自绘滚动条

标准的滚动条 是不能通过子类化来制定的， 如果想得到漂亮的滚动条，需要自己动手画。

要为CListCtrl 添加滚动条，大概思路如下：

(1) 使 CListCtrl 标准的滚动条不可用

(2) 手动定位 H 和 V 滚动条的位置( 不属于 ClistCtrl 的子控件 )

(3) 需要处理，

鼠标点击 左右箭头， 滚动一行

鼠标点击 滑块空白处， 滚动一页

鼠标拖拽滑块

下面是简单示例图： 滑块，左右箭头均是 宽26像素 高12像素



分析代码如下 SkinHorizontalScrollbar.cpp 


view plaincopy to clipboardprint?
1.// SkinHorizontalScrollbar.cpp : implementation file 
2.// 
3. 
4.#include "stdafx.h" 
5.#include "test_scroll.h" 
6.#include "SkinHorizontalScrollbar.h" 
7. 
8.#ifdef _DEBUG 
9.#define new DEBUG_NEW 
10.#undef THIS_FILE 
11.static char THIS_FILE[] = __FILE__; 
12.#endif 
13. 
14.///////////////////////////////////////////////////////////////////////////// 
15.// CSkinHorizontalScrollbar 
16. 
17.CSkinHorizontalScrollbar::CSkinHorizontalScrollbar() 
18.{ 
19. nThumbLeft = 25; 
20. dbThumbRemainder = 0.00f; 
21. 
22. bMouseDown = false; 
23. bMouseDownArrowLeft = false; 
24. bMouseDownArrowRight = false; 
25. bDragging = false; 
26. pList = NULL; 
27.} 
28. 
29.CSkinHorizontalScrollbar::~CSkinHorizontalScrollbar() 
30.{ 
31.} 
32. 
33. 
34.BEGIN_MESSAGE_MAP(CSkinHorizontalScrollbar, CStatic) 
35. //{{AFX_MSG_MAP(CSkinHorizontalScrollbar) 
36. ON_WM_PAINT() 
37. ON_WM_LBUTTONDOWN() 
38. ON_WM_LBUTTONUP() 
39. ON_WM_MOUSEMOVE() 
40. ON_WM_TIMER() 
41. //}}AFX_MSG_MAP 
42.END_MESSAGE_MAP() 
43. 
44.///////////////////////////////////////////////////////////////////////////// 
45.// CSkinHorizontalScrollbar message handlers 
46. 
47.void CSkinHorizontalScrollbar::OnPaint() 
48.{ 
49. CPaintDC dc(this); // device context for painting 
50. 
51. Draw(); 
52.} 
53. 
54.void CSkinHorizontalScrollbar::OnLButtonDown(UINT nFlags, CPoint point) 
55.{ 
56. SetCapture(); 
57. CRect clientRect; 
58. GetClientRect(&clientRect); 
59. 
60. int nWidth = clientRect.Width()-26; 
61. 
62. // 左箭头的区域 
63. CRect rectLeftArrow(0,0,26,20); 
64. // 右箭头区域 
65. CRect rectRightArrow(nWidth,0,nWidth+26,20); 
66. // 滑块区域 
67. CRect rectThumb(nThumbLeft,0,nThumbLeft+26,20); 
68. 
69. 
70. // 是否点重滑块 
71. if(rectThumb.PtInRect(point)) 
72. { 
73. bMouseDown = true; 
74. } 
75. 
76. // 是否点重右箭头 
77. if(rectRightArrow.PtInRect(point)) 
78. { 
79. bMouseDownArrowRight = true; 
80. SetTimer(2,250,NULL); 
81. } 
82. // 是否点重左箭头 
83. if(rectLeftArrow.PtInRect(point)) 
84. { 
85. bMouseDownArrowLeft = true; 
86. SetTimer(2,250,NULL); 
87. } 
88. 
89. CStatic::OnLButtonDown(nFlags, point); 
90.} 
91. 
92.void CSkinHorizontalScrollbar::OnLButtonUp(UINT nFlags, CPoint point) 
93.{ 
94. UpdateThumbPosition(); 
95. KillTimer(1); 
96. ReleaseCapture(); 
97. 
98. 
99. bool bInChannel = true; 
100. 
101. CRect clientRect; 
102. GetClientRect(&clientRect); 
103. 
104. int nWidth = clientRect.Width()-26; 
105. 
106. CRect rectLeftArrow(0,0,26,20); 
107. CRect rectThumb(nThumbLeft,0,nThumbLeft+26,20); 
108. 
109. if(rectLeftArrow.PtInRect(point)) 
110. { 
111. ScrollLeft(); 
112. bInChannel = false; 
113. } 
114. 
115. CRect rectRightArrow(nWidth,0,nWidth+26,20); 
116. 
117. 
118. if(rectRightArrow.PtInRect(point)) 
119. { 
120. ScrollRight(); 
121. bInChannel = false; 
122. } 
123. 
124. if(rectThumb.PtInRect(point)) 
125. { 
126. bInChannel = false; 
127. } 
128. 
129. if(bInChannel == true && !bMouseDown) 
130. { 
131. if(point.x > nThumbLeft) 
132. { 
133. PageRight(); 
134. } 
135. else 
136. { 
137. PageLeft(); 
138. } 
139. } 
140. 
141. 
142. //恢复所有变量 
143. bMouseDown = false; 
144. bDragging = false; 
145. bMouseDownArrowLeft = false; 
146. bMouseDownArrowRight = false; 
147. 
148. CStatic::OnLButtonUp(nFlags, point); 
149.} 
150. 
151.void CSkinHorizontalScrollbar::OnMouseMove(UINT nFlags, CPoint point) 
152.{ 
153. CRect clientRect; 
154. GetClientRect(&clientRect); 
155. 
156. if(bMouseDown) 
157. bDragging = true; 
158. 
159. if(bDragging) 
160. { 
161. //滑块宽度 26 , 此处假定鼠标点中的是滑块的中点, 计算滑块位置 
162. nThumbLeft = point.x-13; 
163. 
164. double nMax = pList->GetScrollLimit(SB_HORZ); 
165. int nPos = pList->GetScrollPos(SB_HORZ); 
166. 
167. // 计算可滚动的范围: clientRect.Width() - 左箭头宽 - 右箭头宽 - 滑块宽 
168. double nWidth = clientRect.Width()-75; 
169. double nVar = nMax; 
170. dbThumbInterval = nWidth/nVar; 
171. 
172. // nThumbLeft-25: 滑块偏离起点的距离 
173. // (nThumbLeft-25)/dbThumbInterval 需要滚动的次数 
174. int nScrollTimes = (int)((nThumbLeft-25)/dbThumbInterval)-nPos; 
175. 
176. CSize size; 
177. size.cx = nScrollTimes; 
178. size.cy = 0; 
179. 
180. // 强制列表滚动 
181. pList->Scroll(size); 
182. 
183. LimitThumbPosition(); 
184. 
185. Draw(); 
186. } 
187. 
188. CStatic::OnMouseMove(nFlags, point); 
189.} 
190. 
191.void CSkinHorizontalScrollbar::OnTimer(UINT nIDEvent) 
192.{ 
193. if(nIDEvent == 1) 
194. { 
195. if(bMouseDownArrowRight) 
196. { 
197. ScrollRight(); 
198. } 
199. 
200. if(bMouseDownArrowLeft) 
201. { 
202. ScrollLeft(); 
203. } 
204. } 
205. else if(nIDEvent == 2) 
206. { 
207. if(bMouseDownArrowRight) 
208. { 
209. KillTimer(2); 
210. SetTimer(1, 50, NULL); 
211. } 
212. 
213. if(bMouseDownArrowLeft) 
214. { 
215. KillTimer(2); 
216. SetTimer(1, 50, NULL); 
217. } 
218. } 
219. 
220. CStatic::OnTimer(nIDEvent); 
221.} 
222. 
223.void CSkinHorizontalScrollbar::ScrollLeft() 
224.{ 
225. pList->SendMessage(WM_HSCROLL, MAKELONG(SB_LINELEFT,0),NULL); 
226. UpdateThumbPosition(); 
227.} 
228. 
229.void CSkinHorizontalScrollbar::ScrollRight() 
230.{ 
231. pList->SendMessage(WM_HSCROLL, MAKELONG(SB_LINERIGHT,0),NULL); 
232. UpdateThumbPosition(); 
233.} 
234. 
235.void CSkinHorizontalScrollbar::UpdateThumbPosition() 
236.{ 
237. CRect clientRect; 
238. GetClientRect(&clientRect); 
239. 
240. double nPos = pList->GetScrollPos(SB_HORZ); 
241. double nMax = pList->GetScrollLimit(SB_HORZ); 
242. double nWidth = clientRect.Width()-75; 
243. double nVar = nMax; 
244. 
245. dbThumbInterval = nWidth/nVar; 
246. 
247. double nNewdbValue = dbThumbInterval * (nPos); 
248. int nNewValue = (int)nNewdbValue; 
249. //double nExtra = nNewdbValue - nNewValue; 
250. //dbThumbRemainder = nExtra; 
251. 
252. nThumbLeft = 25+nNewValue; 
253. 
254. TRACE("nPos: %0.3f, nMax : %0.3f, nWidth: %0.3f, dbThumbInterval: %0.3f\r\n", 
255. nPos , nMax, nWidth, dbThumbInterval); 
256. 
257. LimitThumbPosition(); 
258. 
259. Draw(); 
260.} 
261. 
262.void CSkinHorizontalScrollbar::PageRight() 
263.{ 
264. TRACE("CSkinHorizontalScrollbar::PageRight \r\n"); 
265. pList->SendMessage(WM_HSCROLL, MAKELONG(SB_PAGEDOWN,0),NULL); 
266. UpdateThumbPosition(); 
267.} 
268. 
269.void CSkinHorizontalScrollbar::PageLeft() 
270.{ 
271. TRACE("CSkinHorizontalScrollbar::PageLeft \r\n"); 
272. pList->SendMessage(WM_HSCROLL, MAKELONG(SB_PAGEUP,0),NULL); 
273. UpdateThumbPosition(); 
274.} 
275. 
276.void CSkinHorizontalScrollbar::Draw() 
277.{ 
278. CClientDC dc(this); 
279. CRect clientRect; 
280. GetClientRect(&clientRect); 
281. CMemDC memDC(&dc, &clientRect); 
282. 
283. // 填充背景 
284. memDC.FillSolidRect(&clientRect, RGB(76,85,118)); 
285. 
286. //画左箭头 
287. CDC bitmapDC; 
288. bitmapDC.CreateCompatibleDC(&dc); 
289. CBitmap bitmap; 
290. bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_LEFTARROW); 
291. CBitmap* pOldBitmap = bitmapDC.SelectObject(&bitmap); 
292. memDC.BitBlt(clientRect.left,clientRect.top,26,12,&bitmapDC,0,0,SRCCOPY); 
293. 
294. bitmapDC.SelectObject(pOldBitmap); 
295. bitmap.DeleteObject(); 
296. pOldBitmap = NULL; 
297. 
298. 
299. //画中间背景 
300. bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_SPAN); 
301. pOldBitmap = bitmapDC.SelectObject(&bitmap); 
302. int nWidth = clientRect.Width() - 26; 
303. memDC.StretchBlt(clientRect.left+26, clientRect.top, nWidth,12,&bitmapDC, 0,0, 1, 12, SRCCOPY); 
304. bitmapDC.SelectObject(pOldBitmap); 
305. bitmap.DeleteObject(); 
306. pOldBitmap = NULL; 
307. 
308. 
309. //画右箭头 
310. bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_RIGHTARROW); 
311. pOldBitmap = bitmapDC.SelectObject(&bitmap); 
312. memDC.BitBlt(nWidth,clientRect.top,26,12,&bitmapDC,0,0,SRCCOPY); 
313. bitmapDC.SelectObject(pOldBitmap); 
314. bitmap.DeleteObject(); 
315. pOldBitmap = NULL; 
316. 
317. 
318. 
319. //If there is nothing to scroll then don't 
320. //show the thumb control otherwise show it 
321. TRACE("pList->GetScrollLimit: %d\r\n", pList->GetScrollLimit(SB_HORZ) ); 
322. 
323. if(pList->GetScrollLimit(SB_HORZ) != 0) 
324. { 
325. bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_THUMB); 
326. 
327. pOldBitmap = bitmapDC.SelectObject(&bitmap); 
328. 
329. memDC.BitBlt( clientRect.left+nThumbLeft, clientRect.top, 26,12, 
330. &bitmapDC, 0, 0, SRCCOPY); 
331. 
332. bitmapDC.SelectObject(pOldBitmap); 
333. bitmap.DeleteObject(); 
334. pOldBitmap = NULL; 
335. } 
336. 
337. 
338.} 
339. 
340.void CSkinHorizontalScrollbar::LimitThumbPosition() 
341.{ 
342. CRect clientRect; 
343. GetClientRect(&clientRect); 
344. 
345. 
346. // 滑块的范围是 左右箭头之间的区域, 左右箭头宽 26 像素 
347. if(nThumbLeft+26 > (clientRect.Width()-26)) 
348. { 
349. nThumbLeft = clientRect.Width()-51; 
350. } 
351. 
352. if(nThumbLeft < (clientRect.left+25)) 
353. { 
354. nThumbLeft = clientRect.left+25; 
355. } 
356.} 
// SkinHorizontalScrollbar.cpp : implementation file // #include "stdafx.h" #include "test_scroll.h" #include "SkinHorizontalScrollbar.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CSkinHorizontalScrollbar CSkinHorizontalScrollbar::CSkinHorizontalScrollbar() { nThumbLeft = 25; dbThumbRemainder = 0.00f; bMouseDown = false; bMouseDownArrowLeft = false; bMouseDownArrowRight = false; bDragging = false; pList = NULL; } CSkinHorizontalScrollbar::~CSkinHorizontalScrollbar() { } BEGIN_MESSAGE_MAP(CSkinHorizontalScrollbar, CStatic) //{{AFX_MSG_MAP(CSkinHorizontalScrollbar) ON_WM_PAINT() ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() ON_WM_MOUSEMOVE() ON_WM_TIMER() //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CSkinHorizontalScrollbar message handlers void CSkinHorizontalScrollbar::OnPaint() { CPaintDC dc(this); // device context for painting Draw(); } void CSkinHorizontalScrollbar::OnLButtonDown(UINT nFlags, CPoint point) { SetCapture(); CRect clientRect; GetClientRect(&clientRect); int nWidth = clientRect.Width()-26; // 左箭头的区域 CRect rectLeftArrow(0,0,26,20); // 右箭头区域 CRect rectRightArrow(nWidth,0,nWidth+26,20); // 滑块区域 CRect rectThumb(nThumbLeft,0,nThumbLeft+26,20); // 是否点重滑块 if(rectThumb.PtInRect(point)) { bMouseDown = true; } // 是否点重右箭头 if(rectRightArrow.PtInRect(point)) { bMouseDownArrowRight = true; SetTimer(2,250,NULL); } // 是否点重左箭头 if(rectLeftArrow.PtInRect(point)) { bMouseDownArrowLeft = true; SetTimer(2,250,NULL); } CStatic::OnLButtonDown(nFlags, point); } void CSkinHorizontalScrollbar::OnLButtonUp(UINT nFlags, CPoint point) { UpdateThumbPosition(); KillTimer(1); ReleaseCapture(); bool bInChannel = true; CRect clientRect; GetClientRect(&clientRect); int nWidth = clientRect.Width()-26; CRect rectLeftArrow(0,0,26,20); CRect rectThumb(nThumbLeft,0,nThumbLeft+26,20); if(rectLeftArrow.PtInRect(point)) { ScrollLeft(); bInChannel = false; } CRect rectRightArrow(nWidth,0,nWidth+26,20); if(rectRightArrow.PtInRect(point)) { ScrollRight(); bInChannel = false; } if(rectThumb.PtInRect(point)) { bInChannel = false; } if(bInChannel == true && !bMouseDown) { if(point.x > nThumbLeft) { PageRight(); } else { PageLeft(); } } //恢复所有变量 bMouseDown = false; bDragging = false; bMouseDownArrowLeft = false; bMouseDownArrowRight = false; CStatic::OnLButtonUp(nFlags, point); } void CSkinHorizontalScrollbar::OnMouseMove(UINT nFlags, CPoint point) { CRect clientRect; GetClientRect(&clientRect); if(bMouseDown) bDragging = true; if(bDragging) { //滑块宽度 26 , 此处假定鼠标点中的是滑块的中点, 计算滑块位置 nThumbLeft = point.x-13; double nMax = pList->GetScrollLimit(SB_HORZ); int nPos = pList->GetScrollPos(SB_HORZ); // 计算可滚动的范围: clientRect.Width() - 左箭头宽 - 右箭头宽 - 滑块宽 double nWidth = clientRect.Width()-75; double nVar = nMax; dbThumbInterval = nWidth/nVar; // nThumbLeft-25: 滑块偏离起点的距离 // (nThumbLeft-25)/dbThumbInterval 需要滚动的次数 int nScrollTimes = (int)((nThumbLeft-25)/dbThumbInterval)-nPos; CSize size; size.cx = nScrollTimes; size.cy = 0; // 强制列表滚动 pList->Scroll(size); LimitThumbPosition(); Draw(); } CStatic::OnMouseMove(nFlags, point); } void CSkinHorizontalScrollbar::OnTimer(UINT nIDEvent) { if(nIDEvent == 1) { if(bMouseDownArrowRight) { ScrollRight(); } if(bMouseDownArrowLeft) { ScrollLeft(); } } else if(nIDEvent == 2) { if(bMouseDownArrowRight) { KillTimer(2); SetTimer(1, 50, NULL); } if(bMouseDownArrowLeft) { KillTimer(2); SetTimer(1, 50, NULL); } } CStatic::OnTimer(nIDEvent); } void CSkinHorizontalScrollbar::ScrollLeft() { pList->SendMessage(WM_HSCROLL, MAKELONG(SB_LINELEFT,0),NULL); UpdateThumbPosition(); } void CSkinHorizontalScrollbar::ScrollRight() { pList->SendMessage(WM_HSCROLL, MAKELONG(SB_LINERIGHT,0),NULL); UpdateThumbPosition(); } void CSkinHorizontalScrollbar::UpdateThumbPosition() { CRect clientRect; GetClientRect(&clientRect); double nPos = pList->GetScrollPos(SB_HORZ); double nMax = pList->GetScrollLimit(SB_HORZ); double nWidth = clientRect.Width()-75; double nVar = nMax; dbThumbInterval = nWidth/nVar; double nNewdbValue = dbThumbInterval * (nPos); int nNewValue = (int)nNewdbValue; //double nExtra = nNewdbValue - nNewValue; //dbThumbRemainder = nExtra; nThumbLeft = 25+nNewValue; TRACE("nPos: %0.3f, nMax : %0.3f, nWidth: %0.3f, dbThumbInterval: %0.3f\r\n", nPos , nMax, nWidth, dbThumbInterval); LimitThumbPosition(); Draw(); } void CSkinHorizontalScrollbar::PageRight() { TRACE("CSkinHorizontalScrollbar::PageRight \r\n"); pList->SendMessage(WM_HSCROLL, MAKELONG(SB_PAGEDOWN,0),NULL); UpdateThumbPosition(); } void CSkinHorizontalScrollbar::PageLeft() { TRACE("CSkinHorizontalScrollbar::PageLeft \r\n"); pList->SendMessage(WM_HSCROLL, MAKELONG(SB_PAGEUP,0),NULL); UpdateThumbPosition(); } void CSkinHorizontalScrollbar::Draw() { CClientDC dc(this); CRect clientRect; GetClientRect(&clientRect); CMemDC memDC(&dc, &clientRect); // 填充背景 memDC.FillSolidRect(&clientRect, RGB(76,85,118)); //画左箭头 CDC bitmapDC; bitmapDC.CreateCompatibleDC(&dc); CBitmap bitmap; bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_LEFTARROW); CBitmap* pOldBitmap = bitmapDC.SelectObject(&bitmap); memDC.BitBlt(clientRect.left,clientRect.top,26,12,&bitmapDC,0,0,SRCCOPY); bitmapDC.SelectObject(pOldBitmap); bitmap.DeleteObject(); pOldBitmap = NULL; //画中间背景 bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_SPAN); pOldBitmap = bitmapDC.SelectObject(&bitmap); int nWidth = clientRect.Width() - 26; memDC.StretchBlt(clientRect.left+26, clientRect.top, nWidth,12,&bitmapDC, 0,0, 1, 12, SRCCOPY); bitmapDC.SelectObject(pOldBitmap); bitmap.DeleteObject(); pOldBitmap = NULL; //画右箭头 bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_RIGHTARROW); pOldBitmap = bitmapDC.SelectObject(&bitmap); memDC.BitBlt(nWidth,clientRect.top,26,12,&bitmapDC,0,0,SRCCOPY); bitmapDC.SelectObject(pOldBitmap); bitmap.DeleteObject(); pOldBitmap = NULL; //If there is nothing to scroll then don't //show the thumb control otherwise show it TRACE("pList->GetScrollLimit: %d\r\n", pList->GetScrollLimit(SB_HORZ) ); if(pList->GetScrollLimit(SB_HORZ) != 0) { bitmap.LoadBitmap(IDB_HORIZONTAL_SCROLLBAR_THUMB); pOldBitmap = bitmapDC.SelectObject(&bitmap); memDC.BitBlt( clientRect.left+nThumbLeft, clientRect.top, 26,12, &bitmapDC, 0, 0, SRCCOPY); bitmapDC.SelectObject(pOldBitmap); bitmap.DeleteObject(); pOldBitmap = NULL; } } void CSkinHorizontalScrollbar::LimitThumbPosition() { CRect clientRect; GetClientRect(&clientRect); // 滑块的范围是 左右箭头之间的区域, 左右箭头宽 26 像素 if(nThumbLeft+26 > (clientRect.Width()-26)) { nThumbLeft = clientRect.Width()-51; } if(nThumbLeft < (clientRect.left+25)) { nThumbLeft = clientRect.left+25; } } 
SkinHorizontalScrollbar.h

view plaincopy to clipboardprint?
1.#if !defined(AFX_SKINHORIZONTALSCROLLBAR_H__77B6A7DF_1670_44D6_AA66_28424AF219DB__INCLUDED_)
2.#define AFX_SKINHORIZONTALSCROLLBAR_H__77B6A7DF_1670_44D6_AA66_28424AF219DB__INCLUDED_ 
3. 
4.#include "memdc.h" 
5. 
6. 
7.class CSkinHorizontalScrollbar : public CStatic 
8.{ 
9.public: 
10. CSkinHorizontalScrollbar(); 
11. void ScrollLeft(); 
12. void ScrollRight(); 
13. 
14. bool bMouseDownArrowRight, bMouseDownArrowLeft; 
15. bool bDragging; 
16. bool bMouseDown; 
17. 
18. int nThumbLeft; 
19. double dbThumbRemainder; 
20. double dbThumbInterval; 
21. 
22.// Attributes 
23.public: 
24. 
25.// Operations 
26.public: 
27. 
28. 
29.public: 
30. CListCtrl* pList; 
31. void LimitThumbPosition(); 
32. void Draw(); 
33. void PageLeft(); 
34. void PageRight(); 
35. void UpdateThumbPosition(); 
36. virtual ~CSkinHorizontalScrollbar(); 
37. 
38. 
39. 
40.protected: 
41. afx_msg void OnPaint(); 
42. afx_msg void OnLButtonDown(UINT nFlags, CPoint point); 
43. afx_msg void OnLButtonUp(UINT nFlags, CPoint point); 
44. afx_msg void OnMouseMove(UINT nFlags, CPoint point); 
45. afx_msg void OnTimer(UINT nIDEvent); 
46. 
47. DECLARE_MESSAGE_MAP() 
48.}; 
49. 
50.#endif 
#if !defined(AFX_SKINHORIZONTALSCROLLBAR_H__77B6A7DF_1670_44D6_AA66_28424AF219DB__INCLUDED_) #define AFX_SKINHORIZONTALSCROLLBAR_H__77B6A7DF_1670_44D6_AA66_28424AF219DB__INCLUDED_ #include "memdc.h" class CSkinHorizontalScrollbar : public CStatic { public: CSkinHorizontalScrollbar(); void ScrollLeft(); void ScrollRight(); bool bMouseDownArrowRight, bMouseDownArrowLeft; bool bDragging; bool bMouseDown; int nThumbLeft; double dbThumbRemainder; double dbThumbInterval; // Attributes public: // Operations public: public: CListCtrl* pList; void LimitThumbPosition(); void Draw(); void PageLeft(); void PageRight(); void UpdateThumbPosition(); virtual ~CSkinHorizontalScrollbar(); protected: afx_msg void OnPaint(); afx_msg void OnLButtonDown(UINT nFlags, CPoint point); afx_msg void OnLButtonUp(UINT nFlags, CPoint point); afx_msg void OnMouseMove(UINT nFlags, CPoint point); afx_msg void OnTimer(UINT nIDEvent); DECLARE_MESSAGE_MAP() }; #endif 
CMyListCtrl::Init 动态创建滚动条控件, 并定位滚动条的位置。

然后 在CDialog::OnInitDialog() 点调用 m_list.Init 即可完成。