_EdSetEnv( ) API Library Routine

Visual FoxPro 9.0 SP2

_EdSetEnv( ) API Library Routine


int _EdSetEnv(WHANDLE wh, EDENV theEdEnv) WHANDLE wh; / Handle of editing window. / EDENV theEdEnv; /* Editor settings. */

Remarks

For the structure of *EDENV, see _EdGetEnv( ) API Library Routine.

1 is returned if called in a Command or Editor session, otherwise 0 is returned.

For more information on how to create an API library and integrate it with Visual FoxPro, see Accessing the Visual FoxPro API.

Example

The following example opens for editing a file specified by a parameter. After indenting the first two lines of the file, it uses _EdSetEnv( ) to change the size of a tab stop to 6 characters and then to 9 characters.

Visual FoxPro Code

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SET LIBRARY TO EDSETENV = EDSETENV("x")

C Code

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#include <pro_ext.h> FAR Example(ParamBlk FAR parm) { #define pFILENAME ((char FAR ) _HandToPtr(parm->p[0].val.ev_handle)) WHANDLE wh; EDENV EdEnv; EDPOS edpos; if (!_SetHandSize(parm->p[0].val.ev_handle, parm->p[0].val.ev_length+1)) { _Error(182); // "Insufficient memory" } pFILENAME[parm->p[0].val.ev_length] = '\0'; _HLock(parm->p[0].val.ev_handle); wh = _EdOpenFile(pFILENAME, FO_READWRITE); _HUnLock(parm->p[0].val.ev_handle); _EdGetEnv(wh, &EdEnv); _EdSelect(wh, _EdGetLinePos(wh, 1), _EdGetLinePos(wh, 3)); _EdIndent(wh, 1); _Execute("WAIT WINDOW 'Press any key\ to change tabs to 6 characters.'"); EdEnv.tabWidth = 6; _EdSetEnv(wh, &EdEnv); _Execute("WAIT WINDOW 'Press any key \ to change tabs to 9 characters.'"); EdEnv.tabWidth = 9; _EdSetEnv(wh, &EdEnv); } FoxInfo myFoxInfo[] = { {"EDSETENV", (FPFI) Example, 1, "C"}, }; FoxTable _FoxTable = { (FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo };

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#include <pro_ext.h>
FAR Example(ParamBlk FAR *parm)
{
#define pFILENAME ((char FAR *) _HandToPtr(parm->p[0].val.ev_handle))
   WHANDLE wh;
   EDENV EdEnv;
   EDPOS edpos;
   if (!_SetHandSize(parm->p[0].val.ev_handle,
      parm->p[0].val.ev_length+1)) 
{
      _Error(182); // "Insufficient memory"
   }
   pFILENAME[parm->p[0].val.ev_length] = '\0';
   _HLock(parm->p[0].val.ev_handle);
   wh = _EdOpenFile(pFILENAME, FO_READWRITE);
   _HUnLock(parm->p[0].val.ev_handle);
   _EdGetEnv(wh, &EdEnv);
   _EdSelect(wh, _EdGetLinePos(wh, 1), _EdGetLinePos(wh, 3));
   _EdIndent(wh, 1);
   _Execute("WAIT WINDOW 'Press any key\
      to change tabs to 6 characters.'");
   EdEnv.tabWidth = 6;
   _EdSetEnv(wh, &EdEnv);
   _Execute("WAIT WINDOW 'Press any key \
      to change tabs to 9 characters.'");
   EdEnv.tabWidth = 9;
   _EdSetEnv(wh, &EdEnv);
}
FoxInfo myFoxInfo[] = {
   {"EDSETENV", (FPFI) Example, 1, "C"},
};
FoxTable _FoxTable = {
   (FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
};

_EdSetEnv( ) API Library Routine

Remarks

Example

Visual FoxPro Code

C Code

See Also

Reference

Other Resources