Pixmaps
From uGFX Wiki
Pixmaps provide dynamic frame buffers. A pixmap of any size can by dynamically created and destroyed during runtime. A pixmap represents itself as a virtual display to the user. Hence a pixmap can be treated like a regular display and all the available GDISP drawing routines can be performed inside the pixmap frame buffer. A pixmap can be rendered at any location of a real display at any time.
Contents
API reference
The API reference of the pixmap can be found here.
Creating and destroying a pixmap
Pixmaps can be created and destroyed at any time during runtime using gdispPixmapCreate() and gdispPixmapDelete().
Accessing the pixmap
A pixmap can be treated as either a virtual display or as a memory frame buffer surface.