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Write directly to COM1 in Windows 2000
- Thread starter Gigatech
- Start date
//---------------------------------------------------------------------------
void __fastcall TForm1::OpenTray()
{
//Kasse auf Knopfdruck öffnen
unsigned long res=0;
unsigned int i =0;
HANDLE com=CreateFile("COM1",GENERIC_WRITE,0,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,0);
if (com>0)
{
WriteFile(com,"XXXXXXXXXXXXXXXXXXXX",20,&res,NULL);
CloseHandle(com);
}
}
Hier ist ein CBuilder-Beispiel.
Gruß, SamC
void __fastcall TForm1::OpenTray()
{
//Kasse auf Knopfdruck öffnen
unsigned long res=0;
unsigned int i =0;
HANDLE com=CreateFile("COM1",GENERIC_WRITE,0,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,0);
if (com>0)
{
WriteFile(com,"XXXXXXXXXXXXXXXXXXXX",20,&res,NULL);
CloseHandle(com);
}
}
Hier ist ein CBuilder-Beispiel.
Gruß, SamC
If you dont want any 'C' in your Delphi program (who would?)
you can find lots of (FREE) third party components that give you access to the COMM ports. Browse for Delphi Components.
I use one Called 'CPORT Lib' which works well with the operating systems you want to use.
Steve
you can find lots of (FREE) third party components that give you access to the COMM ports. Browse for Delphi Components.
I use one Called 'CPORT Lib' which works well with the operating systems you want to use.
Steve
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