ext/ResizableLib/ResizableMsgSupport.h

   1 // ResizableMsgSupport.h: some declarations to support custom resizable wnds\r
   2 //\r
   3 /////////////////////////////////////////////////////////////////////////////\r
   4 //\r
   5 // Copyright (C) 2000-2002 by Paolo Messina\r
   6 // (http://www.geocities.com/ppescher - ppescher@yahoo.com)\r
   7 //\r
   8 // The contents of this file are subject to the Artistic License (the "License").\r
   9 // You may not use this file except in compliance with the License. \r
  10 // You may obtain a copy of the License at:\r
  11 // http://www.opensource.org/licenses/artistic-license.html\r
  12 //\r
  13 // If you find this code useful, credits would be nice!\r
  14 //\r
  15 /////////////////////////////////////////////////////////////////////////////\r
  16 \r
  17 #if !defined(AFX_RESIZABLEMSGSUPPORT_H__INCLUDED_)\r
  18 #define AFX_RESIZABLEMSGSUPPORT_H__INCLUDED_\r
  19 \r
  20 #if _MSC_VER > 1000\r
  21 #pragma once\r
  22 #endif // _MSC_VER > 1000\r
  23 \r
  24 typedef struct tagRESIZEPROPERTIES\r
  25 {\r
  26         // wether to ask for resizing properties every time\r
  27         BOOL bAskClipping;\r
  28         BOOL bAskRefresh;\r
  29         // otherwise, use the cached properties\r
  30         BOOL bCachedLikesClipping;\r
  31         BOOL bCachedNeedsRefresh;\r
  32 \r
  33         // initialize with valid data\r
  34         tagRESIZEPROPERTIES() : bAskClipping(TRUE), bAskRefresh(TRUE) {}\r
  35 \r
  36 } RESIZEPROPERTIES, *PRESIZEPROPERTIES, *LPRESIZEPROPERTIES;\r
  37 \r
  38 \r
  39 typedef struct tagCLIPPINGPROPERTY\r
  40 {\r
  41         BOOL bLikesClipping;\r
  42 \r
  43         // initialize with valid data\r
  44         tagCLIPPINGPROPERTY() : bLikesClipping(FALSE) {}\r
  45 \r
  46 } CLIPPINGPROPERTY, *PCLIPPINGPROPERTY, *LPCLIPPINGPROPERTY;\r
  47 \r
  48 \r
  49 typedef struct tagREFRESHPROPERTY\r
  50 {\r
  51         BOOL bNeedsRefresh;\r
  52         RECT rcOld;\r
  53         RECT rcNew;\r
  54 \r
  55         // initialize with valid data\r
  56         tagREFRESHPROPERTY() : bNeedsRefresh(TRUE) {}\r
  57 \r
  58 } REFRESHPROPERTY, *PREFRESHPROPERTY, *LPREFRESHPROPERTY;\r
  59 \r
  60 \r
  61 // registered message to communicate with the library\r
  62 extern const UINT WMU_RESIZESUPPORT;\r
  63 \r
  64 // if the message is implemented the returned value must be non-zero\r
  65 // the default window procedure returns zero for unhandled messages\r
  66 \r
  67 // wParam is one of the following RSZSUP_* values, lParam as specified\r
  68 enum ResizeSupport\r
  69 {\r
  70         RSZSUP_QUERYPROPERTIES  = 101,  // lParam = LPRESIZEPROPERTIES\r
  71         RSZSUP_LIKESCLIPPING    = 102,  // lParam = LPCLIPPINGPROPERTY\r
  72         RSZSUP_NEEDSREFRESH             = 103,  // lParam = LPREFRESHPROPERTY\r
  73         RSZSUP_SHEETPAGEEXHACK  = 104,  // lParam = HWND (source prop.page)\r
  74 };\r
  75 \r
  76 /////////////////////////////////////////////////////////////////////////////\r
  77 // utility functions\r
  78 \r
  79 inline BOOL Send_QueryProperties(HWND hWnd, LPRESIZEPROPERTIES pResizeProperties)\r
  80 {\r
  81         return (0 != SendMessage(hWnd, WMU_RESIZESUPPORT,\r
  82                 RSZSUP_QUERYPROPERTIES, (LPARAM)pResizeProperties));\r
  83 }\r
  84 \r
  85 inline BOOL Send_LikesClipping(HWND hWnd, LPCLIPPINGPROPERTY pClippingProperty)\r
  86 {\r
  87         return (0 != SendMessage(hWnd, WMU_RESIZESUPPORT,\r
  88                 RSZSUP_LIKESCLIPPING, (LPARAM)pClippingProperty));\r
  89 }\r
  90 \r
  91 inline BOOL Send_NeedsRefresh(HWND hWnd, LPREFRESHPROPERTY pRefreshProperty)\r
  92 {\r
  93         return (0 != SendMessage(hWnd, WMU_RESIZESUPPORT,\r
  94                 RSZSUP_NEEDSREFRESH, (LPARAM)pRefreshProperty));\r
  95 }\r
  96 \r
  97 inline void Post_SheetPageExHack(HWND hWndSheet, HWND hWndPage)\r
  98 {\r
  99         PostMessage(hWndSheet, WMU_RESIZESUPPORT,\r
 100                 RSZSUP_SHEETPAGEEXHACK, (LPARAM)hWndPage);\r
 101 }\r
 102 \r
 103 #endif // !defined(AFX_RESIZABLEMSGSUPPORT_H__INCLUDED_)\r