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

1.1       root        1:  Sample: Using Region-Related API Functions
                      2: 
                      3: Summary:
                      4: 
                      5: The REGIONS sample demonstrates various region-related API
                      6: functions, and allows a user to create rectangular,
                      7: elliptic, and multi-polygon regions. In addition, hit-
                      8: testing a region and combining regions using the different
                      9: region-combination modes is demonstrated.
                     10: 
                     11: More Information:
                     12: 
                     13: When the program has started, create a region by choosing
                     14: one of the items in the Create submenu. At this point, items
                     15: in the Options submenu will be enabled, and hit-testing,
                     16: inversion, and other actions can be performed on the region.
                     17: 
                     18: When a second region is created, items in the Combine
                     19: submenu will be enabled. Choosing one of these items causes
                     20: CombineRgn to be called with the specified combine mode, and
                     21: the two regions are merged into one.
                     22: 
                     23: It is possible to create up to three regions at a time.
                     24: Items in the Options submenu always apply to the most
                     25: recently created (or combined) region. The Erase item
                     26: deletes all existing regions. Items in the Combine submenu
                     27: always apply to the two most recently created (or combined)
                     28: regions.
                     29: 
                     30: The following is a list of the Win32 API functions used in
                     31: this sample:
                     32: 
                     33:    BeginPaint         GetCapture     PtInRegion     
                     34:    CheckMenuItem      GetClientRect  Rectangle      
                     35:    CombineRgn         GetDC          RectInRegion   
                     36:    CreateEllipticRgn  GetMenu        RegisterClass  
                     37:    CreateEllipticRgn  GetMessage     ReleaseCaptur  
                     38:    Indirect                          e
                     39:    CreatePen          GetRgnBox      SelectObject   
                     40:    CreatePolygonRgn   GetStockObjec  SetCapture     
                     41:                       t
                     42:    CreatePolyPolygon  GetSubMenu     SetDlgItemTex  
                     43:    Rgn                               t
                     44:    CreateRectRgn      InvalidateRec  SetRectRgn     
                     45:                       t
                     46:    CreateSolidBrush   InvertRgn      SetROP2        
                     47:    CreateWindow       LoadCursor     ShowWindow     
                     48:    DeleteObject       LoadIcon       TranslateMess  
                     49:                                      age
                     50:    ReleaseDC          LocalAlloc     UpdateWindow   
                     51:    DialogBox          LocalFree      wsprintf       
                     52:    DispatchMessage    LocalHandle                   
                     53:    EnableMenuItem     MessageBeep                   
                     54:    EndDialog          MessageBox                    
                     55:    EndPaint           OffsetRgn                     
                     56:    FillRgn            PolyPolygon                   
                     57:    FrameRgn           PostQuitMessa                 
                     58:                       ge
                     59: 
                     60: 
                     61: 

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