ImageGear Professional for Unix
IG_dspl_page_print

This function draws an image onto the printer device context within the specified rectangle.

Declaration:

 
Copy Code
AT_ERRCOUNT   ACCUAPI  IG_dspl_page_print(
        [IN] HIGEAR hIGear,
        [IN] DWORD dwGrpID,
        [IN] HDC hDC,
        [IN] const LPAT_DRECTANGLE lpLayout,
        [IN] BOOL bDirectToDriver
);

Arguments:

Name Type Description
hIGear HIGEAR ImageGear handle of image.
dwGrpID DWORD Identifier of group from which to get printing options.
hDC HDC Handle of printer device context on which to draw the image.
lpLayout const LPAT_DRECTANGLE

Rectangle which specifies how the image is located on the page. This rectangle is calculated in page-relative units, and as actual page resolutions are obtained it translates the rectangle into real coordinates and assigns ClipRect according to the following rules:

ClipRect.x = lpLayout->x*nPageWidth ClipRect.y = lpLayout->y*nPageHeight ClipRect.width = lpLayout->width*nPageWidth ClipRect.height = lpLayout->height*nPageHeight

bDirectToDriver BOOL If TRUE then ImageGear does not perform image scaling but uses the operating system's and driver's capabilities for this. If FALSE then ImageGear performs the scaling.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear Professional.

Example:

 
Copy Code
HIGEAR           hIGear;        /* HIGEAR handle of image  */ 
DWORD           nGrpID;        /* display group identifier   */
BOOL            bDirect;       /* direct to driver flag  */
AT_DRECTANGLE
                Layout;
PRINTDLG                 pd;          /* print dialog structure  */
 ...
case ID_FILE_PRINT:
         ... 
        if( PrintDlg(&pd) )
        {
 ...
/* print image in the middle of the page and at 0.5 of width and height of the page */
Layout.x = 0.25;                        Layout.y = 0.25;
Layout.width = 0.5; Layout.height = 0.5;
IG_dspl_page_print( hIGear, nGrpID, pd.hDC, &Layout, bDirect );
 ...
        }
         ...
        break;
 ...

Remarks:

Printing resolution depends on the current printer setting. The bDirectToDriver parameter allows you to perform image scaling inside of ImageGear or leave this task to the printer driver and operating system. Usually, direct to driver printing (bDirectToDriver=TRUE) results in smaller output size and it works faster, but not using it produces better quality and allows you to use ImageGear capabilities such as anti-aliasing during printing.

Special predefined option group IG_GRP_DEFAULT_PRINT can be used to print an image with the most common parameters. 

 

 


©2014. Accusoft Corporation. All Rights Reserved.

Send Feedback