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Shell Programming and Scripting
Test command in UNIX
Post 302872307 by Akshay Hegde on Friday 8th of November 2013 05:49:35 AM
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LEARN ABOUT X11R4
xpsetimageresolution
XpSetImageResolution(3Xp) XPRINT FUNCTIONS XpSetImageResolution(3Xp) NAME
XpSetImageResolution - Sets the resolution for subsequent PutImage requests SYNOPSIS
cc [ flag... ] file... -lXp [ library... ] #include <X11/extensions/Print.h> Bool XpSetImageResolution ( display, print_context, image_res, prev_res_return ) Display * display ; XPContext print_context ; int image_res ; int * prev_res_return ; ARGUMENTS
- display Specifies a pointer to the Display structure. - print_context Specifies the print context on which to set the resolution. - image_res Specifies the image resolution in pixels per inch. - prev_res_return Returns the previous image resolution in pixels per inch. DESCRIPTION
XpSetImageResolution returns True if the printer server allowed the resolution to be set, otherwise False is returned. XpSetImageResolution sets the resolution for subsequent PutImage requests to the screen of the specified print context. If the return value is False, then the print server does not support image scaling for the particular resolution given the current configuration of the printer, and the application is responsible for any desired scaling. If the return value is True, then the contents of any subsequent PutImage request to a Pixmap or to a Window on the screen of the specified print context will automatically be scaled as part of the PutIm- age request. The scale factor is: default_printer_resolution / image_res Where default_printer_resolution is the current value of that page attribute. Only the image itself is scaled (meaning the effective width and height of the image change), the dst-x and dst-y parameters to PutImage are not altered. As a special case, a value of zero for image_res resets the resolution to automatically track the printer resolution; in this case (which is also the default setting for a newly created print context), subsequent images will not be scaled. If the return value is True and prev_res_return is a non-NULL pointer, then the previous image resolution that was set for the print con- text is stored in prev_res_return. XpSetImageResolution returns False immediately if image_res is negative or greater than 65535. DIAGNOSTICS
XpBadContext A valid print context-id has not been set prior to making this call. X Version 11 libXp 1.0.0 XpSetImageResolution(3Xp)