Is it possible to change the visible position for toolbox external toolbar?

Hello. I have created a window with flag pain and attached it as external top left toolbar.
I think it appears as nested window as result. The problem is that its furnitature overlap the main window but i want it to be a bit left.
I get state with wimp_get_window_state_and_nesting function. change visible.×0 and visiblex1 and call wimp_open_window_nested_with_flags. but it always return to original values. why? is there a way to set it for always? I see it changed but it jump always back. What do I miss? Thanks

A nested window is always inside the “outline” of the window (the outside of the window furniture). It cannot extend further than that.

If you want a pane partially or wholly outside your main window, you must position it as a separate window, not a nested one.

Another example, this time from my Manga app. Note the toolbar at the bottom. It’s a separate window “nested” into the main window.

So do you mean guys that the only way is to make this window separate and have a pain to always update its coordinates when i am moving/close/open/etc main window?

Yes. There isn’t a way to connect two windows, only to insert one inside another.

To make attached (not embedded) panes work, you must know the X,Y offset from one to another. I don’t use the Toolbox so I’ll describe how to do it using Wimp calls directly, but it’ll be similar with the Toolbox.

On OpenWindow event:

If the window to be opened/moved is your main window, calculate the required position of the pane from the given x0,y0,x1,y1 and your pane offset X,Y, and open it first – make sure you open the pane using the given behind handle. Set behind to be the handle of your pane.

Now open your main window (behind your pane) and then after this Wimp_OpenWindow call check that the coordinates in the buffer match the requested x0,y0,x1,y1 – because they might not (for example when maximising a window near the screen edge).

If the coords don’t match, the pane will not be in the right place, so recalculate using the coordinates returned by the previous OpenWindow and use the pane’s own handle as its behind so that it doesn’t change Z-order.

That’s it. In BASIC it often looks like:

DEFPROCopenwindow(handle,x0,y0,x1,y1,sx,sy,behind)
REM open panes first
CASE handle OF
 WHEN main:PROCopenpane(pane,x0,y1,behind):behind=pane
ENDCASE

REM Now open the requested window
!q=handle:q!4=x0:q!8=y0:q!12=x1:q!16=y1:q!20=sx:q!24=sy:q!28=behind
SYS"Wimp_OpenWindow",,q

REM And if it didn't open where we expected, move the pane
IF q!4<>x0 OR q!8<>y0 OR q!12<>x1 OR q!16<>y1 THEN
 CASE handle OF
  WHEN main:PROCopenpane(pane,q!4,q!16,pane)
 ENDCASE
ENDIF
ENDPROC