Inno Setup 网页显示插件 webctrl

时间 2021-07-11

; -- Example.iss -- ; restools ; http://restools.hanzify.org ; 插件名：webctrl.dll ; 插件功能：网络连接检测，创建网页页面。 ; 插件大小：9 KB ; V2 增强操作函数，可以同时创建多达 256 个 Web 窗口。 ; V2 例子中演示了建立一个小型浏览器以体现该版本中的函数如何使用。比起 V1 重点在于能同时创建多个 Web 窗口。 [Setup] AppName=我的程序 AppVerName=我的程序版本 1.5 DefaultDirName={pf}/我的程序 [Files] Source: "webctrl.dll"; Flags: dontcopy Source: "file.htm"; Flags: dontcopy Source: "wizard.htm"; Flags: dontcopy Source: "1.gif"; Flags: dontcopy Source: "2.gif"; Flags: dontcopy Source: "3.gif"; Flags: dontcopy [code] function GetSystemMetrics(nIndex: Integer): Integer; external '[email protected] stdcall'; function GetWindowLong(Wnd: HWnd; Index: Integer): Longint; external '[email protected] stdcall'; function SetWindowLong(Wnd: HWnd; Index: Integer; NewLong: Longint): Longint; external '[email protected] stdcall'; //////////////////////////////////////////////////////////////////////////////////// // 检查网络连接是否正常 // lpszURL: 网址，如果这里设置为空网址，检测将会简单的检查网络状态，返回状态标志 // lpdwState: 状态标志，以下是标志值的解释 // 注意：当不用网址来检测网络连接时，只是检查当前是否符合网络连接的条件，但是并不等于 // 能正常连接 Internet，但是这种检测方式相当迅速，如果使用网址连接测试，如果网 // 络处于正常连接，检查速度也相当快，但是如果非正常，那么将会有一点时间延迟，因 // 为实际的连接测试有一个超时的限制来判断是否能够连接。但是这种检测方式是最直接 // 的，并能确实知道是否能够连接网络，所以你按照实际要求来选择检测方式。 // //得到的 lpdwState 返回值可能是以下值的一个或几个值之和： // INTERNET_STATE_CONNECTED ：$00000001 连接状态； // INTERNET_STATE_DISCONNECTED ：$00000002 非连接状态（和 INTERNET_STATE_CONNECTED 对应）； // INTERNET_STATE_DISCONNECTED_BY_USER：$00000010 用户请求的非连接状态 // INTERNET_STATE_IDLE ：$00000100 连接状态，并且空闲 // INTERNET_STATE_BUSY ：$00000200 连接状态，正在响应连接请求 function CheckConnectState(lpsURL: PChar; var lpdwState: dword): boolean; external '[email protected]:webctrl.dll stdcall'; // 初始化 WebCtrl 插件 function InitWebCtrl(): Boolean; external '[email protected]:webctrl.dll stdcall'; // 释放 WebCtrl 插件 function UninitWebCtrl(): Boolean; external '[email protected]:webctrl.dll stdcall'; // 创建 WEB 窗口 function NewWebWnd(hWndParent: HWND; X, Y, nWidth, nHeight: Integer): HWND; external '[email protected]:webctrl.dll stdcall'; // 释放 WEB 窗口 function FreeWebWnd(hWndWeb: HWND): Boolean; external '[email protected]:webctrl.dll stdcall'; // 设置 WEB 窗口的父窗口 function WebWndSetParent(hWndWeb: HWND; hWndParent: HWND): Boolean; external '[email protected]:webctrl.dll stdcall'; // 设置 WEB 窗口的位置大小 function WebWndSetBounds(hWndWeb: HWND; X, Y, nWidth, nHeight: Integer): Boolean; external '[email protected]:webctrl.dll stdcall'; // 显示 HTML 网页 function DisplayHTMLPage(hWndWeb: HWND; lpsURL: PChar): Boolean; external '[email protected]:webctrl.dll stdcall'; // ; // 显示 HTML 字符串 function DisplayHTMLStr(hWndWeb: HWND; lpsHtmlText: PChar): Boolean; external '[email protected]:webctrl.dll stdcall'; // Web 页面动作 function WebPageAction(hWndWeb: HWND; action: DWord): Boolean; external '[email protected]:webctrl.dll stdcall'; const SM_CXSCREEN = 0; SM_CYSCREEN = 1; WS_EX_CLIENTEDGE = $200; GWL_EXSTYLE = -20; WEBPAGE_GOBACK = 0; WEBPAGE_GOFORWARD = 1; WEBPAGE_GOHOME = 2; WEBPAGE_SEARCH = 3; WEBPAGE_REFRESH = 4; WEBPAGE_STOP = 5; var UrlPage, HtmlPage, HtmlTextPage: TWizardPage; WebHWND1, WebHWND2, WebHWND3, WebHWND4: HWND; WebHWND_Browser: HWND; Form_Browser: TForm; AddrEdit: TNewEdit; GoBtn: TNewButton; function InitializeSetup(): Boolean; begin InitWebCtrl(); WebHWND1 := 0; WebHWND2 := 0; WebHWND3 := 0; WebHWND4 := 0; Result := True; end; procedure DeinitializeSetup(); begin UninitWebCtrl(); end; procedure GoBackBtnOnClick(Sender: TObject); begin WebPageAction(WebHWND_Browser, WEBPAGE_GOBACK); end; procedure GoForwardBtnOnClick(Sender: TObject); begin WebPageAction(WebHWND_Browser, WEBPAGE_GOFORWARD); end; procedure StopBtnOnClick(Sender: TObject); begin WebPageAction(WebHWND_Browser, WEBPAGE_STOP); end; procedure RefreshBtnOnClick(Sender: TObject); begin WebPageAction(WebHWND_Browser, WEBPAGE_REFRESH); end; procedure HomeBtnOnClick(Sender: TObject); begin WebPageAction(WebHWND_Browser, WEBPAGE_GOHOME); end; procedure GoBtnOnClick(Sender: TObject); begin DisplayHTMLPage(WebHWND_Browser, AddrEdit.Text); end; procedure BrowserFormResize(Sender: TObject); var W: Integer; begin WebWndSetBounds(WebHWND_Browser, 0, ScaleY(35), Form_Browser.ClientWidth, Form_Browser.ClientHeight - ScaleY(35)); W := Form_Browser.Width - ScaleX(285); if W <= 0 then W := 1; AddrEdit.Width := W; GoBtn.SetBounds(AddrEdit.Left + AddrEdit.Width + ScaleX(2), ScaleY(5), ScaleX(30), WizardForm.CancelButton.Height); end; procedure EditKeyPress(Sender: TObject; var Key: Char); begin if Key = #13 then DisplayHTMLPage(WebHWND_Browser, AddrEdit.Text); end; procedure WizardBtnOnClick(Sender: TObject); var ScreenWidth, ScreenHeight: Integer; Btn: TNewButton; begin Form_Browser := TForm.Create(WizardForm); try Form_Browser.Caption := 'ThinBrowser'; Form_Browser.BorderIcons := [biSystemMenu, biMaximize]; ScreenWidth := GetSystemMetrics(SM_CXSCREEN); ScreenHeight := GetSystemMetrics(SM_CYSCREEN); Form_Browser.SetBounds((ScreenWidth - ScaleX(600)) div 2, (ScreenHeight - ScaleY(400)) div 2, ScaleX(600), ScaleY(400)); WebHWND_Browser := NewWebWnd(Form_Browser.Handle, 0, 0, Form_Browser.ClientWidth, Form_Browser.ClientHeight); SetWindowLong(Form_Browser.Handle, GWL_EXSTYLE, GetWindowLong( WebHWND_Browser, GWL_EXSTYLE) or WS_EX_CLIENTEDGE); Btn := TNewButton.Create(Form_Browser); Btn.SetBounds(ScaleX(5), ScaleY(5), ScaleX(40), WizardForm.CancelButton.Height); Btn.Caption := '&Back'; Btn.OnClick := @GoBackBtnOnClick; Btn.Parent := Form_Browser; Btn := TNewButton.Create(Form_Browser); Btn.SetBounds(ScaleX(47), ScaleY(5), ScaleX(55), WizardForm.CancelButton.Height); Btn.Caption := '&Forward'; Btn.OnClick := @GoForwardBtnOnClick; Btn.Parent := Form_Browser; Btn := TNewButton.Create(Form_Browser); Btn.SetBounds(ScaleX(104), ScaleY(5), ScaleX(40), WizardForm.CancelButton.Height); Btn.Caption := '&Stop'; Btn.OnClick := @StopBtnOnClick; Btn.Parent := Form_Browser; Btn := TNewButton.Create(Form_Browser); Btn.SetBounds(ScaleX(146), ScaleY(5), ScaleX(50), WizardForm.CancelButton.Height); Btn.Caption := '&Refresh'; Btn.OnClick := @RefreshBtnOnClick; Btn.Parent := Form_Browser; Btn := TNewButton.Create(Form_Browser); Btn.SetBounds(ScaleX(198), ScaleY(5), ScaleX(40), WizardForm.CancelButton.Height); Btn.Caption := '&Home'; Btn.OnClick := @HomeBtnOnClick; Btn.Parent := Form_Browser; AddrEdit := TNewEdit.Create(Form_Browser); AddrEdit.Left := ScaleX(240); AddrEdit.Top := ScaleY(6); AddrEdit.Parent := Form_Browser; AddrEdit.Text := 'about:blank'; AddrEdit.OnKeyPress := @EditKeyPress; GoBtn := TNewButton.Create(Form_Browser); GoBtn.Caption := '&Go'; GoBtn.OnClick := @GoBtnOnClick; GoBtn.Parent := Form_Browser; BrowserFormResize(Form_Browser); Form_Browser.OnResize := @BrowserFormResize; Form_Browser.ActiveControl := AddrEdit; Form_Browser.ShowModal(); FreeWebWnd(WebHWND_Browser); finally Form_Browser.Free(); end; end; procedure InitializeWizard(); var State: DWord; s: string; BrowserBtn: TNewButton; begin State := 0; s := ''; // 如果需要进行网址连接测试，取消下面代码的注释 // s := 'http://www.google.cn'; if CheckConnectState(s, State) then MsgBox('网络已经连接。', mbInformation, MB_OK) else MsgBox('网络未连接。', mbCriticalError, MB_OK); MsgBox(inttostr(State), mbInformation, MB_OK); ExtractTemporaryFile('wizard.htm'); ExtractTemporaryFile('file.htm'); ExtractTemporaryFile('1.gif'); ExtractTemporaryFile('2.gif'); ExtractTemporaryFile('3.gif'); WebHWND1 := NewWebWnd(WizardForm.WelcomePage.Handle, 0, 0, WizardForm.WizardBitmapImage.Width, WizardForm.WelcomePage.Height); DisplayHTMLPage(WebHWND1, ExpandConstant('{tmp}/wizard.htm')); UrlPage := CreateCustomPage(wpWelcome, '测试 Web 页面', '网址: http://www.google.cn'); HtmlPage := CreateCustomPage(UrlPage.ID, '测试 HTML文件页面', '文件: file.htm'); HtmlTextPage := CreateCustomPage(HtmlPage.ID, '测试 HTML文本页面', '临时自定义 HTML 字符串'); BrowserBtn := TNewButton.Create(WizardForm); BrowserBtn.Left := WizardForm.ClientWidth - WizardForm.CancelButton.Left - WizardForm.CancelButton.Width; BrowserBtn.Top := WizardForm.CancelButton.Top; BrowserBtn.Width := WizardForm.CancelButton.Width; BrowserBtn.Height := WizardForm.CancelButton.Height; BrowserBtn.Caption := '&Browser...'; BrowserBtn.OnClick := @WizardBtnOnClick; BrowserBtn.Parent := WizardForm; end; procedure CurPageChanged(CurPageID: Integer); begin if CurPageID = wpWelcome then WebWndSetParent(WebHWND1, WizardForm.WelcomePage.Handle) else if CurPageID = wpFinished then WebWndSetParent(WebHWND1, WizardForm.FinishedPage.Handle) else if (CurPageID = UrlPage.ID) and (WebHWND2 = 0) then begin WebHWND2 := NewWebWnd(UrlPage.Surface.Handle, 0, 0, UrlPage.Surface.Width, UrlPage.Surface.Height); DisplayHTMLPage(WebHWND2, 'http://www.google.cn') end else if (CurPageID = HtmlPage.ID) and (WebHWND3 = 0) then begin WebHWND3 := NewWebWnd(HtmlPage.Surface.Handle, 0, 0, HtmlPage.Surface.Width, HtmlPage.Surface.Height); DisplayHTMLPage(WebHWND3, ExpandConstant('{tmp}/file.htm')); end else if (CurPageID = HtmlTextPage.ID) and (WebHWND4 = 0) then begin WebHWND4 := NewWebWnd(HtmlTextPage.Surface.Handle, 0, 0, HtmlTextPage.Surface.Width, HtmlTextPage.Surface.Height); DisplayHTMLStr(WebHWND4, '<b>I''m a <u>HTML text</u></b>'); end; end;

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