[RESOLVED] VB6 - Check if a line (graphic) exists

[Jose_VB]

I'm writting a code to create a grid inside the picturebox http://dret.net/lectures/web-spring09/img/grid.png
I want to check if a line has been already drawn.
I create a line called Line1(0). Then the program executes the funcion

 Load Line1(x)

.
When I resize the form I call again to the function

 Load Line1(x)

to add lines in the picturebox.
If I charge the line1(2) twice the programs shows the next error: "The object has been already charged".

I want to know 2 things:
A) How the program can knows if a line exists to prevent to charge it again
B) What I've to write to remove a line from the picturebox. If Load Line1(X) is to create, what is the opposite function that removes a specific line?