怎样解决以C开发DLL函式库的语法错误

[zhangjin19860305126]

各位大侠，你们好！
我打开C++ Builder 5,在File中选择New,再点击DLL Wizard,我选择Source Type为C，点击OK,以下为出现的东西：
//---------------------------------------------------------------------------

#include <windows.h>
//---------------------------------------------------------------------------
// Important note about DLL memory management when your DLL uses the
// static version of the RunTime Library:
//
// If your DLL exports any functions that pass String objects (or structs/
// classes containing nested Strings) as parameter or function results,
// you will need to add the library MEMMGR.LIB to both the DLL project and
// any other projects that use the DLL. You will also need to use MEMMGR.LIB
// if any other projects which use the DLL will be performing new or delete
// operations on any non-TObject-derived classes which are exported from the
// DLL. Adding MEMMGR.LIB to your project will change the DLL and its calling
// EXE's to use the BORLNDMM.DLL as their memory manager. In these cases,
// the file BORLNDMM.DLL should be deployed along with your DLL.
//
// To avoid using BORLNDMM.DLL, pass string information using "char *" or
// ShortString parameters.
//
// If your DLL uses the dynamic version of the RTL, you do not need to
// explicitly add MEMMGR.LIB as this will be done implicitly for you
//---------------------------------------------------------------------------

#pragma argsused
int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void* lpReserved)
{
return 1;
}
//---------------------------------------------------------------------------
然后我接在后面输入了
Long _declspec (dllexport) _stdcall BCBType_Count(int s,int e)
{
long sum = 0;
for(s;s<=e;s++)
sum+=s;
return sum;
}
保存后，点击了Project中的Build,出现了语法错误：光标指在declspec后面，这是为什么？

[zhangjin19860305126]

各位大侠，问题1解决后，生成了.lib与.dll文件，我把它们拷贝到另外一目录下，并在该目录的工程中执行了Add to Project，将.lib加入进来了。该工程中的程序为：
//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
int s,e;
s=Edit1->Text.ToInt();
e=Edit2->Text.ToInt();
Edit3->Text=BCBType_Count(s,e);
}
//---------------------------------------------------------------------------
但是Builder后，说BCBType_Count无定义。这主要是没有dll.h(long_declspec(dllexport)_stdcall BCBType_Count(int s,int e);)，我该怎么加。我试了好几种方法，都不行。请指点，谢谢！

[缘中人]

dll的函数动态调用和静态调用
http://hi.baidu.com/shadowcn/blog/item/f9c30d09b26175ab2eddd4ed.html

[zhangjin19860305126]

谢谢！
我刚刚在TForm1 *Form1;后面写上了long_declspec(dllexport)_stdcall BCBType_Count(int s,int e);就调试出来了。
但是我还是想用头文件的方式。请大侠们指点。谢谢！

[缘中人]

你是要静态调用
http://topic.csdn.net/u/20071031/20/89b43821-d499-41e2-8797-d2fee4eb5ae2.html

[fxworld]

Long改为 long

[zhangjin19860305126]

谢谢!

[bigfog]

__declspec(dllexport)
改成
__declspec(dllimport)