This course covers the essentials of Visual Basic 6.0 language with features like programming fundamentals, designing UI, file handling, classes and objects, COM fundamentals, creating ActiveX components and connecting to database for data centric applications using ADO (ActiveX Data Objects).
Visual Basic (VB) is a programming environment from Microsoft in which a programmer uses a graphical user interface (GUI) to choose and modify preselected sections of code written in the BASIC programming language.
Visual Basic Syllabus will be as follows…..
Visual basic has a built-in function called Dir which lists files for you, based on options you specify. If you specify a full filename (and path) it will return the filename if the file exists. If the specified file doesn't exist, an empty string "" will be returned.
Often the need arises to get the handle of a window outside your app, at runtime, whether it be to send it a message, hook it, change its appearance, etc. First, to find it you need to know either its class name or caption. Since window captions often change at runtime it is a far safer bet to go with the class name.
Yes and no. For yes, VB strings can hold 16-bit characters and is thus Unicode compatible. The problems come from several directions:
* Strings passed to API are converted to ANSI and vice versa
* Reading a file to a string is done by automatically converting ANSI to Unicode
* The same applies when saving: string is converted to ANSI
* Visual Basic controls are not Unicode aware
VB6 was released in 1998, before mice with wheels were generally available. Due to this, there is no built-in support for the mouse-wheel within most of VB6 (either in VB itself, or in your programs).
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