Transfer Startup Data

[sweep123]

I need to start up to 4 instances of an application from another application. But can have 1 and 4 running only or 1, 2 and 4 running (i.e. not 3).

How do you pass a number to allow the application starting up to know which instance to be.
Currently if a start 1 and 3 then 1 and 2 run as 2 knows that 1 is running so takes the next number available; it needs to be told to be 3.

I use the following to start the applications: (Check box for each one)

if(g_pIDU1->GetCheck ()) // Check box 1 set?
{
GetStartupInfo(&si[0]);
CreateProcess(NULL, "c:\\IDU_Emu\\debug\\IDU_Emu.exe", // Name of app to launch
NULL, // Default process security attributes
NULL, // Default thread security attributes
FALSE, // Don't inherit handles from the parent
0, // Normal priority
NULL, // Use the same environment as the parent
NULL, // Launch in the current directory
&si[0], // Startup Information
&pi[0]); // Process information stored upon return CW_USEDEFAULT
}

etc

 

[Cagliostro]

CreateProcess(NULL, "c:\\IDU_Emu\\debug\\IDU_Emu.exe 1",...
CreateProcess(NULL, "c:\\IDU_Emu\\debug\\IDU_Emu.exe 2",...
CreateProcess(NULL, "c:\\IDU_Emu\\debug\\IDU_Emu.exe 3",...

Ion Filipski

 

[Cagliostro]

CreateProcess(NULL, "c:\\IDU_Emu\\debug\\IDU_Emu.exe 1",...
CreateProcess(NULL, "c:\\IDU_Emu\\debug\\IDU_Emu.exe 2",...
CreateProcess(NULL, "c:\\IDU_Emu\\debug\\IDU_Emu.exe 3",...

I mean you can pass parameters in the command line.

Ion Filipski

 

[sweep123]

OK thanks, one other question how does the other task pick the parameter's up.

The other task is a Win32 MFC application!

I know for a console application you can process the command line.

Many thanks,

Sweep123

 

[Cagliostro]

you should #include<stdarg.h> and use global variables __argc and __argv. The first one is the int number of parameters and the second one is a char** (array of char*) which contains the parameters.
Another way to pick parameters, is the third parameter of function WinMain, if you use WinMain.

Ion Filipski

 

[sweep123]

OK thanks, now got it working.

Placed the code in the WinApp file and created a global variable to allow the main dialog to access the data passed over.