Colby, John
JColby at dispec.com
Tue Nov 9 13:17:27 CST 2004
Everything I've read says a control does NOT have a hwind. Forms might. Not exactly my area of expertise however. John W. Colby The DIS Database Guy -----Original Message----- From: Jim Dettman [mailto:jimdettman at earthlink.net] Sent: Tuesday, November 09, 2004 2:02 PM To: Access Developers discussion and problem solving Subject: RE: [AccessD] event identification John, <<Objects inside of Access are not true windows to windows, thus the mouse event has to be translated by Access using the position in the Access window etc. >> I don't think that's quite right. While Access objects are not true Windows objects, they do get a hwnd when they are active. I don't think the mouse clicks are translated based on position. Jim -----Original Message----- From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Colby, John Sent: Tuesday, November 09, 2004 12:46 PM To: 'Access Developers discussion and problem solving' Subject: RE: [AccessD] event identification Susan, I have never found a single place to go, particularly for sequence. The order of events can get really strange, particularly if you throw in form / subform loads, subform enter / exit etc. In the Access help somewhere there is a generic order of events for the form events, and the control events, but it definitely cannot tell the whole story. As far as what's going on behind the scenes... you don't even want to know. Now you get into things like mouse clicks where Windows hands the mouse event to Access which translates it into a form / control event. Normally Windows directly hands a mouse event to the window the mouse is inside of - Window meaning a window object, anything square. That object has to decide how to handle the click. Objects inside of Access are not true windows to windows, thus the mouse event has to be translated by Access using the position in the Access window etc. Similarly key down/up/press... is it handled by the form or by the control? What if the control should but doesn't? (it ripples up to the form AFAIK). Events are a rather deep subject. I think I have a widget on my site that uses the control classes and form class to debug.print all the events that fire, in the order fired as you do anything in the form. If you want to use it I will need to go look around and see what it is called. It was part of the lecture series I think. John W. Colby The DIS Database Guy -----Original Message----- From: Susan Harkins [mailto:ssharkins at bellsouth.net] Sent: Tuesday, November 09, 2004 12:21 PM To: 'Access Developers discussion and problem solving' Subject: RE: [AccessD] event identification BTW, does anyone have a good online resource for an explanation of the Access event model -- sequence and what's going on behind the scenes? I just need to check things before I go on record and in my usual search-challenged way, I can't find anything worth squat. :( Susan H. That's what I thought. Thanks guys! Susan H. -- _______________________________________________ AccessD mailing list AccessD at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/accessd Website: http://www.databaseadvisors.com -- _______________________________________________ AccessD mailing list AccessD at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/accessd Website: http://www.databaseadvisors.com -- _______________________________________________ AccessD mailing list AccessD at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/accessd Website: http://www.databaseadvisors.com