ListView with Enabled DragBegin and DoubleClick

[Fred Tomke]

Hello, am I right that enabled AllowDragBegin supresses the release of OnDoubleClick in ListViews? As far as I remember it should work. Am I wrong?

Fred

[owenwengerd]

The fixes for your recent bug report (https://sourceforge.net/tracker/?func=detail&aid=2789772&group_id=187950&atid=923363) may have caused some things to change. Do you mean that OnDoubleClick never fires when AllowDragBegin is enabled?

[Fred Tomke]

Yes, I can say OnDoubleClick never fires when AllowDragBegin is enabled. I tried to click thousand times in a second but it does not want to fire. Even in a modal form it is very difficult to fire on doubleclick.

Hm, I'm wondering the relationship between giving back the correct column id with the calling of on doubleclick...

Fred

[owenwengerd]

The column id fix required a change in the sequence of Windows message processing and firing events, which is why it could have side effects. However, at the time I fixed the column id bug, I thought that I tested OnDoubleClick and it was not firing for column 0 even before the fix. I assumed this was the result of the second click being "eaten" by the hidden drag/drop window created by the first click, so I ignored it. Are you certain that it was firing in previous builds?

[Fred Tomke]

Yes, because I'm just working on a layer tool for sorting object draw order by layer order. When doubleclicking a layer or a layergroup within another layergroup the layer properties of the doubleclicked layer / layergroup can be changed. That's why I know that doubleclicked worked.

I have also a modal form with doubleclick event and enabled allowdragbegin. In this case doubleclick makes the selected layer blinking in the drawing.

Fred

[owenwengerd]

Ok, I'll investigate to see what changed. Do you remember the latest working build?

[Fred Tomke]

Sorry for the late answer, I was out.

Since I saved all releases I will go back until I've found it.

Fred