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  • Download, pause and resume an download using Indy components

    - by Salvador
    Actually i'm using the TIdHTTP component for download a file from internet. i'm wondering if is possible pause and resume the download using this component o maybe another indy component. this is my current code, this works ok for download a file (without resume), but . now i want pause the download close my app ,and when my app restart then resume the download from the last position saved. var Http: TIdHTTP; MS : TMemoryStream; begin Result:= True; Http := TIdHTTP.Create(nil); MS := TMemoryStream.Create; try try Http.OnWork:= HttpWork;//this event give me the actual progress of the download process Http.Head(Url); FSize := Http.Response.ContentLength; AddLog('Downloading File '+GetURLFilename(Url)+' - '+FormatFloat('#,',FSize)+' Bytes'); Http.Get(Url, MS); MS.SaveToFile(LocalFile); except on E : Exception do Begin Result:=False; AddLog(E.Message); end; end; finally Http.Free; MS.Free; end; end;

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  • Implement F3 Find Next using TFindDialog

    - by Pieter van Wyk
    Hi I've implemented a search using the TFindDialog on my form. Everything works well except that I cannot find a way to mimic the "F3 - Find Next" behaviour as in Notepad. Once you have entered a search string, pressing F3 finds the next instance without opening the search dialog. Regards, Pieter.

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  • Locking down RAD Studio internal browser security.

    - by HMcG
    I use Firefox as my web browser, mostly for access to add-ins such as Flashblock and No-script. I noticed yesterday that the RAD Studio internal browser used for the Welcome Page etc has scripting and Active X etc enabled. Is there a way to disable scripting, or better still, block all access to non-local sources in the built-in browser?

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  • How to make TWebBrower ignore accelerator chars of others controls?

    - by douglaslise
    I have a TWebBrowser placed on a form with the designMode enabled. Bellow the browser I have a close button with the Caption setted to 'Clos&e'. When I am editing the contents of a document inside the WebBrowser and I press the key E the button close is called. It appears that it is treating TWebBrowser like other controls that don't handle keys (e.g. TButton). How can I solve this? Thanks in advance.

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  • Avoid painting over nested controls

    - by Cobus Kruger
    I am writing a toolbar-style control and use the ThemeServices unit to paint the background required by the toolbar. Like so: ThemeServices.DrawElement(Canvas.Handle, ThemeServices.GetElementDetails(trRebarRoot), ARect); I then drop child controls onto the toolbar and voila - instant toolbar. Except that every now and again I notice that the nested (child) controls don't repaint as well. So my control paints its background and the child controls disappear until you move the mouse over them. Some of the edit controls show their client area (no border) and some of them are just gone altogether. This happens mostly when I place a window from another application over the toolbar and move it away. I keep thinking this has to be very easy to cure, that perhaps I'm somehow preventing the paint message from reaching the child controls, or missing an override but I have been unable to figure it out.

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  • There are another way to load MSHTML documents without use Application.ProcessMessages?

    - by douglaslise
    There are another way to load MSHTML documents without use Application.ProcessMessages? To load a document into a IHTMLDocument I need to do this: while Doc.readyState <> 'complete' do Application.ProcessMessages; I want not to process all the message queue during the loading, because I would be changing my application flow, in other words, some messages that should be processed after the loading to be completed can be processed earlier, even before the loading end. There is a special message code that the IHTMLDocument expect to advance in the loading process? Or there is another way to load? Thanks.

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  • TserverSocket and TClientSocket

    - by Georgi Gavrilski
    I use this code to reveive data : But It's not work.Can you Help me ? procedure TForm1.ServerSocket1ClientRead(Sender: TObject; Socket: TCustomWinSocket); var i:integer; sRec : string; begin for i := 0 to ServerSocket1.Socket.ActiveConnections-1 do begin with ServerSocket1.Socket.Connections[i] do begin sRec:=ReceiveText; if sRec < '' then begin if RemoteAddress='192.168.0.1' then begin if ReceiveText='1' then Btn1.Color:=clNavy; ADOQuery1.Active:=True; end; if RemoteAddress='192.168.0.1' then begin if ReceiveText='2' then Btn1.Color:=clRed; Pnl1.Visible:=True; end; end; end; end; end;

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  • String generation with regex criteria

    - by menjaraz
    I wonder wether it is feasible to implement an optimal string generator Class meeting the following requirements: Generation criteria using regex Lexicographical order enumeration. Count propetry Indexed access I don't feel comfortable with regular expression: I cannot come up with a starting piece of code but I just think of a naive implementation using a TList as a base class and use a filter (Regex) against "brute force" generated string. Thank you.

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  • how to close ie8 tabs

    - by omair iqbal
    this code below is not closing tab in internet explorer 8 if i post wm_close command to Wnd it closes internet explorer but i want to close the current tab not entire 'ieframe' is FindWindowEX(Wnd , 0, 'Frame Tab', nil) supposed to retun handle to ie frame? if yes why is it not closing the current tab in internet explorer thanks in advance var Wnd,WndChild : hwnd; begin Wnd := FindWindow('IEFrame', nil); WndChild := FindWindowEX(Wnd , 0, 'Frame Tab', nil); postmessage(WndChild,wm_close,0,0); end;

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  • How to make TWebBrowser ignore accelerator chars of others controls?

    - by douglaslise
    I have a TWebBrowser placed on a form with the designMode enabled. Bellow the browser I have a close button with the Caption set to 'Clos&e'. When I am editing the contents of a document inside the WebBrowser and I press the key E the button close is called. It appears that it is treating TWebBrowser like other controls that don't handle keys and/or don't accept chars (e.g. TButton). How can I solve this? Thanks in advance.

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  • Indy 10 FTP empty list

    - by Lobuno
    Hello! I have been receiving reports from some of my users that, when using idFTP.List() from some servers (MS FTP) then the listing is received as empty (no files) when in reality there are (non-hidden) files on the current directory. May this be a case of a missing parser? The funny think, when I use the program to get the list from MY server (MSFTP on W2003) everything seems OK but on some servers I've been hitting this problem. Using latest Indy10 on D2010. Any idea?

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  • How to get absolute path from path with system path variables?

    - by The_Fox
    Is there an easy way to translate a path with system path variables to an absolute path? So %ProgramFiles%\Internet Explorer\hmmapi.dll becomes C:\Program Files\Internet Explorer\hmmapi.dll I like to know if there is an API call that can do this, or do I have to do this the hard way and detect %..% sequences and replace them with the appropriate environment variable?

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  • Inherited TShape.Paint does not work after overriding Shape property

    - by DarkWalker
    I'm to code a TExpandedShape class inherited from TShape. TExpandedShape must act like TShape and be able to draw extra shapes: Polygon and Star. Here is my code unit ExpandedShape; interface uses SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls, Forms, Dialogs, ExtCtrls, Windows; type TExpandedShapeType = ( stRectangle, stSquare, stRoundRect, stRoundSquare, stEllipse, stCircle, stPolygon, stStar ); TExpandedShape = class(TShape) private FShape: TExpandedShapeType; FEdgeCount: integer; procedure SetShape(const Value: TExpandedShapeType); procedure SetEdgeCount(const Value: integer); public procedure Paint; override; published property Shape : TExpandedShapeType read FShape write SetShape;// default stPolygon; property EdgeCount : integer read FEdgeCount write SetEdgeCount default 5; end; procedure Register; implementation procedure Register; begin RegisterComponents('Course', [TExpandedShape]); end; // TExpandedShape procedure TExpandedShape.Paint; begin case Shape of stStar : begin {Draw Star} end; stPolygon : begin {Draw Polygon} end; else begin {It is supposed to draw Circle, Rectangle etc, but it does not} inherited; end; end; end; procedure TExpandedShape.SetEdgeCount(const Value: integer); begin FEdgeCount := Value; Repaint; end; procedure TExpandedShape.SetShape(const Value: TExpandedShapeType); begin FShape := Value; Repaint; end; end. So, what is wrong? IMO TShape.Paint checks private value like FShape in case section and then decides what to draw. When inherited Paint method is called in my code it checks FShape value sees default 0 value [stRectangle] in there and draws it. PS: I did solve it with blackmagic way using Shape1 property instead of Shape one and if Shape1 value is not stPolygon or stStar i do like this: begin Shape := TShapeType(Shape1); inherited end; But this option is not really an option. I need a good short nice-looking one.

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  • IMAP + TLS/SSL with synapse ?

    - by azera
    i'm currently trying to add to a software the capability to list unread emails in the user's inbox using imap. After having no success at all using indy10, I discovered synapse which seemed better for what I needed, but I can't find a way to get it working. My problem is with the login (thus I think with the ssl configuration), I can't find a working combination of "FullSSL", "Sock.SSL.SSLType" and "AutoTLS", whetever I do the "Login()" function fails. For the sake of testing, is any of you able to connect to gmail's imap server using synapse, and if yes how ?

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  • Creating same-width hit-zones on MenuItems in ASP.NET 2.0 Menus that include MenuItems added at runt

    - by Cary Jensen
    In an ASP.NET 2.0 application, I want to permit a user to select a MenuItem, even if the user does not click the actual text of the MenuItem, but instead only clicks the highlight area that ASP.NET places around the currently selected MenuItem (represented by the DynamicHoverStyle.BackColor property). Since the BackColor is displayed the same width for each MenuItem in a submenu, based on MenuItem with the longest text, I would like to make the hit-zone (clickable area) of each sub-MenuItem the same width (same at the BackColor area), regardless of how much text is displayed in the in each individual sub-MenuItem. Here's the setup. I am using a Menu on a MasterPage to display a similar menu on each of my pages. Some of the pages suppress this menu, and some of them add addition MenuItems, sometimes to the top level, sometimes adding sub-MenuItems to an existing top-level MenuItem, and sometimes both (adding a MenuItem to the top level and then additional MenuItems as submenuitems to that newly added top level. This menu has a horizontal orientation, and it is dynamic, in that only the top level is initially exposed, and the submenus are displayed when selected. During usability testing, we noticed that users would select a top-level menu item to expose the submenu, and then select a submenu item, but not by necessarily clicking on the submenu item text, but instead clicking on the BackColor area of the submenu item. Since the text of some MenuItems are longer than others, MenuItems with short Text have a rather large BackColor area. When the user clicks on the BackColor area, but not directly on the MenuItem Text, nothing happens, since the user didn't actually click on the submenu item hit zone. Although there are visual cues as to what part of the displayed MenuItem is clickable (the mouse pointer changes to a link cursor when the mouse is positioned on the MenuItem Text, but not when it is only hovering over the BackColor), this behavior confused the users. They highlighted a MenuItem, and clicked it, but nothing happened. I would to make clicking a MenuItem successful, even if the user did not click on the actual Text of the MenuItem, but simply click on the BackColor area. It seems like there should be a property somewhere to control the width of the active area of the displayed MenuItems, but I do not see it. Any suggestions, given that I am creating some of these MenuItems at runtime?

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  • Is there a message generator

    - by Jlouro
    I don’t want to have my messages to the user stored in the application, or in a resource file. By message I mean, those difficult strings that we have to write to tell the user what is going on or wrong in the application at the precise time. Is there a simple message generator? Simple stuff, but as to handle singular/plural and feminine/masculine.

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  • Changing drag cursor in VirtualTreeView

    - by Coder12345
    When using VirtualTreeView drag operation by default is [doCopy,doMove]. Move operation is indicated by arrow pointer with small box and Copy operation is indicated by same pointer icon but with added [+] next to it. By default VT uses copy operation and if you press modifier key (SHIFT key) it modifies operation to move therefore removing the [+] from pointer. Here is what I need: reverse the operations (default would be move, with modifier key pressed - copy) and thus reverse pointer arrow too replace modifier key - CTRL instead of SHIFT read in an event which of the two operations occurred and start copy or move operation Any pointers into right direction(s) appreciated.

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