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System Tray Icons

, 1 Apr 2012 CPOL
An article on creating, manipulating and showing popup balloons on system tray icons.
// ChildFrm.cpp : implementation of the CChildFrame class
//

#include "stdafx.h"
#include "SysTray.h"

#include "ChildFrm.h"
#include "LeftView.h"
#include "SysTrayView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CChildFrame

IMPLEMENT_DYNCREATE(CChildFrame, CMDIChildWnd)

BEGIN_MESSAGE_MAP(CChildFrame, CMDIChildWnd)
	//{{AFX_MSG_MAP(CChildFrame)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code !
	//}}AFX_MSG_MAP
	ON_UPDATE_COMMAND_UI_RANGE(AFX_ID_VIEW_MINIMUM, AFX_ID_VIEW_MAXIMUM, OnUpdateViewStyles)
	ON_COMMAND_RANGE(AFX_ID_VIEW_MINIMUM, AFX_ID_VIEW_MAXIMUM, OnViewStyle)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CChildFrame construction/destruction

CChildFrame::CChildFrame()
{
	// TODO: add member initialization code here
	
}

CChildFrame::~CChildFrame()
{
}

BOOL CChildFrame::OnCreateClient( LPCREATESTRUCT /*lpcs*/,
	CCreateContext* pContext)
{
	// create splitter window
	if (!m_wndSplitter.CreateStatic(this, 1, 2))
		return FALSE;

	if (!m_wndSplitter.CreateView(0, 0, RUNTIME_CLASS(CLeftView), CSize(100, 100), pContext) ||
		!m_wndSplitter.CreateView(0, 1, RUNTIME_CLASS(CSysTrayView), CSize(100, 100), pContext))
	{
		m_wndSplitter.DestroyWindow();
		return FALSE;
	}

	return TRUE;
}

BOOL CChildFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	if( !CMDIChildWnd::PreCreateWindow(cs) )
		return FALSE;

	return TRUE;
}



/////////////////////////////////////////////////////////////////////////////
// CChildFrame diagnostics

#ifdef _DEBUG
void CChildFrame::AssertValid() const
{
	CMDIChildWnd::AssertValid();
}

void CChildFrame::Dump(CDumpContext& dc) const
{
	CMDIChildWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CChildFrame message handlers
CSysTrayView* CChildFrame::GetRightPane()
{
	CWnd* pWnd = m_wndSplitter.GetPane(0, 1);
	CSysTrayView* pView = DYNAMIC_DOWNCAST(CSysTrayView, pWnd);
	return pView;
}

void CChildFrame::OnUpdateViewStyles(CCmdUI* pCmdUI)
{
	// TODO: customize or extend this code to handle choices on the
	// View menu.

	CSysTrayView* pView = GetRightPane(); 

	// if the right-hand pane hasn't been created or isn't a view,
	// disable commands in our range

	if (pView == NULL)
		pCmdUI->Enable(FALSE);
	else
	{
		DWORD dwStyle = pView->GetStyle() & LVS_TYPEMASK;

		// if the command is ID_VIEW_LINEUP, only enable command
		// when we're in LVS_ICON or LVS_SMALLICON mode

		if (pCmdUI->m_nID == ID_VIEW_LINEUP)
		{
			if (dwStyle == LVS_ICON || dwStyle == LVS_SMALLICON)
				pCmdUI->Enable();
			else
				pCmdUI->Enable(FALSE);
		}
		else
		{
			// otherwise, use dots to reflect the style of the view
			pCmdUI->Enable();
			BOOL bChecked = FALSE;

			switch (pCmdUI->m_nID)
			{
			case ID_VIEW_DETAILS:
				bChecked = (dwStyle == LVS_REPORT);
				break;

			case ID_VIEW_SMALLICON:
				bChecked = (dwStyle == LVS_SMALLICON);
				break;

			case ID_VIEW_LARGEICON:
				bChecked = (dwStyle == LVS_ICON);
				break;

			case ID_VIEW_LIST:
				bChecked = (dwStyle == LVS_LIST);
				break;

			default:
				bChecked = FALSE;
				break;
			}

			pCmdUI->SetRadio(bChecked ? 1 : 0);
		}
	}
}


void CChildFrame::OnViewStyle(UINT nCommandID)
{
	// TODO: customize or extend this code to handle choices on the
	// View menu.
	CSysTrayView* pView = GetRightPane();

	// if the right-hand pane has been created and is a CSysTrayView,
	// process the menu commands...
	if (pView != NULL)
	{
		DWORD dwStyle = -1;

		switch (nCommandID)
		{
		case ID_VIEW_LINEUP:
			{
				// ask the list control to snap to grid
				CListCtrl& refListCtrl = pView->GetListCtrl();
				refListCtrl.Arrange(LVA_SNAPTOGRID);
			}
			break;

		// other commands change the style on the list control
		case ID_VIEW_DETAILS:
			dwStyle = LVS_REPORT;
			break;

		case ID_VIEW_SMALLICON:
			dwStyle = LVS_SMALLICON;
			break;

		case ID_VIEW_LARGEICON:
			dwStyle = LVS_ICON;
			break;

		case ID_VIEW_LIST:
			dwStyle = LVS_LIST;
			break;
		}

		// change the style; window will repaint automatically
		if (dwStyle != -1)
			pView->ModifyStyle(LVS_TYPEMASK, dwStyle);
	}
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Prateek Kaul
Web Developer
India India
No Biography provided

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