_MenuInteract( ) API Library Routine
Sets the itemid and the menuid to indicate which menu item was chosen, if any.
int _MenuInteract(MENUID FAR *menuid, ITEMID FAR *itemid)
MENUID FAR *menuid; /* Pointer to menu identifier. */
ITEMID FAR *itemid; /* Pointer to menu item identifier. */
Remarks
If the user chooses any menu item, _MenuInteract( ) returns 1. If no item is chosen (for example, if the user presses ESC) _MenuInteract( ) returns 0.
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 builds a menu with three items, and then requires the user to interact with the menu by calling _MenuInteract( ).
Visual FoxPro Code
SET LIBRARY TO MENUINTE
C Code
#include <pro_ext.h>
void putLong(long n)
{
Value val;
val.ev_type = 'I';
val.ev_long = n;
val.ev_width = 10;
_PutValue(&val);
}
FAR GetNewItemId(ParamBlk FAR *parm)
{
MENUID menuId;
ITEMID itemId;
Point loc;
menuId = _GetNewMenuId();
_NewMenu(MPOPUP, menuId);
itemId = _GetNewItemId(menuId);
_NewItem(menuId, itemId, -2, "\\<1st item");
itemId = _GetNewItemId(menuId);
_NewItem(menuId, itemId, -2, "\\<2nd item");
itemId = _GetNewItemId(menuId);
_NewItem(menuId, itemId, -2, "\\<3rd item");
loc.v = 10; loc.h = 20;
_SetMenuPoint(menuId, loc);
_MenuInteract(&menuId, &itemId);
_PutStr("\nmenuId ="); putLong(menuId);
_PutStr("\nitemId ="); putLong(itemId);
_DisposeMenu(menuId);
}
FoxInfo myFoxInfo[] = {
{"ONLOAD", (FPFI) GetNewItemId, CALLONLOAD, ""},
};
FoxTable _FoxTable = {
(FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
};
See Also
Concepts
Reference
_MenuId( ) API Library Routine
_OnSelection( ) API Library Routine
_GetNewMenuId( ) API Library Routine