XAllPlanes() XAllPlanes()
Name
XAllPlanes, AllPlanes - return a value with all bits set to 1 suitable for plane argument.
Synopsis
unsigned long XAllPlanes()
Arguments
None.
Returns
A plane mask that includes all planes.
Description
XAllPlanes() returns a value with all bits set to 1 suitable for use in a plane mask in a GC, color allocation procedure, or in image han-
dling.
The C language macro AllPlanes() is equivalent and slightly more efficient.
See Also
XAllocColorCells(), XChangeGC(), XCopyGC(), XCreateGC(), XGetGCValues(), XGetImage(), XGetSubImage(), XSetPlaneMask(), XSetState().
Xlib - Macro Equivalents XAllPlanes()
Check Out this Related Man Page
XAllocColorCells() XAllocColorCells()
Name
XAllocColorCells - allocate read/write (nonshared) colorcells.
Synopsis
Status XAllocColorCells(display, colormap, contig, plane_masks_return, nplanes, pixels_return, npixels_return)
Display *display;
Colormap colormap;
Bool contig;
unsigned long plane_masks_return[nplanes];
unsigned int nplanes;
unsigned long pixels_return[npixels_return];
unsigned int npixels_return;
Arguments
display Specifies a connection to an X server; returned from XOpenDisplay().
colormap Specifies the ID of the colormap in which the colorcell is to be allocated.
contig Specifies a boolean value. Pass True if the planes must be contiguous or False if the planes need not be contiguous.
plane_mask
Returns an array of plane masks.
nplanes Specifies the number of plane masks returned in the plane masks array. Must be nonnegative.
pixels_return
Returns an array of pixel values.
npixels_return
Specifies the number of pixel values returned in the pixels_return array. Must be positive.
Returns
Zero on failure, non-zero on success.
Description
XAllocColorCells() allocates read/write colorcells in a read/write colormap. If npixels_return and nplanes are requested, then npix-
els_return base values and nplanes plane masks are returned. No mask will have any bits in common with any other mask, or with any of the
pixels. By ORing together each of the pixels_return with any combination of the plane_masks_return, npixels_return*2(nplanes) distinct
pixel values can be produced. For GrayScale or PseudoColor, each mask will have exactly one bit, and for DirectColor each will have
exactly three bits. If contig is True, then if all plane masks are ORed together, a single contiguous set of bits will be formed for Gray-
Scale or PseudoColor and three contiguous sets of bits (one within each pixel subfield) for DirectColor. The RGB values of the allocated
entries are undefined until set with XStoreColor, XStoreColors(), or XStoreNamedColor().
Status is zero on failure, and non-zero on success.
For more information, see Volume One, Chapter 7, Color.
Errors
BadColor
BadValue nplanes is negative.
npixels_return is not positive.
See Also
XBlackPixel(), XWhitePixel(), XAllocColor(), XAllocColorPlanes(), XAllocNamedColor(), XFreeColors(), XLookupColor(), XParseColor(), XQuery-
Color(), XQueryColors(), XStoreColor(), XStoreColors(), XStoreNamedColor().
Xlib - Color Cells XAllocColorCells()
Introduction
I have seen some misinformation regarding Unix file permissions. I will try to set the record straight. Take a look at this example of some output from ls:
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