I use windeployqt to package my program but some computers cannot run well.

Touch

I use QOpenGLWidget and GLSL to draw things, but some computers cannot show anything.
I guess the reason is that I have not collect all the .dll files.
I hope to get a way to find all the files.

This is my .pro file.

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++17

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    driveassistant.cpp \
    driveassistantwindow.cpp \
    imagewidget.cpp \
    interactiveimagewidget.cpp \
    main.cpp \
    mypainter.cpp

HEADERS += \
    driveassistant.h \
    driveassistantwindow.h \
    imagewidget.h \
    interactiveimagewidget.h \
    mypainter.h

FORMS += \
    driveassistantwindow.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

## ===========opengl==============
QT += opengl
QT += core gui openglwidgets
QT += widgets
## ===============================

# ============gl===============
win32: LIBS += -lOpenGL32
win32: LIBS += -lGlU32
#==============================

After do the windeployqt the directory shows:

cristian-adam

Maybe it has something to do with the OpenGL drivers missing on those "some" computers.

The missing DLLs dependencies errors are different, the operating system is showing a message box.

I see you have opengl32sw.dll, which you can use on those "some" computers by setting the QT_OPENGL environment variable to software before starting your application.

Alternatively you can install OpenCL™ and OpenGL® Compatibility Pack from Microsoft Store.

Touch

Oh! Actually operating system does not show a message box, but the functions which use shader could not draw anything.
So it is because the OpenGL driver. It do make sense.
I am going to try your suggestion. Thank you!

Touch

@cristian-adam
sorry. I try the two methods but does not work.
Then I install the NVIDIA support for OpenGL Driver Support, it still can not draw anything.
I don't know what i should do..

cristian-adam

I guess it depends of what you are using from OpenGL and GLSL.

The opengl32sw.dll (mesa3d llvmpipe) that Qt is using is a bit dated, and might not provide the OpenGL version that you need.

You can get a newer version from https://github.com/pal1000/mesa-dist-win