Recently i started a project with so many forms , frames and extra controls, so my application was swelling up and i am using 3 exes in my projects(all made in Delphi 2009) and these applications are also sharing same frames and forms. so i used dlls to share these forms. but a problem came saying different Tfont error. so i refferd on...
Hello! Lets me ask a very specific question: What is the difference (in memory usage) when you have a large array, or large list of the same size (implemented with pointers). e.g var a:array[1..1000000] of integer; and type po=^p1; p1=record v:integer; next:po; end; var p:po; and you create list with 1000000 integ...
Hi experts: There is a hash pas file http://gpdelphiunits.googlecode.com/svn-history/r4/trunk/src/GpStringHash.pas We can create hash and add key - value Question 1: We want to know how to iterate key - value and copy data to listview. Question 2: is there a way to fast copy like assign method to it? Thank you very much in advance...
My problem is a simple one. I've created a class library for Delphi 2007 and added the modelling support to it that Delphi offers. It generates nice class overviews of my code, which I'd like to use. But it's not enough. I want to export the generated UML to Altova's UModel to generate some additional documentation and nicer-looking mode...
Hi, Im looking for a delphi component that looks and functions like the Windows 7 control panel buttons when you "view by category". Anybody know if something like this already exists? ...
Hi, i want to show a popupmenu when click a button. but this procedure has error in Delphi XE. procedure ShowPopupMenuEx(var mb1:TMouseButton;var X:integer;var Y:integer;var pPopUP:TPopupMenu); var popupPoint : TPoint; begin if (mb1 = mbLeft) then begin popupPoint.X := x ; popupPoint.Y := y ; p...
Hi, I need to work on XML files using Delphi. I want to present the xml data in a DBGrid to the user and save the changes done by user in the XML file. For example in the below xml (which was presented to the user), if user changed City of ABC under client and added a new customer with NickName as "AAA" those changes should be reflec...
Hi, how i can to to set background image to TListview in Delphi XE?? i want to make a application like Windows Explorer. ...
For my last project i was using many frames in my delphi application ,so i dicided to create dlls and put them inside the dlls(ALL created in Delphi) i have gone through many websites and came up with the code that works but for that example i have to compile both apps and dlls with build with runtime packages which means i have to dist...
In other languages like C++, you have to keep track of the array length yourself - how does Delphi know the length of my array? Is there an internal, hidden integer? Is it better, for performance-critical parts, to not use Length() but a direct integer managed by me? ...
I have the following code, but it doesn't display the jpg in the TImage: sf := TfrmSplash.Create(nil); ms := TMemoryStream.Create; try bf := TBlobField(dbfuncs.tblBlobs.FieldByName('BBlob')); bf.SaveToStream(ms); ms.Position := 0; sf.imgDisplay.Picture.Graphic.LoadFromStream(ms); sf.Show; Sleep(2000); fin...
i've been trying to get some modeless forms in my application to appear on the taskbar - taking advantage of the new useful taskbar in Windows 7. There's are many issues with the VCL that need to be undone before a form can exist on the taskbar. But the final issue is that minimizing the form that the VCL has designated the main form c...
Is it possible to think to have in future an automatic garbage collector in Delphi? There are many applications in which a higly detailed control on when to free an object is not so important and it is just an extra thing to care about. For such applications having a kind of garbage collector that works like java's one would be interest...
i have created a dll with tframe . how can i load it inside my application, i dont like to use bpls , i only want to destribute exe and dlls with my app ...
I used the XML Binding Wizard to create a descendant of TXMLDocument. The files generated by this class would declare the namespace in the root node and create just plain, unadorned nodes for the rest of the document. <?xml version="1.0"?> <RootNode xmlns="URL" xmlns:xsi="URL" xsi:schemaLocation="URL"> <SomeNode> <AnotherNod...
i want my own pascal code to be executed it also have some uses files and other complex functions just like a Delphi code can i do this ...
In Delphi, if I have a variable myObject : MyClass, and MyClass has a property that is a fixed-length array with 300 integers in it, when will the memory for it be allocated? When the scope of myObject is entered? When I call myObject := MyClass.Create; (constructor)? ...
I made a database with paradox 7. The usual search I do is a syntax like this: Table.Filter := 'Country=' + QuotedStr(Edit.Text); This returns rows those country field is same as the entered text in edit. when I want to search for countries are beginning by "L" i use this syntax: Table.Filter := 'Country=' + QuotedStr(Edit.Text + '*'...
i'm trying to test an object by passing a mock owner. Originally PartD would be passed a PartB1 as its owner: PartD partD = new PartD(partB1); Now i want to test a feature of PartD by passing it a mock owner: PartD partD = new PartD(mockPartB1); This works okay, except there are things PartD does that depends on it knowing some sta...
Question: i want to split two classes out to their own file, while avoiding circular references. i have a unit with some classes (and some enumerations and constants). Anyone will recognize Click and Clack the tappet brothers: unit Cartalk; interface type TSolution = (solTransmission, solBrakes, solGremlins); TTappetBrothe...