GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 5.2(Apollo) |
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GetAnchor(3) |
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Tk_GetAnchor, Tk_NameOfAnchor − translate between strings and anchor positions
#include <tk.h>
int
Tk_GetAnchor(interp, string,
anchorPtr)
char *
Tk_NameOfAnchor(anchor)
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Tcl_Interp *interp (in) |
Interpreter to use for error reporting. | ||
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char *string (in) |
String containing name of anchor point: one of ’’n’’, ’’ne’’, ’’e’’, ’’se’’, ’’s’’, ’’sw’’, ’’w’’, ’’nw’’, or ’’center’’. | ||
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int *anchorPtr (out) |
Pointer to location in which to store anchor position corresponding to string. | ||
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Tk_Anchor anchor (in) |
Anchor position, e.g. TCL_ANCHOR_CENTER. |
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Tk_GetAnchor places in *anchorPtr an anchor position (enumerated type Tk_Anchor) corresponding to string, which will be one of TK_ANCHOR_N, TK_ANCHOR_NE, TK_ANCHOR_E, TK_ANCHOR_SE, TK_ANCHOR_S, TK_ANCHOR_SW, TK_ANCHOR_W, TK_ANCHOR_NW, or TK_ANCHOR_CENTER. Anchor positions are typically used for indicating a point on an object that will be used to position that object, e.g. TK_ANCHOR_N means position the top center point of the object at a particular place.
Under normal circumstances the return value is TCL_OK and interp is unused. If string doesn’t contain a valid anchor position or an abbreviation of one of these names, then an error message is stored in interp->result, TCL_ERROR is returned, and *anchorPtr is unmodified.
Tk_NameOfAnchor is the logical inverse of Tk_GetAnchor. Given an anchor position such as TK_ANCHOR_N it returns a statically-allocated string corresponding to anchor. If anchor isn’t a legal anchor value, then ’’unknown anchor position’’ is returned.
anchor position
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GetAnchor(3) | |