mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-20 22:02:34 +03:00
51 lines
2.9 KiB
Plaintext
51 lines
2.9 KiB
Plaintext
On Windows, please read this file using WordPad to format lines properly.
|
|
|
|
This directory contains a short example on how to use the Win32 UnZip DLL
|
|
with Visual Basic. The example code consists of a simple dialog form and
|
|
a standard module containing the interface code to call unzip32.dll.
|
|
The code assumes that the unzip32.dll binary is available somewhere on the
|
|
execution path. The easiest way to satisfy this rule is to keep a copy of
|
|
unzip32.dll in the directory where the VB executable is stored, but if
|
|
it's in the command path it should be found.
|
|
NOTE: Whenever a VB program is run from the VB6 IDE, the "path of the VB
|
|
executable" is the path where the IDE program file "VB6.EXE" is stored,
|
|
NOT the storage directory of the VB project file (= result of the App.Path
|
|
property accessed from within the VB program).
|
|
|
|
The example code has been edited last with Visual Basic 6, but should be
|
|
compatible with VB 5. To maintain compatibility with VB5 after having modified
|
|
the example project in VB6, the project file has to be edited using a standard
|
|
text editor (e.g.: Notepad), to remove the line specifying the "Retained"
|
|
property. This property line is not recognized by VB 5 and would prevent
|
|
correct loading of the project in VB 5.
|
|
|
|
This VB example makes use of the "Windows Common Dialogs" ActiveX control
|
|
comdlg32.ocx, supplied with Visual Basic. Unfortunately, there are different
|
|
revisions of this control available which are not binary compatible. In order
|
|
to maintain compatibility of the source code with all available versions of
|
|
comdlg32.ocx, the source files may have to be edited manually after the
|
|
program has been saved from the VB environment on a system containing the
|
|
latest release of comdlg32.ocx:
|
|
|
|
Both vbunzip.frm and vbunzip.vbp should contain a reference line for the
|
|
common dialog ocx reading like:
|
|
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.1#0"; "COMDLG32.OCX"
|
|
^^^
|
|
The important section of this line is the revision number "1.1" (marked by
|
|
the "^^^" signs). On a system with a more recent version of comdlg32.ocx
|
|
installed, this version number is updated to "1.2" (or higher) by VB
|
|
automatically. This number has to be changed back to "1.1" manually,
|
|
otherwise the example code can no longer be used on systems with old versions
|
|
of comdlg32.ocx.
|
|
|
|
When fetching the VB example code from the UnZip source distribution, one
|
|
has to make sure that the files are stored in the correct "DOS/Windows-native"
|
|
text format with "CR-LF" line endings. Visual Basic does not accept Unix style
|
|
text format (LF line terminators) for Form class modules (*.frm) and the
|
|
project file (*.vbp). You may use unzip's -a option to convert the project
|
|
on extraction. If this is a full source distribution, see the Where file for
|
|
where to download the compiled unzip DLL for a specific platform which includes
|
|
this example project in native format for that platform.
|
|
|
|
For more information, see the comments within the VB source.
|