I'm using ParticleSystem. I'm on Windows XP. Lock the desktop(Win+L), then unlock the desktop, then the following error will be repeatedly printed to the Output (at a very fast speed):
QOpenGLContext::swapBuffers() called without corresponding makeCurrent()
QEGLPlatformContext::swapBuffers(): eglError: 12302, this: 0x21daa40
bool __thiscall QWindowsEGLContext::makeCurrent(class QPlatformSurface *): eglMakeCurrent() failed, eglError: 0x300e, this: 0x21daa40
Meanwhile the window area belongs to my program will not refresh. It remains the background of the desktop
Here is my code: (In fact, ALL the particle examples have the same problem)
- I've also tested on Windows 7, it works well. *
And is it related to https://bugreports.qt-project.org/browse/QTBUG-30158 ?