smoothscroll.c File Reference

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winerror.h"
#include "winuser.h"
#include "wine/debug.h"

Include dependency graph for smoothscroll.c:

Go to the source code of this file.

Classes
struct	tagSMOOTHSCROLLSTRUCT

Typedefs
typedef BOOL(CALLBACK *	SCROLLWINDOWEXPROC) (HWND, INT, INT, LPRECT, LPRECT, HRGN, LPRECT, DWORD)
typedef struct tagSMOOTHSCROLLSTRUCT	SMOOTHSCROLLSTRUCT

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (commctrl)
BOOL WINAPI	SmoothScrollWindow (const SMOOTHSCROLLSTRUCT *smooth)

Variables
static DWORD	smoothscroll = 2

Typedef Documentation

SCROLLWINDOWEXPROC

typedef BOOL(CALLBACK * SCROLLWINDOWEXPROC) (HWND, INT, INT, LPRECT, LPRECT, HRGN, LPRECT, DWORD)

Definition at line 37 of file smoothscroll.c.

SMOOTHSCROLLSTRUCT

typedef struct tagSMOOTHSCROLLSTRUCT SMOOTHSCROLLSTRUCT

Function Documentation

SmoothScrollWindow()

BOOL WINAPI SmoothScrollWindow

(

const SMOOTHSCROLLSTRUCT *

smooth

)

Definition at line 71 of file smoothscroll.c.

                                                                   {
   LPRECT   lpupdaterect = smooth->lpupdaterect;
   HRGN     hrgnupdate = smooth->hrgnupdate;
   RECT     tmprect;
   DWORD    flags = smooth->flags;
 
   if (smooth->dwSize!=sizeof(SMOOTHSCROLLSTRUCT))
       return FALSE;
 
   if (!lpupdaterect)
       lpupdaterect = &tmprect;
   SetRectEmpty(lpupdaterect);
 
   if (!(flags & 0x40000)) { /* no override, use system wide defaults */
       if (smoothscroll == 2) {
       HKEY hkey;
 
       smoothscroll = 0;
       if (!RegOpenKeyA(HKEY_CURRENT_USER,"Control Panel\\Desktop",&hkey)) {
           DWORD    len = 4;
 
           RegQueryValueExA(hkey,"SmoothScroll",0,0,(LPBYTE)&smoothscroll,&len);
           RegCloseKey(hkey);
       }
       }
       if (!smoothscroll)
       flags |= 0x20000;
   }
 
   if (flags & 0x20000) { /* are we doing jump scrolling? */
       if ((smooth->x2 & 1) && smooth->scrollfun)
       return smooth->scrollfun(
           smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
           smooth->lpcliprect,hrgnupdate,lpupdaterect,
           flags & 0xffff
       );
       else
       return ScrollWindowEx(
           smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
           smooth->lpcliprect,hrgnupdate,lpupdaterect,
           flags & 0xffff
       );
   }
 
   FIXME("(hwnd=%p,flags=%x,x2=%x): should smooth scroll here.\n",
       smooth->hwnd,flags,smooth->x2
   );
   /* FIXME: do timer based smooth scrolling */
   if ((smooth->x2 & 1) && smooth->scrollfun)
       return smooth->scrollfun(
       smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
       smooth->lpcliprect,hrgnupdate,lpupdaterect,
       flags & 0xffff
       );
   else
       return ScrollWindowEx(
       smooth->hwnd,smooth->dx,smooth->dy,smooth->lpscrollrect,
       smooth->lpcliprect,hrgnupdate,lpupdaterect,
       flags & 0xffff
       );
}

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

commctrl

)

Variable Documentation

smoothscroll

DWORD smoothscroll = 2

static

Definition at line 35 of file smoothscroll.c.

Referenced by SmoothScrollWindow().