Measurement-computing Personal488 rev.3.0 For DOS & Windows 3.Xi Uživatelský manuál stáhnout pdf (Strana 243)

10E. C Languages II. SOFTWARE GUIDES - 10. Driver488/W31

II-228 Personal488 User’s Manual, Rev. 3.0

/* Inform Windows painting is complete */

EndPaint(hWnd, &ps);

break; /* End of WM_PAINT */

case WM_CLOSE: /* close the window */

/* Destroy child windows, modeless dialogs, then, this window */

hDriver=FindWindow((LPSTR)"Driver488/W31 Loader",

(LPSTR)"Driver488/W31");

SendMessage(hDriver, WM_DESTROY, 0, 0L);

DestroyWindow(hWnd);

if (hWnd == hWndMain)

PostQuitMessage(0); /* Quit the application */

break;

default:

/* For any message for which you don’t specifically provide a */

/* service routine, you should return the message to Windows */

/* for default message processing. */

return DefWindowProc(hWnd, Message, wParam, lParam);

}

return 0L;

} /* End of WndProc */

/*******************************************************************/

/* */

/* Dialog Window Procedure */

/* */

/* This procedure is associated with the dialog box that is */

/* included inthe function name of the procedure. It provides the */

/* service routines for the events (messages) that occur because */

/* the end user operates one of the dialog box’s buttons, entry */

/* fields, or controls. */

/*******************************************************************/

BOOL FAR PASCAL EX3DLGMsgProc(HWND hWndDlg, WORD Message, WORD wParam,

LONG lParam)

{

double sum, voltage;

int i, hundred[100];

TermT noterm;

switch(Message) {

case WM_INITDIALOG:

cwCenter(hWndDlg, 0);

/* initialize working variables */

/* open Driver488/W31 */

if ((ieee=OpenName(“IEEE”))<0) {

MessageBox(hWndDlg, (LPSTR)"Cannot initialize IEEE system", NULL,

MB_OK);

EndDialog(hWndDlg, TRUE);

return TRUE;

}

/* open device named ADC */

Error(ieee, OFF);

switch (adc=OpenName(“ADC”)) {

case -2:

MessageBox(hWndDlg, (LPSTR)"ADC device already open", NULL,

MB_OK);

EndDialog(hWndDlg, TRUE);

return TRUE;

case -1:

switch (devhandle=OpenName(“WAVE”)) {

case -2:

MessageBox(hWndDlg, (LPSTR)"WAVE device already open", NULL, MB_OK);

EndDialog(hWndDlg, TRUE);

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Measurement-computing Personal488 rev.3.0 For DOS & Windows 3.Xi Uživatelský manuál Strana 243

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