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StPendl
Sep 10, 2007
- "Initial page"
How to have a single and a double click handler for a listbox
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StPendl Sep 10, 2007 Most people do not know, that a listbox can respond to a single-click by setting the singleClickSelect property.
You can have a different event handler for single-clicks by adding a branch label ( singleClickSelect [action] ) too.
The problem we have, when using both event handlers, is to know which one to use, because Windows sends the single-click and double-click messages to the control, when double-clicking a listbox item.
Here is a demo for using both event handlers based on the Double Click Demo in Newsletter 126
nomainwin
for i = 1 to 10
array$(i) = str$(i)
next
listbox #m.lb, array$(, [DoubleClickAction], 10, 10, 200, 200
statictext #m.txt, "Select an item or double click it.", 10, 220, 200, 20
open "test listbox event handlers" for window as #m
#m "trapclose [quit]"
#m.lb "singleClickSelect [SingleClickAction]"
wait
[SingleClickAction]
calldll #user32, "GetDoubleClickTime", delay as ulong
timer delay, [continue]
wait
[continue]
timer 0
#m.txt "Single Click Action"
wait
[DoubleClickAction]
timer 0
#m.txt "Double Click Action"
wait
[quit]
close #m
end