Method cb_end_paint

Plugins/FreeRDP/Client/BackendFreeRDP.cpp:1953–2015

}

BOOL CBackendFreeRDP::cb_end_paint(rdpContext *context)
{
    //qDebug(log) << Q_FUNC_INFO;
    ClientContext* pContext = (ClientContext*)context;
    CBackendFreeRDP* pThis = pContext->pThis;
    INT32 ninvalid;
    HGDI_RGN cinvalid;
    REGION16 invalidRegion;
    RECTANGLE_16 invalidRect;
    const RECTANGLE_16* extents;
    HGDI_DC hdc;
    int i = 0;

    if (!context || !context->gdi || !context->gdi->primary
            || !context->gdi->primary->hdc)
		return FALSE;

    hdc = context->gdi->primary->hdc;
    
    if (!hdc || !hdc->hwnd || !hdc->hwnd->invalid)
		return FALSE;

    rdpGdi* gdi = context->gdi;
    if (gdi->suppressOutput)
        return TRUE;

    HGDI_WND hwnd = context->gdi->primary->hdc->hwnd;
    ninvalid = hwnd->ninvalid; //无效区数量
	cinvalid = hwnd->cinvalid; //无效区数组
    if (ninvalid < 1)
		return TRUE;

    region16_init(&invalidRegion);

	for (i = 0; i < ninvalid; i++)
	{
        if(cinvalid[i].null)
        {
            qWarning(log) << "is null region" << cinvalid[i].x << cinvalid[i].y
                          << cinvalid[i].w << cinvalid[i].h;
            continue;
        }
		invalidRect.left = cinvalid[i].x;
		invalidRect.top = cinvalid[i].y;
		invalidRect.right = cinvalid[i].x + cinvalid[i].w;
		invalidRect.bottom = cinvalid[i].y + cinvalid[i].h;
		region16_union_rect(&invalidRegion, &invalidRegion, &invalidRect);
	}

	if (!region16_is_empty(&invalidRegion))
	{
		extents = region16_extents(&invalidRegion);
        //qDebug(log) << extents->left << extents->top << extents->right << extents->bottom;
        pThis->UpdateBuffer(extents->left,
                            extents->top,
                            extents->right - extents->left,
                            extents->bottom - extents->top);
    }