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Compiles and executes the null-terminated statement you specify in stmt.
int _Execute(char FAR *stmt) char FAR *stmt; /* Statement to execute. */ |
Remarks
The stmt parameter can be any command or function that can be executed from the Command window. When execution of the statement is complete, control normally returns to the C statement immediately following the call to _Execute(В ). Exceptions include executing code that performs a Visual FoxPro CANCEL or QUIT command.
_Execute(В ) returns the Visual FoxPro internal error number for any error that occurs during execution of the statement, or 0 if no error occurs.
 Note: |
|---|
| Do not call _Execute() from an event handler. |
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 uses _Execute(В ) to execute the passed Visual FoxPro statement.
Visual FoxPro Code
| В |  Copy Code |
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SET LIBRARY TO EXECUTE
= EXEC("? 'Hello, world.'")
= EXEC("DISPLAY STATUS") | |
C Code
| В | Copy Code |
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#include <pro_ext.h>
FAR ExecuteEx(ParamBlk FAR *parm)
{
char FAR *cmd;
// Null terminate character string
if (!_SetHandSize(parm->p[0].val.ev_handle,
parm->p[0].val.ev_length+1))
{
_Error(182); // "Insufficient memory"
}
_HLock(parm->p[0].val.ev_handle);
cmd = (char FAR *) _HandToPtr(parm->p[0].val.ev_handle);
cmd[parm->p[0].val.ev_length] = '\0';
_Execute(cmd);
_HUnLock(parm->p[0].val.ev_handle);
}
FoxInfo myFoxInfo[] = {
{"EXEC", (FPFI) ExecuteEx, 1, "C"},
};
FoxTable _FoxTable = {
(FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
}; | |