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  1. Qt
  2. QTBUG-20470

using glew.h with Qt-4.8 in MSVC has broken

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Invalid
    • Affects Version/s: 4.8.0
    • Fix Version/s: None
    • Component/s: GUI: OpenGL
    • Labels:
      None
    • Environment:
      windows 7 x64
      MSVC 2010
      glew 1.6.0

      Description

      I got Qt-4.8 source code from git, it seems that using glew.h with Qt-4.8 in MSVC has broken.

      If I include glew.h before <QtOpenGL>, there will be compiling errors, this is due to the following line in qglfunctions.h

      #ifdef _GLEW_H_
      #warning qglfunctions.h is not compatible with GLEW, GLEW defines will be undefined
      #warning To use GLEW with Qt, do not include <QtOpenGL> or <QGLFunctions> after glew.h
      #endif

      MSVC doesn't recognize preprocessor directive #warning

      If I include glew.h after <QtOpenGL>, then glew.h will complain "fatal error C1189: #error : gl.h included before glew.h"

      For now, I can't find a way to use glew.h with Qt

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            Assignee:
            rodal Samuel Rødal
            Reporter:
            jianliang79 liang jian
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              Created:
              Updated:
              Resolved:

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