Terrible flickering of TC's window when resizing

[SanskritFritz]

2s_k
True, TMyListBox. I wonder if there is an OnPaint event. Might be, because all the colorings he has to do by hand i think. Is it only the listbox that flickers?

[s_k]

True, TMyListBox. I wonder if there is an OnPaint event. Might be, because all the colorings he has to do by hand i think. Is it only the listbox that flickers?

Now I checked that in Spy++ and WM_PAINT messages are being sent to TMyListBox and it seems this control processes them (return value is 0).

Btw it is not only ListBox that flickers, every child control flickers, excepting the comboboxes with current drive. Weird...

[SanskritFritz]

it seems this control processes them (return value is 0)

Of course it processes them, Delphi does it by default.

Btw it is not only ListBox that flickers, every child control flickers

I expected that.

excepting the comboboxes with current drive

That I didnt expect!

[s_k]

That I didnt expect!

Nor did I. The comboboxes stay calm in the storm of flickering

[SanskritFritz]

I just tried it. Same behaviour here. It flickers really badly (except those combos), but i almost never change the size of TC, so it never was a problem