本文相關(guān)源碼:http://bbs.rosoo.net/forum.php?mod=viewthread&tid=1150 一、MSN拉簾式窗口制作 分三部分:1、窗口的顯示;2、窗口的停留;3、窗口的消失; 如果達(dá)到這樣郊果,系統(tǒng)中要有三個(gè)定時(shí)器,進(jìn)行分別控制。定義的定時(shí)器如下: #define ID_TIMER_POP_WINDOW 1 #define ID_TIMER_DISPALY_DELAY 2 #define ID_TIMER_CLOSE_WINDOW 3 從CWnd 繼承一個(gè)窗口,當(dāng)然也可以從CFrameWnd進(jìn)行派生,這不是主要問題,關(guān)鍵是看你是怎么處理WM_PAINT,WM_MOUSEMOVE,WM_TIMER的消息。一般情況,我從OnPaint()中進(jìn)行顯示圖片,在WM_TIMER中處理定時(shí)器消息,下面是處里定時(shí)器時(shí)用到的代碼: - CMsgWnd::CMsgWnd()
- {
- ...
- SetTimer(ID_TIEMR_POP_WINDOW,20,NULL);
- ...
- }
- void CMsgWnd::OnTimer(UINT nIDEvent)
- {
- static int nHeight=0;
- int cy=GetSystemMetrics(SM_CYSCREEN);
- int cx=GetSystemMetrics(SM_CXSCREEN);
- RECT rect;
- SystemParametersInfo(SPI_GETWORKAREA,0,&rect,0);
- int y=rect.bottom-rect.top;
- int x=rect.right-rect.left;
- x=x-WIN_WIDTH;
- switch(nIDEvent)
- {
- case ID_TIMER_POP_WINDOW:
- if(nHeight<=WIN_HEIGHT)
- {
- ++nHeight;
- MoveWindow(x,y-nHeight,WIN_WIDTH,WIN_HEIGHT);
- Invalidate(FALSE);
- }
- else
- {
- KillTimer(ID_TIMER_POP_WINDOW);
- SetTimer(ID_TIMER_DISPLAY_DELAY,5000,NULL);
- }
- break;
- case ID_TIMER_CLOSE_WINDOW:
- if(nHeight>=0)
- {
- nHeight--;
- MoveWindow(x,y-nHeight,WIN_WIDTH,nHeight);
- }
- else
- {
- KillTimer(ID_TIMER_CLOSE_WINDOW);
- SendMessage(WM_CLOSE);
- }
- break;
- case ID_TIMER_DISPLAY_DELAY:
- KillTimer(ID_TIMER_DISPLAY_DELAY);
- SetTimer(ID_TIMER_CLOSE_WINDOW,20,NULL);
- break;
- }
- CWnd::OnTimer(nIDEvent);
- }
根據(jù)你設(shè)的定時(shí)器的長短來控制窗口的顯示過程; - BOOL AnimateWindow(
- HWND hwnd,
- DWORD dwTime,
- DWORD dwFlags
- );
二、QQ淡出淡出顯示實(shí)現(xiàn) 其實(shí)用到一個(gè)API函數(shù):AnimateWindow,下面是這個(gè)函數(shù)的一些說明:
上面的函數(shù)前兩個(gè)參數(shù)一看就明白,不用說了,最后一個(gè)參數(shù)dwFlags設(shè)置動(dòng)畫窗口的樣式: 各種標(biāo)志說明: 標(biāo)志 說明 AW_SLIDE Uses slide animation. By default, roll animation is used. This flag is ignored when used with the AW_CENTER flag. AW_ACTIVATE Activates the window. Do not use this flag with AW_HIDE. AW_BLEND Uses a fade effect. This flag can be used only if hwnd is a top-level window. AW_HIDE Hides the window. By default, the window is shown. AW_CENTER Makes the window appear to collapse inward if the AW_HIDE flag is used or expand outward if the AW_HIDE flag is not used. AW_HOR_POSITIVE Animate the window from left to right. This flag can be used with roll or slide animation. It is ignored when used with the AW_CENTER flag. AW_HOR_NEGATIVE Animate the window from right to left. This flag can be used with roll or slide animation. It is ignored when used with the AW_CENTER flag. AW_VER_POSITIVE Animate the window from top to bottom. This flag can be used with roll or slide animation. It is ignored when used with the AW_CENTER flag. AW_VER_NEGATIVE Animate the window from bottom to top. This flag can be used with roll or slide animation. It is ignored when used with the AW_CENTER flag. 以上內(nèi)容是從MSDN中摘錄的,要淡入淡出的效果的話,用到AW_BELND。 三、控制窗口顯示的代碼 - CMainFrame::OnCreate(…)
- {
-
- AnimateWindow(GetSafeHwnd(),1000,AW_CENTER|AW_BLEND);
-
- }
四、關(guān)閉的代碼 - CMainFrame::OnClose(..)
- {
- AnimateWindow(GetSafeHwnd(),1000,AW_HIDE|AW_CENTER|AW_BLEND);
- }
其實(shí)AnimateWindow只是利用了windows本身的方法,如果您要更加有個(gè)性的窗口效果,那就得多做寫些代碼了,一分辛苦,一分收獲吧 五、結(jié)束語 其實(shí)就MSN的提示窗口來說,如果要從使用復(fù)雜一點(diǎn)的背景和效果,那么還有刷新屏幕的問題,應(yīng)做到無閃刷新.由于時(shí)間蒼促,不足之處必然有之,同時(shí)以上代碼也參考了一部分以前 VCKBASE 技術(shù)文檔,在此表示感謝! |