Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 244)

II. SOFTWARE GUIDES - 10. Driver488/W31 10E. C Languages
Personal488 User’s Manual, Rev. 3.0 II-229
return TRUE;
case -1:
MessageBox(hWndDlg, (LPSTR)"Cannot open WAVE device",
NULL, MB_OK);
EndDialog(hWndDlg, TRUE);
return TRUE;
default:
break;
}
if ((adc=MakeDevice(devhandle, “ADC”))<0) {
MessageBox(hWndDlg, (LPSTR)"Cannot create ADC device", NULL,
MB_OK);
EndDialog(hWndDlg, TRUE);
return TRUE;
}
Close(devhandle);
break;
default:
break;
}
GetError(ieee, response);
Error(ieee, ON);
BusAddress(adc, 14, -1);
/* Setup event handling for trapping the SRQ */
OnEvent(ieee, hWndDlg, (OpaqueP)0L);
Arm(ieee, acSRQ);
/* Clear the ADC488 */
Clear(adc);
/* Setup the ADC488 to SRQ on acquisition complete */
Output(adc, “M128X”);
/* Setup the ADC488:
100 uSec scan interval (I3)
No pre-trigger scans, 100 post-trigger scans (N100)
Continuous trigger on GET (T1)
*/
Output(adc, “I3N100T1X”);
/* Wait for the ready bit of the ADC488 to be asserted */
while ((SPoll(adc) & 32) == 0);
/* Trigger the ADC488 */
Trigger(adc);
strcpy(textstr,"Waiting for SRQ event\r\n");
SetDlgItemText(hWndDlg, 201, (LPSTR)textstr);
break; /* End of WM_INITDIALOG
*/
case WM_CLOSE:
/* Closing the Dialog behaves the same as Cancel */
PostMessage(hWndDlg, WM_COMMAND, IDCANCEL, 0L);
break; /* End of WM_CLOSE */
case WM_COMMAND:
switch(wParam) {
case 201: /* Edit Control
*/
break;
case IDOK:
Close(ieee);
Close(adc);
EndDialog(hWndDlg,
TRUE);
break;
case IDCANCEL:
/* Ignore data values entered into the controls */
/* and dismiss the dialog window returning FALSE */
EndDialog(hWndDlg, FALSE);
break;