system resources

[chipbgt]

when you open system resources, whats the dif between "system" resources, "User" resources, and "GDI" resources? thanks

[socalgal]

Hi chipbgt (you ask good questions...)

Let's see... I'll try.

System resources are memory areas - aka heaps - devoted to the User and GDI components.

These hold the data structures such as windows and menus (User), the graphical system that manages what appears on the screen and provides graphics support for printers and other output devices, fonts, (GDI) and other resources created by apps, such as toolbars.

These data structures are controlled by DMA, I/O, IRQ's, VXD (device drivers) - the System resources.

[chipbgt]

Before someone showed me sysopt I would just ask these out loud to myself and move on....now I have a place to actually put them down and see if a response is given..and now you guys are in trouble cause I have lots of questions /forum/smile.gif thanks

[pickel]

You have Questions http://www.sysopt.com/forum/frown.gif
They have Answers http://www.sysopt.com/forum/smile.gif

[Gene C.]

System Resources
Windows maintains two resource heaps, each 64 Kb in size: the GDI (Graphics Device Interface) and the USER heap. When either is exhausted, Windows grinds to an halt. Fonts, palettes, icons and /images cause some data to be stored in the GDI heap. The USER heap holds information about menus, short-cut keys and window position. Each of these items is given a unique number (called a handle ) which points to the location where the data is stored. Therein lies the problem: Handles are 16 bits in length and the biggest number you can store in 16 bits is 65,535 (64 Kb). The critical level for resource heaps is 40%. If you fall below, your system becomes unstable.