Shell_notifyicon & NOTIFYICONDATA

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We are trying to use Shell_NotifyIcon along with NOTIFYICONDATA structure. On Window 10, We are seeing that if we try to display the balloon notification area along with Title ICON , the ICON gets copied to temp folder everytime it is displayed. It is possible to avoid this ? We have certain use case due to which we do not want any file copy operation triggered while displaying the notifications.

Sample code we tried is as follows:

C++

void CTrayIconTestDlg::AddIconToSysTray()
{
	HICON	m_hIconInfo = NULL;//(HICON)::LoadImage(), MAKEINTRESOURCE(IDI_ICON_INFO), IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR | LR_LOADTRANSPARENT);

	// TODO: Add your control notification handler code here
	NOTIFYICONDATA NID;

	memset(&NID, 0, sizeof(NID));

	//on main function:
	NID.cbSize = sizeof(NID);
	NID.hIcon = this->m_hIcon;
	
	NID.hWnd = this->m_hWnd;
	NID.uID = WM_USER + 2;
	StrCpyW(NID.szTip, L"System Tray Icon: Hello World");
	//in a timer:
	
	NID.uFlags = NID.uFlags | NIF_ICON | NIF_TIP ;
	Shell_NotifyIcon(NIM_ADD, &NID);

	//CDialogEx::OnOK();
}

void CTrayIconTestDlg::DisplayNotification()
{
	// TODO: Add your control notification handler code here
	NOTIFYICONDATA NID;
	memset(&NID, 0, sizeof(NID));
	//on main function:
	NID.cbSize = sizeof(NID);
	NID.hIcon = this->m_hIcon;
	
	NID.hWnd = this->m_hWnd;
	NID.uID = WM_USER + 2;
	StrCpyW(NID.szTip, L"System Tray Icon: Hello World");
	//in a timer:
	
	NID.uFlags = NID.uFlags | NIF_ICON | NIF_INFO | NIF_TIP ;

	StrCpyW(NID.szInfoTitle, L"This is balloon title");
	StrCpyW(NID.szInfo, L"This is balloon Information detailed");

	NID.uTimeout = 5000;
	NID.dwInfoFlags = NID.dwInfoFlags | NIIF_INFO;
	
	//NID.dwInfoFlags = NID.dwInfoFlags | NIIF_USER;
	//NID.hBalloonIcon = this->m_hIcon;

	BOOL res = Shell_NotifyIcon(NIM_MODIFY, &NID);
	if( res == FALSE )
		MessageBoxA(NULL, "False", "", MB_OK);
}

What I have tried:

1) MSDN documentation
2) Tried same code on Windows 7, it does not copy the ICON to temp folder

Posted 3-Aug-16 1:58am

vikramlinux

Updated 23-Jan-23 0:59am

KarstenK

v4

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Comments

KarstenK 5-Aug-16 8:40am

I dont get it!!! Even if the icon is already there?
Sounds like a bug by Microsoft. You should contact them and throw away all hope of a fix. (Sorry for that)

2 solutions

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

**`Randor`** · Answer 1 · 2017-07-14T05:02:00

Hi,

It is not possible to avoid this on Windows 10. You may want to file a bug if you are using one of these products accepting bug reports:

[Microsoft Connect]

Be prepared for your bug to be closed as "By Design".

You can also use the Feedback Hub[^] to submit feedback about this feature.

Best Wishes,
-David Delaune

Member 11229828 · Answer 2 · 2023-01-23T00:59:00

#include <Windows.h>

int main()
{

  // Create a NOTIFYICONDATA structure
  NOTIFYICONDATA nid;
  ZeroMemory(&nid, sizeof(nid));
  nid.cbSize = sizeof(nid);
  nid.hWnd = NULL;
  nid.uID = 1;
  nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
  nid.uCallbackMessage = WM_USER;
  nid.uTimeout = 15;
  HANDLE hIcon = LoadImageW(NULL, L"icon.ico", IMAGE_ICON, 0, 0, LR_LOADFROMFILE);
  if (hIcon == NULL)
  {
    // handle error
  }
  else
  {
    nid.hIcon = LoadIcon((HINSTANCE)hIcon, IDI_APPLICATION);
  }

  lstrcpy(nid.szTip, L"My Notification");

  // Show the notification
  Shell_NotifyIcon(NIM_ADD, &nid);

  // Show a balloon notification
  nid.uFlags = NIF_INFO;
  lstrcpy(nid.szInfo, L"message!");
  lstrcpy(nid.szInfoTitle, L"Title");
  nid.dwInfoFlags = NIIF_ERROR;
  Shell_NotifyIcon(NIM_MODIFY, &nid);

  // Wait for the user to dismiss the notification
  Sleep(3000);

  // Remove the notification
  Shell_NotifyIcon(NIM_DELETE, &nid);

  return 0;
}

Shell_notifyicon & NOTIFYICONDATA

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