Measurement-computing Personal488 rev.3.0 For DOS & Windows 3.Xi Manual de usuario Pagina 242

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II. SOFTWARE GUIDES - 10. Driver488/W31 10E. C Languages
Personal488 Users Manual, Rev. 3.0 II-227
/* Do clean up before exiting from the application */
CwUnRegisterClasses();
return msg.wParam;
} /* End of WinMain */
/*******************************************************************/
/* */
/* Main Window Procedure */
/* This procedure provides service routines for the Windows */
/* events(messages) that Windows sends to the window, as well as */
/* the user initiated events (messages) that are generated when */
/* the user selects the action bar and pulldown menu controls or */
/* the corresponding keyboard accelerators. */
/*******************************************************************/
LONG FAR PASCAL WndProc(HWND hWnd, WORD Message, WORD wParam, LONG
lParam)
{
HMENU hMenu=0; /* handle for the menu */
HBITMAP hBitmap=0; /* handle for bitmaps */
HDC hDC; /* handle for the display device */
PAINTSTRUCT ps; /* holds PAINT information */
int nRc=0; /* return code */
HWND hDriver;
switch (Message) {
case WM_COMMAND:
/* The Windows messages for action bar and pulldown menu items */
/* are processed here. */
switch (wParam) {
case IDM_F_GO:
/* Place User Code to respond to the */
/* Menu Item Named &Go here. */
{
FARPROC lpfnEX3DLGMsgProc;
lpfnEX3DLGMsgProc = MakeProcInstance((FARPROC)EX3DLGMsgProc,
hInst);
nRc = DialogBox(hInst, MAKEINTRESOURCE(200), hWnd,
lpfnEX3DLGMsgProc);
FreeProcInstance(lpfnEX3DLGMsgProc);
}
break;
case IDM_F_QUIT:
/* Place User Code to respond to the */
/* Menu Item Named &Quit here. */
SendMessage(hWnd, WM_CLOSE, 0, 0L);
break;
default:
return DefWindowProc(hWnd, Message, wParam, lParam);
}
break; /* End of WM_COMMAND */
case WM_CREATE:
break; /* End of WM_CREATE */
case WM_MOVE: /* code for moving the window */
break;
case WM_SIZE: /* code for sizing client area */
break; /* End of WM_SIZE */
case WM_PAINT: /* code for the windows client area */
/* Obtain a handle to the device context */
/* BeginPaint will sends WM_ERASEBKGND if appropriate */
memset(&ps, 0x00, sizeof(PAINTSTRUCT));
hDC = BeginPaint(hWnd, &ps);
/* Included in case the background is not a pure color */
SetBkMode(hDC, TRANSPARENT);
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