Kbase 18145: The U1-U10 Events Cannot Be Triggered from Outside Progress
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
28/07/1998 |
|
The U1-U10 Events Cannot Be Triggered from Outside Progress
A lot of customers who are familiar with using the Windows API from
within Progress expect to be able to send messages to Progress from
other applications by using either the SendMessage or PostMessage API
functions.
For some standard Windows messages this may work but people tend to
want to extend this to also trigger the U1 thru U10 "Developer" events
in Progress. People assume that these "Developer" events directly
map to the WM_USER message in Windows and that each subsequent user
event (i.e. U1, U2, U3, etc) map to WM_USER + 1 (for U2), WM_USER + 2
(for U3), etc.
This is not the case. The "Developer" events cannot be triggered
from outside of Progress.