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Poll
What version of Baan have you installed
Baan IV
30%
FP3
3%
FP4
0%
FP5
1%
FP6
2%
FP7
4%
10.2 (incl. 10.2.1)
3%
10.3
6%
10.4
19%
10.5
29%
Other
2%
Total votes: 96

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Dynamic linking
By patvdv at 26 Feb 2008 - 21:56


Dynamic linking

DLLs can be linked to a program script either at compile time or at runtime.

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4GL field sections
By patvdv at 26 Feb 2008 - 21:56

4GL field sections

You use field sections to program actions that you want to be executed for a variety of field events. Field sections consist of a main section and a subsection. The main section specifies the field(s) for which the actions must be executed. The subsections specify when the actions must be executed.

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Function declarations
By patvdv at 26 Feb 2008 - 21:56

Function declarations

For functions programmed within a DLL to be accessible to other programs, they must be declared as external functions � that is, they must be declared with the keyword EXTERN. For example:

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4GL form sections
By patvdv at 26 Feb 2008 - 21:56

4GL form sections

Note

Only the form.all section is relevant to dynamic forms. For dynamic forms, use the group sections instead.

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Function overloading
By patvdv at 26 Feb 2008 - 21:56

Function overloading

When DLLs are dynamically linked at runtime, instead of at compile time, function overloading is possible. This means that an external function contained in a loaded DLL can be replaced by overloading another DLL that contains a function with the same name and arguments.

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Global variables
By patvdv at 26 Feb 2008 - 21:56


Global variables

Variables declared outside any function block are global variables. You can use them in all functions that occur after the variable declaration.

Declaration, initialization, and scope

Point of declaration

Outside the functions.

Syntax of declaration

<type> name

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Static variables
By patvdv at 26 Feb 2008 - 21:56

Static variables

You can declare local variables as static variables. The value of a static variable is saved at the end of the function and is used again the next time the function is called. A static variable is automatically initialized at the start of the program. Normal local variables are undefined at each function call, and are not initialized at first call.

Declaration, initialization, and scope

Point of declaration

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Include files (preprocessor)
By patvdv at 26 Feb 2008 - 21:56


Include files (preprocessor)

To include files, use one of the following statements:

 #include "filename"
#include <filename>

Files included between '<' and '>' are searched for in the directory '$BSE/include<rel.number>'. This directory is reserved for system headers and cannot be used for applications. Normally a file specified between quotes is searched for using the standard file redirection method.

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String constants
By patvdv at 26 Feb 2008 - 21:56


String constants

A string constant is a number of displayable single-byte or multibyte characters enclosed by double quotation marks. A string constant with length zero (that is, an empty string) is indicated by two adjacent quotation marks. To include a double quotation mark within a string constant, you must include two adjacent double quotes. For example:

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Iterations
By patvdv at 26 Feb 2008 - 21:56

Iterations

Iterative statements repeat the associated statements until a specified condition becomes FALSE.

WHILE statement

This statement has the following form:

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