vc++中怎么讲一个窗口 缩小

[luyinglply]

我想实现 点击某个按钮 实现窗口的缩小，然后在点击一下 又放大回原来的大小

这是正常的
然后缩小成
保证其中的控件都正常 ，怎么才能实现呐？？？
大侠们说的详细点把

[zzultc]

movewindow

[肆水東澤]

给你一段代码，就是一个简单的对话框的。

// DyOpenCloseDlg.cpp : implementation file
//

#include "stdafx.h"
#include "DyOpenClose.h"
#include "DyOpenCloseDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDyOpenCloseDlg dialog

CDyOpenCloseDlg::CDyOpenCloseDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDyOpenCloseDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDyOpenCloseDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDyOpenCloseDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDyOpenCloseDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDyOpenCloseDlg, CDialog)
	//{{AFX_MSG_MAP(CDyOpenCloseDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_TIMER()
	ON_WM_CLOSE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDyOpenCloseDlg message handlers

BOOL CDyOpenCloseDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	//获得窗口预设的大小
	CRect dlgRect;
	GetWindowRect(dlgRect);
	CRect desktopRect;
	//将窗口开始大小设为0
	GetDesktopWindow()->GetWindowRect(desktopRect);
	MoveWindow((desktopRect.Width() - dlgRect.Width())/2,
			   (desktopRect.Height() - dlgRect.Height())/2,
			   0,
			   0);
	//初始化变化大小
	m_nWidth=dlgRect.Width();
	m_nHeight=dlgRect.Height();
	m_nDx=2;
	m_nDy=2;
	m_nDx1=2;
	m_nDy1=2;
	//设定定时器1	
	SetTimer(1,10,NULL);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDyOpenCloseDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CDyOpenCloseDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDyOpenCloseDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CDyOpenCloseDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	CRect dlgRect;
	GetWindowRect(dlgRect);	//获得此时窗口的实际大小
	CRect desktopRect;
	GetDesktopWindow()->GetWindowRect(desktopRect);	//获得桌面窗口的大小
	//如果是窗口弹出过程，则逐渐增大窗口
	if(nIDEvent == 1)
	{
		MoveWindow(
				  (-m_nDx+desktopRect.Width() - dlgRect.Width()) / 2,
				  (-m_nDy+desktopRect.Height() - dlgRect.Height()) / 2, 
				  +m_nDx+dlgRect.Width(),
				  +m_nDy+dlgRect.Height() );	
		//不要超过窗口预设的宽度
		if(dlgRect.Width() >=m_nWidth) 
			m_nDx=0; 
		//不要超过窗口预设的高度
		if(dlgRect.Height() >=m_nHeight)
			m_nDy=0;
		//停止变化，关闭定时器1
		if((dlgRect.Width() >=m_nWidth) && (dlgRect.Height()>=m_nHeight))
			KillTimer(1); 
	}
	
	//停止变化，关闭定时器1
	if((dlgRect.Width() >=m_nWidth) && (dlgRect.Height() >=m_nHeight))
		KillTimer(1); 
	//如果是窗口关闭过程，则逐渐缩小窗口
	if(nIDEvent == 2)
	{
		MoveWindow((+m_nDx+desktopRect.Width() - dlgRect.Width()) / 2,
			(+m_nDy+desktopRect.Height() - dlgRect.Height()) / 2,
			-m_nDx1+dlgRect.Width(),
			-m_nDy1+dlgRect.Height() );	
		//当宽度等于零后宽度就不在变化
		if(dlgRect.Width() <= 0) 
			m_nDx1=0;
		//当高度等于零后高度就不在变化
		if(dlgRect.Height() <= 0 )
			m_nDy1=0; 
		//停止变化，关闭定时器2，并且关闭窗口
		if((dlgRect.Width() <= 0 ) && (dlgRect.Height() <=0))
		{
			KillTimer(2);
			CDialog::OnOK();//关闭对话框
		}		
	}
	CDialog::OnTimer(nIDEvent);
}

void CDyOpenCloseDlg::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
	//设定关闭时的定时器2
	SetTimer(2,10,NULL);	
//	CDialog::OnClose();
}

void CDyOpenCloseDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	//设定关闭时的定时器2
	SetTimer(2,10,NULL);	
//	CDialog::OnCancel();
}

void CDyOpenCloseDlg::OnOK() 
{
	// TODO: Add extra validation here
	//设定关闭时的定时器2
	SetTimer(2,10,NULL);	
//	CDialog::OnOK();
}

[Eleven]

同上，MoveWindow/SetWindowPos()

[logens]

如果可以的话，我宁愿用DeflateWnd

[向立天]

MoveWindow和SetWindowPos都可以

[微笑的鱼]

如果想让控件的相对位置保持不变的话，还要动态计算一下各控件位置。

[luyinglply]

就是不让看的 ，我实现了 在onsize（）中CFormView::ShowScrollBar(SB_BOTH, false);

[zyrr159487]

随心所遇的放大与缩小你的对话框了，控件也跟着比例缩小放大。
1. 在oninitdlg中 计算出当前对话框的大小与最大化后大小，注意要用float值，不然误差很大.
CRect rect;
::GetWindowRect(m_hWnd,rect);
ScreenToClient(rect);
m_nDlgWidth = rect.right - rect.left;
m_nDlgHeight = rect.bottom - rect.top;
//计算分辨率
m_nWidth = GetSystemMetrics(SM_CXSCREEN);
m_nHeight = GetSystemMetrics(SM_CYSCREEN);
//计算放大倍数
m_Multiple_width = float(m_nWidth)/float(m_nDlgWidth);
m_Mutiple_heith = float(m_nHeight)/float(m_nDlgHeight);
change_flag=TRUE;//这个是成员变量bool形，用来判断onsize执行时oninitdlg是否已经执行了
2. 给你对话框添加 onsize消息:
void EnviromentConfigDlg::OnSize(UINT nType, int cx, int cy)
{
CDialog::OnSize(nType, cx, cy);
if (change_flag)//如果确定oninitdlg已经调用完毕.
{
ReSize(IDC_STATIC1);
ReSize(IDC_TREE_ALARM);
ReSize(IDC_STATIC2);
ReSize(IDC_TREE_CAMERA);
ReSize(IDC_STATIC3);
ReSize(IDC_LIST_TYPE);
ReSize(IDOK);
ReSize(IDC_STATIC4);
ReSize(IDC_LIST_INFO);
//恢复放大倍数，并保存 (确保还原时候能够还原到原来的大小)
m_Multiple_width = float(1)/ m_Multiple_width ;
m_Mutiple_heith = float(1)/m_Mutiple_heith ;
}
}
3.刷新控件：根据比例计算控件缩放的大小，然后movewindow 到新矩形上
void EnviromentConfigDlg::ReSize(int nID)
{
CRect Rect;
GetDlgItem(nID)->GetWindowRect(Rect);
ScreenToClient(Rect);
//计算控件左上角点
CPoint OldTLPoint,TLPoint;
OldTLPoint = Rect.TopLeft();
TLPoint.x = long(OldTLPoint.x *m_Multiple_width);
TLPoint.y = long(OldTLPoint.y * m_Mutiple_heith );
//计算控件右下角点
CPoint OldBRPoint,BRPoint;
OldBRPoint = Rect.BottomRight();
BRPoint.x = long(OldBRPoint.x *m_Multiple_width);
BRPoint.y = long(OldBRPoint.y * m_Mutiple_heith );
//移动控件到新矩形
Rect.SetRect(TLPoint,BRPoint);
GetDlgItem(nID)->MoveWindow(Rect,TRUE);
}
这样，你就可以随心所遇的放大与缩小你的对话框了，控件也跟着比例缩小放大。

[luyinglply]

good 结贴了

[luyinglply]

我是基于formview的单文档 可以实现放缩吗 ？
CMainFrame *wndFrm = (CMainFrame *)AfxGetMainWnd();
CAU2View *m_au2 = (CAU2View *)wndFrm->GetActiveView();
m_au2->SetWindowPos(NULL,0,0,500,700,SWP_NOZORDER |SWP_NOMOVE );
我这么做了 但是没有缩小窗口 ，只是在窗口上 多了个矩形 分解线，没有实现缩小？？
大侠们 怎么回事呐？

[Eleven]

[Quote=引用 9 楼 luyinglply 的回复:]
我是基于formview的单文档 可以实现放缩吗 ？
CMainFrame *wndFrm = (CMainFrame *)AfxGetMainWnd();
CAU2View *m_au2 = (CAU2View *)wndFrm->GetActiveView();
m_au2->SetWindowPos(NULL,0,0,500,700,SWP_NOZORDER |SWP_NOMOVE )……
[/Quote]
改用框架大小
wndFrm->MoveWindow/SetWindowPos(...);

[vansbluge]

所有控件都动态移动的话... movewindow会写到死的。

[luyinglply]

CMainFrame *wndFrm = (CMainFrame *)AfxGetMainWnd();
CAU2View *m_au2 = (CAU2View *)wndFrm->GetActiveWindow();//--
m_au2->SetWindowPos(NULL,0,0,vw,vh,SWP_NOZORDER |SWP_NOMOVE);
实现了 换成GetActiveWindow();//就好了 但是 缩小后 窗口自动添加了滚动条 ，怎么才能取消它呐？

[向立天]

[Quote=引用 12 楼 luyinglply 的回复:]
CMainFrame *wndFrm = (CMainFrame *)AfxGetMainWnd();
CAU2View *m_au2 = (CAU2View *)wndFrm->GetActiveWindow();//--
m_au2->SetWindowPos(NULL,0,0,vw,vh,SWP_NOZORDER |SWP_NOMOVE);
实现了 换成GetActiveWin……
[/Quote]
为什么要取消滚动条
出现滚动条肯定是有显示不下的界面
如果隐藏了滚动条这么部分不就访问不到了么