使用 QPixmap 加载图像 [英] Loading an image using QPixmap

问题描述

我有一个图像文件，如 C:/44637landscapes-2007.jpg

我想使用 PySide 使用 QPixmap 加载这个文件

我尝试如下.

pixmap = QPixmap('C:/44637landscapes-2007.jpg')

但是文档说像 QPixmap(':/xxxxxx.jpeg') .':' 是什么意思?

如何在 'C:\' 加载图像?

问题在于尝试加载 "JPEG" .它能够加载 "PNG" ，没有问题.那么，我还需要做什么来加载 "JPEG" ?

谢谢极乐

解决方案

如果您尝试将 Python 代码构建为可执行文件，这涵盖了 .ico 文件的问题，但过程与 JPEG 相同:PyQt/PySide - 图标显示

如果您在从已安装的解释器运行时遇到问题，那么您的路径变量可能设置不正确，您的 qt.conf(在基本 python 目录中)已被删除/更改，或者您没有 qjpeg4.dll 在它应该在的地方 (\Lib\site-packages\PySide\plugins\imageformats).

我的 qt.conf 看起来像:

[路径]前缀 = C:/Python27/lib/site-packages/PySide二进制文件 = .插件 = 插件翻译 = 翻译

C:/Python27/lib/site-packages/PySide 是我系统 PATH 变量的一部分，并且领先任何 PyQt(或其他 Qt)目录.>

I have an image file , as C:/44637landscapes-2007.jpg

I want to load this file using QPixmap using PySide

I tried as following .

pixmap = QPixmap('C:/44637landscapes-2007.jpg')

But documentation says like QPixmap(':/xxxxxx.jpeg') . What does ':' means ?

How do I load an image at 'C:\' ?

EDIT : The problem was with trying to load "JPEG" . It was able to load "PNG" , with no issues. So what else , I need to do to load "JPEG" ?

Thanks Jijoy

解决方案

If you're trying to build your Python code to an executable this covers the issue for .ico files but the process is the same for JPEG: PyQt/PySide - icon display

If you're having problems when running from your installed interpreter then your path variable probably isn't set correctly, your qt.conf (in the base python dir) has been deleted/changed or you don't have qjpeg4.dll where its supposed to be (<python dir>\Lib\site-packages\PySide\plugins\imageformats).

My qt.conf looks like:

[Paths]
Prefix = C:/Python27/lib/site-packages/PySide
Binaries = .
Plugins = plugins
Translation = translation

C:/Python27/lib/site-packages/PySide is part of my system PATH variable and ahead of any PyQt (or other Qt) directories.

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