Use to parse Qt resource files

This article introducesQt resource fileUsed, like most GUI framework design tools,QtAlso introducedResource fileSystem. It is used to conveniently convert binary dataFile(Mainly ImagesFile) Compiled into the executable program, eliminating the trouble of additional files when releasing the application.

QtOfResource file

It is in XML text format with. qrc as the suffix. Use in the Qt ProjectResource fileAdd the following code to the. pro project file:

 
 

  
  
RESOURCES     = file.qrc  
 
 

After such a statement is added to the project file, the qmake system automatically calls RCC (Resource fileCompiler) converts file. qrc to qrc_file.cpp, and finally uses gcc for normal compilation.

Basic Format of resource files

Let's look at a simple. qrc example.

 
 

  
  
images/copy.png  
  
  
images/cut.png  
  
  
images/new.png  
  
  
images/open.png  
  
  
images/paste.png  
  
  
images/save.png 
 
 

The code between the main parts and the other parts can be copied. Here, "images/" is relative to youResource filePath, andResource file. You can use QFile in your source code to access them. In this example, because it is an image file, you can use QImage to access them directly. However, you must add the prefix ": /", in the form

 
 

  
  
QImage(”:/images/copy.png”); 
 
 

Resource file alias

If yourResource fileAnd put it in a relatively deep Directory, which can be simplified by alias

 
 

  
  
images/cut.png 
 
 

With the alias, you can use the alias to access the. cpp file.

 
 

  
  
QImage(”:/cut-img.png”); 
 
 

Internationalization of resource files

SomeResource fileYou may use differentResource file. You can also use the alias and language options. I didn't see the code.

 
 

  
  
cut.jpg  
  
  
cut_fr.jpg 
 
 

Before useResourcesIn the. cpp code, you can access differentResource file.

Summary:Qt resource fileAfter using the content, from the basic format of the resource file to the format of the resource file, the QT file is described in detail. I hope this content will be helpful to you. If possible, you can leave a message.