<![CDATA[QDesignerCustomWidgetInterface:No such file or directory. (solved)]]>I found the link below and i try to integrate custom widget into Qt.
http://www.ics.com/blog/integrating-custom-widget-qt-designer#.VFY9U4_7sYx
I try promote but since i need to access custom widget methods, i learn that i have to use plugin instead. is this correct?

I put the header and sources file in my containing folder, when i compile, compiler complains
QDesignerCustomWidgetInterface:No such file or directory.
plugin LED file.
#include <QDesignerCustomWidgetInterface>

Can someone kindly explains

]]>https://forum.qt.io/topic/47698/qdesignercustomwidgetinterface-no-such-file-or-directory-solvedRSS for NodeTue, 11 Aug 2026 20:14:01 GMTSun, 02 Nov 2014 14:30:02 GMT60<![CDATA[Reply to QDesignerCustomWidgetInterface:No such file or directory. (solved) on Sun, 02 Nov 2014 23:00:53 GMT]]>Hi,

Did you add

@QT += designer@

In your pro file ?

]]>https://forum.qt.io/post/249923https://forum.qt.io/post/249923Sun, 02 Nov 2014 23:00:53 GMT