The working set of a process is the set of memory pages currently visible to the process in physical RAM memory. These pages are resident and available for an application to use without triggering a page fault. While increasing your working set size can reduce paging for your application, it can adversely affect the system performance.

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In Enumerating printer forms article the DeviceCapabilities

function is used to mark print forms supported by particular printer. It can be used to retrieve other printer capabilities as well.

The GetKeyState

function retrieves the status of the specified virtual key.

Virtual-Key Codes constants for Windows API Keyboard Input functions

Based on How To Add Custom Table to the Clipboard to be Pasted into Word

To distribute applications that use reports with custom paper size you have to create custom printer forms on every destination PC that runs Windows 2000 or later. The MS KB article Q157172

explains how it can be done manually. However there's a way to do that programmatically using Windows API.

Enumerating of printer forms can be done with Windows API EnumForms function. Contrary to what MSDN says, it returns the list of all printer forms on PC, not just for the specific printer. On other hand, DeviceCapabilities can return a list of supported paper sizes for the printer.

The number of jobs in print queue can be retrieved by simplified version of Enumerating jobs in print queue

Enumerating jobs in a print queue can be done with

• WMI Win32_PrintJob class
• Windows API EnumJobs function.

All jobs from a print queue can be deleted with

• WMI Win32_Printer class and CancelAllJobs method
• Windows API SetPrinter function.