did the trueupdate can overwrite a file

[pedro arzac]

Hi Mark

My question is can I overwrite a file with the true update if the application is open, modifying the .exe file of that app

best reggard

pedro arzac

[Brett]

The best thing to do is to detect if the program is running ahead of time and tell the user to shut it down before continuing. Something like this:

--[[	
**********************************************************************************
Function:	EnsureProgramIsClosed
Purpose:	To ensure that a named program is shut down.				
	enArguments:	(string) FileName - The name of the process. For example, "MyProgram.exe"
			(string) ProgramName - The user-friendly name of the program for the
					 message.  For example, "My Program".
Returns:	(boolean) true if the program was shut down successfully or false if not
**********************************************************************************
--]]
function EnsureProgramIsClosed(FileName,ProgramName)
	local bKeepTrying = true;
	local bReturn = true;
	while g_IsProcessRunning(ProgramName) and bKeepTrying do
			local Title = "Close Software";
			local Message = "Please close the following program:";
			Message = Message.."\r\n\r\n"..ProgramName;
			local DlgResult = Dialog.Message(Title,Message,MB_RETRYCANCEL,MB_ICONEXCLAMATION);
			if DlgResult == IDCANCEL then
				bReturn = false;
				bKeepTrying = false;
			end
	end
	
	return bReturn;
end

EnsureProgramIsClosed("My Software","MySoftware.exe");

[pedro arzac]

The code that you game me is sending me a mistake I put it in the server side, the error is in the these part

while g_IsProcessRunning(ProgramName) and bKeepTrying do it said that programName is empty I put it like these

EnsureProgramIsClosed("My Software","MySoftware.exe");

please help me

[Mark]

Hi Perdo,

Here is the missing function that you need:

--[[	
**********************************************************************************
Function:	g_IsProcessRunning
Purpose:	To determine if a named process is running.
Arguments:	(string) FileName - The name of the process. For example, "MyProgram.exe"
Returns:	(boolean) true if the program is running or false if not
**********************************************************************************
--]]
function g_IsProcessRunning(FileName)
	local tblProcesses = Window.EnumerateProcesses();
	local bProcessFound = false;
	if(tblProcesses)then
		local strProcessName;
		local nHandle;
		for nHandle, strProcessName in tblProcesses do
			if(String.Find(strProcessName,FileName,1,false) ~= -1)then
				bProcessFound = true;
			end
		end
	end
	
	return bProcessFound;
end

Put that code above the code that Brett posted and all should be well.

[jlsf2]

Seems like there is a bug in the functions that were posted here (and are included with the distribution).

In g_EnsureProgramIsClosed(), you make the following call:
while g_IsProcessRunning(ProgramName) and bKeepTrying do

I'm pretty sure this is supposed to be:
while g_IsProcessRunning(FileName) and bKeepTrying do

[jlsf2]

Just a follow up on my previous post.

The code that is in the release is from Visual Patch v2.0.

Seems like there is another bug in g_IsProcessRunning().

The test for a process running is:
if(String.Find(strProcessName,FileName,1,false) ~= -1)then

I think this should really be:
if(String.CompareNoCase(strProcessName,FileName) == 0)then

e.g.
Instead of running my app directly, I run my updater and then it calls my apps once it is complete.
The problem came up because my updater is called "updater.app.exe" and my app is called "app.exe".
When I run a patch, String.Find() is called with "app.exe" and "updater.app.exe". This in turn complains that my app is running when in fact it is not.

[jlsf2]

Was this ever verified as a bug? I just noticed that the same problem exists in VP3.

Thanks.