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, );

 end;

 end.