PRINTDLGA structure (commdlg.h)

Contains information that the PrintDlg function uses to initialize the Print Dialog Box. After the user closes the dialog box, the system uses this structure to return information about the user's selections.

Syntax

typedef struct tagPDA {
  DWORD           lStructSize;
  HWND            hwndOwner;
  HGLOBAL         hDevMode;
  HGLOBAL         hDevNames;
  HDC             hDC;
  DWORD           Flags;
  WORD            nFromPage;
  WORD            nToPage;
  WORD            nMinPage;
  WORD            nMaxPage;
  WORD            nCopies;
  HINSTANCE       hInstance;
  LPARAM          lCustData;
  LPPRINTHOOKPROC lpfnPrintHook;
  LPSETUPHOOKPROC lpfnSetupHook;
  LPCSTR          lpPrintTemplateName;
  LPCSTR          lpSetupTemplateName;
  HGLOBAL         hPrintTemplate;
  HGLOBAL         hSetupTemplate;
} PRINTDLGA, *LPPRINTDLGA;

Members

lStructSize

Type: DWORD

The structure size, in bytes.

hwndOwner

Type: HWND

A handle to the window that owns the dialog box. This member can be any valid window handle, or it can be NULL if the dialog box has no owner.

hDevMode

Type: HGLOBAL

A handle to a movable global memory object that contains a DEVMODE structure. If hDevMode is not NULL on input, you must allocate a movable block of memory for the DEVMODE structure and initialize its members. The PrintDlg function uses the input data to initialize the controls in the dialog box. When PrintDlg returns, the DEVMODE members indicate the user's input.

If hDevMode is NULL on input, PrintDlg allocates memory for the DEVMODE structure, initializes its members to indicate the user's input, and returns a handle that identifies it.

If the device driver for the specified printer does not support extended device modes, hDevMode is NULL when PrintDlg returns.

If the device name (specified by the dmDeviceName member of the DEVMODE structure) does not appear in the [devices] section of WIN.INI, PrintDlg returns an error.

For more information about the hDevMode and hDevNames members, see the Remarks section at the end of this topic.

hDevNames

Type: HGLOBAL

A handle to a movable global memory object that contains a DEVNAMES structure. If hDevNames is not NULL on input, you must allocate a movable block of memory for the DEVNAMES structure and initialize its members. The PrintDlg function uses the input data to initialize the controls in the dialog box. When PrintDlg returns, the DEVNAMES members contain information for the printer chosen by the user. You can use this information to create a device context or an information context.

The hDevNames member can be NULL, in which case, PrintDlg allocates memory for the DEVNAMES structure, initializes its members to indicate the user's input, and returns a handle that identifies it.

For more information about the hDevMode and hDevNames members, see the Remarks section at the end of this topic.

hDC

Type: HDC

A handle to a device context or an information context, depending on whether the Flags member specifies the PD_RETURNDC or PC_RETURNIC flag. If neither flag is specified, the value of this member is undefined. If both flags are specified, PD_RETURNDC has priority.

Flags

Type: DWORD

Initializes the Print dialog box. When the dialog box returns, it sets these flags to indicate the user's input. This member can be one or more of the following values.

To ensure that PrintDlg or PrintDlgEx returns the correct values in the dmCopies and dmCollate members of the DEVMODE structure, set PD_RETURNDC = TRUE and PD_USEDEVMODECOPIESANDCOLLATE = TRUE. In so doing, the nCopies member of the PRINTDLG structure is always 1 and PD_COLLATE is always FALSE.

To ensure that PrintDlg or PrintDlgEx returns the correct values in nCopies and PD_COLLATE, set PD_RETURNDC = TRUE and PD_USEDEVMODECOPIESANDCOLLATE = FALSE. In so doing, dmCopies is always 1 and dmCollate is always FALSE.

On Windows Vista and Windows 7, when you call PrintDlg or PrintDlgEx with PD_RETURNDC set to TRUE and PD_USEDEVMODECOPIESANDCOLLATE set to FALSE, the PrintDlg or PrintDlgEx function sets the number of copies in the nCopies member of the PRINTDLG structure, and it sets the number of copies in the structure represented by the hDC member of the PRINTDLG structure.

When making calls to GDI, you must ignore the value of nCopies, consider the value as 1, and use the returned hDC to avoid printing duplicate copies.

nFromPage

Type: WORD

The initial value for the starting page edit control.

When PrintDlg returns, nFromPage is the starting page specified by the user. If the Pages radio button is selected when the user clicks the Okay button, PrintDlg sets the PD_PAGENUMS flag and does not return until the user enters a starting page value that is within the minimum to maximum page range.

If the input value for either nFromPage or nToPage is outside the minimum/maximum range, PrintDlg returns an error only if the PD_PAGENUMS flag is specified; otherwise, it displays the dialog box but changes the out-of-range value to the minimum or maximum value.

nToPage

Type: WORD

The initial value for the ending page edit control. When PrintDlg returns, nToPage is the ending page specified by the user. If the Pages radio button is selected when the use clicks the Okay button, PrintDlg sets the PD_PAGENUMS flag and does not return until the user enters an ending page value that is within the minimum to maximum page range.

nMinPage

Type: WORD

The minimum value for the page range specified in the From and To page edit controls. If nMinPage equals nMaxPage, the Pages radio button and the starting and ending page edit controls are disabled.

nMaxPage

Type: WORD

The maximum value for the page range specified in the From and To page edit controls.

nCopies

Type: WORD

The initial number of copies for the Copies edit control if hDevMode is NULL; otherwise, the dmCopies member of the DEVMODE structure contains the initial value. When PrintDlg returns, nCopies contains the actual number of copies to print. This value depends on whether the application or the printer driver is responsible for printing multiple copies. If the PD_USEDEVMODECOPIESANDCOLLATE flag is set in the Flags member, nCopies is always 1 on return, and the printer driver is responsible for printing multiple copies. If the flag is not set, the application is responsible for printing the number of copies specified by nCopies. For more information, see the description of the PD_USEDEVMODECOPIESANDCOLLATE flag.

hInstance

Type: HINSTANCE

If the PD_ENABLEPRINTTEMPLATE or PD_ENABLESETUPTEMPLATE flag is set in the Flags member, hInstance is a handle to the application or module instance that contains the dialog box template named by the lpPrintTemplateName or lpSetupTemplateName member.

lCustData

Type: LPARAM

Application-defined data that the system passes to the hook procedure identified by the lpfnPrintHook or lpfnSetupHook member. When the system sends the WM_INITDIALOG message to the hook procedure, the message's lParam parameter is a pointer to the PRINTDLG structure specified when the dialog was created. The hook procedure can use this pointer to get the lCustData value.

lpfnPrintHook

Type: LPPRINTHOOKPROC

A pointer to a PrintHookProc hook procedure that can process messages intended for the Print dialog box. This member is ignored unless the PD_ENABLEPRINTHOOK flag is set in the Flags member.

lpfnSetupHook

Type: LPSETUPHOOKPROC

A pointer to a SetupHookProc hook procedure that can process messages intended for the Print Setup dialog box. This member is ignored unless the PD_ENABLESETUPHOOK flag is set in the Flags member.

lpPrintTemplateName

Type: LPCTSTR

The name of the dialog box template resource in the module identified by the hInstance member. This template replaces the default Print dialog box template. This member is ignored unless the PD_ENABLEPRINTTEMPLATE flag is set in the Flags member.

lpSetupTemplateName

Type: LPCTSTR

The name of the dialog box template resource in the module identified by the hInstance member. This template replaces the default Print Setup dialog box template. This member is ignored unless the PD_ENABLESETUPTEMPLATE flag is set in the Flags member.

hPrintTemplate

Type: HGLOBAL

If the PD_ENABLEPRINTTEMPLATEHANDLE flag is set in the Flags member, hPrintTemplate is a handle to a memory object containing a dialog box template. This template replaces the default Print dialog box template.

hSetupTemplate

Type: HGLOBAL

If the PD_ENABLESETUPTEMPLATEHANDLE flag is set in the Flags member, hSetupTemplate is a handle to a memory object containing a dialog box template. This template replaces the default Print Setup dialog box template.

Remarks

If both hDevMode and hDevNames are NULL, PrintDlg initializes the dialog box using the current default printer. To initialize the dialog box for a different printer, use the wDeviceOffset member of the DEVNAMES structure to specify the name of the printer.

Note that the dmDeviceName member of the DEVMODE structure also specifies a printer name. However, dmDeviceName is limited to 32 characters, and the wDeviceOffset name is not. If the wDeviceOffset and dmDeviceName names are not the same, PrintDlg initializes the dialog box using the printer specified by wDeviceOffset.

If the PD_RETURNDEFAULT flag is set and both hDevMode and hDevNames are NULL, PrintDlg uses the hDevNames and hDevMode members to return information about the current default printer without displaying the dialog box.

Requirements

See also

Common Dialog Box Library

Conceptual

DEVMODE

DEVNAMES

PrintDlg

Reference

WM_INITDIALOG