Hello everyone,
I encountered a few more problems while creating my system-wide
makro program.
1)
I can't load my dll with LoadLibraryW, only LoadLibraryA. Why?
2)
The LoadLibraryA function "fails" with Error Code 127 - I still
get a Handle and can register my function as a
LowLevelKeyboardProc, so I'm not really sure what went wrong.
Google tells me Code 127 means my .dll is dependant on other
.dlls which can't be found, but I have no idea which/why/how.
3)
I intend to use the SendInput function to simulate Unicode
character presses - to be precise, I want to inject this -->
ಠ_ಠ <-- whenever I press CTRL+SHIFT+ALT+Q (for example).
Sadly SendInput gives me Error Code 87 ("Incorrect Parameter"),
but I don't know what I'm doing wrong.
I hope you guys can help me out!
This is the .dll code:
< ----- CODE BEGIN ----- >
import std.c.windows.windows;
import core.sys.windows.dll;
import core.runtime;
import std.stdio;
//const auto INPUT_KEYBOARD = 1;
//const auto KEYEVENTF_UNICODE = 4;
extern (C) void gc_init();
extern (C) void gc_term();
extern (C) void _minit();
extern (C) void _moduleCtor();
extern (C) void _moduleDtor();
extern (Windows) struct KBDLLHOOKSTRUCT {
DWORD vkCode;
DWORD scanCode;
DWORD flags;
DWORD time;
ULONG_PTR dwExtraInfo;
};
extern (Windows) struct KEYBDINPUT {
WORD wVk;
WORD wScan;
DWORD dwFlags;
DWORD time;
ULONG_PTR dwExtraInfo;
};
extern (Windows) struct INPUT {
DWORD type;
KEYBDINPUT ki;
};
extern (Windows) LRESULT CallNextHookEx(
HANDLE hhk,
int nCode,
WPARAM wParam,
LPARAM lParam
);
extern (Windows) SHORT GetKeyState(
int nVirtKey
);
extern (Windows) UINT SendInput(
UINT nInputs,
INPUT* pInputs,
int cbSize
);
__gshared HINSTANCE g_hInst;
extern (Windows) BOOL DllMain(HINSTANCE hInstance, ULONG
ulReason, LPVOID pvReserved) {
g_hInst = hInstance;
switch (ulReason) {
case DLL_PROCESS_ATTACH:
g_hInst = hInstance;
Runtime.initialize;
//dll_process_attach( hInstance, true );
break;
case DLL_PROCESS_DETACH:
//dll_process_detach( hInstance, true );
break;
case DLL_THREAD_ATTACH:
//dll_thread_attach( true, true );
break;
case DLL_THREAD_DETACH:
//dll_thread_detach( true, true );
break;
default:
return true;
}
return true;
}
extern (Windows) LRESULT LowLevelKeyboardProc(int code, WPARAM
wParam, LPARAM lParam)
{
Runtime.initialize;
//MessageBoxA(null, "HALLO", "OK",0);
KBDLLHOOKSTRUCT* details = cast(KBDLLHOOKSTRUCT*) lParam;
if(code == 0 && wParam == WM_KEYDOWN)
{
if(details.vkCode == 0x51) {
SHORT shiftkey = GetKeyState( VK_SHIFT );
SHORT ctrlkey = GetKeyState( VK_CONTROL );
SHORT altkey = GetKeyState ( VK_MENU );
if( ( shiftkey == -127 || shiftkey == -128 ) && ( ctrlkey ==
-127 || ctrlkey == -128 ) && ( altkey == -127 || altkey == -128 )
)
{
//MessageBoxA(null, "BOOM", "OK",0);
INPUT[3] toSend = new INPUT[3];
toSend[0].type = 1;
toSend[0].ki.wVk = 0;
toSend[0].ki.wScan = 0x0CA0;
toSend[0].ki.dwFlags = 4;
toSend[0].ki.time = 0;
toSend[0].ki.dwExtraInfo = details.dwExtraInfo;
toSend[1].type = 1;
toSend[1].ki.wVk = 0;
toSend[1].ki.wScan = 0x005F;
toSend[1].ki.dwFlags = 4;
toSend[1].ki.time = 0;
toSend[1].ki.dwExtraInfo = details.dwExtraInfo;
toSend[2].type = 1;
toSend[2].ki.wVk = 0;
toSend[2].ki.wScan = 0x0CA0;
toSend[2].ki.dwFlags = 4;
toSend[2].ki.time = 0;
toSend[2].ki.dwExtraInfo = details.dwExtraInfo;
SendInput( cast(UINT)3, toSend.ptr,
toSend[0].sizeof );
writeln(GetLastError());
//MessageBoxA(null, cast(char*)GetLastError(),
"OK",0);
return 1;
}
}
}
return CallNextHookEx(null, code, wParam, lParam);
}
< ----- CODE END ----- >
