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fldblank.pas
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Pascal/Delphi Source File
|
1991-07-22
|
834b
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37 lines
program FldBlank;
uses PXEngine, WinCrt, WinTypes;
const TableName = 'Table';
var PxErr: Integer;
TblHandle: TableHandle;
RecHandle: RecordHandle;
FldHandle: FieldHandle;
Blank: Bool;
procedure PX(Code : integer);
begin
writeln(PXErrMsg(Code));
end;
begin
FldHandle := 1;
PX(PXWinInit('MyApp', pxShared));
PX(PXTblOpen(TableName, TblHandle, 0, False));
PX(PXRecBufOpen(TblHandle, RecHandle));
PX(PXRecGet(TblHandle, RecHandle));
(* See if the field is blank *)
PxErr := PXFldBlank(RecHandle, FldHandle, Blank);
if PxErr <> PxSuccess then
Writeln(PxErrMsg(PxErr))
else if Blank then
Writeln('Field is blank')
else Writeln('Field is not blank');
PX(PXRecBufClose(RecHandle));
PX(PXTblClose(TblHandle));
PX(PXExit);
end.