Advantech RISC SOM-A2558 Technické informace stáhnout pdf (Strana 35)

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Advantech SOM-A200 series Software Manual

#define IOCTL_ACCESS_WDT 0x1005

#define IOCTL_GET_SCREENOFFTIME 0x1006

#define IOCTL_SET_SCREENOFFTIME 0x1007

#define IOCTL_SET_SCREENON 0x100F

#define IOCTL_SET_SCREENOFF 0x1010

HANDLE m_hWDT=NULL;

TCHAR szClassName[60];

...

// assign the WDT driver name

wsprintf(szClassName, TEXT("WDT1:"));

// Open the WDT driver

m_hWDT = CreateFile(szClassName, GENERIC_READ | GENERIC_WRITE, 0,

NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

if ( m_hWDT == INVALID_HANDLE_VALUE )

{

DebugMsg(CString("WDT driver fail"));

return;

}

...

DWORD dwTemp;

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Advantech RISC SOM-A2558 Technické informace Strana 35