remusrigo
New member
- Joined
- Jun 18, 2025
- Messages
- 2
- Programming Experience
- Beginner
Hi all
I am trying to create a screensaver in vb.net but when I want to implement the /c /p parameters, they don't work. The main app, screensaver.exe is renamed to screensaver.scr and when I rightclick Install from the context menu, the Screen Saver Settings appears. If I click on settings or on preview nothing happens (mostly). Some times the config form shows.
- the project is set to x86
- unchecked Application Framework
frmSS is the main form
frmCfg is the config form
modParam is the main module that has the Sub Main()
vbproj:
modParam.vb
log file:
As you can see if a parameter is called, it is redirected to the dll file!!??
Can anyone help me out?
Or redirect me to a tutorial?
I am trying to create a screensaver in vb.net but when I want to implement the /c /p parameters, they don't work. The main app, screensaver.exe is renamed to screensaver.scr and when I rightclick Install from the context menu, the Screen Saver Settings appears. If I click on settings or on preview nothing happens (mostly). Some times the config form shows.
- the project is set to x86
- unchecked Application Framework
frmSS is the main form
frmCfg is the config form
modParam is the main module that has the Sub Main()
vbproj:
XML:
<PropertyGroup>
<OutputType>WinExe</OutputType>
<TargetFramework>net9.0-windows</TargetFramework>
<RootNamespace>TestSS</RootNamespace>
<StartupObject>TestSS.modParam</StartupObject>
<UseWindowsForms>True</UseWindowsForms>
<MyType>WindowsFormsWithCustomSubMain</MyType>
<RunPostBuildEvent>Always</RunPostBuildEvent>
<AssemblyName>$(MSBuildProjectName)</AssemblyName>
<Platforms>x86</Platforms>
</PropertyGroup>
VB.NET:
Imports System.Windows.Forms
Imports System.Runtime.InteropServices
Imports System.Diagnostics
Module modParam
Public Sub Main()
Dim args() As String = Environment.GetCommandLineArgs()
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & "Executable: " & Application.ExecutablePath & vbCrLf)
Dim currentProcess As Process = Process.GetCurrentProcess()
Dim runningProcesses() As Process = Process.GetProcessesByName(currentProcess.ProcessName)
If runningProcesses.Length > 1 Then
Exit Sub
End If
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & "Args: " & String.Join(" ", args) & vbCrLf)
If args.Length > 1 Then
Dim cmd As String = args(1).ToLower()
Select Case cmd
Case "/s"
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - /s triggered" & Environment.NewLine)
Application.Run(New frmCfg())
Case "/c"
Try
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - /c triggered" & Environment.NewLine)
Dim newFrmCfg = New frmCfg()
newFrmCfg.ShowDialog()
Catch ex As Exception
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - /c error: " & ex.Message & Environment.NewLine)
End Try
Application.Exit()
Case "/p"
If args.Length > 2 Then
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - /p triggered" & Environment.NewLine)
Try
Dim previewHwnd As IntPtr = CType(Integer.Parse(args(2)), IntPtr)
Dim newFrmSS = New frmSS(previewHwnd)
Application.Run(newFrmSS)
Catch ex As FormatException
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - Invalid window handle for preview mode" & ex.Message & Environment.NewLine)
Dim newFrmSS = New frmSS()
Application.Run(newFrmSS)
End Try
Else
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - Missing window handle for preview mode" & Environment.NewLine)
Dim newFrmSS = New frmSS()
Application.Run(newFrmSS)
End If
Case Else
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - unkown trigger" & Environment.NewLine)
Application.Run(New frmCfg())
End Select
Else
System.IO.File.AppendAllText("D:\My Projects\Test\bin\TestLog.txt", DateTime.Now.ToString() & " - no trigger" & Environment.NewLine)
End If
End Sub
End Modulelog file:
As you can see if a parameter is called, it is redirected to the dll file!!??
Can anyone help me out?
Or redirect me to a tutorial?
Last edited by a moderator:
