function SysDateToStr: string;
const
sDateFmt = 'dddd, d MMMM yyyy';
var
ST : TSystemTime;
begin
GetLocalTime(ST);
SetLength(Result, MAX_PATH);
GetDateFormat(LOCALE_USER_DEFAULT,0, @ST,pchar(sDateFmt), @Result[1], MAX_PATH);
end;
function SysTimeToStr:string;
const
sTimeFmt = 'HH:mm';
var
ST : TSystemTime;
begin
GetLocalTime(ST);
SetLength(Result,15);
GetTimeFormat(LOCALE_USER_DEFAULT,0,@st,sTimeFmt,@Result[1],15);
end;
procedure TimerProc(wnd:HWND;uMsg,idEvent,dwTime:UINT);stdcall;
begin
InvalidateRect(wnd,nil,true);
end;
procedure RecalcWndPos;
var
r:TRect;
X,Y:integer;
begin
X:=GetSystemMetrics(SM_CXDLGFRAME);
Y:=GetSystemMetrics(SM_CYDLGFRAME);
GetWindowRect(hTrayClock,r);
SetWindowPos(Window,0,r.Left+X,r.Top+Y, r.Right-r.Left,r.Bottom-r.Top-Y,0);
end;
function AppWndProc(wnd: HWND; uMsg:DWORD; wParam: WPARAM; lParam: LPARAM): Longint; stdcall;
var
DC : HDC;
ps :TPaintStruct;
pt :TPoint;
r :TRect;
Cmd : LongBool;
hm:HMenu;
begin
Result := 0;
case uMsg of
WM_SETTINGCHANGE: if wParam=SPI_SETWORKAREA then RecalcWndPos;
WM_PAINT:
begin
DC:=BeginPaint(wnd,ps);
GetClientRect(wnd,r);
SetBkMode(DC,TRANSPARENT);
SetTextColor(DC,RGB(255,255,0));
DrawText(DC,PChar(SysTimeToStr),-1,r,DT_SINGLELINE or DT_CENTER or DT_VCENTER);
EndPaint(wnd,ps);
exit;
end;
WM_RBUTTONDOWN:
begin
hm:=CreatePopupMenu;
pt.X:=LOWORD(lParam);
pt.Y:=HIWORD(lParam);
ClientToScreen(wnd,pt);
Insertmenu(hm,0,MF_BYPOSITION or MF_STRING,$101,'Exit');
Insertmenu(hm,0,MF_BYPOSITION or MF_SEPARATOR,0,nil);
Insertmenu(hm,0,MF_BYPOSITION or MF_STRING,$102,'Date/Time Settings');
Insertmenu(hm,0,MF_BYPOSITION or MF_SEPARATOR,0,nil);
Insertmenu(hm,0,MF_BYPOSITION or MF_STRING,dword(-1),PChar(SysDateToStr));
SetMenuDefaultItem(hm,0,1);
Cmd:=TrackPopupMenu(hM,TPM_LEFTALIGN or TPM_RIGHTBUTTON or
TPM_RETURNCMD,pt.X,pt.Y,0,Window,nil);
case longint(Cmd) of
$101: SendMessage(wnd,wm_destroy,0,0);
$102: ShellExecute(0,nil,'control.exe','date/time',nil,SW_SHOW);
end;
DestroyMenu(hm);
end;
WM_DESTROY:
begin
PostQuitMessage(wparam);
KillTimer(wnd,idTM);
end
end;
Result := DefWindowProc(wnd, uMsg, wParam, lParam);
end;
procedure InitInstance;
var
AppWinClass: TWndClass;
begin
with AppWinClass do
begin
style:= CS_VREDRAW or CS_HREDRAW;
lpfnWndProc:= @AppWndProc;
cbClsExtra:= 0;
cbWndExtra:= 0;
hInstance:= hInstance;
hIcon:= LoadIcon(0,IDI_APPLICATION);
hCursor:= LoadCursor(0,IDC_ARROW);
hbrBackground:= GetStockObject(BLACK_BRUSH);
lpszMenuName:= nil;
lpszClassName:= ClassName;
end;
if RegisterClass(AppWinClass)=0 then Halt(1)
end;
procedure InitApplication;
begin
hTrayClock:=FindWindowEx(FindWindowEx(FindWindow('Shell_TrayWnd',nil),0,'TrayNotifyWnd',nil),0,'TrayClockWClass',nil);
Window := CreateWindow(ClassName,nil, WS_POPUP or WS_DLGFRAME, 0,0,0,0, hTrayClock,0,HInstance,nil);
If Window=0 then halt(1);
RecalcWndPos;
end;
procedure InitWindow;
begin
idTM:=SetTimer(Window,1,1000,@TimerProc);
ShowWindow(Window, SW_SHOWNORMAL);
UpdateWindow(Window);
InvalidateRect(Window,nil,True)
end;
procedure MsgLoop;
var
Message:TMsg;
begin
while GetMessage(Message, 0, 0, 0) do
begin
TranslateMessage(Message);
DispatchMessage(Message);
end;
Halt(Message.wParam)
end;
begin
InitInstance;
InitApplication;
InitWindow;
MsgLoop
end.
но правильнее было бы внедриться в Explorer и сабклассировать TrayClockWClass
Автор: Krid
Статья Делаем свои часы в трее раздела Рабочий стол TaskBar может быть полезна для разработчиков на Delphi и FreePascal.
