Leaked source code of windows server 2003
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/*++
Copyright (c) 1994-1998, Microsoft Corporation All rights reserved.
Module Name:
mousemov.c
Abstract:
This module contains the routines for the Mouse Pointer Property Sheet
page.
Revision History:
--*/
//
// Include Files.
//
#include "main.h"
#include "util.h"
#include "rc.h"
#include "mousehlp.h"
extern void WINAPI CenterDlgOverParent (HWND hWnd);
#define SAFE_DESTROYICON(hicon) if (hicon) { DestroyIcon(hicon); hicon=NULL; }
//
// Constant Declarations.
//
#define TRAILMIN 2
#define TRAILMAX (TRAILMIN + 5) // range of 8 settings
//
// Motion trackbar parameters.
//
const int MOTION_TB_MIN = 0;
const int MOTION_TB_MAX = 10;
const int MOTION_TB_STEP = 1;
//
// Typedef Declarations.
//
typedef struct
{
int Thresh1;
int Thresh2;
int Accel;
} GETMOUSE;
//
// Dialog Data.
//
typedef struct tag_MouseGenStr
{
int nMotion;
int nOrigMotion;
BOOL fOrigEnhancedMotion;
short nTrailSize;
short nOrigTrailSize;
HWND hWndTrailScroll;
BOOL fOrigSnapTo;
HWND hWndSpeedScroll;
HWND hDlg;
BOOL fOrigVanish;
BOOL fOrigSonar;
} MOUSEPTRSTR, *PMOUSEPTRSTR, *LPMOUSEPTRSTR;
//
// Context Help Ids.
//
const DWORD aMouseMoveHelpIds[] =
{
IDC_GROUPBOX_1, IDH_COMM_GROUPBOX,
MOUSE_SPEEDSCROLL, IDH_MOUSE_POINTERSPEED,
IDC_GROUPBOX_4, IDH_COMM_GROUPBOX,
MOUSE_SNAPDEF, IDH_MOUSE_SNAPTO,
MOUSE_PTRSNAPDEF, IDH_MOUSE_SNAPTO,
IDC_GROUPBOX_5, IDH_COMM_GROUPBOX,
MOUSE_TRAILS, IDH_MOUSE_POINTER_TRAILS,
MOUSE_TRAILSCROLLTXT1, IDH_MOUSE_POINTER_TRAILS,
MOUSE_TRAILSCROLLTXT2, IDH_MOUSE_POINTER_TRAILS,
MOUSE_TRAILSCROLL, IDH_MOUSE_POINTER_TRAILS,
MOUSE_VANISH, IDH_MOUSE_VANISH,
MOUSE_SONAR, IDH_MOUSE_SONAR,
MOUSE_ENHANCED_MOTION, IDH_MOUSE_ENHANCED_MOTION,
0,0
};
BOOL
_IsValidTrackbarMotionValue(
int nMotionTrackbar
)
{
return (MOTION_TB_MIN <= nMotionTrackbar && MOTION_TB_MAX >= nMotionTrackbar);
}
//
// Sets the mouse acceleration settings.
// If the "Enhanced Motion" checkbox is checked we disable acceleration and
// let USER handle it based on the "motion" setting.
// If the checkbox is unchecked, we default to what was "low" acceleration
// in Windows 2000. Therefore, it is critical that the MOUSE_ENHANCED_MOTION
// checkbox be in the proper configuration before calling this function.
//
DWORD
_SetPointerAcceleration(
HWND hwndDlg,
UINT fWinIni
)
{
DWORD dwResult = ERROR_SUCCESS;
GETMOUSE gm = { 0, 0, 0 };
if (IsDlgButtonChecked(hwndDlg, MOUSE_ENHANCED_MOTION))
{
gm.Thresh1 = 6;
gm.Thresh2 = 10;
gm.Accel = 1;
}
if (!SystemParametersInfo(SPI_SETMOUSE, 0, (PVOID)&gm, fWinIni))
{
dwResult = GetLastError();
ASSERTMSG(0,
"SystemParametersInfo(SPI_SETMOUSE) failed with error %d",
dwResult);
}
return dwResult;
}
//
// Sets the mouse motion settings based on the current position of
// the motion trackbar and the configuration of the "enhanced motion"
// checkbox.
//
DWORD
_SetPointerMotion(
HWND hwndDlg,
int nMotionTrackbar, // Trackbar position [0 - 10]
UINT fWinIni
)
{
DWORD dwResult = ERROR_SUCCESS;
int nSpiSpeedValue;
//
// Calculations below depend on a trackbar max value of 10.
// If the trackbar scaling changes, the expressions calculating
// the system parameter below must also change.
//
ASSERT(0 == MOTION_TB_MIN);
ASSERT(10 == MOTION_TB_MAX);
ASSERT(_IsValidTrackbarMotionValue(nMotionTrackbar));
if (0 == nMotionTrackbar)
{
//
// SPI_SETMOUSESPEED doesn't accept 0 so we set a lower-bound
// of 1.
//
nSpiSpeedValue = 1;
} else {
nSpiSpeedValue = nMotionTrackbar * 2;
}
//
// Ensure pointer acceleration is correctly set before setting
// the speed value.
//
dwResult = _SetPointerAcceleration(hwndDlg, fWinIni);
if (ERROR_SUCCESS == dwResult)
{
if (!SystemParametersInfo(SPI_SETMOUSESPEED,
0,
IntToPtr(nSpiSpeedValue),
fWinIni))
{
dwResult = GetLastError();
ASSERTMSG(0,
"SystemParametersInfo(SPI_SETMOUSESPEED) failed with error %d",
dwResult);
}
}
return dwResult;
}
//
// Retrieves the motion trackbar setting based on the values returned
// by SystemParametersInfo.
//
DWORD
_GetPointerMotion(
HWND hwndDlg,
int *pnMotionTrackbar,
BOOL *pfEnhancedMotion
)
{
BOOL fEnhancedMotion = FALSE;
int nSpiSpeedValue = 0;
int nMotionTrackbar = 0;
GETMOUSE gm;
DWORD dwResult = ERROR_SUCCESS;
ASSERT(0 == MOTION_TB_MIN);
ASSERT(10 == MOTION_TB_MAX);
//
// Read the speed setting from USER.
//
if (!SystemParametersInfo(SPI_GETMOUSESPEED,
0,
&nSpiSpeedValue,
FALSE) ||
!SystemParametersInfo(SPI_GETMOUSE,
0,
&gm,
FALSE))
{
dwResult = GetLastError();
ASSERTMSG(0,
"SystemParametersInfo failed with error %d",
dwResult);
}
else
{
//
// USER is no longer exposing the old acceleration algorithm. Thus,
// if acceleration is on, then "Enhanced Motion" is (since it's the
// only acceleration algorithm supported).
//
if (gm.Accel)
{
//
// Enhanced.
//
fEnhancedMotion = TRUE;
}
if (1 <= nSpiSpeedValue && 20 >= nSpiSpeedValue)
{
//
// Classic.
//
nMotionTrackbar = nSpiSpeedValue / 2;
}
else
{
//
// Invalid value. Default to classic mid-point.
//
nMotionTrackbar = 5;
}
}
ASSERT(_IsValidTrackbarMotionValue(nMotionTrackbar));
if (NULL != pfEnhancedMotion)
{
*pfEnhancedMotion = fEnhancedMotion;
}
if (NULL != pnMotionTrackbar)
{
*pnMotionTrackbar = nMotionTrackbar;
}
return dwResult;
}
////////////////////////////////////////////////////////////////////////////
//
// DestroyMousePtrDlg
//
////////////////////////////////////////////////////////////////////////////
void DestroyMousePtrDlg(
PMOUSEPTRSTR pMstr)
{
HWND hDlg;
ASSERT( pMstr )
if( pMstr )
{
hDlg = pMstr->hDlg;
LocalFree( (HGLOBAL)pMstr );
SetWindowLongPtr( hDlg, DWLP_USER, 0 );
}
}
////////////////////////////////////////////////////////////////////////////
//
// EnableTrailScroll
//
////////////////////////////////////////////////////////////////////////////
void EnableTrailScroll(
HWND hDlg,
BOOL val)
{
EnableWindow(GetDlgItem(hDlg, MOUSE_TRAILSCROLL), val);
EnableWindow(GetDlgItem(hDlg, MOUSE_TRAILSCROLLTXT1), val);
EnableWindow(GetDlgItem(hDlg, MOUSE_TRAILSCROLLTXT2), val);
}
////////////////////////////////////////////////////////////////////////////
//
// InitMousePtrDlg
//
////////////////////////////////////////////////////////////////////////////
BOOL InitMousePtrDlg(
HWND hDlg)
{
PMOUSEPTRSTR pMstr = NULL;
BOOL fSnapTo = FALSE; //default
BOOL fVanish = FALSE; //default
BOOL fSonar = FALSE; //default
BOOL fEnhancedMotion = FALSE;
short nTrails = 0; //default
pMstr = (PMOUSEPTRSTR)LocalAlloc(LPTR, sizeof(MOUSEPTRSTR));
if (pMstr == NULL)
{
return (TRUE);
}
SetWindowLongPtr(hDlg, DWLP_USER, (LONG_PTR)pMstr);
pMstr->hDlg = hDlg;
//
// Mouse Trails
//
SystemParametersInfo(SPI_GETMOUSETRAILS, 0, &nTrails, 0);
pMstr->nOrigTrailSize = pMstr->nTrailSize = nTrails;
SendDlgItemMessage( hDlg,
MOUSE_TRAILSCROLL,
TBM_SETRANGE,
0,
MAKELONG(TRAILMIN, TRAILMAX) );
CheckDlgButton(hDlg, MOUSE_TRAILS, (pMstr->nTrailSize > 1));
if (pMstr->nTrailSize > 1)
{
SendDlgItemMessage( hDlg,
MOUSE_TRAILSCROLL,
TBM_SETPOS,
TRUE,
(LONG)pMstr->nTrailSize );
}
else
{
pMstr->nTrailSize = TRAILMAX;
EnableTrailScroll(hDlg, FALSE);
SendDlgItemMessage( hDlg,
MOUSE_TRAILSCROLL,
TBM_SETPOS,
TRUE,
(LONG)pMstr->nTrailSize );
}
//
// Enable or disable the Snap To Default Checkbutton
//
SystemParametersInfo(SPI_GETSNAPTODEFBUTTON, 0, (PVOID)&fSnapTo, FALSE);
pMstr->fOrigSnapTo = fSnapTo;
CheckDlgButton(hDlg, MOUSE_SNAPDEF, fSnapTo);
//
//Enable or disable the Sonar Checkbutton
//
SystemParametersInfo(SPI_GETMOUSESONAR, 0, (PVOID)&fSonar, FALSE);
pMstr->fOrigSonar = fSonar;
CheckDlgButton(hDlg, MOUSE_SONAR, fSonar);
//
//Enable or disable the Vanish Checkbutton
//
SystemParametersInfo(SPI_GETMOUSEVANISH, 0, (PVOID)&fVanish, FALSE);
pMstr->fOrigVanish = fVanish;
CheckDlgButton(hDlg, MOUSE_VANISH, fVanish);
//
// Mouse Speed
//
_GetPointerMotion(hDlg, &pMstr->nOrigMotion, &fEnhancedMotion);
CheckDlgButton(hDlg, MOUSE_ENHANCED_MOTION, fEnhancedMotion);
pMstr->nMotion = pMstr->nOrigMotion;
pMstr->fOrigEnhancedMotion = fEnhancedMotion;
pMstr->hWndTrailScroll = GetDlgItem(hDlg, MOUSE_TRAILSCROLL);
pMstr->hWndSpeedScroll = GetDlgItem(hDlg, MOUSE_SPEEDSCROLL);
SendDlgItemMessage( hDlg,
MOUSE_SPEEDSCROLL,
TBM_SETRANGE,
0,
MAKELONG(MOTION_TB_MIN, MOTION_TB_MAX) );
SendDlgItemMessage( hDlg,
MOUSE_SPEEDSCROLL,
TBM_SETTICFREQ,
MOTION_TB_STEP,
0);
SendDlgItemMessage( hDlg,
MOUSE_SPEEDSCROLL,
TBM_SETLINESIZE,
0,
MOTION_TB_STEP);
SendDlgItemMessage( hDlg,
MOUSE_SPEEDSCROLL,
TBM_SETPOS,
TRUE,
(LONG)pMstr->nOrigMotion);
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// TrailScroll
//
////////////////////////////////////////////////////////////////////////////
void TrailScroll(
WPARAM wParam,
LPARAM lParam,
PMOUSEPTRSTR pMstr)
{
pMstr->nTrailSize = (short)SendMessage((HWND)lParam, TBM_GETPOS, 0, 0L);
SystemParametersInfo(SPI_SETMOUSETRAILS, pMstr->nTrailSize, 0,0);
}
////////////////////////////////////////////////////////////////////////////
//
// SpeedScroll
//
////////////////////////////////////////////////////////////////////////////
void SpeedScroll(
WPARAM wParam,
LPARAM lParam,
PMOUSEPTRSTR pMstr)
{
const HWND hwndTrackbar = (HWND)lParam;
pMstr->nMotion = (int)SendMessage(hwndTrackbar, TBM_GETPOS, 0, 0L);
//
// Update speed when they let go of the thumb.
//
if (LOWORD(wParam) == SB_ENDSCROLL)
{
const HWND hwndDlg = GetParent(hwndTrackbar);
_SetPointerMotion(hwndDlg, pMstr->nMotion, SPIF_SENDCHANGE);
}
}
//
// User checked or unchecked the "Enhanced pointer motion" checkbox.
//
void
_OnEnhancedMotionChecked(
PMOUSEPTRSTR pMstr
)
{
const HWND hwndTrackbar = (HWND)pMstr->hWndSpeedScroll;
const HWND hwndDlg = GetParent(hwndTrackbar);
pMstr->nMotion = (int)SendMessage(hwndTrackbar, TBM_GETPOS, 0, 0L);
_SetPointerMotion(hwndDlg, pMstr->nMotion, SPIF_SENDCHANGE);
}
////////////////////////////////////////////////////////////////////////////
//
// MouseMovDlg
//
////////////////////////////////////////////////////////////////////////////
INT_PTR CALLBACK MouseMovDlg(
HWND hDlg,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
PMOUSEPTRSTR pMstr = NULL;
BOOL bRet = FALSE;
pMstr = (PMOUSEPTRSTR)GetWindowLongPtr(hDlg, DWLP_USER);
switch (message)
{
case ( WM_INITDIALOG ) :
{
bRet = InitMousePtrDlg(hDlg);
break;
}
case ( WM_DESTROY ) :
{
DestroyMousePtrDlg(pMstr);
break;
}
case ( WM_HSCROLL ) :
{
SendMessage(GetParent(hDlg), PSM_CHANGED, (WPARAM)hDlg, 0L);
if ((HWND)lParam == pMstr->hWndSpeedScroll)
{
SpeedScroll(wParam, lParam, pMstr);
}
else if ((HWND)lParam == pMstr->hWndTrailScroll)
{
TrailScroll(wParam, lParam, pMstr);
}
break;
}
case ( WM_COMMAND ) :
{
switch (LOWORD(wParam))
{
case ( MOUSE_TRAILS ) :
{
if (IsDlgButtonChecked(hDlg, MOUSE_TRAILS))
{
EnableTrailScroll(hDlg, TRUE);
pMstr->nTrailSize =
(int)SendMessage( pMstr->hWndTrailScroll,
TBM_GETPOS,
0,
0 );
SystemParametersInfo( SPI_SETMOUSETRAILS,
pMstr->nTrailSize,
0,
0 );
}
else
{
EnableTrailScroll(hDlg, FALSE);
SystemParametersInfo(SPI_SETMOUSETRAILS, 0, 0, 0);
}
SendMessage( GetParent(hDlg),
PSM_CHANGED,
(WPARAM)hDlg,
0L );
break;
}
case ( MOUSE_SNAPDEF ) :
{
SystemParametersInfo( SPI_SETSNAPTODEFBUTTON,
IsDlgButtonChecked(hDlg, MOUSE_SNAPDEF),
0,
FALSE );
SendMessage( GetParent(hDlg),
PSM_CHANGED,
(WPARAM)hDlg,
0L );
break;
}
case ( MOUSE_SONAR ) :
{
SystemParametersInfo( SPI_SETMOUSESONAR,
0,
IntToPtr( IsDlgButtonChecked(hDlg, MOUSE_SONAR) ),
FALSE );
SendMessage( GetParent(hDlg),
PSM_CHANGED,
(WPARAM)hDlg,
0L );
break;
}
case ( MOUSE_VANISH ) :
{
SystemParametersInfo( SPI_SETMOUSEVANISH,
0,
IntToPtr( IsDlgButtonChecked(hDlg, MOUSE_VANISH) ),
FALSE );
SendMessage( GetParent(hDlg),
PSM_CHANGED,
(WPARAM)hDlg,
0L );
break;
}
case ( MOUSE_ENHANCED_MOTION ) :
_OnEnhancedMotionChecked(pMstr);
SendMessage( GetParent(hDlg),
PSM_CHANGED,
(WPARAM)hDlg,
0L );
break;
}
break;
}
case ( WM_NOTIFY ) :
{
switch (((NMHDR *)lParam)->code)
{
case ( PSN_APPLY ) :
{
short nTrails = 0;
BOOL fSnapTo = FALSE;
BOOL fSonar = FALSE;
BOOL fVanish = FALSE;
//
// Change cursor to hour glass.
//
HourGlass(TRUE);
//
// Apply Mouse trails setting.
//
nTrails = (IsDlgButtonChecked(hDlg, MOUSE_TRAILS)) ? pMstr->nTrailSize : 0;
SystemParametersInfo( SPI_SETMOUSETRAILS,
nTrails,
0,
SPIF_UPDATEINIFILE |
SPIF_SENDCHANGE );
pMstr->nOrigTrailSize = pMstr->nTrailSize = nTrails;
//
// Apply Snap-To-Default setting.
//
fSnapTo = IsDlgButtonChecked(hDlg, MOUSE_SNAPDEF);
if (fSnapTo != pMstr->fOrigSnapTo)
{
SystemParametersInfo( SPI_SETSNAPTODEFBUTTON,
fSnapTo,
0,
SPIF_UPDATEINIFILE |
SPIF_SENDCHANGE );
pMstr->fOrigSnapTo = fSnapTo;
}
//
// Apply Sonar setting.
//
fSonar = IsDlgButtonChecked(hDlg, MOUSE_SONAR);
if (fSonar != pMstr->fOrigSonar)
{
SystemParametersInfo( SPI_SETMOUSESONAR,
0,
IntToPtr(fSonar),
SPIF_UPDATEINIFILE |
SPIF_SENDCHANGE );
pMstr->fOrigSonar = fSonar;
}
//
// Apply Vanish setting.
//
fVanish = IsDlgButtonChecked(hDlg, MOUSE_VANISH);
if (fVanish != pMstr->fOrigVanish)
{
SystemParametersInfo( SPI_SETMOUSEVANISH,
0,
IntToPtr(fVanish),
SPIF_UPDATEINIFILE |
SPIF_SENDCHANGE );
pMstr->fOrigVanish = fVanish;
}
//
// Apply Mouse Speed setting.
//
_SetPointerMotion(hDlg, pMstr->nMotion, SPIF_UPDATEINIFILE | SPIF_SENDCHANGE);
pMstr->fOrigEnhancedMotion = IsDlgButtonChecked(hDlg, MOUSE_ENHANCED_MOTION);
pMstr->nOrigMotion = pMstr->nMotion;
HourGlass(FALSE);
break;
}
case ( PSN_RESET ) :
{
//
// Restore the original Mouse Trails setting.
//
SystemParametersInfo( SPI_SETMOUSETRAILS,
pMstr->nOrigTrailSize,
0,
0 );
//
// Restore the original Snap-To-Default setting .
//
SystemParametersInfo( SPI_SETSNAPTODEFBUTTON,
pMstr->fOrigSnapTo,
0,
0 );
//
// Restore the original Sonar setting.
//
SystemParametersInfo( SPI_SETMOUSESONAR,
0,
IntToPtr(pMstr->fOrigSonar),
0);
//
// Restore the original Vanish setting.
//
SystemParametersInfo( SPI_SETMOUSEVANISH,
0,
IntToPtr(pMstr->fOrigVanish),
0);
//
// Restore the original Mouse Motion value.
//
CheckDlgButton(hDlg, MOUSE_ENHANCED_MOTION, pMstr->fOrigEnhancedMotion);
_SetPointerMotion(hDlg, pMstr->nOrigMotion, FALSE);
break;
}
default :
{
return (FALSE);
}
}
break;
}
case ( WM_HELP ) : // F1
{
WinHelp( (HWND)((LPHELPINFO)lParam)->hItemHandle,
HELP_FILE,
HELP_WM_HELP,
(DWORD_PTR)(LPTSTR)aMouseMoveHelpIds );
break;
}
case ( WM_CONTEXTMENU ) : // right mouse click
{
WinHelp( (HWND)wParam,
HELP_FILE,
HELP_CONTEXTMENU,
(DWORD_PTR)(LPTSTR)aMouseMoveHelpIds );
break;
}
case ( WM_DISPLAYCHANGE ) :
case ( WM_WININICHANGE ) :
case ( WM_SYSCOLORCHANGE ) :
{
SHPropagateMessage(hDlg, message, wParam, lParam, TRUE);
return TRUE;
}
default :
{
return (FALSE);
}
}
return (TRUE);
}