Say you have an MDI form with about 100 different children (not open all at once). The MDI parent has a toolbar and the buttons include: delete, cancel, and search that operate on records not text. Unlike buttons such as cut/copy/paste for which you can write generic code, these buttons will behave differently based upon which child is active. I need to send a message from the MDI parent toolbar to the child form telling it that the Delete button was pressed (for example.) At that point the child would handle it's specialized code from there.
What is the best way to do this?