? ? ? ?隨著Chrome瀏覽器的使用范圍越來越多，而且Chrome不挑食，基本上什么系統都可以跑，而且速度那是飛快，所以C/S程序調用第三方的B/S程序或者網頁時都考慮使用支持最新H5技術的內核，而Delphi的瀏覽控件那真心是不支持很多新的東西，而且還是微軟的內核，各種的水士不符，沒有辦法只能想其他辦法。

? ? ? 經過尋找最終發現CEF4delphi項目，CEF4Delphi?是由 SalvadorDíazFau 創建的一個開源項目，用于在基于Delphi的應用程序中嵌入基于Chromium的瀏覽器。CEF4Delphi 基于Henri Gourvest 公司的?DCEF3。DCEF3的原始許可證仍適用于CEF4Delphi。閱讀任何* .pas文件的第一行中的許可條款。

? ? ? 控件的下載地址：https://github.com/salvadordf/CEF4Delphi/archive/master.zip

? ? ? 軟件編譯后的運行環境下載：http://opensource.spotify.com/cefbuilds/index.html

說明一下運行環境，由于是調用的Chrome內核，所以就有一堆的dll文件要與Chrome進行交互，程序編譯后如果沒有這些文件支持，就會如下的提示

? ??

除了準備以上的材料以外，安裝最新版的Chrom也是必須的，這樣我們就可以開始進入調用的過程了

1.安裝控件

將下載下來的CEF4Delphi-master.zip文件解壓到Delphi目錄下，例如：

然后將程序的source路徑加入到library路徑中，同時要注意32位、64位的問題

打開控件的安裝文件

然后編譯安裝，我們的控件部分就安裝成功了

然后就可以打開DEMO進行學習使用了，

這里面有幾點要注意，就是這個控件的項目文件與普通的項目文件是有區別的

program Project2;uses{$IFDEF DELPHI16_UP}Vcl.Forms,WinApi.Windows,System.SysUtils,{$ELSE}Forms,Windows,SysUtils,{$ENDIF }uCEFApplication,uCEFWorkScheduler,Unit2 in 'Unit2.pas' {SimpleExternalPumpBrowserFrm};{$R *.res}beginGlobalCEFWorkScheduler := TCEFWorkScheduler.Create(nil);GlobalCEFApp := TCefApplication.Create;GlobalCEFApp.FlashEnabled := False;GlobalCEFApp.FastUnload := True;GlobalCEFApp.ExternalMessagePump := True;GlobalCEFApp.MultiThreadedMessageLoop := False;GlobalCEFApp.OnScheduleMessagePumpWork := GlobalCEFApp_OnScheduleMessagePumpWork;if GlobalCEFApp.StartMainProcess thenbeginApplication.Initialize;{$IFDEF DELPHI11_UP}Application.MainFormOnTaskbar := True;{$ENDIF}Application.CreateForm(TSimpleExternalPumpBrowserFrm, SimpleExternalPumpBrowserFrm);Application.Run;// The form needs to be destroyed *BEFORE* stopping the scheduler.SimpleExternalPumpBrowserFrm.Free;GlobalCEFWorkScheduler.StopScheduler;end;FreeAndNil(GlobalCEFApp);FreeAndNil(GlobalCEFWorkScheduler);end.

而且每個pas文件里面也是有一些自己的特點的，所以要注意在使用的時候要保證格式的正確

即每個單元開始的位置加入了??{$I cef.inc}，在本地程序編譯的時候也要把這個文件加在pas文件所在的目錄

unit Unit2;{$I cef.inc}interfaceuses{$IFDEF DELPHI16_UP}Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ExtCtrls,{$ELSE}Windows, Messages, SysUtils, Variants, Classes, Graphics,Controls, Forms, Dialogs, StdCtrls, ExtCtrls,{$ENDIF}uCEFChromium, uCEFWindowParent, uCEFTypes, uCEFConstants, uCEFInterfaces, uCEFWorkScheduler,uCEFChromiumWindow;typeTSimpleExternalPumpBrowserFrm = class(TForm)AddressPnl: TPanel;GoBtn: TButton;Timer1: TTimer;URLCbx: TComboBox;ChromiumWindow1: TChromiumWindow;procedure GoBtnClick(Sender: TObject);procedure FormShow(Sender: TObject);procedure Timer1Timer(Sender: TObject);procedure FormCreate(Sender: TObject);procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);// These 3 TChromiumWindow events are called in the main app thread, so you can do whatever you want with the GUI.procedure ChromiumWindow1AfterCreated(Sender: TObject);procedure ChromiumWindow1BeforeClose(Sender: TObject);procedure ChromiumWindow1Close(Sender: TObject);procedure Chromium_OnBeforePopup(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const targetUrl, targetFrameName: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean; var popupFeatures: TCefPopupFeatures; var windowInfo: TCefWindowInfo; var client: ICefClient; var settings: TCefBrowserSettings; var noJavascriptAccess: Boolean; out Result: Boolean);protectedFCanClose : boolean;FClosing : boolean;procedure WMMove(var aMessage : TWMMove); message WM_MOVE;procedure WMMoving(var aMessage : TMessage); message WM_MOVING;procedure WMEnterMenuLoop(var aMessage: TMessage); message WM_ENTERMENULOOP;procedure WMExitMenuLoop(var aMessage: TMessage); message WM_EXITMENULOOP;end;varSimpleExternalPumpBrowserFrm : TSimpleExternalPumpBrowserFrm;GlobalCEFWorkScheduler : TCEFWorkScheduler = nil;procedure GlobalCEFApp_OnScheduleMessagePumpWork(const aDelayMS : int64);implementation{$R *.dfm}usesuCEFApplication;// This demo has a simple browser with a TChromiumWindow using the "External message pump" mode // to schedule the cef_do_message_loop_work calls thanks to the TCEFWorkScheduler class.// It was necessary to destroy the browser with the following destruction sequence : // 1. The FormCloseQuery event sets CanClose to False and calls TChromiumWindow.CloseBrowser, which triggers the TChromiumWindow.OnClose event. // 2. The TChromiumWindow.OnClose event calls TChromiumWindow.DestroyChildWindow which triggers the TChromiumWindow.OnBeforeClose event. // 3. TChromiumWindow.OnBeforeClose sets FCanClose to True and closes the form.procedure GlobalCEFApp_OnScheduleMessagePumpWork(const aDelayMS : int64); beginif (GlobalCEFWorkScheduler <> nil) then GlobalCEFWorkScheduler.ScheduleMessagePumpWork(aDelayMS); end;procedure TSimpleExternalPumpBrowserFrm.FormCreate(Sender: TObject); beginFCanClose := False;FClosing := False; end;procedure TSimpleExternalPumpBrowserFrm.FormCloseQuery(Sender: TObject; var CanClose: Boolean); beginCanClose := FCanClose;if not(FClosing) thenbeginFClosing := True;Visible := False;AddressPnl.Enabled := False;ChromiumWindow1.CloseBrowser(True);end; end;procedure TSimpleExternalPumpBrowserFrm.FormShow(Sender: TObject); begin// For simplicity, this demo blocks all popup windows and new tabsChromiumWindow1.ChromiumBrowser.OnBeforePopup := Chromium_OnBeforePopup;// GlobalCEFApp.GlobalContextInitialized has to be TRUE before creating any browser// If it's not initialized yet, we use a simple timer to create the browser later.if not(ChromiumWindow1.CreateBrowser) then Timer1.Enabled := True; end;procedure TSimpleExternalPumpBrowserFrm.Chromium_OnBeforePopup(Sender: TObject;const browser: ICefBrowser; const frame: ICefFrame; const targetUrl,targetFrameName: ustring; targetDisposition: TCefWindowOpenDisposition;userGesture: Boolean; var popupFeatures: TCefPopupFeatures;var windowInfo: TCefWindowInfo; var client: ICefClient;var settings: TCefBrowserSettings; var noJavascriptAccess: Boolean;out Result: Boolean); begin// For simplicity, this demo blocks all popup windows and new tabsResult := (targetDisposition in [WOD_NEW_FOREGROUND_TAB, WOD_NEW_BACKGROUND_TAB, WOD_NEW_POPUP, WOD_NEW_WINDOW]); end;procedure TSimpleExternalPumpBrowserFrm.ChromiumWindow1AfterCreated(Sender: TObject); beginCaption := 'Simple External Pump Browser';AddressPnl.Enabled := True;GoBtn.Click; end;procedure TSimpleExternalPumpBrowserFrm.ChromiumWindow1BeforeClose(Sender: TObject); beginFCanClose := True;Close; end;procedure TSimpleExternalPumpBrowserFrm.ChromiumWindow1Close(Sender: TObject); begin// DestroyChildWindow will destroy the child window created by CEF at the top of the Z order.ChromiumWindow1.DestroyChildWindow; end;procedure TSimpleExternalPumpBrowserFrm.GoBtnClick(Sender: TObject); beginChromiumWindow1.LoadURL(URLCbx.Text); end;procedure TSimpleExternalPumpBrowserFrm.Timer1Timer(Sender: TObject); beginTimer1.Enabled := False;if not(ChromiumWindow1.CreateBrowser) and not(ChromiumWindow1.Initialized) thenTimer1.Enabled := True; end;procedure TSimpleExternalPumpBrowserFrm.WMMove(var aMessage : TWMMove); begininherited;if (ChromiumWindow1 <> nil) then ChromiumWindow1.NotifyMoveOrResizeStarted; end;procedure TSimpleExternalPumpBrowserFrm.WMMoving(var aMessage : TMessage); begininherited;if (ChromiumWindow1 <> nil) then ChromiumWindow1.NotifyMoveOrResizeStarted; end;procedure TSimpleExternalPumpBrowserFrm.WMEnterMenuLoop(var aMessage: TMessage); begininherited;if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := True; end;procedure TSimpleExternalPumpBrowserFrm.WMExitMenuLoop(var aMessage: TMessage); begininherited;if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := False; end;end.

將編譯后的程序放到運行環境中

最終程序的運行情況如下：

瀏覽本地文件

總結

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