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AddAll Delphi Articles Choosing a ZIP Library for Delphi - 16 April, 2003 - Mark Steinberg Choosing a ZIP Library for Delphi Most of software developers sometimes need to compress data for their projects. ZIP format (PKWARE Inc.) is more frequently used in the world for making archives. The main advantage of ZIP format is its wide... Setting File Summary Information - 11 April, 2003 - Serhiy Perevoznyk Starting with Microsoft Office 6.0, all Office documents have a Summary property sheet in which you can enter the Title, Subject, and Author of the document, along with other qualifying information such as Category, Keywords, and Comments In... Certificate basics - 11 March, 2003 - Eugene Mayevski 1. Definition Two types of encryption algorithms are used - symmetric and asymmetric. Symmetric encryption algorithms deal with one secret key, which is used to both encrypt and decrypt information. Asymmetric algorithms usually deal with a... Introduction to SSL - 11 March, 2003 - Eugene Mayevski 1. The problem Everybody uses network to transfer data, this is obvious. Less obvious is the fact, that the data has value (and cost), and so it is a subject to theft. Types of information that are stolen include personal user's information,... Delphi Memory Monitor - 07 February, 2003 - Vitaly Ignatovich Delphi Memory Monitor The article introduces the following topics How the Manager of Dynamic Memory works in Delphi applications How to reveal errors leading to memory leaking How to use Memory Mapped Files for inter-process communications... Ping without raw sockets - 21 January, 2003 - Serhiy Perevoznyk Windows supports an Internet Control Message Protocol (ICMP) to determine whether or not a particular host is available. ICMP is a network layer protocol that delivers flow control, error messages, routing, and other data between Internet hosts.... Drawing Transparent Bitmaps - 21 January, 2003 - Serhiy Perevoznyk A portion of a graphic image that does not change the contents of the screen is termed "transparent." The DrawIcon function can create an image that contains transparent portions. It is also possible to obtain this functionality using the... Windows taskbar Tips&Tricks - 21 January, 2003 - Serhiy Perevoznyk [delphi] How to press a "Start" button from your program: procedure TForm1.PressStart(Sender: TObject); var hTaskBar, hButton : HWND; hDCScreen : HDC; ScreenHeight : DWORD; begin //find "Start" button hDCScreen := GetDC(0);... Bitmap rotation - 21 January, 2003 - Serhiy Perevoznyk Bitmap rotation is a graphic effect that Delphi does not natively offer. This article shows how to rotate a given image in 90-degree increments. It allows you to rotate any image 0, 90, 180 or 270 degrees. With a little work, the code can be... Drawing a Shaded Rectangle - 21 January, 2003 - Serhiy Perevoznyk The GradientFill function fills rectangle and triangle structures. To add smooth shading to a triangle, call the GradientFill function with the three triangle endpoints. GDI will linearly interpolate and fill the triangle. To add smooth shading... |
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