19windows_19_OwnerDraw自制按钮DIYBUTTON

1. #include <windows.h>
2. #include <iostream>
4. CHAR szText[256] = {
   0 };
6. #define PrintLog(x) WriteConsole(g_hStdout, x, strlen(x), NULL, NULL)
8. HINSTANCE g_hInst = NULL; //窗口句柄
9. HANDLE g_hStdout = NULL; //控制台句柄
12. void OnCreate(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
13. {
14. CreateWindow("BUTTON", "DIY按钮",
15. WS_CHILD | WS_VISIBLE | BS_OWNERDRAW,
16. 50, 50, 200, 50, hWnd, (HMENU)1001, g_hInst, NULL);
19. CreateWindow("BUTTON", "普通按钮", WS_VISIBLE | WS_CHILD,
20. 400, 50, 200, 50, hWnd, NULL, g_hInst, NULL);
21. }
22. void OnDrawItem(HWND hWnd, WPARAM wParam, LPARAM lParam)
23. {
24. LPDRAWITEMSTRUCT pDis = (LPDRAWITEMSTRUCT)lParam;
25. if (ODT_BUTTON == pDis->CtlType)
26. {
27. if (pDis->itemState & ODS_SELECTED)
28. {
29. //使用画刷
30. //1、创建 2、交换 3、销毁
31. HBRUSH hBrush = CreateSolidBrush(RGB(200, 200, 255));
32. HBRUSH hOldBrush = (HBRUSH )SelectObject(pDis->hDC, hBrush);
34. RoundRect(pDis->hDC, pDis->rcItem.left,
35. pDis->rcItem.top, pDis->rcItem.right,
36. pDis->rcItem.bottom,15,15);
38. SelectObject(pDis->hDC, hOldBrush);
39. DeleteObject(hOldBrush);
40. }
41. else
42. {
43. HBRUSH hBrush = CreateSolidBrush(RGB(100, 100, 255));
44. HBRUSH hOldBrush = (HBRUSH)SelectObject(pDis->hDC, hBrush);
46. RoundRect(pDis->hDC, pDis->rcItem.left,
47. pDis->rcItem.top, pDis->rcItem.right,
48. pDis->rcItem.bottom, 15, 15);
50. SelectObject(pDis->hDC, hOldBrush);
51. DeleteObject(hOldBrush);
52. }
53. //绘制按扭
54. /*Rectangle(pDis->hDC, pDis->rcItem.left,
55. pDis->rcItem.top, pDis->rcItem.right,
56. pDis->rcItem.bottom);*/
57. //绘制圆角按扭
58. /*RoundRect(pDis->hDC, pDis->rcItem.left,
59. pDis->rcItem.top, pDis->rcItem.right,
60. pDis->rcItem.bottom,15,15);*/
62. GetWindowText(pDis->hwndItem, szText, 256);
63. //绘制按钮文字名称
64. int nOldMode = SetBkMode(pDis->hDC, TRANSPARENT);//去文字背景色
65. DrawText(pDis->hDC, szText, strlen(szText), &pDis->rcItem,
66. DT_CENTER | DT_VCENTER | DT_SINGLELINE);
68. SetBkMode(pDis->hDC, nOldMode);//在给设置回来
69. }
71. }
73. void OnMeasureitem(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
74. {
75. LPMEASUREITEMSTRUCT pMis = (LPMEASUREITEMSTRUCT)lParam;
76. pMis->itemHeight = 200;
77. }
78. LRESULT CALLBACK WndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
79. {
80. switch (nMsg)
81. {
82. case WM_CREATE:
83. OnCreate(hWnd,nMsg,wParam,lParam);
84. break;
85. case WM_DRAWITEM:
86. OnDrawItem(hWnd, wParam, lParam);
87. return 0;
88. case WM_MEASUREITEM: //使用这项，这项对于BUTTON没有影响，但对COMBOBOXLIST有影响
89. OnMeasureitem(hWnd,nMsg,wParam,lParam);
90. break;
91. case WM_DESTROY:
92. PostQuitMessage(0);
93. break;
94. }
95. return DefWindowProc(hWnd, nMsg, wParam, lParam);
96. }
98. BOOL RegisterWnd(LPSTR pszClassName)
99. {
100. WNDCLASSEX wce = {
     0 };
101. wce.cbSize = sizeof(wce);
102. wce.cbClsExtra = 0;
103. wce.cbWndExtra = 0;
104. wce.hbrBackground = HBRUSH(COLOR_BTNFACE + 1);
105. wce.hCursor = NULL;
106. wce.hIcon = NULL;
107. wce.hIconSm = NULL;
108. wce.hInstance = g_hInst;
109. wce.lpfnWndProc = WndProc;
110. wce.lpszClassName = pszClassName;
111. wce.lpszMenuName = NULL;
112. wce.style = CS_HREDRAW | CS_VREDRAW;
114. ATOM atom = RegisterClassEx(&wce);
115. if (atom == NULL)
116. {
117. return FALSE;
118. }
119. else
120. {
121. return TRUE;
122. }
123. }
125. HWND CreateWnd(LPSTR pszClassName)
126. {
127. HWND hWnd = CreateWindowEx(0, pszClassName, "灭天", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
128. CW_USEDEFAULT, NULL, NULL, g_hInst, 0);
130. return hWnd;
131. }
133. void ShowWnd(HWND hWnd)
134. {
135. ShowWindow(hWnd, SW_SHOW);
136. UpdateWindow(hWnd);
137. }
139. void Msg()
140. {
141. MSG msg = {
     0 };
142. while (GetMessage(&msg, NULL, 0, 0))
143. {
144. TranslateMessage(&msg);
145. DispatchMessage(&msg);
146. }
147. }
149. void ConsoleWnd()
150. {
151. AllocConsole();
152. g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
154. CHAR szText[] = "Debug start:\n";
155. WriteConsole(g_hStdout, szText, strlen(szText), NULL, NULL);
156. }
157. int WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd)
158. {
159. g_hInst = hInstance;
160. //ConsoleWnd();
161. RegisterWnd("oooo");
162. HWND hWnd = CreateWnd("oooo");
163. ShowWnd(hWnd);
164. Msg();
165. return 0;
166. }