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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| user32.lib
| Header File
| winuser.h
| Unicode
| WinNT
| Platform Notes
| None
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DialogBoxIndirectParam
The DialogBoxIndirectParam function creates a modal dialog box from a dialog box template in memory.
Before displaying the dialog box, the function passes an application-defined value
to the dialog box procedure as the lParam parameter of the WM_INITDIALOG message. An application can use this value to initialize dialog box controls.
int DialogBoxIndirectParam(
HINSTANCE hInstance,
| // handle to application instance
| LPCDLGTEMPLATE hDialogTemplate,
| // identifies dialog box template
| HWND hWndParent,
| // handle to owner window
| DLGPROC lpDialogFunc,
| // pointer to dialog box procedure
| LPARAM dwInitParam
| // initialization value
| );
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Parameters
hInstance
Identifies the instance of the module that creates the dialog box.
hDialogTemplate
Pointer to a global memory object containing a template that DialogBoxIndirectParam uses to create the dialog box. A dialog box template consists of a header
that describes the dialog box, followed by one or more additional blocks of data
that describe each of the controls in the dialog box. The template can use
either the standard format or the extended format.
In a standard template for a dialog box, the header is a DLGTEMPLATE structure followed by additional variable-length arrays. The data for each
control consists of a DLGITEMTEMPLATE structure followed by additional variable-length arrays.
In an extended template for a dialog box, the header uses the DLGTEMPLATEEX format and the control definitions use the DLGITEMTEMPLATEEX format.
hWndParent
Identifies the window that owns the dialog box.
lpDialogFunc
Pointer 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 Values
If the function succeeds, the return value is the nResult parameter specified in the call to the EndDialog function that was used to terminate the dialog box.
If the function fails, the return value is  1.
Remarks
The DialogBoxIndirectParam function uses the CreateWindowEx function to create the dialog box. DialogBoxIndirectParam then sends a WM_INITDIALOG message to the dialog box procedure. If the template specifies the DS_SETFONT
style, the function also sends a WM_SETFONT message to the dialog box procedure. The function displays the dialog box
(regardless of whether the template specifies the WS_VISIBLE style), disables the
owner window, and starts its own message loop to retrieve and dispatch messages
for the dialog box.
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