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Annotation of 43BSD/contrib/X/XMenu/XMenuChgPane.c, revision 1.1

1.1     ! root        1: #include <X/mit-copyright.h>
        !             2: 
        !             3: /* $Header: XMenuChgPane.c,v 10.8 86/02/01 16:14:29 tony Rel $ */
        !             4: /* Copyright    Massachusetts Institute of Technology    1985  */
        !             5: 
        !             6: /*
        !             7:  * XMenu:      MIT Project Athena, X Window system menu package
        !             8:  *
        !             9:  *     XMenuChangePane - Change the label of a  menu pane.
        !            10:  *
        !            11:  *     Author:         Tony Della Fera, DEC
        !            12:  *                     December 19, 1985
        !            13:  *
        !            14:  */
        !            15: 
        !            16: #include "XMenuInternal.h"
        !            17: 
        !            18: int
        !            19: XMenuChangePane(menu, p_num, label)
        !            20:     register XMenu *menu;      /* Menu object to be modified. */
        !            21:     register int p_num;                /* Pane number to be modified. */
        !            22:     char *label;               /* Selection label. */
        !            23: {
        !            24:     register int i;            /* Loop counter. */
        !            25:     register XMPane *p_ptr;    /* XMPane pointer. */
        !            26: 
        !            27:     int label_length;          /* Label lenght in characters. */
        !            28:     int label_width;           /* Label width in pixels. */
        !            29: 
        !            30:     /*
        !            31:      * Check for NULL pointers!
        !            32:      */
        !            33:     if (label == NULL) {
        !            34:        _XMErrorCode = XME_ARG_BOUNDS;
        !            35:        return(XM_FAILURE);
        !            36:     }
        !            37: 
        !            38:     /*
        !            39:      * Find the right pane.
        !            40:      */
        !            41:     p_ptr = _XMGetPanePtr(menu, p_num);
        !            42:     if (p_ptr == NULL) return(XM_FAILURE);
        !            43: 
        !            44:     /*
        !            45:      * Determine label size.
        !            46:      */
        !            47:     label_width = XQueryWidth(label, menu->p_fnt_info->id);
        !            48:     label_length = strlen(label);
        !            49: 
        !            50:     /*
        !            51:      * Change the pane data.
        !            52:      */
        !            53:     p_ptr->label = label;
        !            54:     p_ptr->label_width = label_width;
        !            55:     p_ptr->label_length = label_length;
        !            56: 
        !            57:     /*
        !            58:      * Schedule a recompute.
        !            59:      */
        !            60:     menu->recompute = 1;
        !            61: 
        !            62:     /*
        !            63:      * Return the pane number just changed.
        !            64:      */
        !            65:     _XMErrorCode = XME_NO_ERROR;
        !            66:     return(p_num);
        !            67: }

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