Ok, please find now attached my message dialog solution. For better understanding, I put it into a simple test environment. Finally it can be used very similar to the origin MessageDLG procedure. It supports already various settings, but still can be easily tailored to whatever needs you have.
Any feedback & comments are welcome
P.S. I just uploaded a new version with new options to change fonts, colors, icons (awesome font) and button content very easily from your application. Its a complete replacement of the existing messagedlg procedure. Just import the unit "uDialog.pas" and replace existing messagedlg calls with messagedlgA.
P.P.S. Happy New Year to everybody of this great community
uniGUI - MsgDLGDEmo.zip