360 lines
9 KiB
C
360 lines
9 KiB
C
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/*******************************************************************************
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*
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* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
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*
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* TITLE: SIMCRACK.H
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*
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* VERSION: 1.0
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*
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* AUTHOR: ShaunIv
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*
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* DATE: 5/11/1998
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*
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* DESCRIPTION: Simple Message-crackers
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*
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*******************************************************************************/
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#ifndef ___SIMCRACK_H_INCLUDED
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#define ___SIMCRACK_H_INCLUDED
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// Define these if we're compiling on pre-sundown prepared compiler
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#if !defined(GWLP_USERDATA)
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#define GWLP_USERDATA GWL_USERDATA
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#define GWLP_WNDPROC GWL_WNDPROC
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#define DWLP_USER DWL_USER
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#define DWLP_MSGRESULT DWL_MSGRESULT
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#define SetWindowLongPtr SetWindowLong
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#define GetWindowLongPtr GetWindowLong
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#define INT_PTR LONG
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#endif
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#if (0) // Examples
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/****************************************
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EXAMPLE USAGE
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****************************************/
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// Normal message handlers for normal windows
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LRESULT CALLBACK CMyWindow::WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_MESSAGE_HANDLERS(CMyWindow)
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{
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SC_HANDLE_MESSAGE( WM_SIZE, OnSize );
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SC_HANDLE_MESSAGE( WM_SETFOCUS, OnSetFocus );
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SC_FORWARD_MESSAGE( WM_CLOSE, hWnd );
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}
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SC_HANDLE_REGISTERED_MESSAGE(MyMessage,MyMessageHandler);
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SC_END_MESSAGE_HANDLERS();
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}
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// For use in dialog boxes (handles DWLP_MSGRESULT, etc)
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BOOL CALLBACK CMyDialog::DialogProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_DIALOG_MESSAGE_HANDLERS(CMyDialog)
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{
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SC_HANDLE_DIALOG_MESSAGE( WM_INITDIALOG, OnInitDialog );
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SC_HANDLE_DIALOG_MESSAGE( WM_COMMAND, OnCommand );
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}
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SC_HANDLE_REGISTERED_DIALOG_MESSAGE( MyMessage, MyMessageHandler );
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SC_END_DIALOG_MESSAGE_HANDLERS();
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}
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// WM_NOTIFY message cracker usage:
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LRESULT CMyWindow::OnNotify( WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_NOTIFY_MESSAGE_HANDLERS()
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{
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SC_HANDLE_NOTIFY_MESSAGE_CODE(PSN_SETACTIVE,OnSetActive);
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SC_HANDLE_NOTIFY_MESSAGE_CONTROL(LVN_DBLCLK,IDC_LIST,OnListDblClk);
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}
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SC_END_NOTIFY_MESSAGE_HANDLERS();
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}
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// WM_COMMAND message cracker usage:
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LRESULT CMyWindow::OnCommand( WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_COMMAND_HANDLERS()
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{
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SC_HANDLE_COMMAND_NOTIFY(EN_CHANGE,IDC_EDIT,OnEditChange);
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SC_HANDLE_COMMAND(IDOK,OnOK);
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}
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SC_END_COMMAND_HANDLERS();
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}
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/*
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For an example of a complete class structured to use this method of window encapsulation,
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look at the bottom of the file.
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*/
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#endif // Examples
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/****************************************
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IMPLEMENTATION
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****************************************/
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/****************************************
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Normal message handlers for normal windows
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****************************************/
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#define SC_BEGIN_MESSAGE_HANDLERS(className) \
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className *This = (className*)GetWindowLongPtr(hWnd,GWLP_USERDATA);\
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if (WM_CREATE == uMsg)\
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{\
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This = new className(hWnd);\
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SetWindowLongPtr(hWnd,GWLP_USERDATA,(INT_PTR)This);\
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}\
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else if (WM_NCDESTROY == uMsg)\
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{\
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delete This;\
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This = NULL;\
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SetWindowLongPtr(hWnd,GWLP_USERDATA,0);\
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}\
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switch (uMsg)
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#define SC_HANDLE_MESSAGE(msg,handler) \
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case (msg):\
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{\
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if (This)\
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return This->handler( wParam, lParam );\
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}\
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break
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#define SC_FORWARD_MESSAGE(msg,hwndForward)\
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case (msg):\
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{\
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return SendMessage( hwndForward, msg, wParam, lParam );\
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}\
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break
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#define SC_END_MESSAGE_HANDLERS() \
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return (DefWindowProc(hWnd,uMsg,wParam,lParam))
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#define SC_HANDLE_REGISTERED_MESSAGE(msg,handler)\
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if (This && uMsg == This->msg)\
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{\
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return This->handler( wParam, lParam );\
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}
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/****************************************
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Normal message handlers for reference counted windows
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****************************************/
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#define SC_BEGIN_REFCOUNTED_MESSAGE_HANDLERS(className) \
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className *This = (className*)GetWindowLongPtr(hWnd,GWLP_USERDATA);\
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if (WM_CREATE == uMsg)\
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{\
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This = new className(hWnd);\
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SetWindowLongPtr(hWnd,GWLP_USERDATA,(INT_PTR)This);\
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}\
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else if (WM_NCDESTROY == uMsg)\
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{\
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if (This)\
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{\
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This->Release();\
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This = NULL;\
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}\
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SetWindowLongPtr(hWnd,GWLP_USERDATA,0);\
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}\
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switch (uMsg)
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#define SC_HANDLE_MESSAGE(msg,handler) \
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case (msg):\
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{\
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if (This)\
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return This->handler( wParam, lParam );\
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}\
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break
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#define SC_FORWARD_MESSAGE(msg,hwndForward)\
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case (msg):\
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{\
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return SendMessage( hwndForward, msg, wParam, lParam );\
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}\
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break
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#define SC_END_MESSAGE_HANDLERS() \
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return (DefWindowProc(hWnd,uMsg,wParam,lParam))
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#define SC_HANDLE_REGISTERED_MESSAGE(msg,handler)\
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if (This && uMsg == This->msg)\
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{\
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return This->handler( wParam, lParam );\
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}
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/****************************************
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Dialog box message crackers
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****************************************/
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#define SC_BEGIN_DIALOG_MESSAGE_HANDLERS(className) \
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UINT_PTR bRes = FALSE;\
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className *This = (className *)GetWindowLongPtr(hWnd,DWLP_USER);\
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if (WM_INITDIALOG == uMsg)\
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{\
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This = new className( hWnd );\
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SetWindowLongPtr(hWnd,DWLP_USER,(INT_PTR)This);\
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}\
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else if (WM_NCDESTROY == uMsg)\
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{\
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if (This)\
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delete This;\
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This = NULL;\
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SetWindowLongPtr(hWnd,DWLP_USER,(INT_PTR)This);\
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}\
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switch (uMsg)
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#define SC_HANDLE_DIALOG_MESSAGE(msg,handler) \
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case (msg):\
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{\
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if (This)\
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{\
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LRESULT lRes = This->handler( wParam, lParam );\
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if (WM_INITDIALOG==msg)\
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{\
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bRes = (UINT_PTR)(!lRes);\
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}\
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else if (WM_CTLCOLORBTN==msg || WM_CTLCOLORDLG==msg || WM_CTLCOLOREDIT==msg || WM_CTLCOLORLISTBOX==msg || WM_CTLCOLORMSGBOX==msg || WM_CTLCOLORSCROLLBAR==msg || WM_CTLCOLORSTATIC==msg)\
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{\
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bRes = (UINT_PTR)(lRes);\
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}\
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else bRes = true;\
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SetWindowLongPtr( hWnd, DWLP_MSGRESULT, (INT_PTR)lRes );\
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}\
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}\
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break
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#define SC_HANDLE_REGISTERED_DIALOG_MESSAGE(msg,handler)\
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if (This && uMsg == This->msg)\
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{\
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LRESULT lRes = This->handler( wParam, lParam );\
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SetWindowLongPtr( hWnd, DWLP_MSGRESULT, (INT_PTR)lRes );\
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bRes = true;\
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}
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#define SC_END_DIALOG_MESSAGE_HANDLERS() \
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return (bRes)
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/****************************************
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WM_NOTIFY message crackers
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****************************************/
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#define SC_BEGIN_NOTIFY_MESSAGE_HANDLERS()
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#define SC_HANDLE_NOTIFY_MESSAGE_CODE(_code,proc)\
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if ((_code) == ((LPNMHDR)lParam)->code)\
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return proc( wParam, lParam )
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#define SC_HANDLE_NOTIFY_MESSAGE_CONTROL(_code,id,proc)\
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if ((_code) == ((LPNMHDR)lParam)->code && (id) == (int)wParam)\
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return proc( wParam, lParam )
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#define SC_END_NOTIFY_MESSAGE_HANDLERS()\
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return 0;
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/****************************************
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WM_COMMAND message crackers
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****************************************/
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#define SC_BEGIN_COMMAND_HANDLERS()
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#define SC_HANDLE_COMMAND_NOTIFY(nCode,nIdCtl,handler)\
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if (nCode==(int)HIWORD(wParam) && nIdCtl==(int)LOWORD(wParam))\
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{\
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handler( wParam, lParam );\
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return (0);\
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}
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#define SC_HANDLE_COMMAND(nIdCtl,handler)\
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if (nIdCtl==(int)LOWORD(wParam))\
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{\
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handler( wParam, lParam );\
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return (0);\
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}
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#define SC_END_COMMAND_HANDLERS()\
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return (0)
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#if (0) // More examples
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class CMyWindow
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{
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private:
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HWND m_hWnd;
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private:
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explicit CHideWindow( HWND hWnd )
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: m_hWnd(hWnd)
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{
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}
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public:
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~CMyWindow(void)
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{
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}
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// Standard Windows Message Handlers
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LRESULT OnCreate( WPARAM wParam, LPARAM lParam )
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{
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return 0;
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}
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// WM_COMMAND Handlers
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void OnEditChange( WPARAM wParam, LPARAM lParam )
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{
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}
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void OnOK( WPARAM wParam, LPARAM lParam )
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{
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}
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// WM_NOTIFY Handlers
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LRESULT OnSetActive( WPARAM wParam, LPARAM lParam )
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{
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return 0;
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}
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LRESULT OnListDblClk( WPARAM wParam, LPARAM lParam )
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{
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return 0;
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}
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LRESULT OnNotify( WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_NOTIFY_MESSAGE_HANDLERS()
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{
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SC_HANDLE_NOTIFY_MESSAGE_CODE(PSN_SETACTIVE,OnSetActive);
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SC_HANDLE_NOTIFY_MESSAGE_CONTROL(LVN_DBLCLK,IDC_LIST,OnListDblClk);
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}
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SC_END_NOTIFY_MESSAGE_HANDLERS();
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}
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LRESULT OnCommand( WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_COMMAND_HANDLERS()
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{
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SC_HANDLE_COMMAND_NOTIFY(EN_CHANGE,IDC_EDIT,OnEditChange);
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SC_HANDLE_COMMAND(IDOK,OnOK);
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}
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SC_END_COMMAND_HANDLERS();
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}
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static LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_MESSAGE_HANDLERS(CMyWindow)
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{
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SC_HANDLE_MESSAGE( WM_CREATE, OnCreate );
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}
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SC_END_MESSAGE_HANDLERS();
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}
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};
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#endif // More examples
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#endif // ___SIMCRACK_H_INCLUDED
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