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The Graphics Device Interface in the architecture of Windows NT For example GDK makes use of GDI. The Graphics Device Interface (GDI) is a legacy component of Microsoft Windows responsible for representing graphical objects and transmitting them to output devices such as monitors and printers. It was superseded by DirectDraw API and later ...
Media Foundation (Windows Vista / Windows 7) Interface Graphics Device Interface (GDI) and GDI+; Application Programming Interface (API) Messaging Application Programming Interface (MAPI) Remote Application Programming Interface (RAPI) Speech Application Programming Interface (SAPI) Telephony Application Programming Interface (TAPI)
The compositing manager introduced in Windows Vista that handles compositing and manages special effects on screen objects in a graphical user interface Graphics Device Interface: GDI/GDI+ The kernel graphics component for representing graphical objects and transmitting them to output devices such as monitors and printers Windows USER
The Graphics Device Interface is responsible for tasks such as drawing lines and curves, rendering fonts and handling palettes. The Windows NT 3.x series of releases had placed the GDI component in the user-mode Client/Server Runtime Subsystem, but this was moved into kernel mode with Windows NT 4.0 to improve graphics performance. [23]
The Graphics Device Interface (GDI) component provides features to output graphics content to monitors, printers, and other output devices. It resides in gdi.exe on 16-bit Windows, and gdi32.dll on 32-bit Windows in user-mode. Kernel-mode GDI support is provided by win32k.sys which communicates directly with the graphics driver. [3] [4]
Windows 95 was touted as a 32-bit based operating system but it was actually based on a hybrid kernel (VWIN32.VXD) with the 16-bit user interface (USER.EXE) and graphic device interface (GDI.EXE) of Windows for Workgroups (3.11), which had 16-bit kernel components with a 32-bit subsystem (USER32.DLL and GDI32.DLL) that allowed it to run native ...
One significant difference from previous versions of Windows NT is that the Graphics Device Interface (GDI) is moved into kernel mode [22] rather than being in user mode in the CSRSS process. This eliminated a process-to-process context switch in calling GDI functions, resulting in a significant performance improvement over Windows NT 3.51 ...
Under Windows 7 and with WDDM 1.1 drivers, DWM only writes the program's buffer to the video RAM, even if it is a graphics device interface (GDI) program. This is because Windows 7 supports (limited) hardware acceleration for GDI [2] and in doing so does not need to keep a copy of the buffer in system RAM so that the CPU can write to it.