用嵌入汇编调用MessageBox，结果一运行就崩溃

[hongzhaj]

#include "stdafx.h"
char c[]="caption";
char t[]="text";

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
	__asm{
		push MB_OK
		lea si,c
		push si
		lea si,t
		push si
		push NULL
		call dword ptr MessageBoxA
	}
	return 0;
}

参数入栈的时候我是从右往左啊。
问题出在哪里呢?

谢谢！

[hongzhaj]

[Quote=引用 1 楼 o_yale_o 的回复:]
DWORD *pdwParamCall = new DWORD[ iParamCountCall ];
memset( pdwParamCall, 0x00, sizeof( DWORD ) * iParamCountCall );
pdwParamCall[ 0 ] = (DWORD)( _T( "" ) ); // Dll File Path
pdwParamCall[ 1 ……
[/Quote]

这个太复杂了吧，能告诉我，我的程序错在哪里么?
谢谢！

[JeanLove]

http://baike.baidu.com/view/69207.htm
http://www.douban.com/note/31135531/

[真相重于对错]

__asm{
mov esi,esp
push MB_OK

push offset c
push offset t
push NULL
call dword ptr MessageBoxA
}

[o_yale_o]

[Quote=引用 2 楼 hongzhaj 的回复:]

引用 1 楼 o_yale_o 的回复:
DWORD *pdwParamCall = new DWORD[ iParamCountCall ];
memset( pdwParamCall, 0x00, sizeof( DWORD ) * iParamCountCall );
pdwParamCall[ 0 ] = (DWORD)( _T( "" ) ); // Dll File Path
……
[/Quote]

我只能给你通用dll调用方式。

[o_yale_o]

人应该在对的方向上做对
而不是也不能把错的事情做对
那样是自己跟自己过不去

[汪宁宇]

[Quote=引用楼主 hongzhaj 的回复:]
C/C++ code

#include "stdafx.h"
char c[]="caption";
char t[]="text";

int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLin……
[/Quote]

LS已经给出代码了，我只想补充一下~~

全局变量用OFFSET，局部变量用LEA！

#include <afx.h>

char c[]="caption";
char t[]="text";

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
    __asm{
        push MB_OK
        push OFFSET c
        push OFFSET t
        push NULL
        call dword ptr [MessageBoxA]
    }
    return 0;
}

#include <windows.h> 

char szAppName[] = "Test"; 

int WINAPI WinMain( HINSTANCE hInstance, 
					HINSTANCE hPrevInstance, 
					LPSTR lpCmdLine, 
					int nShowCmd ) 
{
	char szHello[] = "Hello, world!"; 
	__asm 
	{ 
		push    MB_OK 
		push    OFFSET szAppName    // 全局变量用OFFSET 
		lea     EAX, szHello        // 局部变量用LEA 
		push    EAX 
		push    0 
		call    DWORD PTR [MessageBoxA]     
	}
	return 0;
}

[o_yale_o]

DWORD *pdwParamCall = new DWORD[ iParamCountCall ];
memset( pdwParamCall, 0x00, sizeof( DWORD ) * iParamCountCall );
pdwParamCall[ 0 ] = (DWORD)( _T( "" ) ); // Dll File Path
pdwParamCall[ 1 ] = (DWORD)( ( LPCTSTR )funcname ); // FunctionName
pdwParamCall[ 2 ] = (DWORD)(-1); // Return value

RunFunction( pdwParamCall, iParamCountCall );

=================================================================
BOOL CWin32Dll::RunFunction(DWORD* dwFuncs,UINT nSize)
{
if( !dwFuncs || !nSize)
{
return FALSE;
}

if ( !m_hMod )
{
return FALSE;
}

DWORD dwFunction =
(DWORD)::GetProcAddress( m_hMod /*GetModuleHandleA( (const char*)dwFuncs[0] )*/,
(const char*)dwFuncs[1] );
if( !dwFunction )
{
return FALSE;
}

DWORD dwTemp(0);
_asm
{
pushad;
mov ebx, nSize;
mov edx, dword ptr dwFuncs;

cmp ebx,3
jb LEXIT;
L1: dec ebx
cmp ebx,2
je LCALL
mov eax, [edx + 4*ebx]
push eax
loop L1;
LCALL:
mov dword ptr[dwTemp],edx
call dword ptr [dwFunction]
mov edx, dword ptr[dwTemp]
mov dword ptr[edx + 2*4],eax
LEXIT:
popad;
}
return TRUE;
}