Hi, In order to prevent OS3.5 choking on my old form draw code I've added a FrmDrawForm call before anything else. Of course this creates some nasty redraw artifacts and I'd like to split the code I inherited up into that which can validly be done before the form is drawn and the post-draw logic. Unfortunately I'm having some trouble finding any documentation on when specific operations (such as object hiding, label modification, etc) are valid. There is an exchange about this in the archive which seems to terminate at message: http://www.egroups.com/message/palm-dev-forum/39894 where our esteemed Mr Rollin has stated: > That bus error is intentional. When there is no actively determined > "draw window", Palm OS jams an invalid pointer into the variable > that normally points to the draw window. Then, if anything tries to > perform an operation on the draw window before re-establishing > what that window is, it gets a bus error. and Stringer has replied: > Can you be specific as to what functions, when called before > FrmDrawForm() on v3.5 debug ROMs, will return garbage, but > when used on other ROMs would return a valid value. What functions > specifically can't we use and what is the valid alternative? Has someone got an answer to this or can point me in the direction of the docs on the subject? If it's down to trial and error I'd be willing to accumulate information fragments from other people into a FAQ entry on this subject. Chris Tutty -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/
