Dear list, I have to write a program that allows a user to select a point, moves it to where it belongs, drops it and clicks on a button to get the new x and y coordinates, date and time. The program has two buttons, one for the selection and a second one for updating the columns. Updating works with a routine using the current selection. Now I need to be sure that some event dont happen. -The user clicks one point moves it without saving and picks another one. -double selection I tried to solve it with "SelChangendHandler" which seems to be the right routine to get to know the information about events caused by the user. With this I solved the way of double-selection. But I cant handle the problem of selection-moving-not saving-new selection. My Questions are: Is it the right way solving this problem using "SelChangendHandler"? Is there an easier way to solve the problem? How can I get to know if the user has moved a point without saving and selected a new one? Thanks in advance Hendrik Possberg
