TMainMenu: Hotkeys active with visible is false

[Milsa]

I have project of emulator. Project has TMainMenu and image of computer output. If image is fullscreen, main menu is visible. I need hide main menu. If I set MainMenu.Visible := False, then hotkeys in menu is inactive.

Does exist an option to activate hotkeys in main menu with hidden / transparent main menu?

I don't want to do duplicate keyboard shortcut handling.

[AlexTP]

One have to check it in Delphi - does it disable hotkeys when menu Visible=false?

[Milsa]

I do not know. I have Lazarus only. But I need menu hotkeys active when menu is invisible.

[Zvoni]

Cannot confirm (FPC322-32Bit/Laz220-32Bit/Win10-64Bit)

Though something weird: Invisible MenuItem with ShortCut, after pressing ShortCut, Lazarus jumps into Debug-Mode, and shows the Assembler-Window (as if on Breakpoint)
Hit on F8, and OnClick-Event-Handler for invisible MenuItem gets processed

[Milsa]

It's an older project. I need to find out what exactly is causing the problem there. I'm trying a clean project for verification.

TMainMenu has not property Visible.

[Zvoni]

It's an older project. I need to find out what exactly is causing the problem there. I'm trying a clean project for verification.

TMainMenu has not property Visible.

No, you have to add a TMenuItem (best with Menu-Editor).
TMenuItem has Visible-Property

TMainMenu is only the uppermost Container for the Menu-Tree

[Milsa]

Please accept my apologies. My question should have been different: Why is there no Visible property in TMainMenu to quickly hide menus so that keyboard shortcuts work?

I'm looking at the project right now and I have to remove the menu in a temporary variable there because I can't hide it.

[Milsa]

It's an older project. I need to find out what exactly is causing the problem there. I'm trying a clean project for verification.

TMainMenu has not property Visible.

No, you have to add a TMenuItem (best with Menu-Editor).
TMenuItem has Visible-Property

Does exist option to hide all menu no every item?

[Zvoni]

Please accept my apologies. My question should have been different: Why is there no Visible property in TMainMenu to quickly hide menus so that keyboard shortcuts work?

I'm looking at the project right now and I have to remove the menu in a temporary variable there because I can't hide it.

TMainMenu is a Non-Visual component and is just a Container.
Everything you see in a MenuBar are TMenuItems

[Milsa]

So, the only option is to hide all primary MenuItem?

[Milsa]

Is this the simplest solution? Set the Tag to 1 for the root MenuItem and hide them in the loop?

[AlexTP]

Try this hack:
MainMenu1.Parent:= nil; //to hide the menubar

[balazsszekely]

@Milsa
You can achieve what are you after by creating different actions using a TActionList, then link each menu item to it's equivalent action. When you wish to hide the main menu, just do the following:

Code: Pascal  [Select][+][-]

1. Form1.Menu := nil;

The shortcut keys will still work via the ActionList.

[Milsa]

Try this hack:
MainMenu1.Parent:= nil; //to hide the menubar

This is no good. Menu will be not work.

[Milsa]

Try this hack:
MainMenu1.Parent:= nil; //to hide the menubar

This is no good. Menu will be not work.

That's a duplication of hotkeys, isn't it?

I will try to hide MenuItems with Tag 1 (root element).