qeventdispatcher_win_p.h File Reference

#include "QtCore/qabstracteventdispatcher.h"
#include "QtCore/qt_windows.h"

Go to the source code of this file.

Classes
class	QEventDispatcherWin32

Functions
LRESULT QT_WIN_CALLBACK	qt_internal_proc (HWND hwnd, UINT message, WPARAM wp, LPARAM lp)

Function Documentation

qt_internal_proc()

LRESULT QT_WIN_CALLBACK qt_internal_proc	(	HWND	hwnd,
		UINT	message,
		WPARAM	wp,
		LPARAM	lp
	)

Definition at line 430 of file qeventdispatcher_win.cpp.

Referenced by qt_create_internal_window(), and QEventDispatcherWin32Private::~QEventDispatcherWin32Private().

{
    if (message == WM_NCCREATE)
        return true;

    MSG msg;
    msg.hwnd = hwnd;
    msg.message = message;
    msg.wParam = wp;
    msg.lParam = lp;
    QCoreApplication *app = QCoreApplication::instance();
    long result;
    if (!app) {
        if (message == WM_TIMER)
            KillTimer(hwnd, wp);
        return 0;
    } else if (app->filterEvent(&msg, &result)) {
        return result;
    }

#ifdef GWLP_USERDATA
    QEventDispatcherWin32 *q = (QEventDispatcherWin32 *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
#else
    QEventDispatcherWin32 *q = (QEventDispatcherWin32 *) GetWindowLong(hwnd, GWL_USERDATA);
#endif
    QEventDispatcherWin32Private *d = 0;
    if (q != 0)
        d = q->d_func();

    if (message == WM_QT_SOCKETNOTIFIER) {
        // socket notifier message
        int type = -1;
        switch (WSAGETSELECTEVENT(lp)) {
        case FD_READ:
        case FD_CLOSE:
        case FD_ACCEPT:
            type = 0;
            break;
        case FD_WRITE:
        case FD_CONNECT:
            type = 1;
            break;
        case FD_OOB:
            type = 2;
            break;
        }
        if (type >= 0) {
            Q_ASSERT(d != 0);
            QSNDict *sn_vec[3] = { &d->sn_read, &d->sn_write, &d->sn_except };
            QSNDict *dict = sn_vec[type];

            QSockNot *sn = dict ? dict->value(wp) : 0;
            if (sn) {
                QEvent event(QEvent::SockAct);
                QCoreApplication::sendEvent(sn->obj, &event);
            }
        }
        return 0;
    } else if (message == WM_QT_SENDPOSTEDEVENTS
               // we also use a Windows timer to send posted events when the message queue is full
               || (message == WM_TIMER
                   && d->sendPostedEventsWindowsTimerId != 0
                   && wp == (uint)d->sendPostedEventsWindowsTimerId)) {
        int localSerialNumber = d->serialNumber;
        if (localSerialNumber != d->lastSerialNumber) {
            d->lastSerialNumber = localSerialNumber;
            QCoreApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
        }
        return 0;
    } else if (message == WM_TIMER) {
        Q_ASSERT(d != 0);
        d->sendTimerEvent(wp);
        return 0;
    }

    return DefWindowProc(hwnd, message, wp, lp);
}