Fix QX11Embed* with x86_64 by reading prop_return as long.
Fix QX11Embed* with x86_64 by reading prop_return as long.

Even though the _XEMBED_INFO property uses 32 bit values,
prop_return has 64-bit padded values in 64-bit applications,
see man XChangeProperty. Without this fix the XEMBED client
will read XEMBED_MAPPED wrong and unmap (hide) itself.

Merge-request: 797
Reviewed-by: Denis Dzyubenko <f3baa9d2a2ef0e289846537f083a7f7d228f87c6@nokia.com>

pruiz/wkhtmltopdf-qt,radekp/qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,radekp/qt,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,radekp/qt,radekp/qt,radekp/qt,radekp/qt,igor-sfdc/qt-wk,radekp/qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,radekp/qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,radekp/qt,radekp/qt,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt