RTL means "Right To Left", and it is used to make the windows compatible with the Arabic settings. To make a Form RTL use the following options when createing the Form:
WS_EX_RTLREADINGto make the window right to left reading order.
WS_EX_LEFTSCROLLBARto make the scroll bar in the left.
WS_EX_RIGHTto give right alignmenty for the window.
procedure CreateParams(var Params: TCreateParams); override;Then write the following code:
procedure TForm1.CreateParams(var Params: TCreateParams); begin inherited CreateParams(Params); { call the inherited first } with Params do ExStyle := ExStyle or WS_EX_RTLREADING or WS_EX_LEFTSCROLLBAR or WS_EX_RIGHT ; end;