library DOCReport;{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }uses
SysUtils,
Classes,
ADODB,
DB,
ARWordReport;
var
queryDOC:TADOQuery;
reportDOC: TARWordReport;{$R *.res}function CreateDOCReport(strConnect :pchar;strTemplateFilePath: pchar;strTargetFilePath: pchar): pchar; stdcall;
begin
queryDOC := TADOQuery.Create(NIl);
reportDOC:= TARWordReport.Create(NIL);
queryDOC.ConnectionString := strConnect;
reportDOC.OnNeedSQL := reportDOCNeedSQL;
reportDOC.OnTag := reportDOCTag;
//模板文件
reportDOC.Filename := strTemplateFilePath;
//It is enough to use only Preview method
//in most cases when you work with TARWordReport.
reportDOC.Preview; // Closing TQuery which used in OnNeedSQL event
queryDOC.Close;
queryDOC.SQL.Clear;
Result:='';
end;
procedure reportDOCNeedSQL(Sender: TObject; SQLstring: String;
var ResultDataset: TDataSet);
begin
// Initialy ResultDataset=nil
// You need to point it to your dataset
try
//Check SQLstring here if needed
//(like a ARWordReportPerfom.CheckQuery function)
queryDOC.Close;
queryDOC.SQL.Clear;
queryDOC.SQL.Add(SQLstring);
queryDOC.Open;
ResultDataset:= queryDOC;
except
ResultDataset:= nil;
end;
end;
procedure reportDOCTag(Sender: TObject; var TagValue: String);
begin
// Using OnTag Event
TagValue:= AnsiUpperCase(TagValue);
if TagValue='NOWDATE' then TagValue:= DateToStr(now)
else if TagValue='NOWTIME' then TagValue:= TimeToStr(now)
else TagValue:='';
end;
exports
CreateDOCReport;
begin
end.我写的一个dll,如何给这两个事件动态关联事件呀?
這不是關聯了事件了嗎？？但這個事件的觸發是由本身類來維護的，還要是要由你自己寫代碼來維護
Undeclared identifier:'reportDOCNeedSQL'
Undeclared identifier:'reportDOCTag'