www.pudn.com > Winmobile.zip > YaoDurantControls.h

//-------------------------------------------------------------- 
// YaoDurantControls.h : Key definitions for event grabber. 
// 
// Code from _Programming the .NET Compact Framework with C#_ 
// and _Programming the .NET Compact Framework with VB_ 
// (c) Copyright 2002-2003 Paul Yao and David Durant.  
// All rights reserved. 
//-------------------------------------------------------------- 
 
extern "C" int CreateEventGrabber( 
   HWND hwndControl,  
   HWND hwndGrabber); 
extern "C" int DisposeEventGrabber( 
   HWND hwndControl); 
extern "C" int SetEventFlags( 
   HWND hwndControl,  
   int flags); 
extern "C" int GetEventFlags( 
   HWND hwndControl); 
 
//-------------------------------------------------------------- 
// Bit-wise flags for the desired event 
//-------------------------------------------------------------- 
#define EVENT_KEYDOWN    0x0001 
#define EVENT_KEYPRESS   0x0002 
#define EVENT_KEYUP      0x0004 
#define EVENT_MOUSEDOWN  0x0008 
#define EVENT_MOUSEMOVE  0x0010 
#define EVENT_MOUSEUP    0x0020 
 
//-------------------------------------------------------------- 
// Structure holding event grabber details. 
//-------------------------------------------------------------- 
typedef struct __EVENTGRABBER 
{ 
   HWND hwndControl;  // Handle to CF control. 
   HWND hwndGrabber; // Handle to MessageWindow -- dispatcher. 
   int  fEvents;      // Events to handle. 
   WNDPROC lpfn;      // Original window procedure. 
   struct __EVENTGRABBER * pPrev; // Previous item in list. 
   struct __EVENTGRABBER * pNext; // Next item in list. 
} EVENTGRABBER, *LPEVENTGRABBER; 
 
//-------------------------------------------------------------- 
// C++ wrapper class for event grabber list. 
//-------------------------------------------------------------- 
class EventGrabberList 
{ 
private: 
   LPEVENTGRABBER m_pegHead; 
   LPEVENTGRABBER m_pegTail; 
public: 
   EventGrabberList(); 
   BOOL AddEventGrabber(HWND hwndCtrl, HWND hwndGrabber,  
      int flags, WNDPROC lpfn); 
   LPEVENTGRABBER WINAPI FindEventGrabber(HWND hwnd); 
   LPEVENTGRABBER WINAPI FindFirstEventGrabber(); 
   BOOL WINAPI RemoveEventGrabber(HWND hwnd); 
};