|
|
Chemical Structures 2.1 (Default branch)
02-05-2008
The Chemical Structures project aims to provide a complete set of 3D molecular structures in CML format. As CML format permits structural data and many properties to be included, each file also contains additional information, like molecular weight, boiling point, melting point, or InChI code. Data can be explored with a CML-aware software, like Jmol, or by using a Web browser. License: BSD License (revised) Changes:|
|
XGetTextProperty() XGetTextProperty()
Name
XGetTextProperty - read one of a window's text properties.
Synopsis
Status XGetTextProperty(display, w, text_prop_return, property)
Display *display;
Window w;
XTextProperty *text_prop_return;
Atom property;
Arguments
display Specifies a connection to an X server; returned from XOpenDisplay().
w Specifies the window.
text_prop_return
Returns the XTextProperty structure.
property Specifies the property name.
Returns
Zero on failure, non-zero on success.
Availability
Release 4 and later.
Description
XGetTextProperty() reads the specified property from the window and stores the data in the returned XTextProperty structure. It stores the
data in the value field, the type of the data in the encoding field, the format of the data in the format field, and the number of items of
data in the nitems field. An extra byte containing null (which is not included in the nitems number) is stored at the end of the value
field of text_prop_return. The particular interpretation of the property's encoding and data as ``text'' is left to the calling applica-
tion. If the specified property does not exist on the window, XGetTextProperty() sets the value field to NULL, the encoding field to None,
the format field to zero, and the nitems field to zero.
If it was able to set these files in the XTextProperty structure, XGetTextProperty() returns a non-zero status; otherwise, it returns a
zero status.
For more information, see Volume One, Chapter 12, Interclient Communication.
Structures
typedef struct {
unsigned char *value; /* same as Property routines */
Atom encoding; /* prop type */
int format; /* prop data format: 8, 16, or 32 */
unsigned long nitems; /* number of data items in value */
} XTextProperty;
Errors
BadAtom
BadWindow
See Also
XFreeStringList(), XSetTextProperty(), XStringListToTextProperty(), XTextPropertytoStringList.
Xlib - Window Manager Hints XGetTextProperty()