[PyQt] Error: Failed to load opengl32sw.dll

[Phil Thompson]

On 10/02/2020 05:03, Zhao Lee wrote:
> Got the following error  with :Python 3.7.4, lateset pyqt5 and
> PyQtWebEngine, on win10 32bit.
> As I've said in the last "QtWebEngineProcess.exe – Bad Image” thread,
> version 5.13.2 of pyqt5 and PyQtWebEngine do not suffer the problem.
> 
> 
> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
> 
> Failed to load and resolve WGL/OpenGL functions
> 
> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
> 
> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
> 
> Failed to load and resolve WGL/OpenGL functions
> 
> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
> 
> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
> 
> Failed to load and resolve WGL/OpenGL functions
> 
> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
> 
> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
> 
> Failed to load and resolve WGL/OpenGL functions
> 
> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
> 
> Failed to create OpenGL context for format QSurfaceFormat(version 2.0,
> options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24,
> redBufferSize -1, greenBufferSize -1, blueBufferSize -1,
> alphaBufferSize -1, stencilBufferSize 8, samples 0, swapBehavior
> QSurfaceFormat::DefaultSwapBehavior, swapInterval 1, colorSpace
> QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
> .
> 
> This is most likely caused by not having the necessary graphics
> drivers installed.
> 
> 
> 
> 
> Install a driver providing OpenGL 2.0 or higher, or, if this is not
> possible, make sure the ANGLE Open GL ES 2.0 emulation libraries
> (libEGL.dll, libGLESv2.dll and d3dcompiler_*.dll) are available in the
> application executable's directory or in a location listed in PATH.

All of those DLLs are included in the wheel.

Phil