Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 234)

II. SOFTWARE GUIDES - 10. Driver488/W31 10E. C Languages
Personal488 User’s Manual, Rev. 3.0 II-219
{
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 lpfnEX2DLGMsgProc;
lpfnEX2DLGMsgProc = MakeProcInstance((FAPROC)EX2DLGMsgProc,
hInst);
nRc = DialogBox(hInst, MAKEINTRESOURCE(200), hWnd,
lpfnEX2DLGMsgProc);
FreeProcInstance(lpfnEX2DLGMsgProc);
}
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 window’s 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);
/* 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 */