Public (software) Library
            Copyright 1994 Nelson Ford, PsL ALL RIGHTS RESERVED


=====Visual Basic: DOS Access & System Routines

Also see VB_CTRLS for custom controls and GENERAL for controls, routines and
tools which can be used by VB and other languages.

CONTENTS:

-----DOS_ACCS: DOS access, functions
-----SYSTEM

====================================

-----DOS_ACCS: DOS access, functions

[CRC32]
CRC32 (Simms, Jeff; $0) contains a DLL with source code to calculate CRC32
value of a file.

[DATETIM]
DateTime shows how to get a file's date/time stamp and file size directly
from within Visual Basic without resorting to a shell to DOS DIR command.

[DFINFO]
DFInfo (Mabry Software, reg. fee: $15) is a custom control that provides
disk and file information, including disk space, cluster info, file
size/attributes, etc.

[DIRSCAN]
Dirscan.BAS (Rose, Joel; $0) contains source code for a routine that scans
a system's drives for a particular file or files.

[DISKINFO]
DiskInfo 1.0 is a DLL for Visual Basic which will return the free disk
space of the current drive. (Douglas Marquardt, reg. fee: $0)

[DISKSTF]
Diskstuf.DLL returns the free disk space of any valid drive, as well as the
VOLSTRUCT info. (Douglas Marquardt, reg. fee: $0)

[DRVUTL]
Drive Utilities DLL is a collection of disk and file routines for the VB
programmer. It will provide disk size, cluster size, sector size, and bytes
used and free, which are not available through Visual Basic. It can also
provide file size, date, time and attributes, and allow date, time and
attributes to be changed. (TANSTAAFL Software, reg. fee: $20)

[DSKINFO]
DskInfo (Taylor, Ian; $0) is a DLL that returns information about a
specified drive: free space, total space, total clusters, available
clusters, sectors per cluster and bytes per sector. It also returns free
system resources and memory.

[DSKSPC]
DskSpc (Shields, James; $5) is a DLL which returns total disk space and
free disk space for a user-specified drive.

[FIXDATE]
FixDate contains VB3 source code and an executable that allows the changing
of single, or multiple, file date/time stamps. (Fred L. Freel, reg. fee:
$0)

[FSP]
FSP.DLL (Chris Vardy, reg. fee: $0) returns the number of bytes free on a
given drive.

[FSTAMP]
Fstamp is a small DLL which allows you to change the date and time stamp of
a file from VB or C/C++. (Rick Esterling, reg. fee: $0)

[ISFILE]
Isfile (J. Frank Carr; $0) shows how to use the OpenFile API call to
determine if a file exists or not.

[LABLDLL]
Labeldll (Guimond, Stephen C.; $0) contains a DLL that will allow you to
read, write, and delete DOS volume labels. It will also allow you to get
file and disk information such as total disk space, available disk space,
file date, file time, and size of file. A conversion routine to get plain
English dates and times out of those returned by the DLL is also provided.
Commented Pascal source code is included.

[QSEARCH]
QSearch (Simms, Jeff; $0) is a DLL that lets you search a drive for a file,
search a file for text, and copy a file. Wildcards are supported. A sample
app is included.

[VBDOS]
VBDOS is a DLL that allows you to get free disk space, file information,
and change file attributes. Sample code is included.

[WLIB10]
WingLib 1.0 contains a small DLL that can be called by a Visual Basic
program to obtain the amount of free space on a disk drive. (Silverwing
Systems, reg. fee: $25)


-----SYSTEM

[CDLL_VB]
CDLL_VB (Aylor, Bill; $?) is a TurboC++ DLL for VBWin that illustrates how
to pass a character string from the DLL to VB for processing.

[CLIPDEM]
CLIPDEM demonstrates using the clipboard across forms.

[CTLWHWN]
CtlWhWnd (User Friendly, Inc.; $0) is a DLL function that returns the hWnd
for any control.

[DDEPM]
Doing DDE with Program Manager (Irwin, Gregg S.; $0) contains a module and
sample application to demonstrate the functionality available for creating
Items in Program Manager, retrieving Group and Item information, deleting
items, replacing items, and more.

[ENDTASK]
EndTask (Simms, Jeff; $0) is a DLL that lets you close your app normally
when the user selects End Task from Task Manager.

[EXWAIT]
ExWait demonstrates how to use the Windows GetModuleUsage function to cause
VB to wait until a SHELL command has finished.

[FCC110]
FCC 1.10 (Four Lakes Computing, reg. fee: $95) is a DLL that provides file
caching and disk compression. Features include efficient LRU file caching
which allows block sizes as small as 128 bytes, optional read and write
access to compressed files, direct replacements for Microsoft LZ functions,
and more. VB sample source and an executable demo are included.

[FINDAPP]
Findapp (Obeda, Ed; $0) is a DLL and related VB code that prevents users
from opening more than one copy of your application or of programs such as
Calculator.

[FNDWND]
Fndwnd shows how to look for a window based on Caption and/or ClassName.

[GETWLST]
GetWindowList 1.1 (Steinwart, Todd; $0) is a DLL that lets you get a list
of handles for active, visible windows. Sample usage code is included.

[HLPKEY]
HlpKey (Simms, Jeff; $0) is a DLL and source code which eliminates the need
for separate F1 Help Keypress events.

[INOUT]
InOut (Faggart, B.E.; $0) is a DLL for I/O Port control. Sample VB source
code is included.

[LOCKAPI]
Locker API 1.0 (Hampshire Software; $245) is a software metering DLL. It
allows a programmer to control the number of concurrent users that may
access their windows program. It works on all networks that support DOS
filesharing/filelocking. It also works on local drives.

[LOADTIME]
LoadTime is a text file that tells how to handle slow loading programs to
keep the user from messing things up.

[MHELP]
MHelp (MicroHelp, Inc.; $0) is a DLL with VB versions of PEEK, POKE, INP,
OUT, VARPTR, VARSEG, VARSEGPTR, SADD, SSEG and SSEGADD.

[MODALEX]
Modalex is a DLL that makes a VB app appear modal to the calling app.

[NOGHOST]
NoGhost 1.0 (reg. fee: $0) is a tool which allows VB applications to
respond to Cascade and Tile messages properly. It can be configured to
allow or disallow sizing of the VB application's window, and requires only
5K of memory and one simple call to a DLL function.

[NUMWIN]
NUMWIN.VBX 3.0 (Weimar Software,, reg. fee: $18) is a VB custom control that
makes it easy for you to provide your users with additional programming
features like DDE, OLE, and other custom features which require hWnds of other
application's windows. It can also be used to obtain the hWnd of all VB hWnds
of the running application to enable you to send messages to or manipulate the
other windows in the application in ways VB does not directly allow. .

[PATCHVB]
PatchVB patches your VB programs so they no longer try to invoke Windows
when executed from DOS command line. After patching, they just report "This
program requires Microsoft Windows" and exit. Requires VBRUN300. (Rick
Esterling, reg. fee: $0)

[PATH_VB]
Path demonstrates the use of two API calls to determine the path of an
application. (Not needed for VB3.)

[PEEKB]
PeekB (Harvey, Jim; $0) is a DLL that lets you peek at protected memory.
The DLL source code illustrates how to write a DLL for VB.

[PNTR11]
Pointers.DLL 1.1 (Greg Blaum, reg. fee: $0) is a DLL for VB that contains a
function that returns the Pointer of any variable. It contains
de-referencing functions and sample code.

[RESCHEK]
ResCheck 1.0 (Houck, Dan; $0) is source for checking and displaying GDI and
User Heap information in an icon.

[RUNMODL]
RunModal contains a DLL that will allow you to call any EXE file and have
it run as if it were a modal dialog box from the calling application. Your
VB app can be called as dialog boxes from Word; your apps can call Notepad,
etc. WIN31 is required.

[SI_SDK]
The System Information SDK 1.01 (Snowy Mountain Software; $10) is a DLL and
a Library of VB function calls that enable developers to determine
configuration information about a computer. It can detect computer model,
BIOS manufacturer and date, memory installed, bus type, CPU type and speed,
mouse and drive info, and more. This was designed to be used with Visual
Basic, although another language that can call DLLs can also be used.

[SPCTIME]
Space & Time (Barrett, Paul James; $0) is a DLL that reports free disk
space and will copy the date and/or time to the the Clipboard. C source
code for the DLL is included, but no source code to illustrate calling the
DLL from VB, so you will have to study the C code.

[SYSMENU]
SysMenu (Simms, Jeff; $0) is a DLL that lets you add items to the System
Control Box menu.

[SYSWTCH]
SySwitch 2.03 (Bonner, Paul; $0) is VB source for a utility for changing
Windows configurations.

[TIMFRAM]
TimeFrame (Braeuchi, J.; $0) shows how to display information on the
caption bar of other applications. This example displays the time.

[TOPMOST]
Topmost (Contreras, Mike; $0) contains source for a utility to keep any
specified window on top. This is very useful for keeping the VB2 properties
window visible during program development.

[TXTHOOK]
TxtHook (Simms, Jeff; $0) is a DLL that enhances the Text box. The primary
feature is that text can be left highlighted even when the Text box loses
focus.

[VBFNDID]
VBFindID (Kitsos, Costas; $0) is a utility which can be used to determine
the IDs of VB Controls during design-time.

[VBMEM_S]
VBMem 1.1 (Snider, Charles K.; $0) is source for a VB app that displays
Windows system information: the operating mode, presence of a math chip,
and free memory. Compiled and run minimized, the display will constantly
update the free memory number

[VBPOINT]
VBPoint (Zuck, Jonathan; $0) is a DLL that adds pointer support to VB.
LP2Str$ is a string function that copies data, pointed to by a so-called
"Long Pointer" into a VB proprietary string variable. Str2LP is a
subroutine that will copy data from one address to another. With this
function you can create the CV? and BLOAD commands.

[WINFOVB]
Windows Info (Bonner, Paul; $?) reports the caption, window handle and
class name of the window under the mouse cursor, its parent window, and its
progenitor window. Source code is included.

[WMEM]
Wmem (Buelow, Ron; $?) shows how to create an icon bar that displays system
memory, stays on top, and is moveable.

[WNDFIND]
WndFind (User Friendly, Inc.; $0) solves the problem of needing an exact
match when using the AppActivate command. This can also be used to
determine if your application is already running. Source is included.

[XTASK]
XTask 1.0 (Stam, Pieter; $0) is a DLL that lets you detect when any EXE has
terminated.