Category : C Source Code
Archive   : WTWG12B.ZIP
Filename : WBUTTOND.C

/* WBUTTOND.C
*
* contains wbutton_delete () -- remove a button from the list.
*
*/
#include "wsys.h"






void wbutton_delete (int uval, int redraw)
{
WBUTTON *Bptr, **chain;



chain = & (w0->winbutton ); /* address of chain */

for ( Bptr = w0->winbutton;
Bptr;
chain = &(Bptr->Bchain), Bptr = Bptr->Bchain )
{
if ( Bptr->Bval == uval )
{

if ( 0== redraw )
{
/* need to erase button
* so setup a 'blank' button.
* in the large model, *(NULL) is not necessarily 0
*/
Bptr-> Btext = " ";
}

if ( Bptr-> Bstyle & WBTN_BOX )
{
/* erase the box first,
* then shrink the size counters
* so that wbutton_draw will work
* in text area only.
*/
wbutton_frame ( Bptr, NO_BORDER, wgetattr() );

++(Bptr->Bx);
++(Bptr->By);
--(Bptr->Bxend);
--(Bptr->Byend);
}

wbutton_draw ( Bptr, wgetattr() );

/* unlink button from chain */
*chain = Bptr->Bchain;

free ( Bptr );


break; /* found button -- quit */

}


}


return; /* wbutton_delete () */
}