is there any way to insert QPixmap object in html?

Question

Simple situation: I have an object, which has a QPixmap member. Object first created (pixmap is null now), then pixmap readed from data base and inserted in obj

Answer 1

If you only want to display a QPixmap in a QLabel, you should use QLabel::setPixmap. You can construct the pixmap in memory by using QPixmap::loadFromData.

If you want to display a memory pixmap in HTML, e.g. in a QWebView, you can use

    QByteArray byteArray;
    QBuffer buffer(&byteArray);
    pixmap.save(&buffer, "PNG");
    QString url = QString("";

(untested)

QLabel::setText does not work with HTML but with rich-text. I do not know if the data: protocol is supported by the Qt rich-text implementation.

Another way to insert a pixmap into a QWebView would be to use a subclass of QNetworkAccessManager and reimplement its createRequest() function to check for URLs with your own protocol ("myprot:") and insert the pixmap data there. But this looks like overkill.