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Message:
running a dos executable in win95 & 2000
Posted by Andy South on July 04, 2001 at 1:12 PM
I'm writing a GUI to create an input file and run an existing DOS executable. In win2000 I've managed to get the executable to start up in a new dos window which will take keyboard input, just like if it had been started directly from DOS. But I can't get it to do this in Win95 where I have to use command.com rather than cmd.exe. The following code does start up the executable in a new window but its not receptive to keyboard input (despite the fact that typing 'command.com /C START batch.bat' at the dos prompt does work). Any Suggestions ? I do deal with the Input and Error streams using buffers, but don't do anything with the Output stream, as this is uneccessary for win2000 I was assuming that it wouldn't be necessary for win95 either. String osName = System.getProperty("os.name" );
String[] cmd = new String[4]; if( osName.equals( "Windows NT" ) || osName.equals( "Windows 2000" ) )
{
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = "START";
cmd[3] = "batch.bat";
}
else if( osName.equals( "Windows 95" ) || osName.equals( "Windows 98" ) )
{
cmd[0] = "command.com" ;
cmd[1] = "/C" ;
cmd[2] = "START";
cmd[3] = "batch.bat";
}
else
{
System.out.println("Error unrecognised Operating System is : " + osName);
}
Runtime rt = Runtime.getRuntime();
System.out.println("Execing " + cmd[0] + " " + cmd[1] + " " + cmd[2] + " " + cmd[3]);
Process proc = rt.exec(cmd);
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