This is probably simple, but I have not found how to do it.
Needing to monitor my C# console application in vs 2015.
The help file for dbMonitor states:
"You can do it by dropping MySqlMonitor on form from toolbox or by creating it manually in code."
But I cannot find out how to create it manually in code.
I am using the PostgreSQL dot connect.
When I run dbMonitor it does not see my processes.
--Joe
I don't know how I missed it:
PgSqlMonitor pgMonitor = new PgSqlMonitor();
pgMonitor.IsActive = true;
Related
I`m trying to create custom HID device with STM32F103C8, IDE that i choose is STM32CubeIDE and the tutorial that i was following is at ST youtube official channel.
ST offers great tool "Device configuration tool" where i can configure microcontroler, and a lot of code based on my configuration will be generated. That generated code has "user code parts" where user creates his logic, and if he needs to reconfigure microcontroller "Device configuration tool" will not remove that parts of code.
Problem:
To configure custom usb HID i need to change code generated by "Device configuration tool" in places where is no place for user code and that changes will be removed if i run "Device configuration tool" again.
Fields that i only can set in "Device configuration tool" are this:
But that is not enough i also need to change CUSTOM_HID_EPIN_SIZE and CUSTOM_HID_EPOUT_SIZE defines which represent amount of bytes device and host send to each other at once, and also if i change the size of "data pack" i will need to change the default generated callback function that receives that data and works with it, for example the tool generates code like this:
{
USBD_CUSTOM_HID_HandleTypeDef *hhid = (USBD_CUSTOM_HID_HandleTypeDef *)pdev->pClassData;
if (hhid->IsReportAvailable == 1U)
{
((USBD_CUSTOM_HID_ItfTypeDef *)pdev->pUserData)->OutEvent(hhid->Report_buf[0],
hhid->Report_buf[1]);
hhid->IsReportAvailable = 0U;
}
return USBD_OK;
}
but i need the pointer to "Report_buf" not the copy of its first 2 elements, and the default generated code pass only copy of 2 first bytes, and i cant change this in "Device configuration tool".
My current solution:
Actually i solved this issue, but i don`t think i solved it the right way and it works. I have changed the template files which are here "STM32CubeIDE_1.3.0\STM32CubeIDE\plugins\com.st.stm32cube.common.mx_5.6.0.202002181639\db\templates"
And also changed files at "STM32CubeIDE_1.3.0\en.stm32cubef1.zip_expanded\STM32Cube_FW_F1_V1.8.0\Middlewares\ST\STM32_USB_Device_Library\Class\HID"
I don`t think this is the right way to do it, does any one know the right way to do this thing ?
I also found same question on ST forum here but it was not resolved.
what you want to achieve is exactly what is explained by st trainer on this link.
https://www.youtube.com/watch?v=3JGRt3BFYrM
Trainer is step by step explaining how to change the code to use the pointer to buffer
if (hhid->IsReportAvailable == 1U)
{
((USBD_CUSTOM_HID_ItfTypeDef *)pdev->pUserData)->OutEvent(hhid->Report_buf);
hhid->IsReportAvailable = 0U;
}
I am toying with the FluidEnter/FluidExit. So in a simple form, here is what I am trying to do:
I created in Main an empty population of agent called Terminal. For now, in Terminal, there is only a fluidEnter connected to a fluidExit (very simple)
enter image description here
Now, on startup, I want to fill this population and set up the proper connections (the terminals are ordered).
So, on startup, I call a function init(), whose body start with Terminal t = add_terminals(); (I have only one terminal for now, just toying with things)
In Main, obviously, I also have a fluidEnter and a fluidExit. I would like to connect the fluidExit of Main to the fluidEnter of the terminal t, and the fluidExit of the terminal t to the fluidEnter of Main, so code (still in init()) looks like
fluidExit.set_fluidEnter(t.fluidEnter);
t.fluidExit.set_fluidEnter(fluidEnter);
I get an exception so obviously, I am doing something wrong. Any idea?
I think the set_fluidEnter function is deprecated or just non-functional.
Instead, you should do:
fluidExit.connect(t.fluidEnter);
So just replace set_fluidEnter with connect... nothing else.
That should do the trick
I was going down the same path as you a couple of months ago. Yes... .connect() works great. It even works as a gate. If it is disconnected, then fluid stops at the exit. Once connected, fluid starts to flow again. It is very slick.
I am trying to call an existing VFP 6 application using Jacob which is a COM bridge for Java.
val vfp = new Application(new ActiveXComponent("VisualFoxPro.Application").getProperty("Application").toDispatch())
vfp.setVisible(false)
try {
vfp.doCmd("do my.exe with myconfig.txt")
} catch {
case t: Throwable => t.printStackTrace
} finally {
vfp.doCmd("close data")
vfp.doCmd("clear all")
vfp.doCmd("clear")
vfp.quit
vfp.safeRelease
}
When there are no error conditions this code executes well and generates the expected .dbfs. The problem is that when an error occurs (.dbf not found, file in use by another user, etc) a GUI window pops up and stops execution of the program until I use the mouse to cancel it. I want this program to run on a server with no user interaction so this won't work.
How can I gracefully handle the errors preferably without making a change to the VFP 6 program?
Since you have the source code for VFP6, I would suggest looking into
SYS(2335,0)
Sys 2335 is used to identify if the program is running in an "unattended" mode, any such popup dialog boxes will throw an error and prevent an actual "hit" ok/cancel/whatever button to continue. This includes popup window prompting user to pick a table.
I'm not positive of when it was made available as I had limited use of it. Like you, when dealing with a COM server under IIS and obviously nobody there to respond.
Start JVM in headless mode, catch HeadlessException or something. Or, write a Java program that will execute your GUI program using Runtime, and restart in a case of parsed errors in console.
We are upgrading from Citrix Metaframe to XenApp, and I need to know if there's a way to programmatically detect if the XenApp Web Plugin v11.0 is already installed on a client machine when it contacts our webserver for login -- this was previously done for the Metaframe Web Client by attempting to instantiate the ICA client in an ASP script, which used the results to determine whether to offer the client as a download/install.
The current code for this detection is:
Set icaObj = CreateObject("Citrix.ICAClient")
The above code does not find the XenApp plugin.
I continued my research after posting this question and I finally found the answer. Only 3 views on this question since I posted it, but despite the disinterest I believe I should answer my question, "Just in Case" someone else has this problem.
I was mistaken in my statement in question that the code I posted didn't find the XenApp plugin. In fact, it does. It returns a valid object in the presence of both Metaframe and XenAppWeb. I posted this question on Citrix's own forums, and no answers there either.
What I did to find the answer was to create a VS2008 project to which I added a COM reference to the Citrix ICA library -- both of them, installed separately one at a time. I found that both had a COM library named WFICALib, and searched through both of them to see if there was something that might distinguish them. What I found was a property, ClientVersion, which was 9.0.xxx for Metaframe, and 11.0.xxxx for XenAppWeb.
BINGO!
From this I cut the following code to return the version as a function in VBScript:
Function GetVer()
Dim icaObj, Ver
On Error Resume Next
Set icaObj = CreateObject("Citrix.ICAClient")
if err.number = 0 then
if IsObject(icaObj) then
GetVer = icaObj.ClientVersion
else
GetVer = 0
end if
set icaObj = nothing
else
GetVer = 0
end if
End Function
ADDENDUM:
Since posting this answer, I have discovered that this script in the newer versions of Internet Explorer (e.g. IE9) is not reliably detecting the plugin -- sometimes it worked, and other times not! What I did to fix the problem was to switch the script to JScript instead of JavaScript, and the new version looks like this:
<script type="text/jscript">
function GetCitrixVersion() {
try {
var icaObj = new ActiveXObject("Citrix.ICAClient");
return icaObj.ClientVersion;
}
catch (e) {
return 0;
}
}
</script>
Note the script type is text/jscript, not text/javascript.
I'm writing an application that can be started either as a standard WinForms app or in unattended mode from the command-line. The application was built using the VS 2k5 standard WinForms template.
When the application is executed from the command-line, I want it to output information that can be captured by the script executing the application. When I do this directly from Console.WriteLine(), the output does not appear, although it can be captured by piping to a file.
On the other hand, I can force the application to pop up a second console by doing a P/Invoke on AllocConsole() from kernel32. This is not what I want, though. I want the output to appear in the same window the application was called from.
This is the salient code that allows me to pop up a console from the command line:
<STAThread()> Public Shared Sub Main()
If My.Application.CommandLineArgs.Count = 0 Then
Dim frm As New ISECMMParamUtilForm()
frm.ShowDialog()
Else
Try
ConsoleControl.AllocConsole()
Dim exMan As New UnattendedExecutionManager(ConvertArgs())
IsInConsoleMode = True
OutputMessage("Application started.")
If Not exMan.SetSettings() Then
OutputMessage("Execution failed.")
End If
Catch ex As Exception
Console.WriteLine(ex.ToString())
Finally
ConsoleControl.FreeConsole()
End Try
End If
End Sub
Public Shared Sub OutputMessage(ByVal msg As String, Optional ByVal isError As Boolean = False)
Trace.WriteLine(msg)
If IsInConsoleMode Then
Console.WriteLine(msg)
End If
If isError Then
EventLog.WriteEntry("ISE CMM Param Util", msg, EventLogEntryType.Error)
Else
EventLog.WriteEntry("ISE CMM Param Util", msg, EventLogEntryType.Information)
End If
End Sub
Raymond Chen recently posted (a month after the question was posted here on SO) a short article about this:
How do I write a program that can be run either as a console or a GUI application?
You can't, but you can try to fake it.
Each PE application contains a field
in its header that specifies which
subsystem it was designed to run
under. You can say
IMAGE_SUBSYSTEM_WINDOWS_GUI to mark
yourself as a Windows GUI application,
or you can say
IMAGE_SUBSYSTEM_WINDOWS_CUI to say
that you are a console application. If
you are GUI application, then the
program will run without a console.
The subsystem determines how the
kernel prepares the execution
environment for the program. If the
program is marked as running in the
console subsystem, then the kernel
will connect the program's console to
the console of its parent, creating a
new console if the parent doesn't have
a console. (This is an incomplete
description, but the details aren't
relevant to the discussion.) On the
other hand, if the program is marked
as running as a GUI application, then
the kernel will run the program
without any console at all.
In that article he points to another by Junfeng Zhang that discusses how a couple of programs (Visual Studio and ildasm) implement this behavior:
How to make an application as both GUI and Console application?
In VisualStudio case, there are actually two binaries: devenv.com and devenv.exe. Devenv.com is a Console app. Devenv.exe is a GUI app. When you type devenv, because of the Win32 probing rule, devenv.com is executed. If there is no input, devenv.com launches devenv.exe, and exits itself. If there are inputs, devenv.com handles them as normal Console app.
In ildasm case, there is only one binary: ildasm.exe. It is first compiled as a GUI application. Later editbin.exe is used to mark it as console subsystem. In its main method it determines if it needs to be run as console mode or GUI mode. If need to run as GUI mode, it relaunches itself as a GUI app.
In the comments to Raymond Chen's article, laonianren has this to add to Junfeng Zhang's brief description of how Visual Studio works:
devenv.com is a general purpose console-mode stub application. When it runs it creates three pipes to redirect the console's stdin, stdout and stderr. It then finds its own name (usually devenv.com), replaces the ".com" with ".exe" and launches the new app (i.e. devenv.exe) using the read end of the stdin pipe and the write ends of the stdout and stderr pipes as the standard handles. Then it just sits and waits for devenv.exe to exit and copies data between the console and the pipes.
Thus even though devenv.exe is a gui app it can read and write the "parent" console using its standard handles.
And you could use devenv.com yourself for myapp.exe by renaming it to myapp.com. But you can't in practise because it belongs to MS.
Update 1:
As said in Michael Burr answer, Raymond Chen recently posted a short article about this. I am happy to see that my guess was not totally wrong.
Update 0:
Disclaimer: This "answer" is mostly speculation. I post it only because enough time has passed to establish that not many people have the answer to what look like a fundamental question.
I think that the "decision" if the application is gui or console is made at compile time and not at runtime. So if you compile your application as gui application, even if you don't display the gui, its still a gui application and doesn't have console. If you choose to compile it as console application then at minimum you will have a console windows flashing before moving to gui "mode". And I don't know if it is possible in managed code.
The problem is fundamental, I think, Because a console application has to take "control" of the calling console application. And it has to do so before the code of the child application is running.
If you want to check if your app is started from the command line in .NET, you can use Console.GetCursorPosition().
The reason that this works is that when you start it from the command line, the cursor moves away from the initial point ((0, 0)) because you typed something in the terminal (the name of the app).
You can do this with an equality check (code in C#):
class Program
{
public static void Main
{
if (Console.GetCursorPosition() == (0, 0))
{
//something GUI
}
else
{
//something not GUI
}
}
}
Note: You must set the output type to Console Application as other output types will make Console.GetCursorPosition() throw an exception.