QGLTemporaryContext Class Reference

#include <qgl_p.h>

Public Functions
	QGLTemporaryContext (bool directRendering=true, QWidget *parent=0)
	~QGLTemporaryContext ()

Properties
QScopedPointer< QGLTemporaryContextPrivate >	d

Detailed Description

Definition at line 329 of file qgl_p.h.

Constructors and Destructors

QGLTemporaryContext()

QGLTemporaryContext::QGLTemporaryContext	(	bool	directRendering = true,
		QWidget *	parent = 0
	)

Definition at line 132 of file qgl_mac.mm.

    : d(new QGLTemporaryContextPrivate)
{
    d->ctx = 0;
#ifndef QT_MAC_USE_COCOA
    GLint attribs[] = {AGL_RGBA, AGL_NONE};
    AGLPixelFormat fmt = aglChoosePixelFormat(0, 0, attribs);
    if (!fmt) {
        qDebug("QGLTemporaryContext: Couldn't find any RGB visuals");
        return;
    }
    d->ctx = aglCreateContext(fmt, 0);
    if (!d->ctx)
        qDebug("QGLTemporaryContext: Unable to create context");
    else
        aglSetCurrentContext(d->ctx);
    aglDestroyPixelFormat(fmt);
#else
    QMacCocoaAutoReleasePool pool;
    NSOpenGLPixelFormatAttribute attribs[] = { 0 };
    NSOpenGLPixelFormat *fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
    if (!fmt) {
        qWarning("QGLTemporaryContext: Cannot find any visuals");
        return;
    }

    d->ctx = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:0];
    if (!d->ctx)
        qWarning("QGLTemporaryContext: Cannot create context");
    else
        [d->ctx makeCurrentContext];
    [fmt release];
#endif
}

~QGLTemporaryContext()

QGLTemporaryContext::~QGLTemporaryContext

(

)

Definition at line 167 of file qgl_mac.mm.

{
    if (d->ctx) {
#ifndef QT_MAC_USE_COCOA
        aglSetCurrentContext(0);
        aglDestroyContext(d->ctx);
#else
        [NSOpenGLContext clearCurrentContext];
        [d->ctx release];
#endif
    }
}

Properties

d

QScopedPointer<QGLTemporaryContextPrivate> QGLTemporaryContext::d

private

Definition at line 335 of file qgl_p.h.

Referenced by QGLContext::chooseContext(), QGLContext::chooseMacVisual(), QGLTemporaryContext(), QGLWidget::resizeEvent(), QGLWidget::setContext(), QGLContext::updatePaintDevice(), and ~QGLTemporaryContext().

---

The documentation for this class was generated from the following files:

• /src/opengl/qgl_p.h
• /src/opengl/qgl_mac.mm
• /src/opengl/qgl_qpa.cpp
• /src/opengl/qgl_qws.cpp
• /src/opengl/qgl_win.cpp
• /src/opengl/qgl_wince.cpp
• /src/opengl/qgl_x11.cpp
• /src/opengl/qgl_x11egl.cpp