Kbase P121324: Problem with sendMessageA using a combo-box
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
8/27/2007 |
|
Status: Unverified
FACT(s) (Environment):
Progress 9.x
OpenEdge 10.x
Windows
SYMPTOM(s):
combo-box problem with sendMessageA and dropdown list-items
WIN32 API sendMessageA function used with combo-box
Two combos inside a frame having a on-entry trigger to dropdown the list-items
User types the desired value, and when go to the next combo the typed value is not put at the combo
CAUSE:
This is a known issue
FIX:
To workaround this:
1 - Avoid to have both combos together in the screen, which may require redesign of the application form.
2 - Use any-printable instead of on entry event. The any-printable event will fire as the user types any character inside the combo. The disadvantage is that sendMessage is called as many times as the user press a printable character.