C++ (Cpp) xp_lock_window Beispiele

Beispiel #1

Datei: xprFrame.c Projekt: Magister/x11rdp_xorg71

/*
 * Start drawing to a frame.
 *  Prepare for direct access to its backing buffer.
 */
void
xprStartDrawing(RootlessFrameID wid, char **pixelData, int *bytesPerRow)
{
    void *data[2];
    unsigned int rowbytes[2];
    xp_error err;

    err = xp_lock_window((xp_window_id) wid, NULL, NULL, data, rowbytes, NULL);
    if (err != Success)
        FatalError("Could not lock window %i for drawing.", (int) wid);

    *pixelData = data[0];
    *bytesPerRow = rowbytes[0];
}

Beispiel #2

Datei: xprFrame.c Projekt: aosm/X11server

/*
 * Start drawing to a frame.
 *  Prepare for direct access to its backing buffer.
 */
static void
xprStartDrawing(RootlessFrameID wid, char **pixelData, int *bytesPerRow)
{
    void *data[2];
    unsigned int rowbytes[2];
    xp_error err;

    TA_SERVER();
    
    err = xp_lock_window(x_cvt_vptr_to_uint(wid), NULL, NULL, data, rowbytes, NULL);
    if (err != Success)
        FatalError("Could not lock window %d for drawing (%d).", (int)x_cvt_vptr_to_uint(wid), (int)err);

    *pixelData = data[0];
    *bytesPerRow = rowbytes[0];
}