'CheshireCat' wrote:
Hello Wolfgang,
try BDiMode := bdLeftToRight and/or ParentBDiMode := True.
Found the solution which has actually nothing to do with Alpha Controls. I installed a Touch Screen on my PC, which changed the relevant Registry Setting.
[HKEY_CURRENT_USER Software Microsoft Windows NT CurrentVersion Windows]
There is a variable named “MenuDropAlignment” which can take two values, 0 or 1 (0 for left alignment 1 for an alignment at right).