delphi 如何通过托盘图标，获取进程PID

[bf505052826]

下面给出获取所有托盘图标的hint，但是要怎么样才可以通过这个获取到对应的进程PID呢，高手请帮忙 ，小弟感激不尽！

function TrayHWnd: HWND;
var
  h,hTmp: HWND;
begin
  h := FindWindow('Shell_TrayWnd', nil);
  h := FindWindowEx(h, 0, 'TrayNotifyWnd', nil);
  hTmp := FindWindowEx(h, 0, 'SysPager', nil);
  if hTmp <> 0 then h := hTmp;
  hTmp := FindWindowEx(h, 0, 'ToolbarWindow32', nil);
  if hTmp <> 0 then h := hTmp;
  Result := h;
end;
{提取列表}
procedure TForm1.Button1Click(Sender: TObject);
var
  h: HWND;
  count,size,num: Cardinal;
  pid, ph: Cardinal;
  p: Pointer;
  icoBtn: TTBButton;
  buf: array[0..255] of WideChar;
  i: Integer;
  item: TListItem;
begin
  h := TrayHWnd;
  count := SendMessage(h, TB_BUTTONCOUNT, 0, 0);
  size := SizeOf(TTBButton);

  GetWindowThreadProcessId(h, pid);
  ph := OpenProcess(PROCESS_VM_READ, False, pid);

  for i := 0 to count - 1 do
  begin
    SendMessage(h, TB_GETBUTTON, i, DWORD(p));
    ReadProcessMemory(ph, p, @icoBtn, size, num);
    ReadProcessMemory(ph, Pointer(icoBtn.iString), @buf, Length(buf)*SizeOf(buf[0]), num);
    item := ListView1.Items.Add;
    item.Caption := buf;
  end;
  CloseHandle(ph);

  Button2.Enabled := True;
  Button3.Enabled := True;
end;

[s11ss]

托盘区域这个TTBButton结构的dwData实际上是指向用于接收对应图标的通知消息的窗口句柄（即NOTIFYICONDATA结构的hWnd）的指针，根据此句柄就可以得到PID了！
还有个小问题，就是应当事先分配内存p。以下红色部分是新增加的内容。
procedure TForm1.Button1Click(Sender: TObject);
var
h: HWND;
count,size,num: Cardinal;
pid, ph: Cardinal;
p: Pointer;
icoBtn: TTBButton;
buf: array[0..255] of WideChar;
i: Integer;
item: TListItem;
dwData: DWORD;
begin
h := TrayHWnd;
count := SendMessage(h, TB_BUTTONCOUNT, 0, 0);
size := SizeOf(TTBButton);

GetWindowThreadProcessId(h, pid);
ph := OpenProcess(PROCESS_VM_READ {or PROCESS_VM_WRITE} or PROCESS_VM_OPERATION, False, pid);
p := VirtualAllocEx(ph, nil, size, MEM_COMMIT, PAGE_READWRITE);

for i := 0 to count - 1 do
begin
SendMessage(h, TB_GETBUTTON, i, DWORD(p));
ReadProcessMemory(ph, p, @icoBtn, size, num);
ReadProcessMemory(ph, Pointer(icoBtn.iString), @buf, Length(buf)*SizeOf(buf[0]), num);
ReadProcessMemory(ph, Pointer(icoBtn.dwData), @dwData, SizeOf(dwData), num);
GetWindowThreadProcessId(dwData, pid);
item := ListView1.Items.Add;
item.Caption := buf;
item.SubItems.Add(IntToStr(pid))
end;
VirtualFreeEx(ph, nil, 0, MEM_RELEASE);
CloseHandle(ph);

Button2.Enabled := True;
Button3.Enabled := True;
end;

[无条件为你]

只要有句柄就可以获取进程唯一的PID了。但反过来不行，因为一个PID可能对应多个窗口，多个句柄。