Source code of Windows XP (NT5)
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/*******************************************************************************
*
* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
*
* TITLE: PPSCAN.CPP
*
* VERSION: 1.0
*
* AUTHOR: ShaunIv
*
* DATE: 5/17/1999
*
* DESCRIPTION:
*
*******************************************************************************/
#include "precomp.h"
#pragma hdrstop
#include "ppscan.h"
#include "resource.h"
#include "wiacsh.h"
//
// Context Help IDs
//
static const DWORD g_HelpIDs[] =
{
IDC_SCANPROP_BRIGHTNESS_PROMPT, IDH_WIA_BRIGHTNESS,
IDC_SCANPROP_BRIGHTNESS_SLIDER, IDH_WIA_BRIGHTNESS,
IDC_SCANPROP_BRIGHTNESS_EDIT, IDH_WIA_BRIGHTNESS,
IDC_SCANPROP_CONTRAST_PROMPT, IDH_WIA_CONTRAST,
IDC_SCANPROP_CONTRAST_SLIDER, IDH_WIA_CONTRAST,
IDC_SCANPROP_CONTRAST_EDIT, IDH_WIA_CONTRAST,
IDC_SCANPROP_RESOLUTION_PROMPT, IDH_WIA_PIC_RESOLUTION,
IDC_SCANPROP_RESOLUTION_EDIT, IDH_WIA_PIC_RESOLUTION,
IDC_SCANPROP_RESOLUTION_UPDOWN, IDH_WIA_PIC_RESOLUTION,
IDC_SCANPROP_PREVIEW, IDH_WIA_CUSTOM_PREVIEW,
IDC_SCANPROP_DATATYPE_PROMPT, IDH_WIA_IMAGE_TYPE,
IDC_SCANPROP_DATATYPE_LIST, IDH_WIA_IMAGE_TYPE,
IDC_SCANPROP_RESTOREDEFAULT, IDH_WIA_RESTORE_DEFAULT,
IDOK, IDH_OK,
IDCANCEL, IDH_CANCEL,
0, 0
};
extern HINSTANCE g_hInstance;
//
// These are the data types we support
//
static struct
{
int nStringId;
LONG nDataType;
UINT nPreviewWindowIntent;
} g_AvailableColorDepths[] =
{
{ IDS_SCANPROP_COLOR, WIA_DATA_COLOR, BCPWM_COLOR },
{ IDS_SCANPROP_GRAYSCALE, WIA_DATA_GRAYSCALE, BCPWM_GRAYSCALE },
{ IDS_SCANPROP_BLACKANDWHITE, WIA_DATA_THRESHOLD, BCPWM_BW }
};
#define AVAILABLE_COLOR_DEPTH_COUNT (sizeof(g_AvailableColorDepths)/sizeof(g_AvailableColorDepths[0]))
//
// If we don't have a good range of values for the brightness and contrast settings,
// we want to disable the preview control. This is the minumum number of values
// we consider useful for this purpose
//
const int CScannerCommonPropertyPage::c_nMinBrightnessAndContrastSettingCount = 10;
//
// The only constructor
//
CScannerCommonPropertyPage::CScannerCommonPropertyPage( HWND hWnd )
: m_hWnd(hWnd),
m_nProgrammaticSetting(0),
m_nControlsInUse(0)
{
}
CScannerCommonPropertyPage::~CScannerCommonPropertyPage(void)
{
m_hWnd = NULL;
}
LRESULT CScannerCommonPropertyPage::OnKillActive( WPARAM , LPARAM )
{
CWaitCursor wc;
if (!ValidateEditControls())
{
return TRUE;
}
ApplySettings();
return FALSE;
}
LRESULT CScannerCommonPropertyPage::OnSetActive( WPARAM , LPARAM )
{
CWaitCursor wc;
Initialize();
return 0;
}
LRESULT CScannerCommonPropertyPage::OnApply( WPARAM , LPARAM )
{
if (ApplySettings())
{
return PSNRET_NOERROR;
}
else
{
//
// Tell the user there was an error
//
MessageBox( m_hWnd,
CSimpleString( IDS_SCANPROP_UNABLETOWRITE, g_hInstance ),
CSimpleString( IDS_SCANPROP_ERROR_TITLE, g_hInstance ),
MB_ICONINFORMATION );
return PSNRET_INVALID_NOCHANGEPAGE;
}
}
void CScannerCommonPropertyPage::SetText( HWND hWnd, LPCTSTR pszText )
{
m_nProgrammaticSetting++;
SetWindowText( hWnd, pszText );
m_nProgrammaticSetting--;
}
void CScannerCommonPropertyPage::SetText( HWND hWnd, LONG nNumber )
{
SetText( hWnd, CSimpleStringConvert::NumberToString( nNumber ) );
}
bool CScannerCommonPropertyPage::PopulateDataTypes(void)
{
//
// We will be successful if we can add at least one data type
//
bool bSuccess = false;
//
// Clear the list
//
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_RESETCONTENT, 0, 0 );
//
// Try to load the data types for this device
//
CSimpleDynamicArray<LONG> SupportedDataTypes;
LONG nCurrentDataType;
if (PropStorageHelpers::GetProperty( m_pIWiaItem, WIA_IPA_DATATYPE, nCurrentDataType ) &&
PropStorageHelpers::GetPropertyList( m_pIWiaItem, WIA_IPA_DATATYPE, SupportedDataTypes ))
{
//
// Loop through each of the data types we handle, and see if it is supported by the device
//
m_nInitialDataTypeSelection = 0;
for (int i=0;i<AVAILABLE_COLOR_DEPTH_COUNT;i++)
{
//
// Is this one of the data types we support?
//
if (SupportedDataTypes.Find(g_AvailableColorDepths[i].nDataType) != -1)
{
//
// Load the data type string and make sure it is valid
//
CSimpleString strDataTypeName( g_AvailableColorDepths[i].nStringId, g_hInstance );
if (strDataTypeName.Length())
{
//
// Add the string to the combo box
//
LRESULT nIndex = SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_ADDSTRING, 0, reinterpret_cast<LPARAM>(strDataTypeName.String()));
if (nIndex != CB_ERR)
{
//
// Save the index of the global data type struct we are using for this entry
//
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_SETITEMDATA, nIndex, i );
//
// Whew, we made it at least once, so we are using this control
//
bSuccess = true;
//
// Save the current selection and update the preview control
//
if (nCurrentDataType == g_AvailableColorDepths[i].nDataType)
{
m_nInitialDataTypeSelection = static_cast<int>(nIndex);
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_PREVIEW, BCPWM_SETINTENT, 0, g_AvailableColorDepths[i].nPreviewWindowIntent );
}
}
}
}
}
//
// Set the current selection
//
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_SETCURSEL, m_nInitialDataTypeSelection, 0 );
}
return bSuccess;
}
bool CScannerCommonPropertyPage::IsUselessPreviewRange( const CValidWiaSettings &Settings )
{
return (Settings.GetItemCount() < c_nMinBrightnessAndContrastSettingCount);
}
void CScannerCommonPropertyPage::Initialize()
{
//
// Make sure we don't get into an infinite loop
//
m_nProgrammaticSetting++;
//
// Assume we aren't using any controls at all
//
m_nControlsInUse = 0;
//
// Get the valid settings for brightness and set up the associated controls
//
if (!m_ValidBrightnessSettings.Read( m_pIWiaItem, WIA_IPS_BRIGHTNESS ))
{
//
// Disable brightness controls
//
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_PROMPT ), FALSE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_EDIT ), FALSE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_SLIDER ), FALSE );
}
else
{
//
// Enable brightness controls
//
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_PROMPT ), TRUE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_EDIT ), TRUE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_SLIDER ), TRUE );
m_BrightnessSliderAndEdit.Initialize(
GetDlgItem(m_hWnd,IDC_SCANPROP_BRIGHTNESS_SLIDER),
GetDlgItem(m_hWnd,IDC_SCANPROP_BRIGHTNESS_EDIT),
GetDlgItem(m_hWnd,IDC_SCANPROP_PREVIEW),
BCPWM_SETBRIGHTNESS, &m_ValidBrightnessSettings );
//
// Remember that we are using this control
//
m_nControlsInUse |= UsingBrightness;
}
//
// Get the valid settings for contrast and set up the associated controls
//
if (!m_ValidContrastSettings.Read( m_pIWiaItem, WIA_IPS_CONTRAST ))
{
//
// Disable contrast controls
//
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_PROMPT ), FALSE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_EDIT ), FALSE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_SLIDER ), FALSE );
}
else
{
//
// Enable contrast controls
//
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_PROMPT ), TRUE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_EDIT ), TRUE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_SLIDER ), TRUE );
m_ContrastSliderAndEdit.Initialize(
GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_SLIDER),
GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_EDIT),
GetDlgItem(m_hWnd,IDC_SCANPROP_PREVIEW),
BCPWM_SETCONTRAST, &m_ValidContrastSettings );
//
// Remember that we are using this control
//
m_nControlsInUse |= UsingContrast;
}
//
// Should we disable resolution? Assume yes.
//
bool bDisableResolution = true;
//
// Figure out what the *common* list of valid settings for horizontal
// and vertical resolution
//
CValidWiaSettings HorizontalResolution;
if (HorizontalResolution.Read( m_pIWiaItem, WIA_IPS_XRES ))
{
//
// Y Resolution can be read-only, and be linked to X resolution
//
if (PropStorageHelpers::IsReadOnlyProperty(m_pIWiaItem, WIA_IPS_YRES))
{
m_ValidResolutionSettings = HorizontalResolution;
//
// If we made it this far, we have good resolution settings
//
bDisableResolution = false;
}
else
{
CValidWiaSettings VerticalResolution;
if (VerticalResolution.Read( m_pIWiaItem, WIA_IPS_YRES ))
{
if (m_ValidResolutionSettings.FindIntersection(HorizontalResolution,VerticalResolution))
{
//
// If we made it this far, we have good resolution settings
//
bDisableResolution = false;
}
}
}
}
//
// If we can't display resolution, disable it
//
if (bDisableResolution)
{
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_PROMPT ), FALSE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_EDIT ), FALSE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_UPDOWN ), FALSE );
}
else
{
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_PROMPT ), TRUE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_EDIT ), TRUE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_UPDOWN ), TRUE );
m_ResolutionUpDownAndEdit.Initialize(
GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_UPDOWN ),
GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_EDIT ),
&m_ValidResolutionSettings );
//
// Remember that we are using this control
//
m_nControlsInUse |= UsingResolution;
}
//
// If we can't populate datatype, disable it
//
if (!PopulateDataTypes())
{
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_DATATYPE_PROMPT ), FALSE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_DATATYPE_LIST ), FALSE );
}
else
{
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_DATATYPE_PROMPT ), TRUE );
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_DATATYPE_LIST ), TRUE );
m_nControlsInUse |= UsingDataType;
}
//
// This means all controls were disabled
//
if (!m_nControlsInUse)
{
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESTOREDEFAULT ), FALSE );
}
else
{
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_RESTOREDEFAULT ), TRUE );
}
//
// If we are not using brightness or contrast OR if the brightness and contrast values are not useful
// for presenting meaningful feedback, disable the preview control so it doesn't mislead the user.
//
if (!(m_nControlsInUse & (UsingContrast|UsingBrightness)) || IsUselessPreviewRange(m_ValidBrightnessSettings) || IsUselessPreviewRange(m_ValidContrastSettings))
{
EnableWindow( GetDlgItem( m_hWnd, IDC_SCANPROP_PREVIEW ), FALSE );
}
//
// Start responding to EN_CHANGE messages again
//
m_nProgrammaticSetting--;
//
// Make sure the correct image is in the thumbnail
//
OnDataTypeSelChange(0,0);
}
LRESULT CScannerCommonPropertyPage::OnInitDialog( WPARAM, LPARAM lParam )
{
//
// Get the WIA item
//
PROPSHEETPAGE *pPropSheetPage = reinterpret_cast<PROPSHEETPAGE*>(lParam);
if (pPropSheetPage)
{
m_pIWiaItem = reinterpret_cast<IWiaItem*>(pPropSheetPage->lParam);
}
if (!m_pIWiaItem)
{
return -1;
}
//
// Load the preview control bitmaps
//
HBITMAP hBmpColor = reinterpret_cast<HBITMAP>(LoadImage(g_hInstance, MAKEINTRESOURCE(IDB_SCANPROP_BITMAPPHOTO), IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION ));
HBITMAP hBmpGrayscale = reinterpret_cast<HBITMAP>(LoadImage(g_hInstance, MAKEINTRESOURCE(IDB_SCANPROP_BITMAPGRAYSCALE), IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION ));
HBITMAP hBmpBlackAndWhite = reinterpret_cast<HBITMAP>(LoadImage(g_hInstance, MAKEINTRESOURCE(IDB_SCANPROP_BITMAPTEXT), IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION ));
//
// If they all loaded OK, set them
//
if (hBmpColor && hBmpGrayscale && hBmpBlackAndWhite)
{
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_PREVIEW, BCPWM_LOADIMAGE, BCPWM_COLOR, reinterpret_cast<LPARAM>(hBmpColor));
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_PREVIEW, BCPWM_LOADIMAGE, BCPWM_GRAYSCALE, reinterpret_cast<LPARAM>(hBmpGrayscale));
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_PREVIEW, BCPWM_LOADIMAGE, BCPWM_BW, reinterpret_cast<LPARAM>(hBmpBlackAndWhite));
}
else
{
//
// Otherwise delete all of the bitmaps
//
if (hBmpColor)
{
DeleteObject(hBmpColor);
}
if (hBmpGrayscale)
{
DeleteObject(hBmpGrayscale);
}
if (hBmpBlackAndWhite)
{
DeleteObject(hBmpBlackAndWhite);
}
}
return TRUE;
}
LRESULT CScannerCommonPropertyPage::OnHScroll( WPARAM wParam, LPARAM lParam )
{
WIA_PUSH_FUNCTION((TEXT("CScannerCommonPropertyPage::OnHScroll( %08X, %08X )"), wParam, lParam ));
if (m_nProgrammaticSetting)
{
return 0;
}
//
// Contrast
//
if (reinterpret_cast<HWND>(lParam) == GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_SLIDER ) )
{
m_nProgrammaticSetting++;
m_ContrastSliderAndEdit.HandleSliderUpdate();
m_nProgrammaticSetting--;
}
//
// Brightness
//
else if (reinterpret_cast<HWND>(lParam) == GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_SLIDER ) )
{
m_nProgrammaticSetting++;
m_BrightnessSliderAndEdit.HandleSliderUpdate();
m_nProgrammaticSetting--;
}
return 0;
}
LRESULT CScannerCommonPropertyPage::OnVScroll( WPARAM wParam, LPARAM lParam )
{
WIA_PUSH_FUNCTION((TEXT("CScannerCommonPropertyPage::OnVScroll( %08X, %08X )"), wParam, lParam ));
if (m_nProgrammaticSetting)
{
return 0;
}
//
// Resolution
//
if (reinterpret_cast<HWND>(lParam) == GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_UPDOWN ) )
{
m_nProgrammaticSetting++;
m_ResolutionUpDownAndEdit.HandleUpDownUpdate();
m_nProgrammaticSetting--;
}
return 0;
}
void CScannerCommonPropertyPage::OnBrightnessEditChange( WPARAM, LPARAM )
{
if (m_nProgrammaticSetting)
{
return;
}
m_nProgrammaticSetting++;
m_BrightnessSliderAndEdit.HandleEditUpdate();
m_nProgrammaticSetting--;
}
void CScannerCommonPropertyPage::OnContrastEditChange( WPARAM, LPARAM )
{
if (m_nProgrammaticSetting)
{
return;
}
m_nProgrammaticSetting++;
m_ContrastSliderAndEdit.HandleEditUpdate();
m_nProgrammaticSetting--;
}
void CScannerCommonPropertyPage::OnResolutionEditChange( WPARAM, LPARAM )
{
if (m_nProgrammaticSetting)
{
return;
}
m_nProgrammaticSetting++;
m_ResolutionUpDownAndEdit.HandleEditUpdate();
m_nProgrammaticSetting--;
}
void CScannerCommonPropertyPage::OnDataTypeSelChange( WPARAM, LPARAM )
{
if (m_nProgrammaticSetting)
{
return;
}
m_nProgrammaticSetting++;
int nCurSel = static_cast<int>(SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_GETCURSEL, 0, 0 ));
if (nCurSel != CB_ERR)
{
int nDataTypeIndex = static_cast<int>(SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_GETITEMDATA, nCurSel, 0 ));
if (nDataTypeIndex >= 0 && nDataTypeIndex < AVAILABLE_COLOR_DEPTH_COUNT)
{
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_PREVIEW, BCPWM_SETINTENT, 0, g_AvailableColorDepths[nDataTypeIndex].nPreviewWindowIntent );
if (m_nControlsInUse & UsingContrast)
{
if (BCPWM_BW == g_AvailableColorDepths[nDataTypeIndex].nPreviewWindowIntent)
{
EnableWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_PROMPT), FALSE );
ShowWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_PROMPT), SW_HIDE );
EnableWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_SLIDER), FALSE );
ShowWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_SLIDER), SW_HIDE );
EnableWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_EDIT), FALSE );
ShowWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_EDIT), SW_HIDE );
}
else
{
EnableWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_PROMPT), TRUE );
ShowWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_PROMPT), SW_SHOW );
EnableWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_SLIDER), TRUE );
ShowWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_SLIDER), SW_SHOW );
EnableWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_EDIT), TRUE );
ShowWindow( GetDlgItem(m_hWnd,IDC_SCANPROP_CONTRAST_EDIT), SW_SHOW );
}
}
}
}
m_nProgrammaticSetting--;
}
bool CScannerCommonPropertyPage::ValidateEditControls(void)
{
m_nProgrammaticSetting++;
bool bSuccess = true;
//
// Get and set the brightness setting
//
if (m_nControlsInUse & UsingBrightness)
{
if (m_ValidBrightnessSettings.IsValid() && !m_BrightnessSliderAndEdit.ValidateEditControl())
{
m_BrightnessSliderAndEdit.HandleEditUpdate();
m_BrightnessSliderAndEdit.HandleSliderUpdate();
SetFocus( GetDlgItem( m_hWnd, IDC_SCANPROP_BRIGHTNESS_EDIT ) );
CSimpleString strMessage;
strMessage.Format( IDS_SCANPROP_INVALIDEDITVALUE, g_hInstance,
CSimpleString( IDS_SCANPROP_BRIGHTNESS, g_hInstance ).String() );
if (strMessage.Length())
{
MessageBox( m_hWnd,
strMessage,
CSimpleString( IDS_SCANPROP_ERROR_TITLE, g_hInstance ),
MB_ICONINFORMATION );
}
bSuccess = false;
}
}
//
// Get and set the contrast setting
//
if (m_nControlsInUse & UsingContrast)
{
if (m_ValidContrastSettings.IsValid() && !m_ContrastSliderAndEdit.ValidateEditControl())
{
m_ContrastSliderAndEdit.HandleEditUpdate();
m_ContrastSliderAndEdit.HandleSliderUpdate();
SetFocus( GetDlgItem( m_hWnd, IDC_SCANPROP_CONTRAST_EDIT ) );
CSimpleString strMessage;
strMessage.Format( IDS_SCANPROP_INVALIDEDITVALUE, g_hInstance,
CSimpleString( IDS_SCANPROP_CONTRAST, g_hInstance ).String());
if (strMessage.Length())
{
MessageBox( m_hWnd,
strMessage,
CSimpleString( IDS_SCANPROP_ERROR_TITLE, g_hInstance ),
MB_ICONINFORMATION );
}
bSuccess = false;
}
}
//
// Get and set the resolution setting
//
if (m_nControlsInUse & UsingResolution)
{
if (m_ValidResolutionSettings.IsValid() && !m_ResolutionUpDownAndEdit.ValidateEditControl())
{
m_ResolutionUpDownAndEdit.HandleEditUpdate();
m_ResolutionUpDownAndEdit.HandleUpDownUpdate();
SetFocus( GetDlgItem( m_hWnd, IDC_SCANPROP_RESOLUTION_EDIT ) );
CSimpleString strMessage;
strMessage.Format( IDS_SCANPROP_INVALIDEDITVALUE, g_hInstance,
CSimpleString( IDS_SCANPROP_RESOLUTION, g_hInstance ).String());
if (strMessage.Length())
{
MessageBox( m_hWnd,
strMessage,
CSimpleString( IDS_SCANPROP_ERROR_TITLE, g_hInstance ),
MB_ICONINFORMATION );
}
bSuccess = false;
}
}
//
// If we made it this far, we're OK
//
m_nProgrammaticSetting--;
return bSuccess;
}
bool CScannerCommonPropertyPage::ApplySettings(void)
{
//
// Get and set the brightness setting
//
if (m_nControlsInUse & UsingBrightness)
{
LONG nBrightness = m_BrightnessSliderAndEdit.GetValueFromCurrentPos();
if (!PropStorageHelpers::SetProperty( m_pIWiaItem, WIA_IPS_BRIGHTNESS, nBrightness ))
{
return false;
}
}
//
// Get and set the contrast setting
//
if (m_nControlsInUse & UsingBrightness)
{
LONG nContrast = m_ContrastSliderAndEdit.GetValueFromCurrentPos();
if (!PropStorageHelpers::SetProperty( m_pIWiaItem, WIA_IPS_CONTRAST, nContrast ))
{
return false;
}
}
//
// Get and set the resolution setting
//
if (m_nControlsInUse & UsingResolution)
{
LONG nResolution = m_ResolutionUpDownAndEdit.GetValueFromCurrentPos();
if (!PropStorageHelpers::SetProperty( m_pIWiaItem, WIA_IPS_XRES, nResolution ) ||
(!PropStorageHelpers::IsReadOnlyProperty( m_pIWiaItem, WIA_IPS_YRES ) && !PropStorageHelpers::SetProperty( m_pIWiaItem, WIA_IPS_YRES, nResolution )))
{
return false;
}
}
//
// Get, validate and set the data type setting
//
if (m_nControlsInUse & UsingDataType)
{
int nCurSel = static_cast<int>(SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_GETCURSEL, 0, 0 ));
if (nCurSel != CB_ERR)
{
int nDataTypeIndex = static_cast<int>(SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_GETITEMDATA, nCurSel, 0 ));
if (nDataTypeIndex >= 0 && nDataTypeIndex < AVAILABLE_COLOR_DEPTH_COUNT)
{
LONG nDataType = g_AvailableColorDepths[nDataTypeIndex].nDataType;
if (!PropStorageHelpers::SetProperty( m_pIWiaItem, WIA_IPA_DATATYPE, nDataType ))
{
return false;
}
}
}
}
//
// If we made it this far, we're OK
//
return true;
}
void CScannerCommonPropertyPage::OnRestoreDefault( WPARAM, LPARAM )
{
//
// Ignore EN_CHANGE messages
//
m_nProgrammaticSetting++;
//
// Restore the brightness setting
//
if (m_nControlsInUse & UsingBrightness)
{
m_BrightnessSliderAndEdit.Restore();
}
//
// Restore the contrast setting
//
if (m_nControlsInUse & UsingContrast)
{
m_ContrastSliderAndEdit.Restore();
}
//
// Restore the resolution setting
//
if (m_nControlsInUse & UsingResolution)
{
m_ResolutionUpDownAndEdit.Restore();
}
//
// Restore the data type setting
//
if (m_nControlsInUse & UsingDataType)
{
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_DATATYPE_LIST, CB_SETCURSEL, m_nInitialDataTypeSelection, 0 );
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_PREVIEW, BCPWM_SETINTENT, 0, g_AvailableColorDepths[m_nInitialDataTypeSelection].nPreviewWindowIntent );
}
//
// OK, start handling user input
//
m_nProgrammaticSetting--;
//
// Force an update of the data type controls
//
OnDataTypeSelChange(0,0);
}
LRESULT CScannerCommonPropertyPage::OnHelp( WPARAM wParam, LPARAM lParam )
{
return WiaHelp::HandleWmHelp( wParam, lParam, g_HelpIDs );
}
LRESULT CScannerCommonPropertyPage::OnContextMenu( WPARAM wParam, LPARAM lParam )
{
return WiaHelp::HandleWmContextMenu( wParam, lParam, g_HelpIDs );
}
LRESULT CScannerCommonPropertyPage::OnSysColorChange( WPARAM wParam, LPARAM lParam )
{
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_BRIGHTNESS_SLIDER, WM_SYSCOLORCHANGE, wParam, lParam );
SendDlgItemMessage( m_hWnd, IDC_SCANPROP_CONTRAST_SLIDER, WM_SYSCOLORCHANGE, wParam, lParam );
return 0;
}
LRESULT CScannerCommonPropertyPage::OnNotify( WPARAM wParam, LPARAM lParam )
{
SC_BEGIN_NOTIFY_MESSAGE_HANDLERS()
{
SC_HANDLE_NOTIFY_MESSAGE_CODE(PSN_APPLY, OnApply);
SC_HANDLE_NOTIFY_MESSAGE_CODE(PSN_KILLACTIVE,OnKillActive);
SC_HANDLE_NOTIFY_MESSAGE_CODE(PSN_SETACTIVE,OnSetActive);
}
SC_END_NOTIFY_MESSAGE_HANDLERS();
}
LRESULT CScannerCommonPropertyPage::OnCommand( WPARAM wParam, LPARAM lParam )
{
SC_BEGIN_COMMAND_HANDLERS()
{
SC_HANDLE_COMMAND_NOTIFY(EN_CHANGE,IDC_SCANPROP_BRIGHTNESS_EDIT,OnBrightnessEditChange);
SC_HANDLE_COMMAND_NOTIFY(EN_CHANGE,IDC_SCANPROP_CONTRAST_EDIT,OnContrastEditChange);
SC_HANDLE_COMMAND_NOTIFY(EN_CHANGE,IDC_SCANPROP_RESOLUTION_EDIT,OnResolutionEditChange);
SC_HANDLE_COMMAND_NOTIFY(CBN_SELCHANGE,IDC_SCANPROP_DATATYPE_LIST,OnDataTypeSelChange);
SC_HANDLE_COMMAND( IDC_SCANPROP_RESTOREDEFAULT, OnRestoreDefault );
}
SC_END_COMMAND_HANDLERS();
}
INT_PTR CALLBACK CScannerCommonPropertyPage::DialogProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
SC_BEGIN_DIALOG_MESSAGE_HANDLERS(CScannerCommonPropertyPage)
{
SC_HANDLE_DIALOG_MESSAGE( WM_INITDIALOG, OnInitDialog );
SC_HANDLE_DIALOG_MESSAGE( WM_NOTIFY, OnNotify );
SC_HANDLE_DIALOG_MESSAGE( WM_COMMAND, OnCommand );
SC_HANDLE_DIALOG_MESSAGE( WM_HSCROLL, OnHScroll );
SC_HANDLE_DIALOG_MESSAGE( WM_VSCROLL, OnVScroll );
SC_HANDLE_DIALOG_MESSAGE( WM_HELP, OnHelp );
SC_HANDLE_DIALOG_MESSAGE( WM_CONTEXTMENU, OnContextMenu );
SC_HANDLE_DIALOG_MESSAGE( WM_SYSCOLORCHANGE, OnSysColorChange );
}
SC_END_DIALOG_MESSAGE_HANDLERS();
}