Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口）

动画效果显示及隐藏窗口及大大美化程序界面，像QQ的登录窗口也是使用了动画效果显示及隐藏窗口。

本篇《Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口）》就来介绍下如何使用动画效果来显示隐藏窗口。为了方便代码复用，本人已经将其封装成一个窗口动画效果类，先来看看这个窗口动画效果类的实现吧。

头文件CAnimateWindow.h

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1. #pragma once 
2. //Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口） 
3. // http://blog.csdn.net/morewindows/article/details/8656068 
4. //By MoreWindows-(http://blog.csdn.net/MoreWindows) 
5. class CAnimateWindow 
6. { 
7. public: 
8.     CAnimateWindow(HWND hwnd = NULL); 
9.     void SetWindowHwnd(HWND hwnd); 
10.     HWND GetWindowHwnd(); 
11.     BOOL AnimateWindow(DWORD dwTime = 400,BOOL bShow = TRUE,BOOL bSlide = TRUE); 
12. private: 
13.     int GetRandomNumber(); 
14. private: 
15.     int   m_nAnimateType; 
16.     HWND  m_hwndWindow; 
17. }; 

#pragma once//Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口）// http://blog.csdn.net/morewindows/article/details/8656068//By MoreWindows-(http://blog.csdn.net/MoreWindows)class CAnimateWindow{public:CAnimateWindow(HWND hwnd = NULL);void SetWindowHwnd(HWND hwnd);HWND GetWindowHwnd();BOOL AnimateWindow(DWORD dwTime = 400, BOOL bShow = TRUE, BOOL bSlide = TRUE);private:int GetRandomNumber();private:int   m_nAnimateType;HWND  m_hwndWindow;};

CPP文件CAnimateWindow.cpp

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1. //Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口） 
2. // http://blog.csdn.net/morewindows/article/details/8656068 
3. //By MoreWindows-(http://blog.csdn.net/MoreWindows) 
4. #include <windows.h> 
5. #include <stdlib.h> 
6. #include <time.h> 
7. #include "CAnimateWindow.h" 
8.  
9. CAnimateWindow::CAnimateWindow(HWND hwnd) 
10. { 
11.     m_hwndWindow = hwnd; 
12.     m_nAnimateType = GetRandomNumber(); 
13. } 
14.  
15. void CAnimateWindow::SetWindowHwnd(HWND hwnd) 
16. { 
17.     m_hwndWindow = hwnd; 
18. } 
19.  
20. HWND CAnimateWindow::GetWindowHwnd() 
21. { 
22.     return m_hwndWindow; 
23. } 
24.  
25. BOOL CAnimateWindow::AnimateWindow(DWORD dwTime,BOOL bShow,BOOL bSlide) 
26. { 
27.     DWORD dwFlags; 
28.     dwFlags = bShow ? AW_ACTIVATE : AW_HIDE; 
29.     dwFlags |= bSlide ? AW_SLIDE : AW_BLEND; 
30.     if (m_nAnimateType == 0) 
31.         dwFlags |= AW_HOR_POSITIVE; 
32.     elseif (m_nAnimateType == 1) 
33.         dwFlags |= AW_VER_POSITIVE; 
34.     else 
35.         dwFlags |= AW_CENTER; 
36.  
37.     return ::AnimateWindow(m_hwndWindow, dwTime, dwFlags); 
38. } 
39.  
40. int CAnimateWindow::GetRandomNumber() 
41. { 
42.     srand((UINT)time(NULL)); 
43.     return rand() % 3; 
44. } 

//Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口）// http://blog.csdn.net/morewindows/article/details/8656068//By MoreWindows-(http://blog.csdn.net/MoreWindows)#include <windows.h>#include <stdlib.h>#include <time.h>#include "CAnimateWindow.h"CAnimateWindow::CAnimateWindow(HWND hwnd){m_hwndWindow = hwnd;m_nAnimateType = GetRandomNumber();}void CAnimateWindow::SetWindowHwnd(HWND hwnd){m_hwndWindow = hwnd;}HWND CAnimateWindow::GetWindowHwnd(){return m_hwndWindow;}BOOL CAnimateWindow::AnimateWindow(DWORD dwTime, BOOL bShow, BOOL bSlide){DWORD dwFlags;dwFlags = bShow ? AW_ACTIVATE : AW_HIDE;dwFlags |= bSlide ? AW_SLIDE : AW_BLEND;if (m_nAnimateType == 0)dwFlags |= AW_HOR_POSITIVE;else if (m_nAnimateType == 1)dwFlags |= AW_VER_POSITIVE;elsedwFlags |= AW_CENTER;return ::AnimateWindow(m_hwndWindow, dwTime, dwFlags);}int CAnimateWindow::GetRandomNumber(){srand((UINT)time(NULL));return rand() % 3;}

代码非常简单，主要使用的是AnimateWindow函数。这个函数的函数原型如下：

BOOLAnimateWindow(        

   HWNDhwnd,

   DWORDdwTime,

   DWORDdwFlags

);

这个函数也极其简单，三个参数，一个表示窗口句柄，一个表示动画持续时间（毫秒），最后一个参数表示动画效果。可以有以下参数：

AW_SLIDE

Uses slide animation. By default, roll animation is used. This flag is ignored when used with AW_CENTER.

AW_ACTIVATE

Activates the window. Do not use this value 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 AW_HIDE is used or expand outward if the AW_HIDE is not used. The various direction flags have no effect.

AW_HOR_POSITIVE

Animates the window from left to right. This flag can be used with roll or slide animation. It is ignored when used with AW_CENTER or AW_BLEND.

AW_HOR_NEGATIVE

Animates the window from right to left. This flag can be used with roll or slide animation. It is ignored when used with AW_CENTER or AW_BLEND.

AW_VER_POSITIVE

Animates the window from top to bottom. This flag can be used with roll or slide animation. It is ignored when used with AW_CENTER or AW_BLEND.

AW_VER_NEGATIVE

Animates the window from bottom to top. This flag can be used with roll or slide animation. It is ignored when used with AW_CENTER or AW_BLEND.

参数有点多但归纳一下就知道分为水平方向，垂直方向，由里向外或由外向里这几种。

下面给出这个动画显示窗口类的使用范例。

代码中的CenterWindow是用来将窗口居中显示的，这个函数中的GetSystemMetrics(SM_CXSCREEN);和GetSystemMetrics(SM_CYSCREEN);可以参考《VC++获取屏幕大小第一篇像素大小GetSystemMetrics》。

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1. //Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口） 
2. // http://blog.csdn.net/morewindows/article/details/8656068 
3. //By MoreWindows-(http://blog.csdn.net/MoreWindows) 
4. #include "stdafx.h" 
5. #include "resource.h" 
6. #include "CAnimateWindow.h" 
7.  
8. BOOL CALLBACK DlgProc(HWND hDlg,UINT message,WPARAM wParam,LPARAM lParam); 
9. //使窗口居中 
10. void CenterWindow(HWND hwnd); 
11.  
12. int APIENTRY WinMain(HINSTANCE hInstance, 
13.                     HINSTANCE hPrevInstance, 
14.                      LPSTR     lpCmdLine, 
15.                     int       nCmdShow) 
16. { 
17.     // TODO: Place code here. 
18.     DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, DlgProc); 
19.     return 0; 
20. } 
21.  
22.  
23. BOOL CALLBACK DlgProc(HWND hDlg,UINT message,WPARAM wParam,LPARAM lParam) 
24. { 
25.     static HBRUSH s_hBrushDlgBackGround; 
26.     static CAnimateWindow   s_aw; 
27.     switch (message) 
28.     { 
29.     case WM_INITDIALOG: 
30.         { 
31.             SetWindowText(hDlg,"窗口的动画显示和隐藏 - MoreWindows"); 
32.             // 加载背影图片 
33.             HINSTANCE hinstance = (HINSTANCE)GetWindowLong(hDlg, GWL_HINSTANCE); 
34.             HBITMAP hBitmap = LoadBitmap(hinstance, MAKEINTRESOURCE(IDB_BITMAP1)); 
35.             s_hBrushDlgBackGround = CreatePatternBrush(hBitmap); 
36.              
37.             CenterWindow(hDlg); 
38.  
39.             s_aw.SetWindowHwnd(hDlg); 
40.             s_aw.AnimateWindow(600); 
41.         } 
42.         return FALSE; 
43.          
44.          
45.     case WM_COMMAND: 
46.         switch (LOWORD(wParam)) 
47.         { 
48.         case IDOK: 
49.         case IDCANCEL: 
50.             s_aw.AnimateWindow(400, FALSE); 
51.             EndDialog(hDlg, FALSE); 
52.             return TRUE; 
53.         } 
54.         break; 
55.  
56.  
57.     case WM_CTLCOLORDLG: 
58.         return (BOOL)s_hBrushDlgBackGround; 
59.     } 
60.     return FALSE; 
61. } 
62. //使窗口居中 
63. void CenterWindow(HWND hwnd) 
64. { 
65.     RECT   rcDlg; 
66.     int    nDlgWidth, nDlgHight; 
67.     int    nScreenWidth, nScreenHight; 
68.      
69.     nScreenWidth = GetSystemMetrics(SM_CXSCREEN); 
70.     nScreenHight = GetSystemMetrics(SM_CYSCREEN); 
71.      
72.     GetWindowRect(hwnd, &rcDlg); 
73.     nDlgWidth = rcDlg.right - rcDlg.left; 
74.     nDlgHight = rcDlg.bottom - rcDlg.top; 
75.      
76.     MoveWindow(hwnd, (nScreenWidth  - nDlgWidth) / 2, (nScreenHight - nDlgHight) / 2, nDlgWidth, nDlgHight, FALSE); 
77. }  

//Windows界面编程第六篇 动画启动效果（动画效果显示及隐藏窗口）// http://blog.csdn.net/morewindows/article/details/8656068//By MoreWindows-(http://blog.csdn.net/MoreWindows) #include "stdafx.h"#include "resource.h"#include "CAnimateWindow.h"BOOL CALLBACK DlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);//使窗口居中void CenterWindow(HWND hwnd);int APIENTRY WinMain(HINSTANCE hInstance,                     HINSTANCE hPrevInstance,                     LPSTR     lpCmdLine,                     int       nCmdShow){ // TODO: Place code here.DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, DlgProc);return 0;}BOOL CALLBACK DlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam){static HBRUSH s_hBrushDlgBackGround;static CAnimateWindow   s_aw;switch (message){case WM_INITDIALOG:{SetWindowText(hDlg, "窗口的动画显示和隐藏 - MoreWindows");// 加载背影图片HINSTANCE hinstance = (HINSTANCE)GetWindowLong(hDlg, GWL_HINSTANCE);HBITMAP hBitmap = LoadBitmap(hinstance, MAKEINTRESOURCE(IDB_BITMAP1));s_hBrushDlgBackGround = CreatePatternBrush(hBitmap);CenterWindow(hDlg);s_aw.SetWindowHwnd(hDlg);s_aw.AnimateWindow(600);}return FALSE;case WM_COMMAND:switch (LOWORD(wParam)){case IDOK:case IDCANCEL:s_aw.AnimateWindow(400, FALSE);EndDialog(hDlg, FALSE);return TRUE;}break;case WM_CTLCOLORDLG:return (BOOL)s_hBrushDlgBackGround;}return FALSE;}//使窗口居中void CenterWindow(HWND hwnd){RECT   rcDlg;int    nDlgWidth, nDlgHight;int    nScreenWidth, nScreenHight;nScreenWidth = GetSystemMetrics(SM_CXSCREEN);nScreenHight = GetSystemMetrics(SM_CYSCREEN);GetWindowRect(hwnd, &rcDlg);nDlgWidth = rcDlg.right - rcDlg.left;nDlgHight = rcDlg.bottom - rcDlg.top;MoveWindow(hwnd, (nScreenWidth  - nDlgWidth) / 2, (nScreenHight - nDlgHight) / 2, nDlgWidth, nDlgHight, FALSE);} 

运行效果如下所示，当然动画效果不好截图，大家可以从http://download.csdn.net/detail/morewindows/5128647下载（带源码且免积分），然后自己运行看下效果。

欢迎继续参考下面两篇《Windows界面编程第七篇文件拖拽(文件拖放)》和

《Windows界面编程第八篇 listbox彩色显示隔行变色》