How to minimize window in to system tray using WIN32

abhisekjana · #1 27-Mar-2006, 22:53

Hi,

I want help regarding, how to minimize window to system tray using Win32. Anyone please help me with some sample code.

mithunjacob · #2 03-Apr-2006, 10:29

Firstly you need the CFrameWnd* pointer to the frame (window) of your application. If you want to minimize it from a DialogBox, pass the pointer to the DialogBox's class while initializing it.

Once you've got the pointer, all you have to do is call the
ShowWindow(SW_SHOWMINIMIZED).

Therefore if you want to minimize from the frame itself, use:
this->ShowWindow(SW_SHOWMINIMIZED);
else use the pointer assigned to it.

If you want to minimize ANY window (assuming you have the handle) use:
ShowWindow(HWND hWnd, int ShowCmd)

wkbjerry · #3 04-Apr-2006, 21:10

Follow the steps below:

Step 1:
Define a user message that will be used to handle the events happening on your app's system tray icon. For example:

CPP / C++ / C Code:

#define WM_MYMESSAGE (WM_USER + 1)

Step 2:
When you want to show your app icon in the system tray, call the win API Shell_NotifyIcon() some way like this:

CPP / C++ / C Code:

NOTIFYICONDATA tnd;
tnd.cbSize = sizeof(NOTIFYICONDATA);
tnd.hWnd = this->m_hWnd;
tnd.uID = IDR_MAINFRAME;
tnd.uFlags = NIF_MESSAGE|NIF_ICON|NIF_TIP;
tnd.uCallbackMessage = WM_MYMESSAGE;
tnd.hIcon = LoadIcon(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDR_MAINFRAME));
strcpy(tnd.szTip,"MyApp");
Shell_NotifyIcon(NIM_ADD,&tnd);

Explanation about Shell_NotifyIcon() and NOTIFYICONDATA structure can be found in MSDN. By now, your application's icon has appeared in the system tray. You may also change your window's style if necessary, ie. hiding the window.

Step 3:
The WM_MESSAGE handler looks somewhat like this:

CPP / C++ / C Code:

　UINT uID; // The icon ID sending the message
　UINT uMouseMsg; //Mouse event
　POINT pt;
　uID=(UINT) wParam;
　uMouseMsg=(UINT) lParam;
　if(uMouseMsg==WM_RBUTTONDOWN)
　{
　　switch(uID)
　　{
　　case IDR_MAINFRAME: // Only handle the message sent by our app's tray icon
　　　GetCursorPos(&pt);// Get mouse's current position
　　　// AfxGetApp( )-> m_pMainWnd->ShowWindow(SW_SHOWNORMAL);
        // ...
　　　break;
　　　default:
　　}
　}
　return;

Step4:
When you want to delete your tray icon, call Shell_NotifyIcon() again with NIM_DELETE parameter:

CPP / C++ / C Code:

NOTIFYICONDATA tnid;
tnid.cbSize=sizeof(NOTIFYICONDATA);
tnid.hWnd=this->m_hWnd;
tnid.uID=IDR_MAINFRAME;//Make sure to the icon to be deleted is of your app
Shell_NotifyIcon(NIM_DELETE,&tnid);

That's it! I hope it will be of any help.

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How to minimize window in to system tray using WIN32

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