4
所以我一直在基於兩個不同的源代碼工作在這個TrayIcon組件上。彈出菜單顯示在FMX的任務欄後面Delphi
一個用於Windows，一個用於Mac。
一切正常，除了當使用FMX TPopupMenu作爲托盤圖標菜單時，它會一直彈出到任務欄後面，有時在托盤圖標容器中右擊應用程序圖標時它甚至不會彈出知道包含所有隱藏圖標的小盒子？）
I found an article on the internet (read here)其中提示VCL TPopupMenu將是一種解決方法。
我的應用程序是跨平臺的，我使用FMX，所以我需要使用FMX組件。
現在對於這個問題：我該如何在任務欄前彈出一個FMX菜單？
編輯： 注1：我使用Delphi XE7在Windows 8.1 注2：在所附的代碼，有uses子句中的一部分，可以測試任何FMX.Menus或VCL進行註釋.Menus，然後 在構造函數Create中有一段代碼也必須取消註釋，以便與VCL.Menus一起使用。
這裏是我的托盤圖標代碼：
{The source is from Nix0N, [email protected], www.nixcode.ru, Ver 0.1.
}
unit QTray;
interface
uses
System.SysUtils, System.Classes, System.TypInfo,
System.UITypes,
Winapi.ShellAPI, Winapi.Windows,
Winapi.Messages, FMX.Platform.Win, VCL.graphics,
VCL.Controls,
FMX.Dialogs, FMX.Forms,
FMX.Objects, FMX.Types,
FMX.Graphics, FMX.Surfaces,
FMX.Menus //Comment this to use FMX Menus
// , VCL.Menus //comment this to use VCL Menus
;
type
TOnBalloonClick = procedure(Sender: TObject; ID: integer; ATagStr: string) of object;
TBalloonIconType = (None, Info, Warning, Error, User, BigWarning, BigError);
TCrossTray = class
private
fForm : TForm;
fHint : string;
fBalloonTitle : string;
fBalloonText : string;
fBalloonIconType : TBalloonIconType;
fTrayIcon : TNotifyIconData ;
fTrayMenu : TPopupMenu ;
fIndent : Integer ;
fOnClick : TNotifyEvent ;
fOnMouseDown,
fOnMouseUp,
fOnDblClick : TMouseEvent ;
fOnMouseEnter,
fOnMouseLeave : TNotifyEvent ;
// fOnMouseMove : TMouseMoveEvent ;
fOnBalloonShow,
fOnBalloonHide,
fOnBalloonTimeout : TNotifyEvent ;
fOnBalloonUserClick : TOnBalloonClick ;
fWinIcon : TIcon;
procedure ShowBallonHint;
protected
public
constructor Create; overload;
constructor Create(AForm: TForm); overload;//AForm isn't used in MacOS, but is left there for seamless inegration in your app
destructor Destroy;
procedure CreateMSWindows;
procedure Show;
procedure Hide;
procedure Balloon (ATitle, AMessage: string; AType: TBalloonIconType; AID: integer; ATagStr: string);
procedure BalloonNone (ATitle, AMessage: string; AID: integer; ATagStr: string);
procedure BalloonInfo (ATitle, AMessage: string; AID: integer; ATagStr: string);
procedure BalloonWarning (ATitle, AMessage: string; AID: integer; ATagStr: string);
procedure BalloonWarningBig (ATitle, AMessage: string; AID: integer; ATagStr: string);
procedure BalloonError (ATitle, AMessage: string; AID: integer; ATagStr: string);
procedure BalloonErrorBig (ATitle, AMessage: string; AID: integer; ATagStr: string);
procedure BalloonUser (ATitle, AMessage: string; AID: integer; ATagStr: string);
procedure LoadIconFromFile(APath: UTF8String);
procedure OnIconChange(Sender: TObject);
function GetIconRect: TRect;
published
property Hint : string read fHint write fHint ;
property BalloonText : string read fBalloonText write fBalloonText ;
property BalloonTitle : string read fBalloonTitle write fBalloonTitle ;
property IconBalloonType : TBalloonIconType read fBalloonIconType write fBalloonIconType ;
property Indent : Integer read fIndent write fIndent ;
property PopUpMenu : TPopupMenu read fTrayMenu write fTrayMenu ;
property OnClick : TNotifyEvent read fOnClick write fOnClick ;
property OnMouseDown : TMouseEvent read fOnMouseDown write fOnMouseDown ;
property OnMouseUp : TMouseEvent read fOnMouseUp write fOnMouseUp ;
property OnDblClick : TMouseEvent read fOnDblClick write fOnDblClick ;
property OnMouseEnter : TNotifyEvent read fOnMouseEnter write fOnMouseEnter ;
property OnMouseLeave : TNotifyEvent read fOnMouseLeave write fOnMouseLeave ;
property OnBalloonShow : TNotifyEvent read fOnBalloonShow write fOnBalloonShow ;
property OnBalloonHide : TNotifyEvent read fOnBalloonHide write fOnBalloonHide ;
property OnBalloonTimeout : TNotifyEvent read fOnBalloonTimeout write fOnBalloonTimeout ;
property OnBalloonUserClick : TOnBalloonClick read fOnBalloonUserClick write fOnBalloonUserClick ;
// property OnMouseMove : TMouseMoveEvent read fOnMouseMove write fOnMouseMove ;
end;
var
gOldWndProc: LONG_PTR;
gHWND: TWinWindowHandle;
gPopUpMenu: TPopupMenu;
gFirstRun: Boolean = True;
gIndent: Integer;
gOnClick : TNotifyEvent ;
gOnMouseDown,
gOnMouseUp,
gOnDblClick : TMouseEvent ;
gOnMouseEnter,
gOnMouseLeave : TNotifyEvent;
// gOnMouseMove : TMouseMoveEvent ;
gOnBalloonShow,
gOnBalloonHide,
gOnBalloonTimeout : TNotifyEvent ;
gOnBalloonUserClick : TOnBalloonClick ;
gBalloonID: integer;
gBalloonTagStr: string;
gXTrayIcon: TCrossTray;
function MyWndProc(HWND: HWND; Msg: UINT; WParam: WParam; LParam: LParam): LRESULT; stdcall;
const WM_TRAYICON = WM_USER + 1;
implementation
constructor TCrossTray.Create;
begin
end;
constructor TCrossTray.Create(AForm: TForm);
begin
inherited Create;
fForm := AForm; CreateMSWindows;
//uncomment the following block for a simple hello world menu using VCL.Menu
{ fTrayMenu := TPopupMenu.Create(nil);
fTrayMenu.Items.Add(TMenuItem.Create(nil));
fTrayMenu.Items.Add(TMenuItem.Create(nil));
fTrayMenu.Items.Items[0].Caption := 'hello';
fTrayMenu.Items.Items[1].Caption := 'world!';
}
//To use FMX Menus, just assign one from your main form
end;
procedure TCrossTray.CreateMSWindows;
begin
fWinIcon := TIcon.Create;
fWinIcon.OnChange := OnIconChange;
fIndent := 75;
Show;
end;
function MyWndProc(HWND: HWND; Msg: UINT; WParam: WParam; LParam: LParam): LRESULT; stdcall;
var
CurPos: TPoint;
Shift: TShiftState;
begin
Result := 0;
GetCursorPos(CurPos);
Shift := [];
if Msg = WM_TRAYICON then
begin
case lParam of
NIN_BALLOONSHOW : if assigned(gOnBalloonShow) then gOnBalloonShow(nil) ; //when balloon has been showed
NIN_BALLOONHIDE : if assigned(gOnBalloonHide) then gOnBalloonHide(nil) ; //when balloon has been hidden
NIN_BALLOONTIMEOUT : if assigned(gOnBalloonTimeout) then gOnBalloonTimeout(nil) ; //when balloon has been timed out
NIN_BALLOONUSERCLICK : if assigned(gOnBalloonUserClick) then gOnBalloonUserClick(nil, gBalloonID, gBalloonTagStr) ; //when balloon has been clicked
WM_LBUTTONDOWN : if assigned(gOnMouseDown) then gOnMouseDown(nil, mbLeft, Shift, CurPos.X, CurPos.Y); //when LEFT mouse button is DOWN on the tray icon
WM_RBUTTONDOWN : if assigned(gOnMouseDown) then gOnMouseDown(nil, mbRight, Shift, CurPos.X, CurPos.Y); //when RIGHT mouse button is DOWN on the tray icon
WM_LBUTTONUP : //when LEFT mouse button is UP on the tray icon
begin
if assigned(gOnMouseUp) then gOnMouseUp(nil, mbLeft, Shift, CurPos.X, CurPos.Y);
if assigned(gOnClick) then gOnClick(nil);
end;
WM_RBUTTONUP : //when RIGHT mouse button is UP on the tray icon
begin
if assigned(gOnMouseUp) then gOnMouseUp(nil, mbRight, Shift, CurPos.X, CurPos.Y);
SetForegroundWindow(gHWND.Wnd);
if assigned(gPopUpMenu) then gPopUpMenu.PopUp(CurPos.X, CurPos.Y - gIndent);
end;
WM_LBUTTONDBLCLK : if assigned(gOnDblClick) then gOnDblClick(nil, mbLeft, Shift, CurPos.X, CurPos.Y); //when tray icon has been DOUBLECLICKED with LEFT mouse button
WM_RBUTTONDBLCLK : if assigned(gOnDblClick) then gOnDblClick(nil, mbRight, Shift, CurPos.X, CurPos.Y); //when tray icon has been DOUBLECLICKED with RIGHT mouse button
WM_MOUSEHOVER : if assigned(gOnMouseEnter) then gOnMouseEnter(nil);
WM_MOUSELEAVE : showmessage('a');//if assigned(gOnMouseLeave) then gOnMouseLeave(nil);
// WM_MOUSEMOVE : gOnMouseMove(nil, Shift, CurPos.X, CurPos.Y); //This one causes an error
end;
end;
Result := CallWindowProc(Ptr(gOldWndProc), HWND, Msg, WParam, LParam);
end;
procedure TCrossTray.Show;
begin
gHWND := WindowHandleToPlatform(fForm.Handle);
gPopUpMenu := fTrayMenu ;
gIndent := fIndent ;
gOnClick := fOnClick ;
gOnMouseDown := fOnMouseDown ;
gOnMouseUp := fOnMouseUp ;
gOnDblClick := fOnDblClick ;
gOnMouseEnter := fOnMouseEnter ;
gOnMouseLeave := fOnMouseLeave ;
// gOnMouseMove := fOnMouseMove ;
gOnBalloonShow := fOnBalloonShow ;
gOnBalloonHide := fOnBalloonHide ;
gOnBalloonTimeout := fOnBalloonTimeout ;
gOnBalloonUserClick := fOnBalloonUserClick ;
with fTrayIcon do
begin
cbSize := SizeOf;
Wnd := gHWND.Wnd;
uID := 1;
uFlags := NIF_MESSAGE + NIF_ICON + NIF_TIP;// + NIF_STATE + NIF_INFO + NIF_GUID + NIF_REALTIME + NIF_SHOWTIP;
dwInfoFlags := NIIF_NONE;
uCallbackMessage := WM_TRAYICON;
hIcon := GetClassLong(gHWND.Wnd, GCL_HICONSM);
StrLCopy(szTip, PChar(fHint), High(szTip));
end;
Shell_NotifyIcon(NIM_ADD, @fTrayIcon);
if gFirstRun then
begin
gOldWndProc := GetWindowLongPtr(gHWND.Wnd, GWL_WNDPROC);
SetWindowLongPtr(gHWND.Wnd, GWL_WNDPROC, LONG_PTR(@MyWndProc));
gFirstRun := False;
end;
end;
procedure TCrossTray.ShowBallonHint;
begin
with fTrayIcon do
begin
StrLCopy(szInfo, PChar(fBalloonText), High(szInfo));
StrLCopy(szInfoTitle, PChar(fBalloonTitle), High(szInfoTitle));
uFlags := NIF_INFO;
case fBalloonIconType of
None : dwInfoFlags := 0;
Info : dwInfoFlags := 1;
Warning : dwInfoFlags := 2;
Error : dwInfoFlags := 3;
User : dwInfoFlags := 4;
BigWarning : dwInfoFlags := 5;
BigError : dwInfoFlags := 6;
end;
end;
Shell_NotifyIcon(NIM_MODIFY, @fTrayIcon);
end;
procedure TCrossTray.Balloon(ATitle, AMessage: string; AType: TBalloonIconType; AID: integer; ATagStr: string);
begin
BalloonTitle := ATitle ;
BalloonText := AMessage ;
IconBalloonType := AType ;
gBalloonID := AID ;
gBalloonTagStr := ATagStr ;
ShowBallonHint;
end;
procedure TCrossTray.BalloonNone(ATitle, AMessage: string; AID: integer; ATagStr: string);
begin
Balloon(ATitle, AMessage, None, AID, ATagStr);
end;
procedure TCrossTray.BalloonInfo(ATitle, AMessage: string; AID: integer; ATagStr: string);
begin
Balloon(ATitle, AMessage, Info, AID, ATagStr);
end;
procedure TCrossTray.BalloonWarning(ATitle, AMessage: string; AID: integer; ATagStr: string);
begin
Balloon(ATitle, AMessage, Warning, AID, ATagStr);
end;
procedure TCrossTray.BalloonWarningBig(ATitle, AMessage: string; AID: integer; ATagStr: string);
begin
Balloon(ATitle, AMessage, BigWarning, AID, ATagStr);
end;
procedure TCrossTray.BalloonError(ATitle, AMessage: string; AID: integer; ATagStr: string);
begin
Balloon(ATitle, AMessage, Error, AID, ATagStr);
end;
procedure TCrossTray.BalloonErrorBig(ATitle, AMessage: string; AID: integer; ATagStr: string);
begin
Balloon(ATitle, AMessage, BigError, AID, ATagStr);
end;
procedure TCrossTray.BalloonUser(ATitle, AMessage: string; AID: integer; ATagStr: string);
begin
Balloon(ATitle, AMessage, User, AID, ATagStr);
end;
procedure TCrossTray.Hide;
begin
Shell_NotifyIcon(NIM_DELETE, @fTrayIcon);
end;
destructor TCrossTray.Destroy;
begin
Shell_NotifyIcon(NIM_DELETE, @fTrayIcon);
fWinIcon.Free;
inherited;
end;
procedure TCrossTray.OnIconChange(Sender: TObject);
begin
fTrayIcon.hIcon := fWinIcon.Handle;
Shell_NotifyIcon(NIM_MODIFY, @fTrayIcon);
end;
function TCrossTray.GetIconRect: TRect;
var S: NOTIFYICONIDENTIFIER;
begin
FillChar(S, SizeOf(S), #0);
S.cbSize := SizeOf(NOTIFYICONIDENTIFIER);
S.hWnd := fTrayIcon.Wnd;
S.uID := fTrayIcon.uID;
Shell_NotifyIconGetRect(S, result);
end;
procedure TCrossTray.LoadIconFromFile(APath: UTF8String);
begin
fWinIcon.LoadFromFile(APath);
end;
end.
這是一個代碼牆。例如，我們打算如何處理mac代碼。你不能爲我們削減它嗎？ –
@DavidHeffernan你是對的，在這種情況下mac代碼不是必需的，因爲它是完全功能的。我更新了代碼塊。 – vaid