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Creating a window by using the API

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The attached code (Create Window.zip) demonstrates how to use the CreateWindowEx API function to create a window and controls inside it.
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Explore and create desktops

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Desktop Explorer demonstrates get a list of active window stations and any desktops attached to them. The program also allows the user to create a new desktop and launch programs on it. Depending on the user's version of Windows and security settings it won't be possible to detect/access all window stations and desktops.
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How to create a console application

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The attached program demonstrates how to create a console and write to/read from it. Also demonstrated is how to get/set properties such as the window title.

When compiled, Visual Basic 5/6 applications that use a console, are considered to be GUI applications and are treated as such. To solve this, use the linker as follows:
path of Visual Basic\Link.exe /EDIT /SUBSYSTEM:CONSOLE executable

Reading the memory of another process

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The attached program demonstrates how to read the memory of another process. The user can either launch a new process or specify the process id of a running process. The result is saved in a file.
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Word Wrap

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a basic WordWrap program i created or modified from various source codes found on the InterNet .

it does not do a 100% percent job on every type of Text entered,
so please feel free to help improve this Source Code to handle every combination of Characters/Numbers/Etc.

Attachment 93469
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Client/Server a raw TCP client (Winsock example.)

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Client/Server is a program that demonstrates how to use winsock to make raw TCP connections to a server and how to accept connections from a client. The program allows the user to send and receive data. Non printable characters are displayed as escape sequences and can also be entered as such. Here is one easy way to try this program:

1. Start two instances of the program.
2. Select "client mode" for one instance and "server mode" for the other.
3. Specify an ip address/host name and port to listen to for the server, then select "Listen" in the "Monitor" menu.
4. Specify a remote ip address/host name and port to connect to for the client, then select "Connect" in the "Client" menu.
5. You should now be able to send data between the two instances of the program through winsock.
Attached Files

Code for a four point transformation of an image

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This code can be used to manipulate an image into any space defined by four corners. Unlike an affine-transform (3 point transformation) which uses a parallelogram shaped space, this 4 point transformation can use absolutely any generic shape that can be defined by four points. Below is this code, split into the two files that I ended up using.

Code for DPointType.bas
Code:

Public Type DPOINT
X As Double
Y As Double
End Type

Code for FourPointTransform.cls
Code:

'Requires DPointType.bas

'The Points array holds 4 points. Below is an explanation of each point.
'Points(0) is the position that a rectangle's upper left point is mapped to.
'Points(1) is the position that a rectangle's upper right point is mapped to.
'Points(2) is the position that a rectangle's lower left point is mapped to.
'Points(3) is the position that a rectangle's lower right point is mapped to.

Friend Function X2(ByVal X As Double, ByVal Y As Double, ByVal ImgWidth As Double, ByVal ImgHeight As Double, _
ByRef Points() As DPOINT) As Double
Dim a As Double
Dim b As Double
Dim c As Double
Dim d As Double
b = (Points(1).X - Points(0).X) / (ImgWidth - 1)
d = Points(0).X
c = (Points(2).X - Points(0).X) / (ImgHeight - 1)
a = (Points(3).X - (ImgHeight - 1) * c - d - (ImgWidth - 1) * b) / ((ImgWidth - 1) * (ImgHeight - 1))
X2 = X * (Y * a + b) + Y * c + d
End Function

Friend Function Y2(ByVal X As Double, ByVal Y As Double, ByVal ImgWidth As Double, ByVal ImgHeight As Double, _
ByRef Points() As DPOINT) As Double
Dim a As Double
Dim b As Double
Dim c As Double
Dim d As Double
b = (Points(2).Y - Points(0).Y) / (ImgHeight - 1)
d = Points(0).Y
c = (Points(1).Y - Points(0).Y) / (ImgWidth - 1)
a = (Points(3).Y - (ImgHeight - 1) * b - (ImgWidth - 1) * c - d) / ((ImgHeight - 1) * (ImgWidth - 1))
Y2 = Y * (X * a + b) + X * c + d
End Function

Use the above class to transform an image in one picture box into a random shape in a second picture box, using the sample code below:
Code:

Private Sub TransformImage()
dim Xfrm as new FourPointTransform
dim Points(3) as DPOINT
Points(0).X=100 : Points(0).Y=20
Points(1).X=300 : Points(1).Y=45
Points(2).X=115 : Points(2).Y=200
Points(3).X=290 : Points(3).Y=230
for y = 0 to Picture1.Height-1
for x = 0 to Picture1.Width-1
u = Xfrm.X2(X, Y, Picture1.Width, Picture1.Height, Points)
v = Xfrm.Y2(X, Y, Picture1.Width, Picture1.Height, Points)
Picture2.pset(u,v),Picture1.point(x,y)
next x
next y
End Sub

Or use the above class to transform a portion of an image defined by any random 4-point shape in one picture box to fit correctly into a second picture box. This is the inverse of the above transformation. The code is very similar to the above, with just a few changes. See the code below
Code:

Private Sub InverseTransformImage()
dim Xfrm as new FourPointTransform
dim Points(3) as DPOINT
Points(0).X=100 : Points(0).Y=20
Points(1).X=300 : Points(1).Y=45
Points(2).X=115 : Points(2).Y=200
Points(3).X=290 : Points(3).Y=230
for y = 0 to Picture2.Height-1
for x = 0 to Picture2.Width-1
u = Xfrm.X2(X, Y, Picture2.Width, Picture2.Height, Points)
v = Xfrm.Y2(X, Y, Picture2.Width, Picture2.Height, Points)
Picture2.pset(x,y),Picture1.point(u,v)
next x
next y
End Sub

[VB6] Function Wait (non-freezing & non-CPU-intensive)

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This routine waits for the specified amount of time without freezing the GUI or raising up the CPU usage.

Code:


Private Type MSG
    hWnd    As Long
    Message As Long
    wParam  As Long
    lParam  As Long
    Time    As Long
    Pt_X    As Long
    Pt_Y    As Long
End Type

Private Declare Function
KillTimer Lib "user32.dll" (ByVal hWnd As Long, ByVal nIDEvent As Long) As Long
Private Declare Function
PeekMessage Lib "user32.dll" Alias "PeekMessageW" (ByRef lpMsg As MSG, ByVal hWnd As Long, ByVal wMsgFilterMin As Long, ByVal wMsgFilterMax As Long, ByVal wRemoveMsg As Long) As Long
Private Declare Function
SetTimer Lib "user32.dll" (ByVal hWnd As Long, ByVal nIDEvent As Long, ByVal uElapse As Long, Optional ByVal lpTimerFunc As Long) As Long
Private Declare Function
WaitMessage Lib "user32.dll" () As Long

'This routine waits for the specified amount of time before resuming with the next line of code
Public Function Wait(ByVal Milliseconds As Long) As Boolean
    Const
PM_QS_POSTMESSAGE = &H980000, WM_TIMER = &H113&
    Dim TimerID As Long, M As MSG

    TimerID = SetTimer(0&, App.ThreadID, Milliseconds)
    If TimerID Then
        Do
:  Wait = WaitMessage
            If PeekMessage(M, -1&, WM_TIMER, WM_TIMER, PM_QS_POSTMESSAGE) Then If M.wParam = TimerID Then Exit Do
        Loop Until
DoEvents < 0
        TimerID = KillTimer(0&, TimerID):    Debug.Assert TimerID
    End If
End Function


The attached Form demonstrates usage of this simple function.
Attached Files

[VB6] Shell & Wait

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The module included in the attachment contains 3 routines that supplements VB's intrinsic Shell function by waiting for the shelled program to terminate before resuming with the next line of code without blocking other events from firing. The accompanying Form demonstrates usage of each function.

The Shell_n_Wait function augments the native Shell function by waiting for the shelled process until it exits. It also auto-expands environment variables before relaying them to Shell. Instead of retrieving the Process ID/Task ID, Shell_n_Wait returns the terminated process' Exit Code.

The ShellW function is probably the most flexible yet easy-to-use shelling routine ever coded. It accepts Unicode paths to executables or documents (registered file types). Paths can be fully qualified or relative and may contain navigational elements ("." or ".."), environment variables and/or arguments/parameters. The window style (normal, minimized, maximized, hidden, etc.) can be optionally requested. It features the ability to wait for the shelled program indefinitely or exactly as specified. Its return value depends on whether the shelled process is still alive or not. If the process still exists, it retrieves the Process ID, otherwise it returns the Exit Code.

The ShellWS function wraps the Windows Script Host's Run method as shown below:

Code:


'Runs a program in a new process.
Public Function ShellWS(ByRef Command As String, Optional ByVal WindowStyle As VbAppWinStyle = vbNormalFocus, _
                                                Optional ByVal WaitOnReturn As Boolean) As Long
    #Const Referenced = True
    #If Not Referenced Then
        ShellWS = CreateObject("WScript.Shell").Run(Command, WindowStyle, WaitOnReturn)
    #Else
        With New
WshShell
            ShellWS = .Run(Command, WindowStyle, WaitOnReturn)
        End With
    #End If      'Adapted from "Best Shell & Wait (No API's!)" by Matthew Roberts
End Function    'http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=8349&lngWId=1

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Image Monitor

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Image Monitor is a program that captures any image copied to the clipboard and saves it in a directory specified by the user. It's also a demonstration of how to write vb6 programs that display a system tray icon and balloon tooltips.
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[VB6, VBScript] Open File Location

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This VB6 project and VBScript file provides functionality similar to Windows Vista & 7's "Open file location" context menu for pre-Vista OSes. In Vista & 7, shortcut files have a handy context menu option, that upon clicking, pre-selects that shortcut's target in a new Explorer window. The VB6 project is fully Unicode-aware, capable of accepting Unicode filenames for shortcuts and their targets. It can also deal with Advertised shortcuts. The VBScript file requires an enabled Microsoft Windows Script Host (wscript.exe). To install or uninstall, just open either of the two files without passing any command line parameter. Shown below is the code for the VBScript file.

Code:


Option Explicit

Private Const sKEY = "HKCU\Software\Classes\lnkfile\shell\OpenFileLocation\"
                    'Placing this under HKLM\SOFTWARE\Classes\lnkfile
                    'enables all user profiles to have this context menu.

Private Const sVALUE = "Open &file location"
                    '&f immediately selects this menu unlike the default
                    '&i in Vista which collides with "P&in to Start menu".

Private Const sCMD = "wscript.exe %WINDIR%\OpenFileLocation.vbs ""%1"""
                    'Save this in a file named "OpenFileLocation.vbs" in the
                    '"\WINDOWS" directory, or if preferred otherwise, edit
                    'the location & filename in this constant.


Private Const OFL = "OpenFileLocation"
Private Const CMD = "command\"

Private WSH

Set WSH = WScript.CreateObject("WScript.Shell")

If WScript.Arguments.Count Then    'If arguments were passed to this file, Then
    OpenFileLocation              '    a shortcut file's location was specified
Else                              'Else, no arguments were passed
    InstallUninstallOFL            '    go to Install/Uninstall mode
End If

Set
WSH = Nothing                  'Destroy object

Private Sub OpenFileLocation
    Dim FSO, oShortcut, sFileSpec, sTarget

    On Error Resume Next
  'Get the shortcut file's location
    sFileSpec = WScript.Arguments(0)
  'Instantiate a Shortcut Object
    Set oShortcut = WSH.CreateShortcut(sFileSpec)
  'Retrieve the shortcut's target
    sTarget = oShortcut.TargetPath

    Set FSO = WScript.CreateObject("Scripting.FileSystemObject")
  'If the shortcut points to an existing file or folder
    If FSO.FileExists(sTarget) Then
      'Pre-select that target in a new Explorer window
        WSH.Run "explorer.exe /select,""" & sTarget & """"
    ElseIf FSO.FolderExists(sTarget) Then
      'Short-circuit the preceding expressions instead of using Or
        WSH.Run "explorer.exe /select,""" & sTarget & """"
    Else 'complain, er, inform if it's missing
        WSH.Popup "Could not find:" & vbNewLine & vbNewLine & _
                  """" & sTarget & """", , OFL, vbExclamation
    End If

    Set
FSO = Nothing
    Set
oShortcut = Nothing    'Destroy objects
End Sub

Private Sub
InstallUninstallOFL                          'Install/Uninstall mode
    Dim iButtons, sPrompt

    iButtons = vbYesNoCancel Or vbQuestion Or vbDefaultButton3
    sPrompt = "Do you want to add the ""Open file location"" context menu " & _
              "option to shortcut files?" & vbNewLine & "(Select NO to remove)"

    Select Case MsgBox(sPrompt, iButtons, "Install " & OFL & ".vbs")
        Case vbYes:  InstallOFL
        Case vbNo:  UninstallOFL
    End Select
End Sub

Private Sub
InstallOFL            'Adds the context menu entries to the Registry
    On Error Resume Next
    WSH.RegWrite sKEY, sVALUE, "REG_SZ"
    WSH.RegWrite sKEY & CMD, sCMD, "REG_EXPAND_SZ"

    If Err Then
        MsgBox Err.Description, vbCritical, Err.Source
    Else
        MsgBox "Installed successfully!", vbInformation, OFL
    End If
End Sub

Private Sub
UninstallOFL    'Removes the context menu entries from the Registry
    On Error Resume Next
    WSH.RegDelete sKEY & CMD
    WSH.RegDelete sKEY

    If Err Then
        MsgBox Err.Description, vbCritical, Err.Source
    Else
        MsgBox "Uninstalled successfully!", vbInformation, OFL
    End If
End Sub


Attachment 93817
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Menu Explorer

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Menu Explorer displays a list of menus found in any active windows, and displays the items found these menus. The user can disable/enable these items. Note: there appear to be several types of menus that can't be detected by this program.
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List Processes - Get module and thread information of all processes.

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The attached program demonstrates how to gather detailed module, subsystem and thread information of all active processes. This information is then written to a file.
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List Processes - Get module and thread information of all processes.

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The attached program demonstrates how to gather detailed module, subsystem and thread information of all active processes. This information is then written to a file.

Simple PSD File Generator

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I finally figured out how to do this. It generates a native Photoshop PSD file, 3 channels, 8bits per pixel, 256x256 size image. I set all the header stuff as constants basically (though I didn't use the Const statement, I used Dim, and then set them with var = val type lines farther down, so I could later make routines to set the values at runtime). I set them as constants for now because Photoshop (having originated as Mac software) uses Big Endian number in its main file format. And unlike TIFF where you can set II for Intel format (little endian) or MM for Mac format (big endian), Photoshops files are REQUIRE the multibyte values to be big endian, and conversion routines are not trivial. So I opted (for now) to just create a test image generator program with fixed values for all the multibyte values (which is ALL of the entries in the header, so I have fixed width, fixed height, fixed bitdepth, etc). That's why it's more of a fixed size test image generator than a true graphics software or image converter. Though later I plan to expand this to use the CopyMemory API to create a Little to Big Endian converter so I can change these values at runtime.

This is my program's current code.
Code:

Private Sub Form_Load()
Dim Pix(255, 255, 2) As Byte

For y = 0 To 255
For x = 0 To 255
Pix(x, y, 0) = (x * 4) And 255
Pix(x, y, 1) = (y * 4) And 255
Pix(x, y, 2) = (x \ 64) * 17 + (y \ 64) * 68
Next x
Next y


Dim Sig As String
Dim Ver As Integer
Dim Reserved(5) As Byte
Dim Chan As Integer
Dim PHeight As Long
Dim PWidth As Long
Dim Depth As Integer
Dim PMode As Integer
Dim NullLen As Long
Dim CompMethod As Integer

Sig = "8BPS"
Ver = &H100
Chan = &H300
PHeight = &H10000
PWidth = &H10000
Depth = &H800
PMode = &H300
Open "c:\temp\test.psd" For Binary As #1
Put #1, 1, Sig
Put #1, , Ver
Put #1, , Reserved()
Put #1, , Chan
Put #1, , PHeight
Put #1, , PWidth
Put #1, , Depth
Put #1, , PMode
Put #1, , NullLen
Put #1, , NullLen
Put #1, , NullLen
Put #1, , CompMethod
Put #1, , Pix()
Close #1

End
End Sub


TextBin - Extract text from binary files

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The attached program demonstrates how to extract strings containing only specific characters from a binary file. The project contains a class called TextBinClass and a form TextBinDemoWindow.
The class allows you to specify specific characters and extract these from a binary file. The form contains a demo which shows how to use this class and filter the resulting strings for specific things such as potential .dll references, e-mail addresses, GUIDs and URLs.

The class contains a few speed optimisations such as:
-Using a byte array instead of a string to store the binary data.
-Using the InStrB() function instead of InStr().
-Using the InputB$() function instead of Input$() to read the binary data into a byte array. Using Input$() and StrConv() appears to be slower.

Note:
The term "Unicode" (within the context of this program) simply refers to any string where every other character is a null character.
Attached Files

[VB6] modShellZipUnzip.bas

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Code:


Option Explicit

'Decompresses the contents of SrcZip into the folder DestDir.
Public Function ShellUnzip(ByRef SrcZip As String, ByRef DestDir As String) As Boolean
    Const
FOF_NOCONFIRMATION As Variant = 16

    On Error Resume Next
    With
CreateObject("Shell.Application"'Late-bound
  'With New Shell                          'Referenced

        .NameSpace(CVar(DestDir)).CopyHere .NameSpace(CVar(SrcZip)).Items, FOF_NOCONFIRMATION
    End With

    ShellUnzip = (Err = 0&)
End Function

'Compresses a file or folder. The folder must end in a backslash ("\").
Public Function ShellZip(ByRef Source As String, ByRef DestZip As String) As Boolean
    Const
FOF_NOCONFIRMATION As Variant = 16

    CreateNewZip DestZip

    On Error Resume Next
    With
CreateObject("Shell.Application"'Late-bound
  'With New Shell                          'Referenced

        If Right$(Source, 1&) = "\" Then
            .NameSpace(CVar(DestZip)).CopyHere .NameSpace(CVar(Source)).Items, FOF_NOCONFIRMATION
        Else
            .NameSpace(CVar(DestZip)).CopyHere CVar(Source), FOF_NOCONFIRMATION
        End If
    End With


    ShellZip = (Err = 0&)
End Function

'Creates a new empty Zip file only if it doesn't exist.
Public Function CreateNewZip(ByRef sFileName As String) As Boolean
    Dim
ZipHeader As String * 22

    On Error GoTo 1
    If GetAttr(sFileName) Then Exit Function    'Don't overwrite existing file
1  Err.Clear: Resume 2

2  On Error GoTo 3
    Open sFileName For Binary Access Write As #99
        Mid$(ZipHeader, 1&) = "PK" & Chr$(5&) & Chr$(6&)
        Put #99, 1&, ZipHeader
3  Close #99

    CreateNewZip = (Err = 0&)
End Function


HTML Document Explorer

winsock chat general

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1: how would i go around adding friends to logged in id's and remove friends from friends list .


any answers are acceptable need your idias friends.

Execute with Acess Denied permission

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Hello,
I am impressed by few Antiviruses applications. I am getting 'Access Denied' message on killing them via Process Manager in Windows. So My question is, How can we create such application in VB6 which would be unable to kill by process managers?

If you know please share here.

Thanks
Regards,
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