制作 MSN、QQ 的消息提示窗口

作者：袁怀善

下载源代码

　　用过QQ和MSN聊天工具的人都知道，只要好友上线，就会在托盘的位置处显示一个提示窗口，
可以是拉帘式的，或者是淡入淡出的形式出现；想想何不为自己的程式也加一个漂亮的提示窗口呢:)
说做就做。

一、MSN拉帘式窗口制作

分三部分：1、窗口的显示；2、窗口的停留；3、窗口的消失；
如果达到这样郊果，系统中要有三个定时器，进行分别控制。定义的定时器如下：

#define ID_TIMER_POP_WINDOW 1#define ID_TIMER_DISPALY_DELAY 2 #define ID_TIMER_CLOSE_WINDOW 3 

　　从CWnd 继承一个窗口,当然也可以从CFrameWnd进行派生,这不是主要问题，关键是看你是怎么处理WM_PAINT,WM_MOUSEMOVE,WM_TIMER的消息。一般情况，我从OnPaint()中进行显示图片，在WM_TIMER中处理定时器消息，下面是处里定时器时用到的代码：

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);} 

The AnimateWindow function enables you to produce special effects when showing or hiding windows.There are two types of animation: roll animation and slide animation. 

BOOL AnimateWindow( HWND hwnd, // handle to the window to animate DWORD dwTime, // duration of animation DWORD dwFlags // animation type );

Specifies the type of animation. This parameter can be one or more of the following flags.

各种标志说明：

标志	说明
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 关于如何换肤、子类化的解决方案 如何对 BCGControlBarPro 进行换肤 评论 (0) All 登陆 还没注册？ 设为首页 | 加入收藏 | 关于我们 | 联系我们 | 广告服务 | 网站地图 | 友情链接 | 在线帮助 | 免责声明 Sitemap W3school 如果您觉得本站不错，别忘了告诉您的同学和同事哟 ^_^ 欢迎各网站转载我们的原创，转载时请注明出处。 All copyright is reserved by 软晨网（RuanChen.com）