[QScintilla] problem with pascal lexer implementation in QsciScintillaBase

[juju coucou]

Hello,
 I work on a GNU project to program a developping environement for pascal language (using Qt) for french people. I have a problem with implementation of pascal lexer with QsciScintillaBase class. I am using this code :
this->SendScintilla((unsigned int)QsciScintillaBase::SCI_SETLEXER,(unsigned long)QsciScintillaBase::SCLEX_PASCAL,(long)0);
But when I try scintilla widget there is no coloration, everything is black and I don't understand why. 
Could you help me please.

Thank you

Coolpak




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