Fenster verschieben?

[DualCoreCpu]

Hallo!

Habe es jetzt so gelöst:

Danke noch mal allen, die mir hier helfen!!!

Delphi-Quellcode:

unit movewin;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    lblmouseX: TLabel;
    lblmouseY: TLabel;
    lblwidth: TLabel;
    lbltop: TLabel;
    lblleft: TLabel;
    lblheight: TLabel;
    lbMouseX: TLabel;
    lbMouseY: TLabel;
    lbLeft: TLabel;
    lbHeight: TLabel;
    lbWidth: TLabel;
    lbTop: TLabel;
    procedure FormCreate(Sender: TObject);
    procedure FormMouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
    procedure FormMouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure FormMouseUp(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
  private
    { Private-Deklarationen }
    DeltaX,DeltaY: Integer;
    MouseX,MouseY: Integer;
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  lbLeft.Caption := IntToStr(Left);
  lbTop.Caption  := IntToStr(Top);
  lbWidth.Caption := IntToStr(Width);
  lbHeight.Caption := IntToStr(Height);
end;

procedure TForm1.FormMouseMove(Sender: TObject; Shift: TShiftState; X,
  Y: Integer);
begin
  LbMouseX.Caption := IntToStr(X);
  LbMouseY.Caption := IntToStr(Y);
  DeltaX := X - Left;
  DeltaY := Y - Top;
end;

procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  if ssLeft in Shift Then
  begin
    DeltaX := X - Left;
    DeltaY := Y - Left;
    MouseX := X;
    MouseY := Y;
   (*
     DeltaX := MouseX - Left; // ---- so hatte ich vorher DeltaX
     DeltaY := MouseY - Top;  // ---- und DeltaY berechnet.
   *)
  end;
end;

procedure TForm1.FormMouseUp(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  Left := Left + DeltaX; 
  Top  := Top  + DeltaY; 
  lbLeft.Caption := IntToStr(Left);
  lbTop.Caption  := IntToStr(Top);
end;

end.

Jetzt ist aber der Betrag meiner Verschiebung zu groß gegenüber meiner Mausbewegung.