screenset definition : purpose of id

[cseyler]

Hello,
As far as the tabs "labelnumber" represent "layers" on which other controls (like background, button, led,...) can be linked, i don't understand the purpose of the "control id" (background number, button number, ...)

Could you clarify the purpose of these IDs ?

Thanks in advance

[dezsoe]

Which function has this parameter?

[cseyler]

void Addbackground(double posX, double posY, double width, double height, int picturenumber, int backgroundnumber, int layernumber)

backgroundnumber ?

Function: void Addmdi(string labeltext, string labelfont, string textalign, int fontsize, int fontcolor, int posX, int posY, int width, int MDInumber, int layernumber)

MDINumber ?

[ger21]

To know which one it is if you have multiple backgrounds.

[dezsoe]

The backgroundnumber is not used, you can simply zero out. (It is there for backwards compatibility.)

The AddMDI function is not used. You can add MDI by placing field 1000.