delphi-2007

问题 Delphi 2007: Whenever I switch to a new pas file the structure viewer displays its class entries in an expanded form. This is very annoying! Is there a way that the classes items are always displayed in a compressed tree view. Chris 回答1: Right click on the "Structure" pane and select "Properties" from the context menu. In the "Explorer Options" dialog, you'll see a "Explorer categories" check list box. For each item in this box, there's a tiny figure (a tree) between the check box and the

问题 I have a TDrawGrid and want to handle clicking on a cell and scrolling through cells with the mouse wheel slightly differently: When scrolling with the mouse wheel, the view shall center on the selected cell, when simply clicking on a cell, the view shall not move (because that'd be confusing). Scrolling with the mouse wheel fires the OnSelectCell event. Clicking on a cell FIRST fires OnSelectCell , followed by OnMouseDown . So I need to figure out if OnSelectCell was triggered by a mouse

问题 I need to get the total physical memory of a system using Delphi 2007. Using GlobalMemoryStatus on a system with 4GB or greater seems to give me errors. In Delphi 2007 GlobalMemoryStatusEx does not exist so I added the function call to my program manually. It returns the memory on my Windows 7 x64 correctly (8GB) but on a Vista x32 system it still returns an incorrect value (should be 4GB on this system but returns 2.9GB). Any Idea what I may be doing wrong? And will the GlobalMemoryStatusEx

问题 I try to increase performance of Delphi 2007 and Codeinsight. In the application there are 483 files added in the DPR file. I don't know if it is imagination but I feel that I got better performance from Codeinsight by simply readd all files in the DPR. I also think (correct me if I'm wrong) that all files that are included in a uses section also should be included in the DPR file for best performance. My question is, does it exists a tool that scan the whole project and give a list what

问题 I'm having a form with certain components whose are having event handlers. Now I would like to move those event handlers (those methods) to a separate unit still being able to assign them to component events through the Object Inspector at design time. Is it possible to make a separate unit only for event methods, so that the Object Inspector allows me to assign them at design time ? Let's say if I would make that unit with a public procedure: unit Unit2; interface procedure ButtonClick

问题 Unit files for standard VCL files like Dialogs, StringUtils etc is never referenced in a projects DPR-file. But when should I add a reference to the DPR-file ? Now I have own sourcefiles and source of own components. What about source files for Ravereport, Devexpress, Indy, Gnostice etc ? I want as fast codeinsight as possible, but of course I do not want to add bloat to the DPR-file. I use Delphi 2007 See also this question for a related issue. Regards 回答1: I always add all my own code units

问题 The TcxRadioGroup component of DevExpress has a very nice way to specify items. You can specify a Caption and a Value (and a Tag) for each TcxRadioGroupItem. The TcxComboBox and the normal TComboBox of Delphi on the other hand use TStrings to store its items. While TStrings can have a Name and an Object, there is no easy way to hook up a name and a value using the form designer of the Delphi IDE. Is there a ComboBox control (preferably from DevExpress) that allows to visually design its items

问题 Leading on from the answer to another question about bugs in the Delphi IDE, does anyone know if there is a way to improve the multi-threaded debugging functionality of the IDE, or if not, at least why it is so bad on occasion? When you have multiple threads within a program, stepping through the code with F7 or F8 can often lead to either very long pauses, or the whole IDE just locks ups. This is especially apparent when you leave or enter a method or procedure. The debugger always seems to

问题 I'm using the CodeGear RAD Studio IDE. In order to test my application with command line parameters I used a few times the "Parameters" field in the "Run -> Parameters" menu. But every time I provide it with a new value, it could not be deleted from the "dropdown box". I need to clean this field (erase all the values), since in some cases there is information on them that I don't want to share with people that occasionally could use my machine. How can I clean this field? 回答1: The Delphi 2007

问题 If I have the following interfaces and a class that implements them - IBase = Interface ['{82F1F81A-A408-448B-A194-DCED9A7E4FF7}'] End; IDerived = Interface(IBase) ['{A0313EBE-C50D-4857-B324-8C0670C8252A}'] End; TImplementation = Class(TInterfacedObject, IDerived) End; The following code prints 'Bad!' - Procedure Test; Var A : IDerived; Begin A := TImplementation.Create As IDerived; If Supports (A, IBase) Then WriteLn ('Good!') Else WriteLn ('Bad!'); End; This is a little annoying but