Initial commit

.gitignore

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+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+*.ppx
+*.tag
+dll/output
+exe/output
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2015 Guilherme Maeda
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

dll/dll.ppj

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+# 
+# PROJECT FILE generated by "Pelles C for Windows, version 8.00".
+# WARNING! DO NOT EDIT THIS FILE.
+# 
+
+POC_PROJECT_VERSION = 7.00#
+POC_PROJECT_TYPE = 1#
+POC_PROJECT_OUTPUTDIR = output#
+POC_PROJECT_RESULTDIR = .#
+POC_PROJECT_ARGUMENTS = #
+POC_PROJECT_WORKPATH = .#
+POC_PROJECT_EXECUTOR = ..\exe\sapgui_multilogon.exe#
+POC_PROJECT_ZIPEXTRA = #
+CC = pocc.exe#
+AS = poasm.exe#
+RC = porc.exe#
+LINK = polink.exe#
+SIGN = posign.exe#
+CCFLAGS = -std:C11 -Tx86-coff -MT -Os -Ox -Ob1 -fp:precise -W1 -Gz -Ze#
+ASFLAGS = -AIA32 -Gz#
+RCFLAGS = #
+LINKFLAGS = -subsystem:windows -machine:x86 -release -dll kernel32.lib user32.lib gdi32.lib#
+SIGNFLAGS = -timeurl:http://timestamp.verisign.com/scripts/timstamp.dll -location:CU -store:MY -errkill#
+INCLUDE = $(PellesCDir)\Include\Win;$(PellesCDir)\Include#
+LIB = $(PellesCDir)\Lib\Win;$(PellesCDir)\Lib#
+
+# 
+# Build sapgui_multilogon.dll.
+# 
+sapgui_multilogon.dll: \
+	output\asmserv.obj \
+	output\disasm.obj \
+	output\dllmain.obj \
+	output\hook.obj \
+	output\resources.res \
+	output\sapgui_hooks.obj
+	$(LINK) $(LINKFLAGS) -out:"$@" $**
+
+# 
+# Build dllmain.obj.
+# 
+output\dllmain.obj: \
+	dllmain.c \
+	dllmain.h \
+	resources.h \
+	sapgui_hooks.h
+	$(CC) $(CCFLAGS) "$!" -Fo"$@"
+
+# 
+# Build resources.res.
+# 
+output\resources.res: \
+	resources.rc \
+	resources.h \
+	resources\logo.bmp
+	$(RC) $(RCFLAGS) "$!" -Fo"$@"
+
+# 
+# Build hook.obj.
+# 
+output\hook.obj: \
+	hook\hook.c \
+	hook\hook.h \
+	hook\ollyasm\disasm.h
+	$(CC) $(CCFLAGS) "$!" -Fo"$@"
+
+# 
+# Build asmserv.obj.
+# 
+output\asmserv.obj: \
+	hook\ollyasm\asmserv.c \
+	hook\ollyasm\disasm.h
+	$(CC) $(CCFLAGS) "$!" -Fo"$@"
+
+# 
+# Build disasm.obj.
+# 
+output\disasm.obj: \
+	hook\ollyasm\disasm.c \
+	hook\ollyasm\disasm.h
+	$(CC) $(CCFLAGS) "$!" -Fo"$@"
+
+# 
+# Build sapgui_hooks.obj.
+# 
+output\sapgui_hooks.obj: \
+	sapgui_hooks.c \
+	dllmain.h \
+	hook\hook.h \
+	resources.h \
+	sapgui_hooks.h
+	$(CC) $(CCFLAGS) "$!" -Fo"$@"
+
+.EXCLUDEDFILES:
+
+.SILENT:

dll/dllmain.c

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+#define WIN32_LEAN_AND_MEAN
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <windows.h>
+#include <windowsx.h>
+#include "dllmain.h"
+#include "sapgui_hooks.h"
+#include "resources.h"
+
+static HMODULE ghThisModule = NULL;
+static HBITMAP ghBmpLogo = NULL;
+static HBITMAP ghBmpLogoMask = NULL;
+
+
+BOOL WINAPI DllMain (HINSTANCE hInstance, DWORD iReason, void * pReserved) {
+	switch (iReason) {
+		case DLL_PROCESS_ATTACH:
+			ghThisModule = hInstance;
+
+			// Load our resources
+			LoadLogoBitmap();
+
+			// Install SAPGUI hooks //
+			if (! InstallSAPGUIHooks(hInstance)) {
+				MessageBox(NULL, APPLICATION_NAME" não foi inicializado corretamente.", APPLICATION_NAME, MB_ICONERROR);
+				ExitProcess(-1);
+			}
+
+			DisableThreadLibraryCalls (hInstance);
+			break;
+
+		case DLL_PROCESS_DETACH:
+			// Remove SAPGUI hooks //
+			if (! RemoveSAPGUIHooks())
+				MessageBox(NULL, APPLICATION_NAME" não foi finalizado corretamente.", APPLICATION_NAME, MB_ICONERROR);
+			break;
+	}
+
+	return TRUE;
+}
+
+
+void LoadLogoBitmap (void) {
+	BITMAP bm;
+
+	// Load logo bitmap
+	ghBmpLogo = LoadBitmap(ghThisModule, "BMP_LOGO");
+	GetObject(ghBmpLogo, sizeof(bm), &bm);
+
+	HDC hdcLogo = CreateCompatibleDC(NULL);
+	SelectBitmap(hdcLogo, ghBmpLogo);
+
+	COLORREF iBkColor = GetPixel(hdcLogo, 0, 0); // transparency color
+
+	// Print version information text
+	HFONT hFont = CreateFont(12, 0, 0, 0, FW_BLACK, FALSE, FALSE, 0,
+                        ANSI_CHARSET, OUT_DEFAULT_PRECIS,
+                        CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY,
+                        DEFAULT_PITCH | FW_NORMAL, "Courier New");
+	SelectObject(hdcLogo, hFont);
+	SetTextAlign(hdcLogo, TA_CENTER);
+	int iTextX = (bm.bmWidth/2 - 1);
+	int iTextY = 35;
+
+	SetBkMode(hdcLogo, TRANSPARENT);
+
+	SetTextColor(hdcLogo, RGB(0,0,0)); // black
+	TextOut(hdcLogo, iTextX, iTextY, APPLICATION_VERSION, sizeof(APPLICATION_VERSION) - 1);
+
+	// Mask out the background
+	ghBmpLogoMask = CreateBitmap(bm.bmWidth, bm.bmHeight, 1, 1, NULL);
+	HDC hdcLogoMask = CreateCompatibleDC(NULL);
+	SelectBitmap(hdcLogoMask, ghBmpLogoMask);
+
+	SetBkColor(hdcLogo, iBkColor); // get the mask color
+	BitBlt(hdcLogoMask, 0, 0, bm.bmWidth, bm.bmHeight, hdcLogo, 0, 0, SRCCOPY);
+
+	SetTextColor(hdcLogo, RGB(255,255,255));
+	SetBkColor(hdcLogo, RGB(0,0,0));
+	BitBlt(hdcLogo, 0, 0, bm.bmWidth, bm.bmHeight, hdcLogoMask, 0, 0, SRCAND);
+
+	// Cleanup
+	DeleteDC(hdcLogo);
+	DeleteDC(hdcLogoMask);
+	DeleteObject(hFont);
+}
+
+
+void PaintLogoBitmap(HWND hWindow, int iX, int iY) {
+	RECT stRect;
+	BITMAP bm;
+
+	// Calculate relative positions
+	GetWindowRect(hWindow, &stRect);
+	GetObject(ghBmpLogo, sizeof(bm), &bm);
+	if (iX < 0)
+		iX = stRect.right - stRect.left - bm.bmWidth + iX;
+	if (iY < 0)
+		iY = stRect.bottom - stRect.top - bm.bmHeight + iY;
+
+	// Paint the bitmap
+	HDC hDC = GetDC(hWindow);
+	HDC hdcMem = CreateCompatibleDC(NULL);
+	SelectBitmap(hdcMem, ghBmpLogoMask);
+	BitBlt(hDC, iX, iY, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCAND);
+	SelectBitmap(hdcMem, ghBmpLogo);
+	BitBlt(hDC, iX, iY, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCPAINT);
+
+	DeleteDC(hdcMem);
+}
+
+
+DWORD ShowLastErrorMessage (void) {
+	char szMessage[512];
+	DWORD iErrorCode;
+
+	// Get the last message code //
+	iErrorCode = GetLastError ();
+
+	// Show the system error text //
+	if ( FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, iErrorCode, 0,
+			szMessage, sizeof (szMessage), NULL));
+		MessageBox (NULL, szMessage, APPLICATION_NAME, MB_ICONERROR);
+
+	return iErrorCode;
+}

dll/dllmain.h

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+#ifndef DLLMAIN_H_INCLUDED
+#define DLLMAIN_H_INCLUDED
+
+#define APPLICATION_NAME "SAPGUI MultiLogon"
+#define APPLICATION_VERSION "v1.0.0"
+
+#define SPLASH_WINDOW_LOGO_X 250
+#define SPLASH_WINDOW_LOGO_Y 0
+
+#define LOGO_BITMAP_WIDTH 200
+#define LOGO_BITMAP_HEIGHT 200
+
+
+BOOL WINAPI DllMain (HINSTANCE hInstance, DWORD iReason, void * pReserved);
+
+void LoadLogoBitmap (void);
+void PaintLogoBitmap (HWND hWindow, int iX, int iY);
+
+DWORD ShowLastErrorMessage (void);
+
+
+#endif // DLLMAIN_H_INCLUDED