DOCUMENTATION
Distribution kit creation ??????????:?????? setting.
Introduction.
All that is written in Visual Basic should be fulfilled out of the environment of the developer Visual Basic, ?????? a file Msvbvm.dll. This file contains all subroutines of support and essential elements of control, which are necessary Visual Basic to fulfill anything you like. It enough big file (1,3). But, fortunately, has no value, how many applications Visual Basic the user in one and too fulfills time, all the same in storage one copy of this file is necessary only.
For each user control item in application and for this purpose that is a part of your control item, the user control item file is necessary. These files are rather small - often ????? 30? everyone. As a result that appears necessary for installation of executed files is not by the machine where installation even the elementary executed file Visual Basic, even subjected to compression by means of the master of setting demands 2 or more disks is produced.
The remark: the Developer needs to be convinced that users of its project or a control item have no file Msvbvm50.dll and other files of support since many users Windows 95 and Windows NT will already have these files by the machines. For example, the majority ?????????????? Internet Explorer will already have them, and it is possible to assume that Microsoft it will be soon simple to install this file together with installation of files of an operating system. It strongly reduces the disk space necessary ???? of creation of distribution kits of projects Visual Basic.
And, at last, when fulfills an executed file which contains a user control item, the.ocx-file should be in the system catalog or in one directory with a.exe-file. The master of setting automatically allocates files in ?????????????? a place. (If ??????????????.ocx ?????? can be found, the virtual machine Visual Basic deduces the error report and completes performance.)
Creation of an executed file
The one who before purchase of the copy Visual Basic read what or advertizing about it, probably, heard that the Visual Basic 5-first version Visual Basic which allows to create really executed files. Someone it is possible, is surprised that it means. First of all, prior versions Visual Basic always broadcast the code Visual Basic in a certain r-code. It is an intermediate language which differs from machine code of the microprocessor of Intel. And then the received r-code was line by line interpreted in Intel machine code. But it is not effective. For example, for cycles explicitly it is easier to fulfill ?????????????? in machine code once and not to transform the code each time at loop body performance.
Picture 23-1. Dialog box Make Project.
Only versions Professional and Enterprise have possibility to create really executed files. It it is possible to reach a choice of points File|Make Exe or File|Make ??? and the subsequent button click Options in the dialogue panel Make Project shown on fig. 23-1.
Picture 23-2.C??????? Make.
That will be visible, is shown on fig. 23-2. On this page of the dialogue panel it is possible to add the version information of a control item and about protection of the rights. The tag for the project is here too installed, which user sees representations of an executed file, and the information of a command line if such it is provided.
If there is version Professional or Enterprise, click on bookmark Compile. The screen resulted on fig. 23-3 seems. We walk in turn on all options in this important dialogue panel. Compile to P-Code. Allows to compile the project in the r-code. Though it is fulfilled more slowly, but the necessary disk space can be considerable smaller in comparison with the code compiled in machine code of the microprocessor.
Compile to Native Code. Allows to compile the project, using the native code with ????????????? that is selected by means of the remained buttons. They are described in the following table.
|
The button
|
The description
|
|
Optimize for Fast Code
|
As much as possible increases speed of performance. |
|
Optimize for small Size
|
Minimizes the size. Possibly, by it of powerful benefit before simple usage of a r-code it will not be reached. |
|
No Optimize
|
Compiles without optimization. |
|
Favor Pentium Pro
|
Optimizes the code in such a manner that it is better works on processor Pentium Pro. The code generated with this option, will work and with earlier processors, but on processors 486 and Pentium (even if they use MMX), will work more slowly, than that code, but generated without this option. |
|
Create symbolic Debug Info
|
It is used, when it is necessary to launch the VB-code on a separate debugger, such as one of debuggers of firm NuMega or that are delivered with Microsoft DevStudio components. |
The remark: the Program which fulfills a considerable quantity of cycles, such as, for example, standard tests, amazing acceleration - often even tenfold in comparison with programs on Visual Basic 4 shows. In practice, however, acceleration, possibly, will be much less (often less than 50 percent, sometimes even about 20 percent).
Advanced Optimizations. Pushing of this button displays the dialogue panel Advanced Optimizations shown on the right. It is not recommended to change any options in this panel, installed by default - they only for the big experts VB.
The master of setting
The master of setting is really excellent tool which allows to create distribution kits of applications and control items practically without efforts. It is really independent program which is called Application Setup Wizard. It is possible to launch it, for example, by means of a submenu Visual Basic 5 in menu Start. (We Assume that standard setting then the program of the master of setting will be called VB\setupkit\kitfil32\Setupwiz.exe) is used.
The remark: Before using the master of setting, it is necessary to compile at least at least time the code, and also to save a design file.
When the master of setting is launched, we get on the initial screen of the master of setting which looks, as fig. 23-4.
Let's understand with points the main panel. First of all, here there is a button of help Help which deduces the help file for the master. The button of output Exit in upper the right to a panel corner closes the master of setting. The button of advance Next moves to a following step of the master, and button Back returns to the previous. We click on button Next to pass to the first real screen of the master.
Further descriptions of new points of this screen are resulted.
Project File Text Box. A project file is the name of a file with.vbp extension. It is possible to click on button Browse to open the standard dialogue panel which allows to carry out file search.vbp or.ctl (for a control item).
Rebuild the Protect. The files, which distribution kits form, are independently executable. If it is necessary to create, a separate product anew, it is necessary to mark this option. The master will create automatically a new.ehe-file, or.??? ? if.??? is not found.
Options. Possible options are described in the following table.
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Option
|
The description
|
| Creat a setup Programm |
Informs on that it is required to create the normal setup on floppy disks. If also to install options Generate Dependency File ????? setting will be created by the report containing the information on files which are used by application. |
| Creat Internet Download Setup |
This option is used only for control items ActiveX and creates all necessary files in such a manner that someone on network Internet can use this code. |
| Generate Dependency File Only |
Setting of this option only creates the report containing the information on files which are used by application. |
Usage of the master
For descriptive reasons we assume that it is necessary to create distribution kits two various application:
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The calculator delivered with Visual Basic;
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Control item of numerical data entry field NumericTextBox.
Creation of the distribution kit for the calculator project
Picture 23-3. Page Compile.
Let's begin with the simple project of the calculator which can be found in subdirectory \samples\PGuide\calc directory VB. At first it is necessary to compile this project as it is not delivered in the executed form. So, we load VB and then we compile project Calc.vbp. After that we enter a name and a way to file Calc.vbp and we click on button Next (which it is now accessible). After some time interval necessary for handling of files, we pass to the screen of a step of 3 masters of setting.
Picture 23-4. The initial screen of the master of setting.
In this screen it is necessary to inform the master where to save the distribution kit. For example, we select floppy disks. For this purpose we click on option Floppy Disk. We click by button Next and we get on the screen where we inform the master on type of used diskettes.
Let's click by button Next. The turning out screen, is used only for servers ActiveX is more difficult subject which we did not consider in this book. We click by button Next to pass this screen.
After a small time delay there will be screen File Summary. If to select any of these files and to click by button File Details, the master displays the dialogue panel. It contains the detail information about the selected file. If to click on Summary Details in screen File Summary, we see the dialogue panel with the information.
Let's click by button Next, at a finding in screen FileSummary and we pass to screen Finished.
If now to click by button Finished, the master starts to deduce data panels with messages on actions executable by it (compression of files, calculation of files which are necessary for copying, and so on). When it will be fulfilled, on the screen there will be a data panel similar to those that is resulted on the right. She asks to interpose the first (from two in this case) disks.
And now users can install application, simply placing the first disk of the distribution kit in the disk drive and launching from Windows the program Setup.exe, containing on it.
The program of installation created by the master of setting, corresponds to all standards Windows. Users can change the setting directory; they can watch of a course of performance of process of installation under the chart; and to them it will be informed also when to interpose the next disk. (Besides, by means of function AddRemove in Windows95/Windows NT the application uninstallation is possible.)
Creation of the distribution kit of a control item Creation of the distribution kit of a control item in the master of setting for usage on separate system is in essence similar to creation of the distribution kit of application. So in this section we concentrate on usage of the master for creation of a file of setting Internet Download Setup so that the control item could be used in Internet Explorer.
Let's launch the master. It is necessary to note that we want to create the control item distribution kit so that it could be loaded from Internet or in an intranet. After decision-making to make Interenet-installation we click by button Next and we pass to the following screen.
Let's click by button Next. There will be a following screen. The Microsoft gives an option which allows the user to load only certain standard files, as, for example, a huge file of the virtual machine Visual Basic, necessary for a control item, directly from a Microsoft site at the first usage of a control item in Internet Explorer. It is valid very useful option as if users already have any of necessary files by the machine Internet Explorer it is reasonable enough not to load them anew.
In the core it is all. The remained screens of the master are similar to that we already considered.
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