I'm searching for a way to execute Steam (Steam.exe) and wait for it to be loaded (Not to exited).
I was think a good idea is to list all the child handles and search for a string in the title handles because when steam loads exist a window handle named "Friends", but this is hard to do it for me (APIs) so maybe exist a easy way to wait for a program to load...
Example of what I will do:
' First process
Process.start("Process 1.exe")
' Here will goes an efficient method to wait for application is loaded,
' not sleeping X seconds measuring the loading time or any of that.
' Second process
' Depends on first process fully loaded.
' If first process is not fully loaded (libraries and that) then this process can't run.
Process.start("Processs 2.exe")
UPDATE:
The Main question is how to wait for X process to be loaded, but about the Steam.exe I've noticed too when Steam is loaded tries to read/open some regkeys:
http://img267.imageshack.us/img267/6599/prtscrcapture4u.jpg
Maybe I can do something with code to monitor if one of that RegKeys is accesed?
Something like this?:
Dim RegKey = "HKLM\...blablabla"
Process.start("steam.exe")
While not Regkey.IsAccessed
' Do nothing and wait
Loop
Process.start("Second process.exe")
UPDATE 2:
I'm trying to make a function taking by reference the solution of Amegon, I don't finished the code because I'm getting an error in the line:
Memory = hprocess.PrivateMemorySize64
But I only get the error when I try to launch a "big" application (application that needs much time to load like Photoshop), with "little" apps works good.
Please if someone can help me to simplify/improve the Amegon's solution to make a Generic function and to correct the memory overflow error... Thank you!
This is my code:
' This is the sub that launchs the unfinished function:
Private Sub Launch_Game()
'Wait_For_Application_To_Load("C:\Games\Steam.exe", "-applaunch 0")
Wait_For_Application_To_Load("C:\Program Files\Adobe Photoshop CS6 (64 Bit)\Photoshop.exe")
End Sub
Private Function Wait_For_Application_To_Load(ByVal APP_Path As String, Optional ByVal APP_Arguments As String = Nothing)
Dim File = My.Computer.FileSystem.GetFileInfo(APP_Path)
Process.Start(APP_Path, APP_Arguments)
Timer_CheckCPU.Tag = File.Name.Substring(0, File.Name.Length - 4) ' Photoshop
Timer_CheckCPU.Enabled = True
End Function
Private Declare Function ReadProcessMemory Lib "kernel32" (ByVal hProcess As Integer, ByVal lpBaseAddress As Integer, ByVal lpBuffer As Integer, ByVal nSize As Integer, ByRef lpNumberOfBytesWritten As Integer) As Integer
Private WithEvents Timer_CheckCPU As New Timer
Dim Memory_Value_Changed As Boolean
Dim CPU_Changed As Boolean
Dim CPU_Time As Boolean
Dim Running_Time As Boolean
Private _desiredTime_ms As Integer = 1500
Private Sub Timer_CheckCPU_Tick(sender As Object, ev As EventArgs) Handles Timer_CheckCPU.Tick
Timer_CheckCPU.Enabled = False
Dim pProcess() As Process = System.Diagnostics.Process.GetProcessesByName(Timer_CheckCPU.Tag)
Dim hprocess As Process = pProcess(0)
If hprocess Is Nothing Then
Running = False
Timer_CheckCPU.Enabled = True
Return
End If
Running = True
' Here is the error:
Memory = hprocess.PrivateMemorySize64
' MsgBox(hprocess.PrivateMemorySize64.ToString)
CPUTotal = hprocess.TotalProcessorTime.TotalMilliseconds
If AllConditionsGood() Then
If Not (_countdown.IsRunning) Then
_countdown.Reset()
_countdown.Start()
End If
Dim _elapsed As Integer = _countdown.ElapsedMilliseconds
If _elapsed >= _desiredTime_ms Then
Me.TopMost = True
MsgBox("process loaded")
Return
End If
Else
_countdown.Reset()
End If
Timer_CheckCPU.Enabled = True
End Sub
Private Function AllConditionsGood() As Boolean
If CPU_Time Then Return False
If Memory_Value_Changed Then Return False
If Running_Time Then Return False
Return True
End Function
Private _countdown As New Stopwatch
Private _Running As Boolean = False
Public WriteOnly Property Running() As Boolean
Set(ByVal value As Boolean)
_Running = value
If value Then
Running_Time = False
Else
Running_Time = True
End If
End Set
End Property
Private _CPUTotal As Integer
Public WriteOnly Property CPUTotal() As Integer
Set(ByVal value As Integer)
CPU = value - _CPUTotal 'used cputime since last check
_CPUTotal = value
End Set
End Property
Private _CPU As Integer
Public WriteOnly Property CPU() As Integer
Set(ByVal value As Integer)
If value = 0 Then
CPU_Time = False
Else
CPU_Time = True
End If
_CPU = value
End Set
End Property
Private _Memory As Integer
Public WriteOnly Property Memory() As Integer
Set(ByVal value As Integer)
MemoryDiff = Math.Abs(value - _Memory)
_Memory = value
End Set
End Property
Private _MemoryDiff As Integer
Public WriteOnly Property MemoryDiff() As Integer
Set(ByVal value As Integer)
If value = _MemoryDiff Then
Memory_Value_Changed = False
Else
Memory_Value_Changed = True
End If
_MemoryDiff = value
End Set
End Property
