[lazarus] some things wrong with LM_PAINT

[Micha Nelissen]

Darek Mazur wrote:

> Function TWin32Object.IntSendMessage3(LM_Message: Integer; Sender: TObject;
> Data: Pointer): Integer;
> section for LM_PAINT is absent

LM_PAINT messages are sent from the interface to the LCL, not vice 
versa. Call Invalidate to repaint a control.

HTH,

Micha.