func (w *Window) AddTrayIcon(ico Icon, tip string) {
if w.trayIconData != nil {
return
}
w.trayIconData = &w32.NOTIFYICONDATA{
/* Size */ uint32(unsafe.Sizeof(*w.trayIconData)),
/* Wnd */ w.handle,
/* ID */ 1,
/* Flags */ w32.NIF_MESSAGE | w32.NIF_ICON | w32.NIF_TIP | w32.NIF_SHOWTIP,
/* CallbackMessage */ WM_TRAYICON,
/* Icon */ w32.HICON(ico),
/* Tip */ [128]uint16{},
/* State */ 0,
/* StateMask */ 0,
/* Info */ [256]uint16{},
/* TimeoutOrVersion */ w32.NOTIFYICON_VERSION_4,
/* InfoTitle */ [64]uint16{},
/* InfoFlags */ 0,
/* Item */ w32.GUID{},
/* BalloonIcon */ 0,
}
tipbuf := syscall.StringToUTF16(tip)
copy(w.trayIconData.Tip[:], tipbuf)
w32.Shell_NotifyIcon(w32.NIM_ADD, w.trayIconData)
}
func wndProc(hwnd w32.HWND, msg uint32, wParam, lParam uintptr) uintptr {
wnd, err := findWndByHandle(hwnd)
if err != nil {
return w32.DefWindowProc(hwnd, msg, wParam, lParam)
}
switch msg {
case w32.WM_SIZE:
if wParam == w32.SIZE_MINIMIZED {
if wnd.OnMinimize != nil {
wnd.OnMinimize(wnd)
}
// We don't want to send OnSizeChanged notification then
return 0
} else if wParam == w32.SIZE_MAXIMIZED {
if wnd.OnMaximize != nil {
wnd.OnMaximize(wnd)
}
}
w := int(w32.LOWORD(uint32(lParam)))
h := int(w32.HIWORD(uint32(lParam)))
if wnd.OnSizeChanged != nil {
wnd.OnSizeChanged(wnd, Vector{w, h})
}
return 0
case w32.WM_KILLFOCUS:
if wnd.OnBlur != nil {
wnd.OnBlur(wnd)
}
return 0
case w32.WM_COMMAND:
notifCode := int(w32.HIWORD(uint32(wParam)))
controlId := uintptr(w32.LOWORD(uint32(wParam)))
controlHandle := w32.HWND(lParam)
if controlHandle == 0 {
if notifCode != 0 {
return 0
}
// Menu item click
mi, err := findMenuItemById(controlId)
if err == nil && mi.OnClick != nil {
mi.OnClick(mi)
}
} else {
// Control notification
dispatchControlEvent(controlHandle, notifCode)
}
return 0
case WM_TRAYICON:
switch w32.LOWORD(uint32(lParam)) {
case w32.WM_LBUTTONUP:
if wnd.OnTrayClick != nil {
wnd.OnTrayClick(wnd)
}
case w32.WM_RBUTTONUP:
if wnd.OnTrayRightClick != nil {
wnd.OnTrayRightClick(wnd)
}
}
return 0
case w32.WM_CLOSE:
if wnd.OnClose == nil || wnd.OnClose(wnd) {
wnd.Destroy()
}
return 0
case w32.WM_DESTROY:
if wnd.trayIconData != nil {
w32.Shell_NotifyIcon(w32.NIM_DELETE, wnd.trayIconData)
}
if wnd.OnDestroy != nil {
wnd.OnDestroy(wnd)
} else {
Exit()
}
return 0
default:
return w32.DefWindowProc(hwnd, msg, wParam, lParam)
}
}