/* void Cls_OnDrawClipboard(HWND hwnd) */
#define HANDLE_WM_DRAWCLIPBOARD(hwnd, wParam, lParam, fn) \
    ((fn)(hwnd), 0L)
#define FORWARD_WM_DRAWCLIPBOARD(hwnd, fn) \
    (void)(fn)((hwnd), WM_DRAWCLIPBOARD, 0L, 0L)

/* void Cls_OnPaintClipboard(HWND hwnd, HWND hwndCBViewer, const LPPAINTSTRUCT lpPaintStruct) */
#define HANDLE_WM_PAINTCLIPBOARD(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam), (const LPPAINTSTRUCT)GlobalLock((HGLOBAL)(lParam))), GlobalUnlock((HGLOBAL)(lParam)), 0L)
#define FORWARD_WM_PAINTCLIPBOARD(hwnd, hwndCBViewer, lpPaintStruct, fn) \
    (void)(fn)((hwnd), WM_PAINTCLIPBOARD, (WPARAM)(HWND)(hwndCBViewer), (LPARAM)(LPPAINTSTRUCT)(lpPaintStruct))

/* void Cls_OnSizeClipboard(HWND hwnd, HWND hwndCBViewer, const LPRECT lprc) */
#define HANDLE_WM_SIZECLIPBOARD(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam), (const LPRECT)GlobalLock((HGLOBAL)(lParam))), GlobalUnlock((HGLOBAL)(lParam)), 0L)
#define FORWARD_WM_SIZECLIPBOARD(hwnd, hwndCBViewer, lprc, fn) \
    (void)(fn)((hwnd), WM_SIZECLIPBOARD, (WPARAM)(HWND)(hwndCBViewer), (LPARAM)(LPRECT)(lprc))

/* void Cls_OnVScrollClipboard(HWND hwnd, HWND hwndCBViewer, UINT code, int pos) */
#define HANDLE_WM_VSCROLLCLIPBOARD(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam), (UINT)LOWORD(lParam), (int)(short)HIWORD(lParam)), 0L)
#define FORWARD_WM_VSCROLLCLIPBOARD(hwnd, hwndCBViewer, code, pos, fn) \
    (void)(fn)((hwnd), WM_VSCROLLCLIPBOARD, (WPARAM)(HWND)(hwndCBViewer), MAKELPARAM((code), (pos)))

/* void Cls_OnHScrollClipboard(HWND hwnd, HWND hwndCBViewer, UINT code, int pos) */
#define HANDLE_WM_HSCROLLCLIPBOARD(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam), (UINT)LOWORD(lParam), (int)(short)HIWORD(lParam)), 0L)
#define FORWARD_WM_HSCROLLCLIPBOARD(hwnd, hwndCBViewer, code, pos, fn) \
    (void)(fn)((hwnd), WM_HSCROLLCLIPBOARD, (WPARAM)(HWND)(hwndCBViewer), MAKELPARAM((code), (pos)))

/* void Cls_OnAskCBFormatName(HWND hwnd, int cchMax, LPTSTR rgchName) */
#define HANDLE_WM_ASKCBFORMATNAME(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (int)(wParam), (LPTSTR)(lParam)), 0L)
#define FORWARD_WM_ASKCBFORMATNAME(hwnd, cchMax, rgchName, fn) \
    (void)(fn)((hwnd), WM_ASKCBFORMATNAME, (WPARAM)(int)(cchMax), (LPARAM)(rgchName))

/* void Cls_OnChangeCBChain(HWND hwnd, HWND hwndRemove, HWND hwndNext) */
#define HANDLE_WM_CHANGECBCHAIN(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam), (HWND)(lParam)), 0L)
#define FORWARD_WM_CHANGECBCHAIN(hwnd, hwndRemove, hwndNext, fn) \
    (void)(fn)((hwnd), WM_CHANGECBCHAIN, (WPARAM)(HWND)(hwndRemove), (LPARAM)(HWND)(hwndNext))

/* BOOL Cls_OnSetCursor(HWND hwnd, HWND hwndCursor, UINT codeHitTest, UINT msg) */
#define HANDLE_WM_SETCURSOR(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(BOOL)(fn)((hwnd), (HWND)(wParam), (UINT)LOWORD(lParam), (UINT)HIWORD(lParam))
#define FORWARD_WM_SETCURSOR(hwnd, hwndCursor, codeHitTest, msg, fn) \
    (BOOL)(DWORD)(fn)((hwnd), WM_SETCURSOR, (WPARAM)(HWND)(hwndCursor), MAKELPARAM((codeHitTest), (msg)))

/* void Cls_OnSysCommand(HWND hwnd, UINT cmd, int x, int y) */
#define HANDLE_WM_SYSCOMMAND(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (UINT)(wParam), (int)(short)LOWORD(lParam), (int)(short)HIWORD(lParam)), 0L)
#define FORWARD_WM_SYSCOMMAND(hwnd, cmd, x, y, fn) \
    (void)(fn)((hwnd), WM_SYSCOMMAND, (WPARAM)(UINT)(cmd), MAKELPARAM((x), (y)))

/* HWND Cls_MDICreate(HWND hwnd, const LPMDICREATESTRUCT lpmcs) */
#define HANDLE_WM_MDICREATE(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(fn)((hwnd), (LPMDICREATESTRUCT)(lParam))
#define FORWARD_WM_MDICREATE(hwnd, lpmcs, fn) \
    (HWND)(UINT)(DWORD)(fn)((hwnd), WM_MDICREATE, 0L, (LPARAM)(LPMDICREATESTRUCT)(lpmcs))

/* void Cls_MDIDestroy(HWND hwnd, HWND hwndDestroy) */
#define HANDLE_WM_MDIDESTROY(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam)), 0L)
#define FORWARD_WM_MDIDESTROY(hwnd, hwndDestroy, fn) \
    (void)(fn)((hwnd), WM_MDIDESTROY, (WPARAM)(hwndDestroy), 0L)

/* NOTE: Usable only by MDI client windows */
/* void Cls_MDIActivate(HWND hwnd, BOOL fActive, HWND hwndActivate, HWND hwndDeactivate) */
#define HANDLE_WM_MDIACTIVATE(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (BOOL)(lParam == (LPARAM)hwnd), (HWND)(lParam), (HWND)(wParam)), 0L)
#define FORWARD_WM_MDIACTIVATE(hwnd, fActive, hwndActivate, hwndDeactivate, fn) \
    (void)(fn)(hwnd, WM_MDIACTIVATE, (WPARAM)(hwndDeactivate), (LPARAM)(hwndActivate))

/* void Cls_MDIRestore(HWND hwnd, HWND hwndRestore) */
#define HANDLE_WM_MDIRESTORE(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam)), 0L)
#define FORWARD_WM_MDIRESTORE(hwnd, hwndRestore, fn) \
    (void)(fn)((hwnd), WM_MDIRESTORE, (WPARAM)(hwndRestore), 0L)

/* HWND Cls_MDINext(HWND hwnd, HWND hwndCur, BOOL fPrev) */
#define HANDLE_WM_MDINEXT(hwnd, wParam, lParam, fn) \
    (LRESULT)(HWND)(fn)((hwnd), (HWND)(wParam), (BOOL)lParam)
#define FORWARD_WM_MDINEXT(hwnd, hwndCur, fPrev, fn) \
    (HWND)(UINT)(DWORD)(fn)((hwnd), WM_MDINEXT, (WPARAM)(hwndCur), (LPARAM)(fPrev))

/* void Cls_MDIMaximize(HWND hwnd, HWND hwndMaximize) */
#define HANDLE_WM_MDIMAXIMIZE(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HWND)(wParam)), 0L)
#define FORWARD_WM_MDIMAXIMIZE(hwnd, hwndMaximize, fn) \
    (void)(fn)((hwnd), WM_MDIMAXIMIZE, (WPARAM)(hwndMaximize), 0L)

/* BOOL Cls_MDITile(HWND hwnd, UINT cmd) */
#define HANDLE_WM_MDITILE(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(fn)((hwnd), (UINT)(wParam))
#define FORWARD_WM_MDITILE(hwnd, cmd, fn) \
    (BOOL)(DWORD)(fn)((hwnd), WM_MDITILE, (WPARAM)(cmd), 0L)

/* BOOL Cls_MDICascade(HWND hwnd, UINT cmd) */
#define HANDLE_WM_MDICASCADE(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(fn)((hwnd), (UINT)(wParam))
#define FORWARD_WM_MDICASCADE(hwnd, cmd, fn) \
    (BOOL)(DWORD)(fn)((hwnd), WM_MDICASCADE, (WPARAM)(cmd), 0L)

/* void Cls_MDIIconArrange(HWND hwnd) */
#define HANDLE_WM_MDIICONARRANGE(hwnd, wParam, lParam, fn) \
    ((fn)(hwnd), 0L)
#define FORWARD_WM_MDIICONARRANGE(hwnd, fn) \
    (void)(fn)((hwnd), WM_MDIICONARRANGE, 0L, 0L)

/* HWND Cls_MDIGetActive(HWND hwnd) */
#define HANDLE_WM_MDIGETACTIVE(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(fn)(hwnd)
#define FORWARD_WM_MDIGETACTIVE(hwnd, fn) \
    (HWND)(UINT)(DWORD)(fn)((hwnd), WM_MDIGETACTIVE, 0L, 0L)

/* HMENU Cls_MDISetMenu(HWND hwnd, BOOL fRefresh, HMENU hmenuFrame, HMENU hmenuWindow) */
#define HANDLE_WM_MDISETMENU(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(fn)((hwnd), (BOOL)(wParam), (HMENU)(wParam), (HMENU)(lParam))
#define FORWARD_WM_MDISETMENU(hwnd, fRefresh, hmenuFrame, hmenuWindow, fn) \
    (HMENU)(UINT)(DWORD)(fn)((hwnd), WM_MDISETMENU, (WPARAM)((fRefresh) ? (hmenuFrame) : 0), (LPARAM)(hmenuWindow))

/* void Cls_OnChildActivate(HWND hwnd) */
#define HANDLE_WM_CHILDACTIVATE(hwnd, wParam, lParam, fn) \
    ((fn)(hwnd), 0L)
#define FORWARD_WM_CHILDACTIVATE(hwnd, fn) \
    (void)(fn)((hwnd), WM_CHILDACTIVATE, 0L, 0L)

/* BOOL Cls_OnInitDialog(HWND hwnd, HWND hwndFocus, LPARAM lParam) */
#define HANDLE_WM_INITDIALOG(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(BOOL)(fn)((hwnd), (HWND)(wParam), lParam)
#define FORWARD_WM_INITDIALOG(hwnd, hwndFocus, lParam, fn) \
    (BOOL)(DWORD)(fn)((hwnd), WM_INITDIALOG, (WPARAM)(HWND)(hwndFocus), (lParam))

/* HWND Cls_OnNextDlgCtl(HWND hwnd, HWND hwndSetFocus, BOOL fNext) */
#define HANDLE_WM_NEXTDLGCTL(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HWND)(fn)((hwnd), (HWND)(wParam), (BOOL)(lParam))
#define FORWARD_WM_NEXTDLGCTL(hwnd, hwndSetFocus, fNext, fn) \
    (HWND)(UINT)(DWORD)(fn)((hwnd), WM_NEXTDLGCTL, (WPARAM)(HWND)(hwndSetFocus), (LPARAM)(fNext))

/* void Cls_OnParentNotify(HWND hwnd, UINT msg, HWND hwndChild, int idChild) */
#define HANDLE_WM_PARENTNOTIFY(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (UINT)LOWORD(wParam), (HWND)(lParam), (UINT)HIWORD(wParam)), 0L)
#define FORWARD_WM_PARENTNOTIFY(hwnd, msg, hwndChild, idChild, fn) \
    (void)(fn)((hwnd), WM_PARENTNOTIFY, MAKEWPARAM(msg, idChild), (LPARAM)(hwndChild))

/* void Cls_OnEnterIdle(HWND hwnd, UINT source, HWND hwndSource) */
#define HANDLE_WM_ENTERIDLE(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (UINT)(wParam), (HWND)(lParam)), 0L)
#define FORWARD_WM_ENTERIDLE(hwnd, source, hwndSource, fn) \
    (void)(fn)((hwnd), WM_ENTERIDLE, (WPARAM)(UINT)(source), (LPARAM)(HWND)(hwndSource))

/* UINT Cls_OnGetDlgCode(HWND hwnd, LPMSG lpmsg) */
#define HANDLE_WM_GETDLGCODE(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(fn)(hwnd, (LPMSG)(lParam))
#define FORWARD_WM_GETDLGCODE(hwnd, lpmsg, fn) \
    (UINT)(DWORD)(fn)((hwnd), WM_GETDLGCODE, (lpmsg ? lpmsg->wParam : 0), (LPARAM)(LPMSG)(lpmsg))

/* HBRUSH Cls_OnCtlColor(HWND hwnd, HDC hdc, HWND hwndChild, int type) */
#define HANDLE_WM_CTLCOLORMSGBOX(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HBRUSH)(fn)((hwnd), (HDC)(wParam), (HWND)(lParam), CTLCOLOR_MSGBOX)
#define FORWARD_WM_CTLCOLORMSGBOX(hwnd, hdc, hwndChild, fn) \
    (HBRUSH)(UINT)(DWORD)(fn)((hwnd), WM_CTLCOLORMSGBOX, (WPARAM)(HDC)(hdc), (LPARAM)(HWND)(hwndChild))

#define HANDLE_WM_CTLCOLOREDIT(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HBRUSH)(fn)((hwnd), (HDC)(wParam), (HWND)(lParam), CTLCOLOR_EDIT)
#define FORWARD_WM_CTLCOLOREDIT(hwnd, hdc, hwndChild, fn) \
    (HBRUSH)(UINT)(DWORD)(fn)((hwnd), WM_CTLCOLOREDIT, (WPARAM)(HDC)(hdc), (LPARAM)(HWND)(hwndChild))

#define HANDLE_WM_CTLCOLORLISTBOX(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HBRUSH)(fn)((hwnd), (HDC)(wParam), (HWND)(lParam), CTLCOLOR_LISTBOX)
#define FORWARD_WM_CTLCOLORLISTBOX(hwnd, hdc, hwndChild, fn) \
    (HBRUSH)(UINT)(DWORD)(fn)((hwnd), WM_CTLCOLORLISTBOX, (WPARAM)(HDC)(hdc), (LPARAM)(HWND)(hwndChild))

#define HANDLE_WM_CTLCOLORBTN(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HBRUSH)(fn)((hwnd), (HDC)(wParam), (HWND)(lParam), CTLCOLOR_BTN)
#define FORWARD_WM_CTLCOLORBTN(hwnd, hdc, hwndChild, fn) \
    (HBRUSH)(UINT)(DWORD)(fn)((hwnd), WM_CTLCOLORBTN, (WPARAM)(HDC)(hdc), (LPARAM)(HWND)(hwndChild))

#define HANDLE_WM_CTLCOLORDLG(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HBRUSH)(fn)((hwnd), (HDC)(wParam), (HWND)(lParam), CTLCOLOR_DLG)
#define FORWARD_WM_CTLCOLORDLG(hwnd, hdc, hwndChild, fn) \
    (HBRUSH)(UINT)(DWORD)(fn)((hwnd), WM_CTLCOLORDLG, (WPARAM)(HDC)(hdc), (LPARAM)(HWND)(hwndChild))

#define HANDLE_WM_CTLCOLORSCROLLBAR(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HBRUSH)(fn)((hwnd), (HDC)(wParam), (HWND)(lParam), CTLCOLOR_SCROLLBAR)
#define FORWARD_WM_CTLCOLORSCROLLBAR(hwnd, hdc, hwndChild, fn) \
    (HBRUSH)(UINT)(DWORD)(fn)((hwnd), WM_CTLCOLORSCROLLBAR, (WPARAM)(HDC)(hdc), (LPARAM)(HWND)(hwndChild))

#define HANDLE_WM_CTLCOLORSTATIC(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HBRUSH)(fn)((hwnd), (HDC)(wParam), (HWND)(lParam), CTLCOLOR_STATIC)
#define FORWARD_WM_CTLCOLORSTATIC(hwnd, hdc, hwndChild, fn) \
    (HBRUSH)(UINT)(DWORD)(fn)((hwnd), WM_CTLCOLORSTATIC, (WPARAM)(HDC)(hdc), (LPARAM)(HWND)(hwndChild))

/* void Cls_OnSetFont(HWND hwndCtl, HFONT hfont, BOOL fRedraw) */
#define HANDLE_WM_SETFONT(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (HFONT)(wParam), (BOOL)(lParam)), 0L)
#define FORWARD_WM_SETFONT(hwnd, hfont, fRedraw, fn) \
    (void)(fn)((hwnd), WM_SETFONT, (WPARAM)(HFONT)(hfont), (LPARAM)(BOOL)(fRedraw))

/* HFONT Cls_OnGetFont(HWND hwnd) */
#define HANDLE_WM_GETFONT(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(UINT)(HFONT)(fn)(hwnd)
#define FORWARD_WM_GETFONT(hwnd, fn) \
    (HFONT)(UINT)(DWORD)(fn)((hwnd), WM_GETFONT, 0L, 0L)

/* void Cls_OnDrawItem(HWND hwnd, const DRAWITEMSTRUCT * lpDrawItem) */
#define HANDLE_WM_DRAWITEM(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (const DRAWITEMSTRUCT *)(lParam)), 0L)
#define FORWARD_WM_DRAWITEM(hwnd, lpDrawItem, fn) \
    (void)(fn)((hwnd), WM_DRAWITEM, (WPARAM)(((const DRAWITEMSTRUCT *)lpDrawItem)->CtlID), (LPARAM)(const DRAWITEMSTRUCT *)(lpDrawItem))

/* void Cls_OnMeasureItem(HWND hwnd, MEASUREITEMSTRUCT * lpMeasureItem) */
#define HANDLE_WM_MEASUREITEM(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (MEASUREITEMSTRUCT *)(lParam)), 0L)
#define FORWARD_WM_MEASUREITEM(hwnd, lpMeasureItem, fn) \
    (void)(fn)((hwnd), WM_MEASUREITEM, (WPARAM)(((MEASUREITEMSTRUCT *)lpMeasureItem)->CtlID), (LPARAM)(MEASUREITEMSTRUCT *)(lpMeasureItem))

/* void Cls_OnDeleteItem(HWND hwnd, const DELETEITEMSTRUCT * lpDeleteItem) */
#define HANDLE_WM_DELETEITEM(hwnd, wParam, lParam, fn) \
    ((fn)((hwnd), (const DELETEITEMSTRUCT *)(lParam)), 0L)
#define FORWARD_WM_DELETEITEM(hwnd, lpDeleteItem, fn) \
    (void)(fn)((hwnd), WM_DELETEITEM, (WPARAM)(((const DELETEITEMSTRUCT *)(lpDeleteItem))->CtlID), (LPARAM)(const DELETEITEMSTRUCT *)(lpDeleteItem))

/* int Cls_OnCompareItem(HWND hwnd, const COMPAREITEMSTRUCT * lpCompareItem) */
#define HANDLE_WM_COMPAREITEM(hwnd, wParam, lParam, fn) \
    (LRESULT)(DWORD)(int)(fn)((hwnd), (const COMPAREITEMSTRUCT *)(lParam))