Leaked source code of windows server 2003
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/****************************************************************************
* @doc INTERNAL DIALOGS
*
* @module WDMDialg.cpp | Source file for <c CWDMDialog> class used to display
* video settings and camera controls dialog for WDM devices.
*
* @comm This code is based on the VfW to WDM mapper code written by
* FelixA and E-zu Wu. The original code can be found on
* \\redrum\slmro\proj\wdm10\\src\image\vfw\win9x\raytube.
*
* Documentation by George Shaw on kernel streaming can be found in
* \\popcorn\razzle1\src\spec\ks\ks.doc.
*
* WDM streaming capture is discussed by Jay Borseth in
* \\blues\public\jaybo\WDMVCap.doc.
***************************************************************************/
#include "Precomp.h"
// Globals
extern HINSTANCE g_hInst;
/****************************************************************************
* @doc INTERNAL CWDMDIALOGMETHOD
*
* @mfunc HPROPSHEETPAGE | CWDMDialog | Create | This function creates a new
* page for a property sheet.
*
* @rdesc Returns the handle to the new property sheet if successful, or
* NULL otherwise.
***************************************************************************/
HPROPSHEETPAGE CWDMDialog::Create()
{
PROPSHEETPAGE psp;
psp.dwSize = sizeof(psp);
psp.dwFlags = PSP_USEREFPARENT;
psp.hInstance = g_hInst;
psp.pszTemplate = MAKEINTRESOURCE(m_DlgID);
psp.pfnDlgProc = BaseDlgProc;
psp.pcRefParent = 0;
psp.pfnCallback = (LPFNPSPCALLBACK)NULL;
psp.lParam = (LPARAM)this;
return CreatePropertySheetPage(&psp);
}
/****************************************************************************
* @doc INTERNAL CWDMDIALOGMETHOD
*
* @mfunc BOOL | CWDMDialog | BaseDlgProc | This function implements
* the dialog box procedure for the page of a property sheet.
*
* @parm HWND | hDlg | Handle to dialog box.
*
* @parm UINT | uMessage | Message sent to the dialog box.
*
* @parm WPARAM | wParam | First message parameter.
*
* @parm LPARAM | lParam | Second message parameter.
*
* @rdesc Except in response to the WM_INITDIALOG message, the dialog box
* procedure returns nonzero if it processes the message, and zero if it
* does not.
***************************************************************************/
INT_PTR CALLBACK CWDMDialog::BaseDlgProc(HWND hDlg, UINT uMessage, WPARAM wParam, LPARAM lParam)
{
CWDMDialog * pSV = (CWDMDialog*)GetWindowLong(hDlg,DWL_USER);
FX_ENTRY("CWDMDialog::BaseDlgProc");
switch (uMessage)
{
case WM_HELP:
if (pSV->m_pdwHelp)
WinHelp((HWND)((LPHELPINFO)lParam)->hItemHandle, TEXT("conf.hlp"), HELP_WM_HELP, (DWORD)pSV->m_pdwHelp);
break;
case WM_CONTEXTMENU:
if (pSV->m_pdwHelp)
WinHelp((HWND)wParam, TEXT("conf.hlp"), HELP_CONTEXTMENU, (DWORD)pSV->m_pdwHelp);
break;
case WM_INITDIALOG:
{
LPPROPSHEETPAGE psp=(LPPROPSHEETPAGE)lParam;
pSV=(CWDMDialog*)psp->lParam;
pSV->m_hDlg = hDlg;
SetWindowLong(hDlg,DWL_USER,(LPARAM)pSV);
pSV->m_bInit = FALSE;
pSV->m_bChanged = FALSE;
return TRUE;
}
break;
case WM_COMMAND:
if (pSV)
{
int iRet = pSV->DoCommand(LOWORD(wParam), HIWORD(wParam));
if (!iRet && pSV->m_bInit)
{
PropSheet_Changed(GetParent(pSV->m_hDlg), pSV->m_hDlg);
pSV->m_bChanged = TRUE;
}
return iRet;
}
break;
case WM_HSCROLL:
if (pSV && pSV->m_pCWDMPin && pSV->m_pPC)
{
HWND hwndControl = (HWND) lParam;
HWND hwndSlider;
ULONG i;
TCHAR szTemp[32];
for (i = 0 ; i < pSV->m_dwNumControls ; i++)
{
hwndSlider = GetDlgItem(pSV->m_hDlg, pSV->m_pPC[i].uiSlider);
// find matching slider
if (hwndSlider == hwndControl)
{
LONG lValue = (LONG)SendMessage(GetDlgItem(pSV->m_hDlg, pSV->m_pPC[i].uiSlider), TBM_GETPOS, 0, 0);
pSV->m_pCWDMPin->SetPropertyValue(pSV->m_guidPropertySet, pSV->m_pPC[i].uiProperty, lValue, KSPROPERTY_FLAGS_MANUAL, pSV->m_pPC[i].ulCapabilities);
pSV->m_pPC[i].lCurrentValue = lValue;
wsprintf(szTemp,"%d", lValue);
SetWindowText(GetDlgItem(pSV->m_hDlg, pSV->m_pPC[i].uiCurrent), szTemp);
break;
}
}
}
break;
case WM_NOTIFY:
if (pSV)
{
switch (((NMHDR FAR *)lParam)->code)
{
case PSN_SETACTIVE:
{
// We call out here specially so we can mark this page as having been init'd.
int iRet = pSV->SetActive();
pSV->m_bInit = TRUE;
return iRet;
}
break;
case PSN_APPLY:
// Since we apply the changes on the fly when the user moves the slide bars,
// there isn't much left to do on PSN_APPLY...
if (pSV->m_bChanged)
pSV->m_bChanged = FALSE;
return FALSE;
break;
case PSN_QUERYCANCEL:
return pSV->QueryCancel();
break;
default:
break;
}
}
break;
default:
return FALSE;
}
return TRUE;
}
/****************************************************************************
* @doc INTERNAL CWDMDIALOGMETHOD
*
* @mfunc void | CWDMDialog | CWDMDialog | Property page class constructor.
*
* @parm int | DlgId | Resource ID of the property page dialog.
*
* @parm DWORD | dwNumControls | Number of controls to display in the page.
*
* @parm GUID | guidPropertySet | GUID of the KS property set we are showing in
* the property page.
*
* @parm PPROPSLIDECONTROL | pPC | Pointer to the list of slider controls
* to be displayed in the property page.
*
* @parm PDWORD | pdwHelp | Pointer to the list of help IDs to be displayed
* in the property page.
*
* @parm CWDMPin * | pCWDMPin | Pointer to the kernel streaming object
* we will query the property on.
***************************************************************************/
CWDMDialog::CWDMDialog(int DlgId, DWORD dwNumControls, GUID guidPropertySet, PPROPSLIDECONTROL pPC, PDWORD pdwHelp, CWDMPin *pCWDMPin)
{
FX_ENTRY("CWDMDialog::CWDMDialog");
ASSERT(dwNumControls);
ASSERT(pPC);
m_DlgID = DlgId;
m_pdwHelp = pdwHelp;
m_pCWDMPin = pCWDMPin;
m_dwNumControls = dwNumControls;
m_guidPropertySet = guidPropertySet;
m_pPC = pPC;
}
/****************************************************************************
* @doc INTERNAL CWDMDIALOGMETHOD
*
* @mfunc int | CWDMDialog | SetActive | This function handles
* PSN_SETACTIVE by intializing all the property page controls.
*
* @rdesc Always returns 0.
***************************************************************************/
int CWDMDialog::SetActive()
{
FX_ENTRY("CWDMDialog::SetActive");
DEBUGMSG(ZONE_DIALOGS, ("%s()\n", _fx_));
if (!m_pCWDMPin || !m_pPC)
return 0;
// Returns zero to accept the activation or
// -1 to activate the next or previous page
// (depending on whether the user chose the Next or Back button)
LONG i;
EnableWindow(m_hDlg, TRUE);
if (m_bInit)
return 0;
LONG j, lValue, lMin, lMax, lStep;
ULONG ulCapabilities, ulFlags;
TCHAR szDisplay[256];
for (i = j = 0 ; i < (LONG)m_dwNumControls; i++)
{
// Get the current value
if (m_pCWDMPin->GetPropertyValue(m_guidPropertySet, m_pPC[i].uiProperty, &lValue, &ulFlags, &ulCapabilities))
{
LoadString(g_hInst, m_pPC[i].uiString, szDisplay, sizeof(szDisplay));
DEBUGMSG(ZONE_DIALOGS, ("%s: szDisplay = %s\n", _fx_, szDisplay));
SetWindowText(GetDlgItem(m_hDlg, m_pPC[i].uiStatic), szDisplay);
// Get the Range of Values possible.
if (m_pCWDMPin->GetRangeValues(m_guidPropertySet, m_pPC[i].uiProperty, &lMin, &lMax, &lStep))
{
HWND hTB = GetDlgItem(m_hDlg, m_pPC[i].uiSlider);
DEBUGMSG(ZONE_DIALOGS, ("(%d, %d) / %d = %d \n", lMin, lMax, lStep, (lMax-lMin)/lStep));
SendMessage(hTB, TBM_SETTICFREQ, (lMax-lMin)/lStep, 0);
SendMessage(hTB, TBM_SETRANGE, 0, MAKELONG(lMin, lMax));
}
else
{
ERRORMESSAGE(("%s:Cannot get range values for this property ID = %d\n", _fx_, m_pPC[j].uiProperty));
}
// Save these value for Cancel
m_pPC[i].lLastValue = m_pPC[i].lCurrentValue = lValue;
m_pPC[i].lMin = lMin;
m_pPC[i].lMax = lMax;
m_pPC[i].ulCapabilities = ulCapabilities;
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), TRUE);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiStatic), TRUE);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiAuto), TRUE);
SendMessage(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), TBM_SETPOS, TRUE, lValue);
wsprintf(szDisplay,"%d", lValue);
SetWindowText(GetDlgItem(m_hDlg, m_pPC[i].uiCurrent), szDisplay);
DEBUGMSG(ZONE_DIALOGS, ("%s: Capability = 0x%08lX; Flags=0x%08lX; lValue=%d\r\n", _fx_, ulCapabilities, ulFlags, lValue));
DEBUGMSG(ZONE_DIALOGS, ("%s: switch(%d): \n", _fx_, ulCapabilities & (KSPROPERTY_FLAGS_MANUAL | KSPROPERTY_FLAGS_AUTO)));
switch (ulCapabilities & (KSPROPERTY_FLAGS_MANUAL | KSPROPERTY_FLAGS_AUTO))
{
case KSPROPERTY_FLAGS_MANUAL:
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiAuto), FALSE); // Disable auto
break;
case KSPROPERTY_FLAGS_AUTO:
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), FALSE); // Disable slider;
// always auto!
SendMessage (GetDlgItem(m_hDlg, m_pPC[i].uiAuto),BM_SETCHECK, 1, 0);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiAuto), FALSE); // Disable auto (greyed out)
break;
case (KSPROPERTY_FLAGS_MANUAL | KSPROPERTY_FLAGS_AUTO):
// Set flags
if (ulFlags & KSPROPERTY_FLAGS_AUTO)
{
DEBUGMSG(ZONE_DIALOGS, ("%s: Auto (checked) and slider disabled\n", _fx_));
// Set auto check box; greyed out slider
SendMessage (GetDlgItem(m_hDlg, m_pPC[i].uiAuto),BM_SETCHECK, 1, 0);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), FALSE);
}
else
{
// Unchecked auto; enable slider
SendMessage (GetDlgItem(m_hDlg, m_pPC[i].uiAuto),BM_SETCHECK, 0, 0);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), TRUE);
}
break;
case 0:
default:
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), FALSE); // Disable slider; always auto!
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiAuto), FALSE); // Disable auto (greyed out)
break;
}
j++;
}
else
{
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), FALSE);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiStatic), FALSE);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiAuto), FALSE);
}
}
// Disable the "default" push button;
// or inform user that no control is enabled.
if (j == 0)
EnableWindow(GetDlgItem(m_hDlg, IDC_DEFAULT), FALSE);
return 0;
}
/****************************************************************************
* @doc INTERNAL CWDMDIALOGMETHOD
*
* @mfunc int | CWDMDialog | DoCommand | This function handles WM_COMMAND. This
* is where a click on the Default button or one of the Auto checkboxes
* is handled
*
* @parm WORD | wCmdID | Command ID.
*
* @parm WORD | hHow | Notification code.
*
* @rdesc Always returns 1.
***************************************************************************/
int CWDMDialog::DoCommand(WORD wCmdID, WORD hHow)
{
// If a user select default settings of the video format
if (wCmdID == IDC_DEFAULT)
{
if (m_pCWDMPin && m_pPC)
{
HWND hwndSlider;
LONG lDefValue;
TCHAR szTemp[32];
for (ULONG i = 0 ; i < m_dwNumControls ; i++)
{
hwndSlider = GetDlgItem(m_hDlg, m_pPC[i].uiSlider);
if (IsWindowEnabled(hwndSlider))
{
if (m_pCWDMPin->GetDefaultValue(m_guidPropertySet, m_pPC[i].uiProperty, &lDefValue))
{
if (lDefValue != m_pPC[i].lCurrentValue)
{
m_pCWDMPin->SetPropertyValue(m_guidPropertySet,m_pPC[i].uiProperty, lDefValue, KSPROPERTY_FLAGS_MANUAL, m_pPC[i].ulCapabilities);
SendMessage(hwndSlider, TBM_SETPOS, TRUE, lDefValue);
wsprintf(szTemp,"%d", lDefValue);
SetWindowText(GetDlgItem(m_hDlg, m_pPC[i].uiCurrent), szTemp);
m_pPC[i].lCurrentValue = lDefValue;
}
}
}
}
}
return 1;
}
else if (hHow == BN_CLICKED)
{
if (m_pCWDMPin && m_pPC)
{
for (ULONG i = 0 ; i < m_dwNumControls ; i++)
{
// find matching slider
if (m_pPC[i].uiAuto == wCmdID)
{
if (BST_CHECKED == SendMessage (GetDlgItem(m_hDlg, m_pPC[i].uiAuto),BM_GETCHECK, 1, 0))
{
m_pCWDMPin->SetPropertyValue(m_guidPropertySet,m_pPC[i].uiProperty, m_pPC[i].lCurrentValue, KSPROPERTY_FLAGS_AUTO, m_pPC[i].ulCapabilities);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), FALSE);
}
else
{
m_pCWDMPin->SetPropertyValue(m_guidPropertySet,m_pPC[i].uiProperty, m_pPC[i].lCurrentValue, KSPROPERTY_FLAGS_MANUAL, m_pPC[i].ulCapabilities);
EnableWindow(GetDlgItem(m_hDlg, m_pPC[i].uiSlider), TRUE);
}
break;
}
}
}
}
return 1;
}
/****************************************************************************
* @doc INTERNAL CWDMDIALOGMETHOD
*
* @mfunc int | CWDMDialog | QueryCancel | This function handles
* PSN_QUERYCANCEL by resetting the values of the controls.
*
* @rdesc Always returns 0.
***************************************************************************/
int CWDMDialog::QueryCancel()
{
if (m_pCWDMPin && m_pPC)
{
for (ULONG i = 0 ; i < m_dwNumControls ; i++)
{
if (IsWindowEnabled(GetDlgItem(m_hDlg, m_pPC[i].uiSlider)))
{
if (m_pPC[i].lLastValue != m_pPC[i].lCurrentValue)
m_pCWDMPin->SetPropertyValue(m_guidPropertySet,m_pPC[i].uiProperty, m_pPC[i].lLastValue, KSPROPERTY_FLAGS_MANUAL, m_pPC[i].ulCapabilities);
}
}
}
return 0;
}