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Returns the total number of records in the table open in the specified work area.
long _DBRecCount(int workarea) int workarea; /* Work area. */ |
Remarks
If no table is open in the specified work area, _DBRecCount(В ) returns a negative integer whose absolute value is a Visual FoxPro error number.
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 calls _DBRecCount(В ) to count the number of records in the table open in the current work area.
Visual FoxPro Code
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|---|---|
SET LIBRARY TO DBRECCNT DO CreateTest ? DBRECCOUNT() && call API routine ? RECCOUNT() && call built-in Visual FoxPro Function PROCEDURE CreateTest CREATE TABLE test (ABC C(20)) APPEND BLANK REPLACE ABC WITH "This is record 1" APPEND BLANK REPLACE ABC WITH "This is record 2" APPEND BLANK REPLACE ABC WITH "This is record 3" APPEND BLANK REPLACE ABC WITH "This is record 4" GO TOP RETURN | |
C Code
| В | Copy Code |
|---|---|
#include <pro_ext.h>
FAR Example(ParamBlk FAR *parm)
{
_RetInt(_DBRecCount(-1), 10);
}
FoxInfo myFoxInfo[] = {
{"DBRECCOUNT", (FPFI) Example, 0, ""},
};
FoxTable _FoxTable = {
(FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
}; | |