According to everything I've seen, the following C++ program should be displaying a balloon tool tip from the tray icon when I left-click in the application window, yet it's not working. Can anyone tell me what I'm missing?
This is on XP with version 6.0 of Shell32.dll (verified with DllGetVersion).
Thanks!
#include "stdafx.h"
#include "shellapi.h"
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
{
MSG msg;
WNDCLASS wc;
memset(&wc, 0, sizeof(wc));
wc.lpfnWndProc = WndProc;
wc.hInstance = hInstance;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszClassName = "sysTrayTest";
RegisterClass(&wc);
HWND hWnd = CreateWindow("sysTrayTest", "",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, 500, 500,
NULL, NULL, hInstance, NULL);
if (hWnd)
{
ShowWindow(hWnd, nCmdShow);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return 0;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_DESTROY:
{
NOTIFYICONDATA nid;
memset(&nid, 0, sizeof(NOTIFYICONDATA));
nid.cbSize = sizeof(NOTIFYICONDATA);
nid.hWnd = hWnd;
nid.uID = 1;
Shell_NotifyIcon(NIM_DELETE, &nid);
PostQuitMessage(0);
}
break;
case WM_CREATE:
{
NOTIFYICONDATA nid;
memset(&nid, 0, sizeof(NOTIFYICONDATA));
nid.cbSize = sizeof(NOTIFYICONDATA);
nid.hWnd = hWnd;
nid.uID = 1;
nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
nid.uCallbackMessage = WM_USER + 200;
nid.hIcon = LoadIcon(NULL, IDI_INFORMATION);
lstrcpy (nid.szTip, "Test Tip");
Shell_NotifyIcon(NIM_ADD, &nid);
}
break;
case WM_LBUTTONDOWN:
{
NOTIFYICONDATA nid;
memset(&nid, 0, sizeof(NOTIFYICONDATA));
nid.cbSize = sizeof(NOTIFYICONDATA);
nid.hWnd = hWnd;
nid.uID = 1;
nid.uFlags = NIF_INFO;
lstrcpy(nid.szInfo, "Test balloon tip");
lstrcpy(nid.szInfoTitle, "Test Title");
nid.dwInfoFlags = NIIF_INFO;
nid.uTimeout = 15000;
Shell_NotifyIcon(NIM_MODIFY, &nid);
}
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}