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Annotation of q_a/samples/threads/readme, revision 1.1.1.1

1.1       root        1:  Sample: Using Thread API Functions
                      2: Summary:
                      3: 
                      4: The THREADS sample application shows how to use
                      5: SetThreadPriority, SuspendThread, and ResumeThread.
                      6: 
                      7: More Information:
                      8: 
                      9: To use THREAD, start the application. Two threads will be
                     10: created; one will draw a red rectangle and the other a green
                     11: rectangle. Both of these rectangles move about the window;
                     12: their speed and behavior is based on the thread priority and
                     13: its resumed/suspended status. The priority and status are
                     14: set through menu selections.
                     15: 
                     16: Of special interest is the suspension count. The system
                     17: keeps track of the number of times a thread has been
                     18: suspended and resumed. Each time the thread is suspended,
                     19: the count is incremented; each time it is resumed, the count
                     20: is decremented. The suspension count can either be tracked
                     21: by applications manually, the same way this sample
                     22: application does, or the return value from ResumeThread and
                     23: SuspendThread can be used to obtain the previous suspension
                     24: count before the call was made. Only when the suspension
                     25: count is zero will the thread run.
                     26: 
                     27: A thread has only five priorities that you are allowed to
                     28: use:
                     29: 
                     30:    THREAD_PRIORITY_LOWEST
                     31:    THREAD_PRIORITY_BELOW_NORMAL
                     32:    THREAD_PRIORITY_NORMAL
                     33:    THREAD_PRIORITY_ABOVE_NORMAL
                     34:    THREAD_PRIORITY_HIGHEST
                     35: 
                     36: Other priorities are reserved for use by the system only.
                     37: 
                     38: The following is a list of the Win32 API functions used in
                     39: this sample:
                     40: 
                     41:    CreateSolidBr  GetMessage     Rectangle      Sleep
                     42:    ush
                     43:    CreateThread   GetStockObjec  RegisterClass  SuspendThread
                     44:                   t
                     45:    CreateWindow   GetSystemTime  ReleaseDC      TerminateThre
                     46:                                                 ad
                     47:    DispatchMessa  LoadCursor     ResumeThread   wsprintf
                     48:    ge
                     49:    GetClientRect  LoadIcon       SelectObject   
                     50:    GetDC          MessageBox     SetThreadPrio  
                     51:                                  rity
                     52:    GetLastError   PostQuitMessa  ShowWindow     
                     53:                   ge
                     54: 
                     55: 
                     56: 

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