long WINAPI MainWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
long Tid;
switch (message)
{
case WM_CREATE:
/* Save the window handle in an external variable used elsewhere. */
hwndEyegaze = hwnd;
/* On startup, create an eyetracking thread to produce gaze info. */
CreateThread(NULL, 0, GazeDemo, 0, 0, &Tid);
break;
case WM_ENDSESSION:
case WM_CLOSE:
/* Call the EgExit function to shut down the vision subsystem. */
EgExit(&stEgControl);
PostMessage(hwnd, WM_DESTROY, (WORD)0, (LONG)0);
break;
case WM_DESTROY:
PostQuitMessage(0);
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0L;
}
LRESULT CALLBACK WindowFunc(HWND hwnd, UINT uiMessage,
WPARAM wParam, LPARAM lParam)
{
PAINTSTRUCT ps;
long Tid;
HMENU hMenu;
static HINSTANCE hInstance;
POINT point;
switch (uiMessage)
{
case WM_CREATE:
/* Save the instance handle for the dialog box calls below. */
hInstance = ((LPCREATESTRUCT) lParam)->hInstance;
/* Determine the upper-left corner of the client area in screen */
/* coordinates. */
point.x = 0;
point.y = 0;
ClientToScreen(hwnd,&point);
GetClientRect(hwnd, &stWindowRect);
iWindowWidthPix = stWindowRect.right - stWindowRect.left;
iWindowHeightPix = stWindowRect.bottom - stWindowRect.top;
iWindowHorzOffset = point.x;
iWindowVertOffset = point.y;
/* Create the virtual window. */
hdc = GetDC(hwnd);
memdc = CreateCompatibleDC(hdc);
hbit = CreateCompatibleBitmap(hdc, iScreenWidth, iScreenHeight);
SelectObject(memdc, hbit);
hbrush = GetStockObject(BLACK_BRUSH);
SelectObject(memdc, hbrush);
PatBlt(memdc, 0, 0, iScreenWidth, iScreenHeight, PATCOPY);
hwndEyegaze = hwnd;
lctSetWindowHandle(hwnd, memdc, hdc, szAppName, wcslen(szAppName));
/* Assume loopback connection. */
wcscpy_s(achCommAddress, 20, TEXT("127.0.0.1"));
if (_tcslen(achCmdLine) > 0)
wcscpy_s(achCommAddress, 20, achCmdLine);
/* Before calling InitEgClientDemo, set stEgControl.hEyegaze to a */
/* NULL so the functions that need it won't use it until it's been */
/* initialized. */
stEgControl.hEyegaze = NULL;
CreateThread(NULL, 0, InitEgClientDemo, 0, 0, &Tid);
break;;
case WM_PAINT:
BeginPaint(hwnd, &ps);
BitBlt(hdc,
// ps.rcPaint.left + iWindowHorzOffset, ps.rcPaint.top + iWindowVertOffset,
ps.rcPaint.left, ps.rcPaint.top,
ps.rcPaint.right - ps.rcPaint.left,
ps.rcPaint.bottom - ps.rcPaint.top,
memdc,
ps.rcPaint.left, ps.rcPaint.top,
SRCCOPY);
EndPaint(hwnd, &ps);
break;
/* If the user sizes or moves the window, obtain the new size and */
/* offsets from screen origin. */
case WM_MOVE:
point.x = 0;
point.y = 0;
ClientToScreen(hwnd,&point);
iWindowHorzOffset = point.x;
iWindowVertOffset = point.y;
break;
case WM_SIZE:
iWindowWidthPix = LOWORD(lParam);
iWindowHeightPix = HIWORD(lParam);
break;
case WM_SETFOCUS:
InvalidateRect(hwnd,NULL,TRUE);
return 0;
case WM_COMMAND:
hMenu = GetMenu(hwnd);
switch(LOWORD (wParam))
{
case ID_FILE_EXIT:
bStopCommunications = TRUE;
SendMessage(hwnd, WM_CLOSE, 0, 0);
/* Close the eyegaze communications. */
EgExit(&stEgControl);
SendMessage(hwnd, WM_CLOSE, 0, 0);
break;
case ID_COMMUNICATIONS_CALIBRATE:
bStopCommunications = FALSE;
EnableMenuItem(hMenu, ID_COMMUNICATIONS_CALIBRATE, MF_GRAYED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_BEGIN, MF_GRAYED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_END, MF_ENABLED);
/* Perform Eyegaze 'C'alibration on the client monitor. */
CreateThread(NULL, 0, SupportEyegazeCalibration, 0, 0, &Tid);
break;
case ID_COMMUNICATIONS_BEGIN:
bStopCommunications = FALSE;
EnableMenuItem(hMenu, ID_COMMUNICATIONS_CALIBRATE, MF_GRAYED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_BEGIN, MF_GRAYED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_END, MF_ENABLED);
CreateThread(NULL, 0, ProcessGazepointData, hfEyegazePort, 0, &Tid);
break;
case ID_COMMUNICATIONS_END:
bStopCommunications = TRUE;
EnableMenuItem(hMenu, ID_COMMUNICATIONS_CALIBRATE, MF_ENABLED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_BEGIN, MF_ENABLED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_END, MF_GRAYED);
break;
case ID_DATALOG_OPENFILE:
/* 'O'pen a file and receive file header data. */
if (DialogBox(hInstance, MAKEINTRESOURCE(IDD_OPENFILE),
hwnd, OpenFileDialogProc) == TRUE)
{
EnableMenuItem(hMenu, ID_DATALOG_OPENFILE, MF_GRAYED);
EnableMenuItem(hMenu, ID_DATALOG_BEGINDATACOLLECTION, MF_ENABLED);
EnableMenuItem(hMenu, ID_DATALOG_MARKEVENT, MF_ENABLED);
EnableMenuItem(hMenu, ID_DATALOG_CLOSEFILE, MF_ENABLED);
EgLogFileOpen(&stEgControl, achFileName, "a");
/* Write the log file column headers to the file. */
EgLogWriteColumnHeader(&stEgControl);
}
break;
case ID_DATALOG_BEGINDATACOLLECTION:
EnableMenuItem(hMenu, ID_DATALOG_ENDDATACOLLECTION, MF_ENABLED);
EnableMenuItem(hMenu, ID_DATALOG_BEGINDATACOLLECTION, MF_GRAYED);
/* Start storing Eyegaze data to file. */
EgLogStart(&stEgControl);
break;
case ID_DATALOG_MARKEVENT:
EgLogMark(&stEgControl);
break;
case ID_DATALOG_ENDDATACOLLECTION:
/* Stop storing Eyegaze data to file. */
EgLogStop(&stEgControl);
EnableMenuItem(hMenu, ID_DATALOG_ENDDATACOLLECTION, MF_GRAYED);
EnableMenuItem(hMenu, ID_DATALOG_BEGINDATACOLLECTION, MF_ENABLED);
break;
case ID_DATALOG_CLOSEFILE:
/* Close the file. */
EgLogFileClose(&stEgControl);
EnableMenuItem(hMenu, ID_DATALOG_OPENFILE, MF_ENABLED);
EnableMenuItem(hMenu, ID_DATALOG_BEGINDATACOLLECTION, MF_GRAYED);
EnableMenuItem(hMenu, ID_DATALOG_MARKEVENT, MF_GRAYED);
EnableMenuItem(hMenu, ID_DATALOG_CLOSEFILE, MF_GRAYED);
break;
case ID_HELP_ABOUT:
MessageBox(hwnd,TEXT ("EgClientDemo Demonstration Program\n")
TEXT ("(c) LC Technologies, 2003-2010 "),
szAppName, MB_ICONINFORMATION | MB_OK);
break;
}
break;
case ID_CALIBRATION_ENDED:
hMenu = GetMenu(hwnd);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_CALIBRATE, MF_ENABLED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_BEGIN, MF_ENABLED);
EnableMenuItem(hMenu, ID_COMMUNICATIONS_END, MF_GRAYED);
break;
case WM_DESTROY:
/* Close the eyegaze communications port. */
// EgExit(&stEgControl);
ReleaseDC(hwnd, hdc);
DeleteDC(memdc);
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, uiMessage, wParam, lParam);
break;
}
return 0;
}
