Gdk::DmabufFormats provides information about supported DMA buffer formats.  
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#include <gdkmm/dmabufformats.h>
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| void | reference () const | 
|  | Increment the reference count for this object. 
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| void | unreference () const | 
|  | Decrement the reference count for this object. 
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| GdkDmabufFormats * | gobj () | 
|  | Provides access to the underlying C instance. 
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| const GdkDmabufFormats * | gobj () const | 
|  | Provides access to the underlying C instance. 
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| GdkDmabufFormats * | gobj_copy () const | 
|  | Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. 
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|  | DmabufFormats ()=delete | 
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|  | DmabufFormats (const DmabufFormats &)=delete | 
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| DmabufFormats & | operator= (const DmabufFormats &)=delete | 
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| gsize | get_n_formats () const | 
|  | Returns the number of formats that the formats object contains. 
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| std::pair< guint32, guint64 > | get_format (gsize idx) const | 
|  | Gets the fourcc code and modifier for a format. 
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| bool | contains (guint32 fourcc, guint64 modifier) const | 
|  | Returns whether a given format is contained in formats. 
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| bool | equal (const Glib::RefPtr< const DmabufFormats > & formats2) const | 
|  | Returns whether formats1 and formats2 contain the same dmabuf formats, in the same order. 
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Gdk::DmabufFormats provides information about supported DMA buffer formats. 
You can query whether a given format is supported with contains() and you can iterate over the list of all supported formats with get_n_formats() and get_format().
The list of supported formats is sorted by preference, with the best formats coming first.
See Gdk::DmabufTextureBuilder for more information about DMA buffers.
Get a DmabufFormats object with Gdk::Display::get_dmabuf_formats().
Note that DMA buffers only exist on Linux.
- Since gtkmm 4.14
◆ DmabufFormats() [1/2]
  
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          | Gdk::DmabufFormats::DmabufFormats | ( |  | ) |  |  | delete | 
 
 
◆ DmabufFormats() [2/2]
◆ contains()
      
        
          | bool Gdk::DmabufFormats::contains | ( | guint32 | fourcc, | 
        
          |  |  | guint64 | modifier ) const | 
      
 
Returns whether a given format is contained in formats. 
- Since gtkmm 4.14
- Parameters
- 
  
    | fourcc | A format code. |  | modifier | A format modifier. |  
 
- Returns
- trueif the format specified by the arguments is part of formats.
 
 
◆ equal()
Returns whether formats1 and formats2 contain the same dmabuf formats, in the same order. 
- Since gtkmm 4.14
- Parameters
- 
  
  
- Returns
- trueif formats1 and formats2 are equal.
 
 
◆ get_format()
      
        
          | std::pair< guint32, guint64 > Gdk::DmabufFormats::get_format | ( | gsize | idx | ) | const | 
      
 
Gets the fourcc code and modifier for a format. 
- Since gtkmm 4.14
- Parameters
- 
  
    | idx | The index of the format to return. |  
 
- Returns
- {fourcc, modifier} The format code and the format modifier. 
 
 
◆ get_n_formats()
      
        
          | gsize Gdk::DmabufFormats::get_n_formats | ( |  | ) | const | 
      
 
Returns the number of formats that the formats object contains. 
Note that DMA buffers are a Linux concept, so on other platforms, get_n_formats() will always return zero.
- Since gtkmm 4.14
- Returns
- The number of formats. 
 
 
◆ gobj() [1/2]
      
        
          | GdkDmabufFormats * Gdk::DmabufFormats::gobj | ( |  | ) |  | 
      
 
Provides access to the underlying C instance. 
 
 
◆ gobj() [2/2]
      
        
          | const GdkDmabufFormats * Gdk::DmabufFormats::gobj | ( |  | ) | const | 
      
 
Provides access to the underlying C instance. 
 
 
◆ gobj_copy()
      
        
          | GdkDmabufFormats * Gdk::DmabufFormats::gobj_copy | ( |  | ) | const | 
      
 
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. 
 
 
◆ operator delete()
  
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          | void Gdk::DmabufFormats::operator delete | ( | void * | , |  
          |  |  | std::size_t | ) |  | protected | 
 
 
◆ operator=()
◆ reference()
      
        
          | void Gdk::DmabufFormats::reference | ( |  | ) | const | 
      
 
Increment the reference count for this object. 
You should never need to do this manually - use the object via a RefPtr instead. 
 
 
◆ unreference()
      
        
          | void Gdk::DmabufFormats::unreference | ( |  | ) | const | 
      
 
Decrement the reference count for this object. 
You should never need to do this manually - use the object via a RefPtr instead. 
 
 
◆ wrap()
A Glib::wrap() method for this object. 
- Parameters
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    | object | The C instance. |  | take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref. |  
 
- Returns
- A C++ instance that wraps this C instance.