Reply to Com-Nr > 9 on Tue, 01 May 2007 10:12:14 GMT

Alex111 — Tue, 01 May 2007 10:12:14 GMT

Hallo zusammen,

habe gerade bemerkt, dass wenn meien Com-Nr grösser als 9 ist, kann ich es nicht mit der CreateFile(..) öffnen, was ist da falsch an dem String COMXX? (XX>=10)

Danke

Reply to Com-Nr > 9 on Tue, 01 May 2007 11:22:24 GMT

nn — Tue, 01 May 2007 11:22:24 GMT

Aus dem MSDN:

If the name of the port is \.\COM10, the correct way to specify the serial port in a call to CreateFile() is as follows:

CreateFile(
      "\\\\.\\COM10",     // address of name of the communications device
      fdwAccess,          // access (read-write) mode
      0,                  // share mode
      NULL,               // address of security descriptor
      OPEN_EXISTING,      // how to create
      0,                  // file attributes
      NULL                // handle of file with attributes to copy
   );