SetActiveGadget to nothing

[captain_skank]

Is there a way to set the active gadget to nothing ??

I'm returning to my main form from a subform, but the subform free's all the gadgets on the main form and redraws them so the original active gadget no longer exists and this is causing issues in mains event loop.

Any help appreciated.

Cheers

[TI-994A]

Is there a way to set the active gadget to nothing ??

Just don't call SetActiveGadget().

[captain_skank]

I dont have a choice, as the program returns to the main form the gadget is still highlighted and if the user clicks on this gadget again to see the subform then it throws an error saying gadget not initialised as the original gadget no longer exist's

[smacker]

never mind, misread post, removed this

[ts-soft]

Code: Select all

IsGadget(#gadget)

[TI-994A]

...gadget not initialised as the original gadget no longer exist's

One way to prevent this would be to use constants - that way, even if the gadgets are reinitialised, there would be no risk of such errors.

[captain_skank]

...gadget not initialised as the original gadget no longer exist's

One way to prevent this would be to use constants - that way, even if the gadgets are reinitialised, there would be no risk of such errors.

True, but in this case I use a custom made table and each cell is a gadget and every time the table is 'refreshed' the gadgets are free'd and re-done

[TI-994A]

...as the program returns to the main form the gadget is still highlighted...

How is the gadget being highlighted? If the newly initialised gadget can be referenced, then perhaps there could be a way to change the active gadget in the same manner.

[infratec]

Ugly but working:

Create a TextGadget() HideGadget() and set this gadget active.

Bernd

[netmaestro]

Gave something a try and it seems to work:

Code: Select all

OpenWindow(0,0,0,320,240,"")
StringGadget(0,10,10,200,20,"")
SetActiveGadget(0)
AddWindowTimer(0,1, 3000)

Repeat
  ev=WaitWindowEvent()
  If ev = #PB_Event_Timer
    SetActiveGadget(-1)
    RemoveWindowTimer(0, 1)
  EndIf
Until ev=#PB_Event_CloseWindow

[ozzie]

Create a TextGadget() HideGadget() and set this gadget active.

I do something similar. On all my windows I have a dummy text gadget placed off-screen, but I don't disable the gadget. This is the first gadget created in each window so by default focus goes to that gadget when the window is created.

[TI-994A]

Code: Select all

    SetActiveGadget(-1)

Good one, netmaestro. Seems to work.

[infratec]

Code: Select all

SetActiveGadget(-1)

Is not cross platform.
You get an error in Linux.

[Error] Invalid memory access.

Bernd

[Fred]

I'm moving it to feature request, as it can be useful to have a standard way to do it (ie: SetActiveGadget(#PB_None))

[captain_skank]

Code: Select all

    SetActiveGadget(-1)

Thanks netmaestro - never even thought about trying this - works like a charm.