DelphiXE8FMX工程实现无边框托动(发送消息)

1.引用单元

uses Winapi.Windows, FMX.Platform.Win, Winapi.Messages;

2.发送消息

//发送系统消息
SendMessage(FmxHandleToHwnd(Handle), WM_SYSCOMMAND,SC_MOVE + HTCAPTION, 0);

网上说要用ReleaseCapture()，我没有用也可以，没细看为什么。

我看了一下ReleaseCapture()与StartWindowDrag，其实都是取坐标用的。

3.实例代码

unit Unit1;

interface

uses
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.Objects;

type
  TForm1 = class(TForm)
    Image1: TImage;
    procedure Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Single);
    procedure FormShow(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
uses Winapi.Windows, FMX.Platform.Win, Winapi.Messages;
{$R *.fmx}

procedure TForm1.FormShow(Sender: TObject);
begin
  Self.BorderStyle := TFmxFormBorderStyle.None; //窗体样式
  Image1.WrapMode := TImageWrapMode.Stretch; //图片加载方式
end;

procedure TForm1.Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
  Y: Single);
begin
  //发送系统消息
  SendMessage(FmxHandleToHwnd(Handle), WM_SYSCOMMAND,SC_MOVE + HTCAPTION, 0);
end;

end.