AnimateWindow

主要是使窗口具有动态效果，通常是动态显示公司的商标或者公司的宣传材料。

 

函数声明(winuser.h)

#if(WINVER >= 0x0500)

WINUSERAPI

BOOL

WINAPI

AnimateWindow(

   __in HWND hWnd,              // 窗口的句柄

   __in DWORD dwTime,        // 动态出现的时间,单位：milliseconds

   __in DWORD dwFlags);     // 显示效果的标志设置

#endif /* WINVER >= 0x0500*/

参数

dwFlags:

AW_SLIDEUses slide animation. By default, roll animation is used. This flag is ignored when used with the AW_CENTER flag. AW_ACTIVATEActivates the window. Do not use this flag with AW_HIDE. AW_BLENDUses a fade effect. This flag can be used only if hwnd is a top-level window. AW_HIDEHides the window. By default, the window is shown. AW_CENTERMakes 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_POSITIVEAnimate 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_NEGATIVEAnimate 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_POSITIVEAnimate 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_NEGATIVEAnimate 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.

返回值

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. The function will fail in the following situations:

• The window uses the window region.
• The window is already visible and you are trying to show the window.
• The window is already hidden and you are trying to hide the window

 

但是在使用的过程中通常会遇到编译出错的情况，如：AnimateWindow未声明等，原因是这个函数的声明中有#if(WINVER >= 0x0500)，解决方法有很多种：

1、在StdAfx.h靠前的地方重新定义

      加上#undef  WINVER 
            #define  WINVER   0x500

2、修改Winuser.h中的#if(WINVER >= 0x0500)，改为#if(WINVER >= 0x0400)

关于WINVER

Windows 95  and  Windows NT 4.0       WINVER=0x0400       
Windows 98  and  Windows NT 4.0       _WIN32_WINDOWS=0x0410   and   WINVER=0x0400     
Windows NT 4.0                                    _WIN32_WINNT=0x0400   and   WINVER=0x0400     
Windows   2000                                    _WIN32_WINNT=0x0500   and   WINVER=0x0500     
Windows   Me                                       _WIN32_WINDOWS=0x0490    
Windows   XP and  Windows .NET Server            _WIN32_WINNT=0x0501   and   WINVER=0x0501     
Internet   Explorer   3.0,  3.01,  3.02                 _WIN32_IE=0x0300    
Internet   Explorer   4.0                                   _WIN32_IE=0x0400    
Internet   Explorer   4.01                                 _WIN32_IE=0x0401    
Internet   Explorer   5.0,   5.0a,   5.0b               _WIN32_IE=0x0500    
Internet   Explorer   5.01,   5.5                         _WIN32_IE=0x0501    
Internet   Explorer   6.0                                   _WIN32_IE=0x0560   or   _WIN32_IE=0x0600

 

注意：

使用AnimateWindow来进行淡出时，此时窗口收不到鼠标消息了，如果你有需求：在窗口淡出即将消失时，如果鼠标移上去，窗口恢复正常显示，并且不消失。使用AnimateWindow是没办法实现的，只能使用其它方法。

不过还是有一点没搞明白，Windows XP的WINVER=0x0501，为什么使用AnimateWindow的时候还要重新定义WINVER