Kbase P25939: How to Set the wait state
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
27/05/2003 |
|
Status: Unverified
GOAL:
How to Set the wait state
FACT(s) (Environment):
Progress 9.1x
FIX:
When a Windows application is going to perform some task that should not be interrupted, and may take some time it is common to display the "Wait" cursor. This cursor gives a visual clue that no input will be accepted and that the system is busy. To accomplish this in Progress you can use the SESSION method SET-WAIT-STATE. This method takes a string parameter with three options:
1. GENERAL
2. COMPILER
3. ""
The first two turn on the wait state while the third turns it off.
WARNING
Be sure if you turn on the wait state that the code to turn off the wait state is reachable! If not you will never get the ability to accept input to your Progress session. As an example, don't have some input blocking statement between the two, as no input is possible you will never get past the blocking statement.
EXAMPLE -
ASSIGN logical-var = SESSION:SET-WAIT-STATE("GENERAL").
ASSIGN logical-var = SESSION:SET-WAIT-STATE("").