/***********************************************************************
* ButtonWndProc_common
*/
LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam, BOOL unicode )
{
RECT rect;
POINT pt;
LONG style = GetWindowLongPtrW( hWnd, GWL_STYLE );
UINT btn_type = get_button_type( style );
LONG state;
HANDLE oldHbitmap;
#ifdef __REACTOS__
PWND pWnd;
pWnd = ValidateHwnd(hWnd);
if (pWnd)
{
if (!pWnd->fnid)
{
NtUserSetWindowFNID(hWnd, FNID_BUTTON);
}
else
{
if (pWnd->fnid != FNID_BUTTON)
{
ERR("Wrong window class for Button! fnId 0x%x\n",pWnd->fnid);
return 0;
}
}
}
#endif
pt.x = (short)LOWORD(lParam);
pt.y = (short)HIWORD(lParam);
switch (uMsg)
{
case WM_GETDLGCODE:
switch(btn_type)
{
case BS_USERBUTTON:
case BS_PUSHBUTTON: return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
case BS_DEFPUSHBUTTON: return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
case BS_RADIOBUTTON:
case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
case BS_GROUPBOX: return DLGC_STATIC;
default: return DLGC_BUTTON;
}
case WM_ENABLE:
paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
break;
case WM_CREATE:
if (!hbitmapCheckBoxes)
{
BITMAP bmp;
hbitmapCheckBoxes = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES));
GetObjectW( hbitmapCheckBoxes, sizeof(bmp), &bmp );
checkBoxWidth = bmp.bmWidth / 4;
checkBoxHeight = bmp.bmHeight / 3;
}
if (btn_type >= MAX_BTN_TYPE)
return -1; /* abort */
/* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */
if (btn_type == BS_USERBUTTON )
{
#ifdef __REACTOS__
style = (style & ~BS_TYPEMASK) | BS_PUSHBUTTON;
SetWindowLongPtrW( hWnd, GWL_STYLE, style );
#else
style = (style & ~BS_TYPEMASK) | BS_PUSHBUTTON;
WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );
#endif
}
set_button_state( hWnd, BST_UNCHECKED );
button_update_uistate( hWnd, unicode );
return 0;
#ifdef __REACTOS__
case WM_NCDESTROY:
NtUserSetWindowFNID(hWnd, FNID_DESTROY);
case WM_DESTROY:
break;
#endif
case WM_ERASEBKGND:
if (btn_type == BS_OWNERDRAW)
{
HDC hdc = (HDC)wParam;
RECT rc;
HBRUSH hBrush;
HWND parent = GetParent(hWnd);
if (!parent) parent = hWnd;
hBrush = GetControlColor( parent, hWnd, hdc, WM_CTLCOLORBTN);
GetClientRect(hWnd, &rc);
FillRect(hdc, &rc, hBrush);
}
return 1;
case WM_PRINTCLIENT:
case WM_PAINT:
if (btnPaintFunc[btn_type])
{
PAINTSTRUCT ps;
HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
int nOldMode = SetBkMode( hdc, OPAQUE );
(btnPaintFunc[btn_type])( hWnd, hdc, ODA_DRAWENTIRE );
SetBkMode(hdc, nOldMode); /* reset painting mode */
if( !wParam ) EndPaint( hWnd, &ps );
}
break;
case WM_KEYDOWN:
if (wParam == VK_SPACE)
{
SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
SetCapture( hWnd );
}
break;
case WM_LBUTTONDBLCLK:
if(style & BS_NOTIFY ||
btn_type == BS_RADIOBUTTON ||
btn_type == BS_USERBUTTON ||
btn_type == BS_OWNERDRAW)
{
BUTTON_NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
break;
}
/* fall through */
case WM_LBUTTONDOWN:
SetCapture( hWnd );
SetFocus( hWnd );
set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
break;
case WM_KEYUP:
if (wParam != VK_SPACE)
break;
/* fall through */
case WM_LBUTTONUP:
state = get_button_state( hWnd );
if (!(state & BUTTON_BTNPRESSED)) break;
state &= BUTTON_NSTATES;
set_button_state( hWnd, state );
if (!(state & BST_PUSHED))
{
ReleaseCapture();
break;
}
SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
ReleaseCapture();
GetClientRect( hWnd, &rect );
if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
{
state = get_button_state( hWnd );
switch(btn_type)
{
case BS_AUTOCHECKBOX:
SendMessageW( hWnd, BM_SETCHECK, !(state & BST_CHECKED), 0 );
break;
case BS_AUTORADIOBUTTON:
SendMessageW( hWnd, BM_SETCHECK, TRUE, 0 );
break;
case BS_AUTO3STATE:
SendMessageW( hWnd, BM_SETCHECK,
(state & BST_INDETERMINATE) ? 0 : ((state & 3) + 1), 0 );
break;
}
BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED);
}
break;
case WM_CAPTURECHANGED:
TRACE("WM_CAPTURECHANGED %p\n", hWnd);
state = get_button_state( hWnd );
if (state & BUTTON_BTNPRESSED)
{
state &= BUTTON_NSTATES;
set_button_state( hWnd, state );
if (state & BST_PUSHED) SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
}
break;
case WM_MOUSEMOVE:
if ((wParam & MK_LBUTTON) && GetCapture() == hWnd)
{
GetClientRect( hWnd, &rect );
SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
}
break;
case WM_SETTEXT:
{
/* Clear an old text here as Windows does */
//
// wine Bug: http://bugs.winehq.org/show_bug.cgi?id=25790
// Patch: http://source.winehq.org/patches/data/70889
// By: Alexander LAW, Replicate Windows behavior of WM_SETTEXT handler regarding WM_CTLCOLOR*
//
if (style & WS_VISIBLE)
{
HDC hdc = GetDC(hWnd);
HBRUSH hbrush;
RECT client, rc;
HWND parent = GetParent(hWnd);
UINT ctlMessage=(btn_type == BS_PUSHBUTTON ||
btn_type == BS_DEFPUSHBUTTON ||
btn_type == BS_PUSHLIKE ||
btn_type == BS_USERBUTTON ||
btn_type == BS_OWNERDRAW) ?
WM_CTLCOLORBTN : WM_CTLCOLORSTATIC;
if (!parent) parent = hWnd;
hbrush = GetControlColor( parent, hWnd, hdc, ctlMessage);
GetClientRect(hWnd, &client);
rc = client;
BUTTON_CalcLabelRect(hWnd, hdc, &rc);
/* Clip by client rect bounds */
if (rc.right > client.right) rc.right = client.right;
if (rc.bottom > client.bottom) rc.bottom = client.bottom;
FillRect(hdc, &rc, hbrush);
ReleaseDC(hWnd, hdc);
}
////
if (unicode) DefWindowProcW( hWnd, WM_SETTEXT, wParam, lParam );
else DefWindowProcA( hWnd, WM_SETTEXT, wParam, lParam );
if (btn_type == BS_GROUPBOX) /* Yes, only for BS_GROUPBOX */
InvalidateRect( hWnd, NULL, TRUE );
else
paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
return 1; /* success. FIXME: check text length */
}
case WM_SETFONT:
set_button_font( hWnd, (HFONT)wParam );
if (lParam) InvalidateRect(hWnd, NULL, TRUE);
break;
case WM_GETFONT:
return (LRESULT)get_button_font( hWnd );
case WM_SETFOCUS:
TRACE("WM_SETFOCUS %p\n",hWnd);
set_button_state( hWnd, get_button_state(hWnd) | BST_FOCUS );
paint_button( hWnd, btn_type, ODA_FOCUS );
if (style & BS_NOTIFY)
BUTTON_NOTIFY_PARENT(hWnd, BN_SETFOCUS);
break;
case WM_KILLFOCUS:
TRACE("WM_KILLFOCUS %p\n",hWnd);
state = get_button_state( hWnd );
set_button_state( hWnd, state & ~BST_FOCUS );
paint_button( hWnd, btn_type, ODA_FOCUS );
if ((state & BUTTON_BTNPRESSED) && GetCapture() == hWnd)
ReleaseCapture();
if (style & BS_NOTIFY)
BUTTON_NOTIFY_PARENT(hWnd, BN_KILLFOCUS);
InvalidateRect( hWnd, NULL, FALSE );
break;
case WM_SYSCOLORCHANGE:
InvalidateRect( hWnd, NULL, FALSE );
break;
case BM_SETSTYLE:
if ((wParam & BS_TYPEMASK) >= MAX_BTN_TYPE) break;
btn_type = wParam & BS_TYPEMASK;
style = (style & ~BS_TYPEMASK) | btn_type;
SetWindowLongPtrW( hWnd, GWL_STYLE, style );
//WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );
/* Only redraw if lParam flag is set.*/
if (lParam)
InvalidateRect( hWnd, NULL, TRUE );
break;
case BM_CLICK:
//// ReactOS
state = get_button_state( hWnd );
if (state & BUTTON_BMCLICK)
break;
set_button_state( hWnd, state | BUTTON_BMCLICK ); // Tracked in STATE_GWL_OFFSET.
////
SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 );
SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 );
////
state = get_button_state( hWnd );
if (!(state & BUTTON_BMCLICK)) break;
state &= ~BUTTON_BMCLICK;
set_button_state( hWnd, state );
////
break;
case BM_SETIMAGE:
/* Check that image format matches button style */
switch (style & (BS_BITMAP|BS_ICON))
{
case BS_BITMAP:
if (wParam != IMAGE_BITMAP) return 0;
break;
case BS_ICON:
if (wParam != IMAGE_ICON) return 0;
break;
default:
return 0;
}
oldHbitmap = (HBITMAP)SetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET, lParam );
InvalidateRect( hWnd, NULL, FALSE );
return (LRESULT)oldHbitmap;
case BM_GETIMAGE:
return GetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET );
case BM_GETCHECK:
return get_button_state( hWnd ) & 3;
case BM_SETCHECK:
if (wParam > maxCheckState[btn_type]) wParam = maxCheckState[btn_type];
state = get_button_state( hWnd );
if ((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON))
{
#ifdef __REACTOS__
if (wParam) style |= WS_TABSTOP;
else style &= ~WS_TABSTOP;
SetWindowLongPtrW( hWnd, GWL_STYLE, style );
#else
if (wParam) WIN_SetStyle( hWnd, WS_TABSTOP, 0 );
else WIN_SetStyle( hWnd, 0, WS_TABSTOP );
#endif
}
if ((state & 3) != wParam)
{
set_button_state( hWnd, (state & ~3) | wParam );
paint_button( hWnd, btn_type, ODA_SELECT );
}
if ((btn_type == BS_AUTORADIOBUTTON) && (wParam == BST_CHECKED) && (style & WS_CHILD))
BUTTON_CheckAutoRadioButton( hWnd );
break;
case BM_GETSTATE:
return get_button_state( hWnd );
case BM_SETSTATE:
state = get_button_state( hWnd );
if (wParam)
set_button_state( hWnd, state | BST_PUSHED );
else
set_button_state( hWnd, state & ~BST_PUSHED );
paint_button( hWnd, btn_type, ODA_SELECT );
break;
case WM_UPDATEUISTATE:
if (unicode)
DefWindowProcW(hWnd, uMsg, wParam, lParam);
else
DefWindowProcA(hWnd, uMsg, wParam, lParam);
if (button_update_uistate(hWnd, unicode))
paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
break;
case WM_NCHITTEST:
if(btn_type == BS_GROUPBOX) return HTTRANSPARENT;
/* fall through */
default:
return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) :
DefWindowProcA(hWnd, uMsg, wParam, lParam);
}
return 0;
}
/***********************************************************************
* ButtonWndProc_common
*/
LRESULT ButtonWndProc_common(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL unicode )
{
RECT rect;
POINT pt;
LONG style = GetWindowLongW( hWnd, GWL_STYLE );
UINT btn_type = get_button_type( style );
LONG state;
HANDLE oldHbitmap;
if (!IsWindow( hWnd )) return 0;
pt.x = (short)LOWORD(lParam);
pt.y = (short)HIWORD(lParam);
switch (uMsg)
{
case WM_GETDLGCODE:
switch(btn_type)
{
case BS_USERBUTTON:
case BS_PUSHBUTTON: return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
case BS_DEFPUSHBUTTON: return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
case BS_RADIOBUTTON:
case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
case BS_GROUPBOX: return DLGC_STATIC;
default: return DLGC_BUTTON;
}
case WM_ENABLE:
paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
break;
case WM_CREATE:
if (!hbitmapCheckBoxes)
{
BITMAP bmp;
hbitmapCheckBoxes = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES));
GetObjectW( hbitmapCheckBoxes, sizeof(bmp), &bmp );
checkBoxWidth = bmp.bmWidth / 4;
checkBoxHeight = bmp.bmHeight / 3;
}
if (btn_type >= MAX_BTN_TYPE)
return -1; /* abort */
/* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */
if (btn_type == BS_USERBUTTON )
{
style = (style & ~BS_TYPEMASK) | BS_PUSHBUTTON;
WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );
}
set_button_state( hWnd, BST_UNCHECKED );
return 0;
case WM_ERASEBKGND:
if (btn_type == BS_OWNERDRAW)
{
HDC hdc = (HDC)wParam;
RECT rc;
HBRUSH hBrush;
HWND parent = GetParent(hWnd);
if (!parent) parent = hWnd;
hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hdc, (LPARAM)hWnd);
if (!hBrush) /* did the app forget to call defwindowproc ? */
hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN,
(WPARAM)hdc, (LPARAM)hWnd);
GetClientRect(hWnd, &rc);
FillRect(hdc, &rc, hBrush);
}
return 1;
case WM_PRINTCLIENT:
case WM_PAINT:
{
PAINTSTRUCT ps;
HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
if (btnPaintFunc[btn_type])
{
int nOldMode = SetBkMode( hdc, OPAQUE );
(btnPaintFunc[btn_type])( hWnd, hdc, ODA_DRAWENTIRE );
SetBkMode(hdc, nOldMode); /* reset painting mode */
}
if ( !wParam ) EndPaint( hWnd, &ps );
break;
}
case WM_KEYDOWN:
if (wParam == VK_SPACE)
{
SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
SetCapture( hWnd );
}
break;
case WM_LBUTTONDBLCLK:
if(style & BS_NOTIFY ||
btn_type == BS_RADIOBUTTON ||
btn_type == BS_USERBUTTON ||
btn_type == BS_OWNERDRAW)
{
BUTTON_NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
break;
}
/* fall through */
case WM_LBUTTONDOWN:
SetCapture( hWnd );
SetFocus( hWnd );
set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
break;
case WM_KEYUP:
if (wParam != VK_SPACE)
break;
/* fall through */
case WM_LBUTTONUP:
state = get_button_state( hWnd );
if (!(state & BUTTON_BTNPRESSED)) break;
state &= BUTTON_NSTATES;
set_button_state( hWnd, state );
if (!(state & BST_PUSHED))
{
ReleaseCapture();
break;
}
SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
GetClientRect( hWnd, &rect );
if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
{
state = get_button_state( hWnd );
switch(btn_type)
{
case BS_AUTOCHECKBOX:
SendMessageW( hWnd, BM_SETCHECK, !(state & BST_CHECKED), 0 );
break;
case BS_AUTORADIOBUTTON:
SendMessageW( hWnd, BM_SETCHECK, TRUE, 0 );
break;
case BS_AUTO3STATE:
SendMessageW( hWnd, BM_SETCHECK,
(state & BST_INDETERMINATE) ? 0 : ((state & 3) + 1), 0 );
break;
}
ReleaseCapture();
BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED);
}
else
{
ReleaseCapture();
}
break;
case WM_CAPTURECHANGED:
TRACE("WM_CAPTURECHANGED %p\n", hWnd);
state = get_button_state( hWnd );
if (state & BUTTON_BTNPRESSED)
{
state &= BUTTON_NSTATES;
set_button_state( hWnd, state );
if (state & BST_PUSHED) SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
}
break;
case WM_MOUSEMOVE:
if ((wParam & MK_LBUTTON) && GetCapture() == hWnd)
{
GetClientRect( hWnd, &rect );
SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
}
break;
case WM_SETTEXT:
{
/* Clear an old text here as Windows does */
HDC hdc = GetDC(hWnd);
HBRUSH hbrush;
RECT client, rc;
HWND parent = GetParent(hWnd);
if (!parent) parent = hWnd;
hbrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC,
(WPARAM)hdc, (LPARAM)hWnd);
if (!hbrush) /* did the app forget to call DefWindowProc ? */
hbrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC,
(WPARAM)hdc, (LPARAM)hWnd);
GetClientRect(hWnd, &client);
rc = client;
BUTTON_CalcLabelRect(hWnd, hdc, &rc);
/* Clip by client rect bounds */
if (rc.right > client.right) rc.right = client.right;
if (rc.bottom > client.bottom) rc.bottom = client.bottom;
FillRect(hdc, &rc, hbrush);
ReleaseDC(hWnd, hdc);
if (unicode) DefWindowProcW( hWnd, WM_SETTEXT, wParam, lParam );
else DefWindowProcA( hWnd, WM_SETTEXT, wParam, lParam );
if (btn_type == BS_GROUPBOX) /* Yes, only for BS_GROUPBOX */
InvalidateRect( hWnd, NULL, TRUE );
else
paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
return 1; /* success. FIXME: check text length */
}
case WM_SETFONT:
set_button_font( hWnd, (HFONT)wParam );
if (lParam) InvalidateRect(hWnd, NULL, TRUE);
break;
case WM_GETFONT:
return (LRESULT)get_button_font( hWnd );
case WM_SETFOCUS:
TRACE("WM_SETFOCUS %p\n",hWnd);
set_button_state( hWnd, get_button_state(hWnd) | BST_FOCUS );
paint_button( hWnd, btn_type, ODA_FOCUS );
if (style & BS_NOTIFY)
BUTTON_NOTIFY_PARENT(hWnd, BN_SETFOCUS);
break;
case WM_KILLFOCUS:
TRACE("WM_KILLFOCUS %p\n",hWnd);
state = get_button_state( hWnd );
set_button_state( hWnd, state & ~BST_FOCUS );
paint_button( hWnd, btn_type, ODA_FOCUS );
if ((state & BUTTON_BTNPRESSED) && GetCapture() == hWnd)
ReleaseCapture();
if (style & BS_NOTIFY)
BUTTON_NOTIFY_PARENT(hWnd, BN_KILLFOCUS);
InvalidateRect( hWnd, NULL, FALSE );
break;
case WM_SYSCOLORCHANGE:
InvalidateRect( hWnd, NULL, FALSE );
break;
case BM_SETSTYLE:
btn_type = wParam & BS_TYPEMASK;
style = (style & ~BS_TYPEMASK) | btn_type;
WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );
/* Only redraw if lParam flag is set.*/
if (lParam)
InvalidateRect( hWnd, NULL, TRUE );
break;
case BM_CLICK:
SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 );
SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 );
break;
case BM_SETIMAGE:
/* Check that image format matches button style */
switch (style & (BS_BITMAP|BS_ICON))
{
case BS_BITMAP:
if (wParam != IMAGE_BITMAP) return 0;
break;
case BS_ICON:
if (wParam != IMAGE_ICON) return 0;
break;
default:
return 0;
}
oldHbitmap = (HBITMAP)SetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET, lParam );
InvalidateRect( hWnd, NULL, FALSE );
return (LRESULT)oldHbitmap;
case BM_GETIMAGE:
return GetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET );
case BM_GETCHECK:
return get_button_state( hWnd ) & 3;
case BM_SETCHECK:
if (wParam > maxCheckState[btn_type]) wParam = maxCheckState[btn_type];
state = get_button_state( hWnd );
if ((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON))
{
if (wParam) WIN_SetStyle( hWnd, WS_TABSTOP, 0 );
else WIN_SetStyle( hWnd, 0, WS_TABSTOP );
}
if ((state & 3) != wParam)
{
set_button_state( hWnd, (state & ~3) | wParam );
paint_button( hWnd, btn_type, ODA_SELECT );
}
if ((btn_type == BS_AUTORADIOBUTTON) && (wParam == BST_CHECKED) && (style & WS_CHILD))
BUTTON_CheckAutoRadioButton( hWnd );
break;
case BM_GETSTATE:
return get_button_state( hWnd );
case BM_SETSTATE:
state = get_button_state( hWnd );
if (wParam)
set_button_state( hWnd, state | BST_PUSHED );
else
set_button_state( hWnd, state & ~BST_PUSHED );
paint_button( hWnd, btn_type, ODA_SELECT );
break;
case WM_NCHITTEST:
if(btn_type == BS_GROUPBOX) return HTTRANSPARENT;
/* fall through */
default:
return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) :
DefWindowProcA(hWnd, uMsg, wParam, lParam);
}
return 0;
}
