关于 DLL 问题！

[haidao17]

小弟 不知道 DLL 怎么调试
不知道 大侠们 是怎样调试DLL的，请不吝言辞介绍下你们的调试方法！
如果人多分不够，会加分的！

[HenryGo]

up

[Gucai]

不清楚，不过你可以先论坛里搜索搜索一下，说不定会有很多资料。

[IAMCDYY2003]

打开两个bcb来调试

[zzjzln]

编译连接后生成DLL，必须生成LIB库，用BCB中IMPLIB生成。

新建一工程，在工程文件中填加:USELIB("PATH\文件名.LIB");

并打开DLL原文件。

编译、运行工程，即可在在程序中使用DLL文件的函数或DLL源文件添加断点进行调试。

[pzoon]

静：
//---------------------------------------------------------------------------

#ifndef UMainH
#define UMainH
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
extern "C" __declspec(dllimport) int PlusNum(int x,int y);
extern "C" __declspec(dllimport) int MinusNum(int x,int y);
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published: // IDE-managed Components
TEdit *Edit1;
TEdit *Edit2;
TComboBox *ComboBox1;
TEdit *Edit3;
TButton *Button1;
void __fastcall Button1Click(TObject *Sender);
private: // User declarations
public: // User declarations
__fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif
。cpp
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
if (ComboBox1->Text == "1")
{
Edit3->Text = PlusNum(StrToInt(Edit1->Text),StrToInt(Edit2->Text));
}
if (ComboBox1->Text == "2")
{
Edit3->Text = MinusNum(StrToInt(Edit1->Text),StrToInt(Edit2->Text));
}

}

[pzoon]

动态：
//---------------------------------------------------------------------------

#ifndef UMain2H
#define UMain2H
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
typedef int (dmax)(int x,int y); //dmax代表DLL函数，后面是参数 1 fang fa
//int (__stdcall *max)(int x,int y); //2 fang fa
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published: // IDE-managed Components
TEdit *Edit1;
TEdit *Edit2;
TEdit *Edit3;
TButton *Button1;
void __fastcall Button1Click(TObject *Sender);
private: // User declarations
public: // User declarations
__fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif


。CPP
//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "UMain2.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
// 1 fang fa
dmax* max1; //dmax代表DLL的函数
HINSTANCE hd;
hd = LoadLibrary("dll2.dll");
max1 = (dmax*)GetProcAddress(hd,"_max");
Edit3->Text = (*max1)(StrToInt(Edit1->Text),StrToInt(Edit2->Text));
FreeLibrary(hd);
}
//---------------------------------------------------------------------------

[pzoon]

DLL
//---------------------------------------------------------------------------

#include <vcl.h>
#include <windows.h>
#pragma hdrstop
//---------------------------------------------------------------------------
// 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;
}
//---------------------------------------------------------------------------
extern "C" __declspec(dllexport) int PlusNum(int x,int y)
{
return x+y;
}
//---------------------------------------------------------------------------
extern "C" __declspec(dllexport) int MinusNum(int x,int y)
{
return x-y;
}

[踏岸寻柳]

需要这么麻烦吗！？
在BCB6里面直接打开你的主程序，再打开*.dll工程的文件，直接下断点就是了。

[ThinkX]

需要写一个宿主程序，在其中调用你的dll。
然后用Run->Parameters->Host Application设置宿主程序，启动后就可以了。

[penu]

需要制作一个测试dll的host程序，用以测试DLL
然后在DLL的项目选项中设定run参数，指定调用DLL的host程序文件
接下来你即可在DLL项目下进行运行调试。

[geniusdhc]

1.写如动态库程序并生成动态库
2.写动态库调用程序并编绎成可执行文件
3.在动态库工程中选Run->Parameters->Host Application 中输入2中的可执行文件
4.运行，这时你就跟调试普通程序一样调试动态库了.
----------------------
我就用这种方法.

[huoniao1976]

.h
private: // User declarations
HINSTANCE DLLInst,dll1;
void (__stdcall*LC)();
void (__stdcall*yy1)();
void (__stdcall*yy2)();
void (__stdcall*yy3)();
void (__stdcall*sw1)(AnsiString ff);
void (__stdcall*pb)();
void (__stdcall*hide1)();
void (__stdcall*show1)();
.cpp
void __fastcall TFormmain::FormCreate(TObject *Sender)
{ dll1=LoadLibrary("huoniao.dll");
if (dll1)
{ LC=(void (__stdcall*)()) GetProcAddress(dll1,"LC");
if (LC)
{}
else
ShowMessage("没有发现lc转换函数");
yy1=(void (__stdcall*)()) GetProcAddress(dll1,"yy1");
if (yy1)
{}
else
ShowMessage("没有发现yy1转换函数");
sw1=(void (__stdcall*)(AnsiString ff)) GetProcAddress(dll1,"sw1");
if (sw1)
{}
else
ShowMessage("没有发现sw1转换函数");
pb=(void (__stdcall*)()) GetProcAddress(dll1,"pb");
if (pb)
{}
else
ShowMessage("没有发现pb转换函数");
hide1=(void (__stdcall*)()) GetProcAddress(dll1,"hide1");
if (hide1)
{}
else
ShowMessage("没有发现hide1转换函数");
show1=(void (__stdcall*)()) GetProcAddress(dll1,"show1");
if (show1)
{}
else
ShowMessage("没有发现show1转换函数");
yy2=(void (__stdcall*)()) GetProcAddress(dll1,"yy2");
if (yy2)
{}
else
ShowMessage("没有发现yy2转换函数");
yy3=(void (__stdcall*)()) GetProcAddress(dll1,"yy3");
if (yy3)
{}
else
ShowMessage("没有发现yy3转换函数");
}
else
ShowMessage("没有发现动态连接库");
}

[hswu]

1.写如动态库程序并生成动态库
2.写动态库调用程序并编绎成可执行文件
3.在动态库工程中选Run->Parameters->Host Application 中输入2中的可执行文件
4.运行，这时你就跟调试普通程序一样调试动态库了.

[haidao17]

“这时你就跟调试普通程序一样调试动态库了.”
我能为 DLL 设置断点 来调试查看吗？？？

[ljianq]

可以啊。

[hswu]

当然可以，你调试别的程序怎么样现在就怎么样，你试试就知道了:)

[haidao17]

谢谢大家
晚上来揭贴！