PWLX_DIALOG_BOX_INDIRECT_PARAM callback function (winwlx.h)

Article
10/13/2021

[The WlxDialogBoxIndirectParam 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 in memory.

Note GINA DLLs are ignored in Windows Vista.

Syntax

PWLX_DIALOG_BOX_INDIRECT_PARAM PwlxDialogBoxIndirectParam;

int PwlxDialogBoxIndirectParam(
  [in] HANDLE hWlx,
  [in] HANDLE hInst,
  [in] LPCDLGTEMPLATE hDialogTemplate,
  [in] HWND hwndOwner,
  [in] DLGPROC dlgprc,
  [in] LPARAM dwInitParam
)
{...}

Parameters

[in] hWlx

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

[in] hInst

Specifies the instance of the module that creates the dialog box.

[in] hDialogTemplate

Specifies the address of a global memory object that contains a dialog box template used to create the dialog box. The template is in the form of a DLGTEMPLATE structure followed by one or more DLGITEMTEMPLATE structures. For a full description of these structures, see the Platform SDK.

[in] hwndOwner

Specifies the window that owns the dialog box.

[in] dlgprc

Points to the dialog box procedure. For more information about the dialog box procedure, see the description of the DialogProc callback function in the Platform SDK.

[in] dwInitParam

Specifies the value used to initialize the dialog box control. This value is passed to the dialog box in the lParam parameter of the WM_INITDIALOG message.

Return value

If the function succeeds, the function returns 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

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

Requirements

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