path: root/src/opengl/qgl.cpp
diff options
authorSean Harmer <>2012-02-18 20:05:53 +0000
committerQt by Nokia <>2012-02-28 00:29:04 +0100
commitc2baf45c73beaa01df91d466296fd4efca25ee7a (patch)
tree584396a924cea33e5be5e3fff337f148d3988f6a /src/opengl/qgl.cpp
parent394e45199fa1aa45036dd787c5052ef7bcd98c52 (diff)
Prevent stack corruption when using OpenGL Core Profile
When an OpenGL Core Profile context is requested the function glGetStringi() is used to query the supported extensions as glGetString(GL_EXTENSIONS) has been removed in the core profile. The signature for glGetStringi used in Qt missed off the APIENTRY calling convention. This results in stack corruption on windows each time glGetStringi() is called leading to a crash. Change-Id: Iff62c42e2bb5fc4a5c0561fae97ddc5a8ae3a45e Reviewed-by: Samuel Rødal <>
Diffstat (limited to 'src/opengl/qgl.cpp')
1 files changed, 1 insertions, 1 deletions
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index 836e7225be..31d6064e90 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -4680,7 +4680,7 @@ QPaintEngine *QGLWidget::paintEngine() const
return qt_qgl_paint_engine();
-typedef GLubyte * (*qt_glGetStringi)(GLenum, GLuint);
+typedef const GLubyte * (QGLF_APIENTRYP qt_glGetStringi)(GLenum, GLuint);
#define GL_NUM_EXTENSIONS 0x821D