68         x = LOWORD(lParam) / cxBlock;
 69         y = HIWORD(lParam) / cyBlock;
 70         
 71         //如果 都小于 最大格子
 72         if (x < DIVISIONS && y < DIVISIONS)
 73         {
 74             //数组fState[当前行格子][当前列格子]
 75             //意义为 本来保存的 BOOL 每次都取反 得到相反的值
 76             fState[x][y] ^= 1;
 77             
 78             /*
 79             矩形的 左边=当前行格子*行格子宽度
 80             矩形的 顶边=当前列格子*列格子高度
 81             矩形的 右边=(当前行格子+1)*行格子宽度
 82             矩形的 底边=(当前列格子+1)*列格子高度
 83             */
 84             rect.left = x * cxBlock;
 85             rect.top = y * cyBlock;
 86             rect.right = (x + 1)*cxBlock;
 87             rect.bottom = (y + 1)*cyBlock;
 88             InvalidateRect(hWnd, &rect, FALSE);//重画矩形
 89         }
 90         else
 91         {
 92             MessageBeep(0);
 93         }
 94         return 0;
 95     case WM_PAINT:
 96         hdc = BeginPaint(hWnd, &ps);
 97         
 98         //循环 x=0;x<最大 ;x++
 99         
100         for (x = 0; x < DIVISIONS; x++)
101         {
102             //y=0;y<最大;y++
103             for (y = 0; y < DIVISIONS; y++)
104             {
105                 //构造矩形
106                 /*
107                 外部循环0次 里面循环5次 一共25次 25个方格
108                 内部循环 5次(外部循环第1次 x=0):
109                 构造1: 左:0*行格子宽度 顶:0*列格子高度 右:(0+1)*行格子宽度 底:(0+1)*列格子高度
110                 构造2: 左:0*行格子宽度 顶:1*列格子高度 右:(0+1)*行格子宽度 底:(1+1)*列格子高度
111                 构造3: 左:0*行格子宽度 顶:2*列格子高度 右:(0+1)*行格子宽度 底:(2+1)*列格子高度
112                 构造4: 左:0*行格子宽度 顶:3*列格子高度 右:(0+1)*行格子宽度 底:(3+1)*列格子高度
113                 构造5: 左:0*行格子宽度 顶:4*列格子高度 右:(0+1)*行格子宽度 底:(4+1)*列格子高度
114                 口
115                 口
116                 口
117                 口
118                 口
119                 ===============================================================================
120                 内部循环 5次(外部循环第2次 x=1):
121                 构造1: 左:1*行格子宽度 顶:0*列格子高度 右:(1+1)*行格子宽度 底:(0+1)*列格子高度
122                 构造2: 左:1*行格子宽度 顶:1*列格子高度 右:(1+1)*行格子宽度 底:(1+1)*列格子高度
123                 构造3: 左:1*行格子宽度 顶:2*列格子高度 右:(1+1)*行格子宽度 底:(2+1)*列格子高度
124                 构造4: 左:1*行格子宽度 顶:3*列格子高度 右:(1+1)*行格子宽度 底:(3+1)*列格子高度
125                 构造5: 左:1*行格子宽度 顶:4*列格子高度 右:(1+1)*行格子宽度 底:(4+1)*列格子高度
126                 口口
127                 口口
128                 口口
129                 口口
130                 口口
131                 */
132                 Rectangle(hdc, x*cxBlock, y*cyBlock, (x + 1)*cxBlock, (y + 1)*cyBlock);//这个处于某种原因 每次鼠标单击都要重绘 感觉效率不是很好
133                 if (fState[x][y])//如果是标记了的 那么就画出来
134                 {
135                     //从 0*行格子宽度,0*列格子高度 画到 (0+1)*行格子高度,(0+1)*列格子高度
136                     //从  左上角到 右下角
137                     MoveToEx(hdc, x*cxBlock, y*cyBlock, NULL);
138                     LineTo(hdc, (x + 1)*cxBlock, (y + 1)*cyBlock);
139                     
140                     //从 0*行格子宽度,(0+1)*列格子高度 画到 (0+1)*行格子高度,0*列格子高度
141                     //从 右上角到 左下角
142                     MoveToEx(hdc, x*cxBlock, (y + 1)*cyBlock, NULL);
143                     LineTo(hdc, (x + 1)*cxBlock, y*cyBlock);
144                 }
145             }
146         }
147         
148         EndPaint(hWnd, &ps);
149         return 0;
150     case WM_DESTROY:
151         PostQuitMessage(0);
152         return 0;
153     }
154 
155 
156 
157     return DefWindowProc(hWnd, msg, wParam, lParam);
158 }