Several Dumb Questions...

Ok, first of all how do you terminate a program with the push of a button?

How do you launch a program independant of yours (if you know the path)

And last of all, is there any way to give the ie web browser a pre set background to use if one's not specified? I'm doing virtual desktops and I'd like to be able to add backgrounds.

Thanks

Q1:

If you want to close an application by knowing it's exe file path name:

Code:

---

Private Declare Function ProcessFirst Lib "kernel32" _
Alias "Process32First" (ByVal hSnapshot As Long, uProcess _
As PROCESSENTRY32) As Long

Private Declare Function ProcessNext Lib "kernel32" _
Alias "Process32Next" (ByVal hSnapshot As Long, uProcess As _
PROCESSENTRY32) As Long

Private Declare Function CreateToolhelpSnapshot Lib "kernel32" _
Alias "CreateToolhelp32Snapshot" (ByVal lFlags As Long, _
lProcessID As Long) As Long

Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject _
As Long) As Long

Private Declare Function OpenProcess Lib "kernel32" (ByVal _
dwDesiredAccess As Long, ByVal bInheritHandle As Long, _
ByVal dwProcessId As Long) As Long

Private Declare Function TerminateProcess Lib "kernel32" _
(ByVal hProcess As Long, ByVal uExitCode As Long) As Long



Type PROCESSENTRY32
    dwSize As Long
    cntUsage As Long
    th32ProcessID As Long
    th32DefaultHeapID As Long
    th32ModuleID As Long
    cntThreads As Long
    th32ParentProcessID As Long
    pcPriClassBase As Long
    dwFlags As Long
    szexeFile As String * MAX_PATH
    End Type


Public Function KillApp(myName As String) As Boolean
    Const PROCESS_ALL_ACCESS = 0
    Dim uProcess As PROCESSENTRY32
    Dim rProcessFound As Long
    Dim hSnapshot As Long
    Dim szExename As String
    Dim exitCode As Long
    Dim myProcess As Long
    Dim AppKill As Boolean
    Dim appCount As Integer
    Dim i As Integer
    On Local Error GoTo Finish
    appCount = 0
   
    Const TH32CS_SNAPPROCESS As Long = 2&
   
    uProcess.dwSize = Len(uProcess)
    hSnapshot = CreateToolhelpSnapshot(TH32CS_SNAPPROCESS, 0&)
    rProcessFound = ProcessFirst(hSnapshot, uProcess)
   
    Do While rProcessFound
        i = InStr(1, uProcess.szexeFile, Chr(0))
        szExename = LCase$(Left$(uProcess.szexeFile, i - 1))
        If Right$(szExename, Len(myName)) = LCase$(myName) Then
            KillApp = True
            appCount = appCount + 1
            myProcess = OpenProcess(PROCESS_ALL_ACCESS, False, uProcess.th32ProcessID)
            AppKill = TerminateProcess(myProcess, exitCode)
            Call CloseHandle(myProcess)
        End If
        rProcessFound = ProcessNext(hSnapshot, uProcess)
    Loop

    Call CloseHandle(hSnapshot)
Finish:
End Function


Usage

Call KillApp("C:\program.exe")

---

Q2:

Use the Shell function.

Code:

---

Shell "C:\program.exe", 1

---

Or you can use the ShellExecute API function to launch a file with it's associated application.

Code:

---

Private Declare Function ShellExecute _
Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As _
Long, ByVal lpOperation As String, ByVal lpFile As String, _
ByVal lpParameters As String, ByVal lpDirectory As String, _
ByVal nShowCmd As Long) As Long

Private Const SW_SHOWNORMAL = 1


Usage

ShellExecute Me.hwnd, vbNullString, "C:\program.exe", _
vbNullString, "c:\", SW_SHOWNORMAL

---

1.

Code:

---


Private Sub Command1_Click()
 dim f as Form
 
  For Each f in Forms
   
    Unload f
 
  Next f

End sub

---

2.

Code:

---


Shell "C:\Windows\Notepad.exe"

---

3. Not sure what exactly you are asking, but don't think I would know the answer anyway. ;)

1. to terminate a program with the push of a button:

In the click event of the button:

Code:

---

Dim MyForm as Form

For each MyForm in Forms
    Unload MyForm
    Set MyForm = Nothing
Next ' MyForm

---

2. to launch a program independent of yours:

Code:

---

Shell ("application_path_and_name")
Shell ("C:\WINNT\system32\Notepad.exe")

---

2b. to launch a file with a program

Code:

---

Shell ("file_path_and_name application_path_and_name")
Shell ("C:\My Documents\MyFile.txt C:\WINNT\system32\Notepad.exe")

---

Don't know about #3

Hope that helps!

[Edited by seaweed on 01-04-2001 at 08:40 PM]