PWLX_DIALOG_BOX_PARAM callback function (winwlx.h)

[The WlxDialogBoxParam function is no longer available for use as of Windows Server 2008 and Windows Vista.]

Called by GINA to initialize dialog box controls and then create a modal dialog box from a dialog box template resource.

Note   GINA DLLs are ignored in Windows Vista.
 

Syntax

PWLX_DIALOG_BOX_PARAM PwlxDialogBoxParam;

int PwlxDialogBoxParam(
  HANDLE hWlx,
  HANDLE hInst,
  LPWSTR lpszTemplate,
  HWND hwndOwner,
  DLGPROC dlgprc,
  LPARAM dwInitParam
)
{...}

Parameters

hWlx

Specifies the Winlogon handle passed to GINA in the WlxInitialize call.

hInst

Specifies an instance of the module whose executable file contains the dialog box template.

lpszTemplate

Specifies the dialog box template. This parameter is either the address of a null-terminated character string that specifies the name of the dialog box template, or an integer value that specifies the resource identifier of the dialog box template. If the parameter specifies a resource identifier, its high-order word must be zero and its low-order word must contain the identifier. You can use the MAKEINTRESOURCE macro to create this value.

hwndOwner

Specifies the window that owns the dialog box.

dlgprc

Points to the dialog box procedure. For more information about the dialog box procedure, see DialogProc.

dwInitParam

Specifies the value to pass to the dialog box in the lParam parameter of the WM_INITDIALOG message.

Return value

If the WlxDialogBoxParam function succeeds, the return value is the value of the nResult parameter given in the call to the EndDialog function used to terminate the dialog box. The following table lists some possible success return values.

Return code Description
WLX_DLG_INPUT_TIMEOUT
Input timed out.
WLX_DLG_SAS
A secure attention sequence (SAS) event occurred.
WLX_DLG_SCREEN_SAVER_TIMEOUT
The screen saver timed out.
WLX_DLG_USER_LOGOFF
The user logged off.
 

If the function fails, the return value is –1.

Remarks

WlxDialogBoxParam duplicates the Windows DialogBoxParam function, and also allows Winlogon to terminate the dialog box. For more information, see DialogBoxParam.

Requirements

   
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header winwlx.h

See also

DialogBoxParam

DialogProc

EndDialog

MAKEINTRESOURCE

WlxInitialize