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）

#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

//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; else  dwFlags |= 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》。

//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》

地址分别为

1．http://blog.csdn.net/morewindows/article/details/8634451

2．http://blog.csdn.net/morewindows/article/details/8656061

本文配套程序下载地址为：http://download.csdn.net/detail/morewindows/5128647

转载请标明出处，原文地址：http://blog.csdn.net/morewindows/article/details/8656068

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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）

给我老师的人工智能教程打call！http://blog.csdn.net/jiangjunshow

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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）