mirror of
https://github.com/reactos/wine.git
synced 2024-11-25 12:49:45 +00:00
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
|
|
* W32SCOMB
|
|
* DLL for Win32s
|
|
*
|
|
* Copyright (c) 1997 Andreas Mohr
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "windef.h"
|
|
#include "wine/winbase16.h"
|
|
#include "module.h"
|
|
#include "ldt.h"
|
|
#include "selectors.h"
|
|
#include "heap.h"
|
|
|
|
/***********************************************************************
|
|
* Get16DLLAddress (KERNEL32)
|
|
*
|
|
* This function is used by a Win32s DLL if it wants to call a Win16 function.
|
|
* A 16:16 segmented pointer to the function is returned.
|
|
* Written without any docu.
|
|
*/
|
|
SEGPTR WINAPI Get16DLLAddress(HMODULE handle, LPSTR func_name) {
|
|
HANDLE ThunkHeap = HeapCreate(HEAP_WINE_SEGPTR | HEAP_WINE_CODESEG, 0, 64);
|
|
LPBYTE x;
|
|
LPVOID tmpheap = HeapAlloc(ThunkHeap, 0, 32);
|
|
SEGPTR thunk = HEAP_GetSegptr(ThunkHeap, 0, tmpheap);
|
|
DWORD proc_16;
|
|
WORD cs;
|
|
|
|
if (!handle) handle=GetModuleHandle16("WIN32S16");
|
|
proc_16 = (DWORD)WIN32_GetProcAddress16(handle, func_name);
|
|
|
|
x=PTR_SEG_TO_LIN(thunk);
|
|
*x++=0xba; *(DWORD*)x=proc_16;x+=4; /* movl proc_16, $edx */
|
|
*x++=0xea; *(DWORD*)x=(DWORD)GetProcAddress(GetModuleHandleA("KERNEL32"),"QT_Thunk");x+=4; /* jmpl QT_Thunk */
|
|
GET_CS(cs); *(WORD*)x=(WORD)cs;
|
|
return thunk;
|
|
}
|