所以我一直在根据两个不同的源代码处理这个TrayIcon组件。
一个用于Windows，一个用于Mac。
一切正常，但使用FMX TPopupMenu作为托盘图标菜单时，它会不断弹出任务栏，有时甚至在从trayicon容器中右键单击应用程序图标时根本不弹出（你知道）包含所有隐藏图标的小盒子？）
I found an article on the internet (read here)表明VCL TPopupMenu将是一种解决方法。
我的应用程序是跨平台的，我一直在使用FMX所以我需要使用FMX组件。
现在提出问题：如何在任务栏前弹出FMX菜单？
修改
注1：我在Windows 8.1上使用Delphi XE7
注2：在附加的代码中，uses子句中的一部分可以被注释掉，以便测试FMX.Menus或VCL.Menus，然后
Create构造函数中有一大块代码也必须取消注释才能与VCL.Menus一起使用。
这是我的托盘图标代码：
{The source is from Nix0N, livtavit@mail.ru, 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.
答案 0 :(得分：0)
替换：
gHWND := WindowHandleToPlatform(fForm.Handle);
使用：
gHWND := ApplicationHWND;