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.
| Value | Meaning |
|---|---|
|
The default flag that indicates that the All radio button is initially selected. This flag is used as a placeholder to indicate that the PD_PAGENUMS and PD_SELECTION flags are not specified. |
|
If this flag is set, the Collate check box is selected.
If this flag is set when the PrintDlg function returns, the application must simulate collation of multiple copies. For more information, see the description of the PD_USEDEVMODECOPIESANDCOLLATE flag. See PD_NOPAGENUMS. |
|
Disables the Print to File check box. |
|
Enables the hook procedure specified in the lpfnPrintHook member. This enables the hook procedure for the Print dialog box. |
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Indicates that the hInstance and lpPrintTemplateName members specify a replacement for the default Print dialog box template. |
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Indicates that the hPrintTemplate member identifies a data block that contains a preloaded dialog box template. This template replaces the default template for the Print dialog box. The system ignores the lpPrintTemplateName member if this flag is specified. |
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Enables the hook procedure specified in the lpfnSetupHook member. This enables the hook procedure for the Print Setup dialog box. |
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Indicates that the hInstance and lpSetupTemplateName members specify a replacement for the default Print Setup dialog box template. |
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Indicates that the hSetupTemplate member identifies a data block that contains a preloaded dialog box template. This template replaces the default template for the Print Setup dialog box. The system ignores the lpSetupTemplateName member if this flag is specified. |
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Hides the Print to File check box. |
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Hides and disables the Network button. |
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Disables the Pages radio button and the associated edit controls. Also, it causes the Collate check box to appear in the dialog. |
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Disables the Selection radio button. |
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Prevents the warning message from being displayed when there is no default printer. |
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If this flag is set, the Pages radio button is selected. If this flag is set when the PrintDlg function returns, the nFromPage and nToPage members indicate the starting and ending pages specified by the user. |
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Causes the system to display the Print Setup dialog box rather than the Print dialog box. |
|
If this flag is set, the Print to File check box is selected. If this flag is set when the PrintDlg function returns, the offset indicated by the wOutputOffset member of the DEVNAMES structure contains the string "FILE:". When you call the StartDoc function to start the printing operation, specify this "FILE:" string in the lpszOutput member of the DOCINFO structure. Specifying this string causes the print subsystem to query the user for the name of the output file. |
|
Causes PrintDlg to return a device context matching the selections the user made in the dialog box. The device context is returned in hDC. |
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If this flag is set, the PrintDlg function does not display the dialog box. Instead, it sets the hDevNames and hDevMode members to handles to DEVMODE and DEVNAMES structures that are initialized for the system default printer. Both hDevNames and hDevMode must be NULL, or PrintDlg returns an error. |
|
Similar to the PD_RETURNDC flag, except this flag returns an information context rather than a device context. If neither PD_RETURNDC nor PD_RETURNIC is specified, hDC is undefined on output. |
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If this flag is set, the Selection radio button is selected. If neither PD_PAGENUMS nor PD_SELECTION is set, the All radio button is selected. |
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Causes the dialog box to display the Help button. The hwndOwner member must specify the window to receive the HELPMSGSTRING registered messages that the dialog box sends when the user clicks the Help button. |
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Same as PD_USEDEVMODECOPIESANDCOLLATE. |
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This flag indicates whether your application supports multiple copies and collation. Set this flag on input to indicate that your application does not support multiple copies and collation. In this case, the nCopies member of the PRINTDLG structure always returns 1, and PD_COLLATE is never set in the Flags member.
If this flag is not set, the application is responsible for printing and collating multiple copies. In this case, the nCopies member of the PRINTDLG structure indicates the number of copies the user wants to print, and the PD_COLLATE flag in the Flags member indicates whether the user wants collation. Regardless of whether this flag is set, an application can determine from nCopies and PD_COLLATE how many copies to render and whether to print them collated. If this flag is set and the printer driver does not support multiple copies, the Copies edit control is disabled. Similarly, if this flag is set and the printer driver does not support collation, the Collate check box is disabled. The dmCopies and dmCollate members of the DEVMODE structure contain the copies and collate information used by the printer driver. If this flag is set and the printer driver supports multiple copies, the dmCopies member indicates the number of copies requested by the user. If this flag is set and the printer driver supports collation, the dmCollate member of the DEVMODE structure indicates whether the user wants collation. If this flag is not set, the dmCopies member always returns 1, and the dmCollate member is always zero. Known issue on Windows 2000/XP/2003: If this flag is not set before calling PrintDlg, PrintDlg might swap nCopies and dmCopies values when it returns. The workaround for this issue is use dmCopies if its value is larger than 1, else, use nCopies, for you to get the actual number of copies to be printed when PrintDlg returns. |
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.
Note
The commdlg.h header defines PRINTDLG as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Header | commdlg.h (include Windows.h) |
See also
Conceptual
Reference