Changing Dialog like UNIX or LINUX App

When I worked on Unix systems, I thought that the Unix applications were so cool !!
Therefore, I decided to sumbit this article/code that will enable you to achieve some of the same features regarding the appearance of Windows dialogs that Unix and LINUX programmers/users have come to know and love. Enjoy!

First of all, create 'dialog based app' and insert the following code into your ...Dlg.h

class C...Dlg : public CDialog
{
// Construction
public:
	CRect m_rcOldRect;		// for original window position.

	void LargeWindow();		// Recovering original window feature 
	bool IsSmall;				 
	CDC m_dcSmallIcon;	   // CDC for smallIcon

....

// Implementation
protected:

	...
	
	afx_msg void OnSmallButton();
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg void OnNcLButtonDblClk(UINT nHitTest, CPoint point);
	afx_msg UINT OnNcHitTest(CPoint point);

	...
	
};
	
Next insert following code into your ...Dlg.cpp

////////////////////////////////////////////////////////////
// Declare Information for ICON.. Global variable!
int ICON_X = 100;		// Small Icon position.
int ICON_Y = 400;

int ICON_WIDTH = 32;	//Small Icon Width.
int ICON_HEIGHT = 32;
	
int COUNT = 20;			
int TIME = 10;


///////////////////////////////////////////////////////////////
// Code for BEGIN_MESSAGE_MAP
BEGIN_MESSAGE_MAP(CSmallDlg, CDialog)
	//{{AFX_MSG_MAP(CSmallDlg)
	...
	ON_BN_CLICKED(IDC_SMALL_BUTTON, OnSmallButton)
	ON_WM_NCLBUTTONDBLCLK()
	ON_WM_NCHITTEST()
	...
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()	


////////////////////////////////////////////////////////////////////////
// Code for OnPaint method..
void C...Dlg::OnPaint() 
{
	if (IsIconic())
	{
		...
	}
	else if ( IsSmall == true)
	{
		CWindowDC dc(this);
		dc.BitBlt(0, 0 ,32, 32, &m_dcSmallIcon, 0,0,SRCCOPY);

		CDialog::OnPaint();
	}
	
	....
	
}



/////////////////////////////////////////////////////////////////////////////////
// code for small button 	
void C...Dlg::OnSmallButton() 
{
	CWindowDC dc(NULL);
	
	dc.SelectStockObject(WHITE_PEN);

	// Declare variable
	CRect m_rcClient;

	GetWindowRect(&m_rcClient);
	GetWindowRect(&m_rcOldRect);

	dc.DPtoLP(&m_rcClient);
	dc.DPtoLP(&m_rcOldRect);
	
	int differ_x,differ_y;
	int differ_x1, differ_y1;

	dc.BitBlt(ICON_X, ICON_Y, ICON_WIDTH,ICON_HEIGHT, &dc, 0,0,SRCCOPY);	// Draw Icon

	differ_x = (ICON_X - m_rcClient.left)/COUNT;
	differ_y = (ICON_Y - m_rcClient.top)/COUNT;

	differ_x1 = (ICON_X+ICON_WIDTH - m_rcClient.right) /COUNT;
	differ_y1 = (ICON_Y+ICON_HEIGHT - m_rcClient.bottom) /COUNT;

	CRect rect;
	rect = m_rcClient;

	if( ICON_X > m_rcClient.right )
		rect.right = ICON_X;
	if( ICON_Y > m_rcClient.top)
		rect.top = ICON_Y;

	for( int i = 0 ; i < COUNT; i++)
	{
		dc.MoveTo(m_rcClient.left+differ_x*i, m_rcClient.top + differ_y*i);
		dc.LineTo(m_rcClient.right+differ_x1*i,m_rcClient.top + differ_y*i);
		dc.LineTo(m_rcClient.right+differ_x1*i , m_rcClient.bottom + differ_y1*i);
		dc.LineTo(m_rcClient.left+differ_x*i,m_rcClient.bottom + differ_y1*i);
		dc.LineTo(m_rcClient.left+differ_x*i, m_rcClient.top + differ_y*i);


//		dc.Rectangle(m_rcClient.left+differ_x*i, m_rcClient.top + differ_y*i, 
//			m_rcClient.right+differ_x1*i , m_rcClient.bottom + differ_y1*i);

		// If you want to draw line between icon and app, insert following comment code.
/*
		dc.MoveTo(m_rcClient.left+differ_x*i,m_rcClient.top + differ_y*i);
		dc.LineTo(ICON_X, ICON_Y);
		dc.MoveTo(m_rcClient.left , m_rcClient.bottom + differ_y1*i);
		dc.LineTo(ICON_WIDTH+ICON_X, ICON_Y);
		dc.MoveTo(m_rcClient.right + differ_x1*i, m_rcClient.top + differ_y*i);
		dc.LineTo(ICON_X+ICON_WIDTH, ICON_Y);
		dc.MoveTo(m_rcClient.right + differ_x1*i, m_rcClient.bottom + differ_y1*i);
		dc.LineTo(ICON_X+ICON_WIDTH, ICON_Y+ ICON_HEIGHT);
*/
		::Sleep(TIME);

	}	

	::InvalidateRect(NULL, &rect, FALSE);

	IsSmall = true;

	SetWindowPos(NULL,0,0,ICON_WIDTH, ICON_HEIGHT,SWP_NOMOVE|SWP_NOZORDER);

	MoveWindow(ICON_X, ICON_Y,ICON_WIDTH, ICON_HEIGHT,TRUE);

	OnPaint();

}	



////////////////////////////////////////////////////////////////////////
// Code for OnCreate method.
int C...Dlg::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CDialog::OnCreate(lpCreateStruct) == -1)
		return -1;

		
	// Create small bitmap icon..
	CClientDC dc (this);

	m_dcSmallIcon.CreateCompatibleDC(&dc);

	CBitmap bitmap;

	bitmap.LoadBitmap(IDB_BITMAP);
	m_dcSmallIcon.SelectObject(&bitmap);
	bitmap.DeleteObject();	
	return 0;

}



//////////////////////////////////////////////////////////////////////////////
// Code for OnNcLButtonDblClk and OnNcHitTest
void C...Dlg::OnNcLButtonDblClk(UINT nHitTest, CPoint point)
{
	if( IsSmall == true)
		LargeWindow();
	else
		CWnd::OnNcLButtonDblClk(nHitTest, point);
}

UINT C...Dlg::OnNcHitTest(CPoint point)
{
	UINT nHitTest = CWnd::OnNcHitTest(point);

	if( nHitTest == HTCLIENT)
		nHitTest = HTCAPTION;
	return nHitTest;
}


/////////////////////////////////////////////////////////////////////////////////
// Code for LargeWindow() function.

void C...Dlg::LargeWindow()
{
	CWindowDC dc(NULL);
	
	dc.SelectStockObject(WHITE_PEN);

	// Declare variable
	CRect m_rcClient;
	GetWindowRect(&m_rcClient);

	dc.DPtoLP(&m_rcClient);

	ICON_X = m_rcClient.left;
	ICON_Y = m_rcClient.top;

	m_rcClient = m_rcOldRect;

	int differ_x,differ_y;
	int differ_x1, differ_y1;

	dc.BitBlt(ICON_X, ICON_Y, ICON_WIDTH,ICON_HEIGHT, &dc, 0,0,SRCCOPY);

	differ_x = (ICON_X - m_rcClient.left)/COUNT;
	differ_y = (ICON_Y - m_rcClient.top)/COUNT;

	differ_x1 = (ICON_X+ICON_WIDTH - m_rcClient.right) /COUNT;
	differ_y1 = (ICON_Y+ICON_HEIGHT - m_rcClient.bottom) /COUNT;

	CRect rect;
	rect = m_rcClient;

	if( ICON_X > m_rcClient.right )
		rect.right = ICON_X;
	if( ICON_Y > m_rcClient.top)
		rect.top = ICON_Y;

	for( int i = COUNT ; i > 0 ; i--)
	{
		dc.MoveTo(m_rcClient.left+differ_x*i, m_rcClient.top + differ_y*i);
		dc.LineTo(m_rcClient.right+differ_x1*i,m_rcClient.top + differ_y*i);
		dc.LineTo(m_rcClient.right+differ_x1*i , m_rcClient.bottom + differ_y1*i);
		dc.LineTo(m_rcClient.left+differ_x*i,m_rcClient.bottom + differ_y1*i);
		dc.LineTo(m_rcClient.left+differ_x*i, m_rcClient.top + differ_y*i);

		::Sleep(5);

	}	

	::InvalidateRect(NULL, &rect, FALSE);

		
	MoveWindow(m_rcOldRect.left, m_rcOldRect.top,  m_rcOldRect.Width(),m_rcOldRect.Height());

	IsSmall = false;

	InvalidateRect(m_rcOldRect,FALSE);

}

Download demo project - 58 KB

Date Last Updated: May 17, 1999