mirror of
https://github.com/gnif/LookingGlass.git
synced 2025-08-09 20:24:14 +00:00
[c-host] renamed finall to just plain host
This commit is contained in:
Geoffrey McRae
104
host/platform/Windows/src/mousehook.c
Normal file
104
host/platform/Windows/src/mousehook.c
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@@ -0,0 +1,104 @@
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/*
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Looking Glass - KVM FrameRelay (KVMFR) Client
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Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
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https://looking-glass.hostfission.com
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "windows/mousehook.h"
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#include "common/windebug.h"
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#include "platform.h"
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#include <windows.h>
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#include <stdbool.h>
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struct mouseHook
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{
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bool installed;
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HHOOK hook;
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MouseHookFn callback;
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int x, y;
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};
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static struct mouseHook mouseHook = { 0 };
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// forwards
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static LRESULT WINAPI mouseHook_hook(int nCode, WPARAM wParam, LPARAM lParam);
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static LRESULT msg_callback(WPARAM wParam, LPARAM lParam);
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void mouseHook_install(MouseHookFn callback)
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{
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struct MSG_CALL_FUNCTION cf;
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cf.fn = msg_callback;
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cf.wParam = 1;
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cf.lParam = (LPARAM)callback;
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sendAppMessage(WM_CALL_FUNCTION, 0, (LPARAM)&cf);
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}
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void mouseHook_remove()
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{
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struct MSG_CALL_FUNCTION cf;
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cf.fn = msg_callback;
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cf.wParam = 0;
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cf.lParam = 0;
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sendAppMessage(WM_CALL_FUNCTION, 0, (LPARAM)&cf);
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}
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static LRESULT msg_callback(WPARAM wParam, LPARAM lParam)
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{
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if (wParam)
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{
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if (mouseHook.installed)
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{
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DEBUG_WARN("Mouse hook already installed");
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return 0;
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}
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mouseHook.hook = SetWindowsHookEx(WH_MOUSE_LL, mouseHook_hook, NULL, 0);
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if (!mouseHook.hook)
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{
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DEBUG_WINERROR("Failed to install the mouse hook", GetLastError());
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return 0;
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}
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mouseHook.installed = true;
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mouseHook.callback = (MouseHookFn)lParam;
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}
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else
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{
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if (!mouseHook.installed)
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return 0;
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UnhookWindowsHookEx(mouseHook.hook);
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mouseHook.installed = false;
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}
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return 0;
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}
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static LRESULT WINAPI mouseHook_hook(int nCode, WPARAM wParam, LPARAM lParam)
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{
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if (nCode == HC_ACTION && wParam == WM_MOUSEMOVE)
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{
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MSLLHOOKSTRUCT *msg = (MSLLHOOKSTRUCT *)lParam;
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if (mouseHook.x != msg->pt.x || mouseHook.y != msg->pt.y)
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{
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mouseHook.x = msg->pt.x;
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mouseHook.y = msg->pt.y;
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mouseHook.callback(msg->pt.x, msg->pt.y);
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}
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}
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return CallNextHookEx(mouseHook.hook, nCode, wParam, lParam);
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}
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309
host/platform/Windows/src/platform.c
Normal file
309
host/platform/Windows/src/platform.c
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@@ -0,0 +1,309 @@
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/*
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Looking Glass - KVM FrameRelay (KVMFR) Client
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Copyright (C) 2017-2020 Geoffrey McRae <geoff@hostfission.com>
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https://looking-glass.hostfission.com
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "platform.h"
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#include "windows/mousehook.h"
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#include <windows.h>
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#include <shellapi.h>
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#include <fcntl.h>
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#include "interface/platform.h"
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#include "common/debug.h"
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#include "common/windebug.h"
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#include "common/option.h"
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#include "common/locking.h"
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#include "common/thread.h"
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#define ID_MENU_OPEN_LOG 3000
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#define ID_MENU_EXIT 3001
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struct AppState
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{
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LARGE_INTEGER perfFreq;
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HINSTANCE hInst;
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int argc;
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char ** argv;
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char executable[MAX_PATH + 1];
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HWND messageWnd;
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HMENU trayMenu;
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};
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static struct AppState app = {0};
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HWND MessageHWND;
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// undocumented API to adjust the system timer resolution (yes, its a nasty hack)
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typedef NTSTATUS (__stdcall *ZwSetTimerResolution_t)(ULONG RequestedResolution, BOOLEAN Set, PULONG ActualResolution);
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static ZwSetTimerResolution_t ZwSetTimerResolution = NULL;
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LRESULT CALLBACK DummyWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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switch(msg)
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{
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case WM_DESTROY:
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PostQuitMessage(0);
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break;
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case WM_CALL_FUNCTION:
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{
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struct MSG_CALL_FUNCTION * cf = (struct MSG_CALL_FUNCTION *)lParam;
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return cf->fn(cf->wParam, cf->lParam);
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}
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case WM_TRAYICON:
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{
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if (lParam == WM_RBUTTONDOWN)
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{
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POINT curPoint;
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GetCursorPos(&curPoint);
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SetForegroundWindow(hwnd);
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UINT clicked = TrackPopupMenu(
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app.trayMenu,
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TPM_RETURNCMD | TPM_NONOTIFY,
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curPoint.x,
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curPoint.y,
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0,
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hwnd,
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NULL
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);
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if (clicked == ID_MENU_EXIT ) app_quit();
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else if (clicked == ID_MENU_OPEN_LOG)
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{
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const char * logFile = option_get_string("os", "logFile");
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if (strcmp(logFile, "stderr") == 0)
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DEBUG_INFO("Ignoring request to open the logFile, logging to stderr");
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else
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ShellExecute(NULL, NULL, logFile, NULL, NULL, SW_SHOWNORMAL);
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}
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}
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break;
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}
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default:
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return DefWindowProc(hwnd, msg, wParam, lParam);
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}
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return 0;
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}
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static int appThread(void * opaque)
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{
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// register our TrayIcon
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NOTIFYICONDATA iconData =
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{
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.cbSize = sizeof(NOTIFYICONDATA),
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.hWnd = app.messageWnd,
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.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP,
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.uCallbackMessage = WM_TRAYICON,
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.szTip = "Looking Glass (host)"
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};
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iconData.hIcon = LoadIcon(app.hInst, IDI_APPLICATION);
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Shell_NotifyIcon(NIM_ADD, &iconData);
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int result = app_main(app.argc, app.argv);
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Shell_NotifyIcon(NIM_DELETE, &iconData);
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mouseHook_remove();
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SendMessage(app.messageWnd, WM_DESTROY, 0, 0);
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return result;
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}
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LRESULT sendAppMessage(UINT Msg, WPARAM wParam, LPARAM lParam)
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{
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return SendMessage(app.messageWnd, Msg, wParam, lParam);
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}
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static BOOL WINAPI CtrlHandler(DWORD dwCtrlType)
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{
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if (dwCtrlType == CTRL_C_EVENT)
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{
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SendMessage(app.messageWnd, WM_CLOSE, 0, 0);
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return TRUE;
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}
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return FALSE;
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}
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int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
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{
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/* this is a bit of a hack but without this --help will produce no output in a windows command prompt */
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if (!IsDebuggerPresent() && AttachConsole(ATTACH_PARENT_PROCESS))
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{
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HANDLE std_err = GetStdHandle(STD_ERROR_HANDLE);
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HANDLE std_out = GetStdHandle(STD_OUTPUT_HANDLE);
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int std_err_fd = _open_osfhandle((intptr_t)std_err, _O_TEXT);
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int std_out_fd = _open_osfhandle((intptr_t)std_out, _O_TEXT);
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if (std_err_fd > 0)
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*stderr = *_fdopen(std_err_fd, "w");
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if (std_out_fd > 0)
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*stdout = *_fdopen(std_out_fd, "w");
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}
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int result = 0;
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app.hInst = hInstance;
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char tempPath[MAX_PATH+1];
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GetTempPathA(sizeof(tempPath), tempPath);
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int len = snprintf(NULL, 0, "%slooking-glass-host.txt", tempPath);
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char * logFilePath = malloc(len + 1);
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sprintf(logFilePath, "%slooking-glass-host.txt", tempPath);
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struct Option options[] =
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{
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{
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.module = "os",
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.name = "logFile",
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.description = "The log file to write to",
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.type = OPTION_TYPE_STRING,
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.value.x_string = logFilePath
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},
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{0}
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};
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option_register(options);
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free(logFilePath);
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// convert the command line to the standard argc and argv
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LPWSTR * wargv = CommandLineToArgvW(GetCommandLineW(), &app.argc);
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app.argv = malloc(sizeof(char *) * app.argc);
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for(int i = 0; i < app.argc; ++i)
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{
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const size_t s = (wcslen(wargv[i])+1) * 2;
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app.argv[i] = malloc(s);
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wcstombs(app.argv[i], wargv[i], s);
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}
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LocalFree(wargv);
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GetModuleFileName(NULL, app.executable, sizeof(app.executable));
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// setup a handler for ctrl+c
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SetConsoleCtrlHandler(CtrlHandler, TRUE);
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// create a message window so that our message pump works
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WNDCLASSEX wx = {};
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wx.cbSize = sizeof(WNDCLASSEX);
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wx.lpfnWndProc = DummyWndProc;
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wx.hInstance = hInstance;
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wx.lpszClassName = "DUMMY_CLASS";
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wx.hIcon = LoadIcon(NULL, IDI_APPLICATION);
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wx.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
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wx.hCursor = LoadCursor(NULL, IDC_ARROW);
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wx.hbrBackground = (HBRUSH)COLOR_APPWORKSPACE;
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if (!RegisterClassEx(&wx))
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{
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DEBUG_ERROR("Failed to register message window class");
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result = -1;
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goto finish;
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}
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app.messageWnd = CreateWindowEx(0, "DUMMY_CLASS", "DUMMY_NAME", 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, NULL, NULL);
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// set the global
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MessageHWND = app.messageWnd;
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app.trayMenu = CreatePopupMenu();
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AppendMenu(app.trayMenu, MF_STRING , ID_MENU_OPEN_LOG, "Open Log File");
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AppendMenu(app.trayMenu, MF_SEPARATOR, 0 , NULL );
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AppendMenu(app.trayMenu, MF_STRING , ID_MENU_EXIT , "Exit" );
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// create the application thread
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LGThread * thread;
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if (!lgCreateThread("appThread", appThread, NULL, &thread))
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{
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DEBUG_ERROR("Failed to create the main application thread");
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result = -1;
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goto finish;
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}
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while(true)
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{
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MSG msg;
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BOOL bRet = GetMessage(&msg, NULL, 0, 0);
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if (bRet > 0)
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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continue;
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}
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else if (bRet < 0)
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{
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DEBUG_ERROR("Unknown error from GetMessage");
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result = -1;
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goto shutdown;
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}
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break;
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}
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shutdown:
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DestroyMenu(app.trayMenu);
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app_quit();
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if (!lgJoinThread(thread, &result))
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{
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DEBUG_ERROR("Failed to join the main application thread");
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result = -1;
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}
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finish:
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for(int i = 0; i < app.argc; ++i)
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free(app.argv[i]);
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free(app.argv);
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return result;
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}
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bool app_init()
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{
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const char * logFile = option_get_string("os", "logFile" );
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// redirect stderr to a file
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if (logFile && strcmp(logFile, "stderr") != 0)
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freopen(logFile, "a", stderr);
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// always flush stderr
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setbuf(stderr, NULL);
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// Increase the timer resolution
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ZwSetTimerResolution = (ZwSetTimerResolution_t)GetProcAddress(GetModuleHandle("ntdll.dll"), "ZwSetTimerResolution");
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if (ZwSetTimerResolution)
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{
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ULONG actualResolution;
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ZwSetTimerResolution(1, true, &actualResolution);
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DEBUG_INFO("System timer resolution: %.2f ns", (float)actualResolution / 100.0f);
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}
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// get the performance frequency for spinlocks
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QueryPerformanceFrequency(&app.perfFreq);
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return true;
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}
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const char * os_getExecutable()
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{
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return app.executable;
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}
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HWND os_getMessageWnd()
|
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{
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return app.messageWnd;
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}
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33
host/platform/Windows/src/platform.h
Normal file
33
host/platform/Windows/src/platform.h
Normal file
@@ -0,0 +1,33 @@
|
||||
/*
|
||||
Looking Glass - KVM FrameRelay (KVMFR) Client
|
||||
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
|
||||
https://looking-glass.hostfission.com
|
||||
|
||||
This program is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License as published by the Free Software
|
||||
Foundation; either version 2 of the License, or (at your option) any later
|
||||
version.
|
||||
|
||||
This program is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License along with
|
||||
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
||||
Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include <windows.h>
|
||||
|
||||
#define WM_CALL_FUNCTION (WM_USER+1)
|
||||
#define WM_TRAYICON (WM_USER+2)
|
||||
|
||||
typedef LRESULT (*CallFunction)(WPARAM wParam, LPARAM lParam);
|
||||
struct MSG_CALL_FUNCTION
|
||||
{
|
||||
CallFunction fn;
|
||||
WPARAM wParam;
|
||||
LPARAM lParam;
|
||||
};
|
||||
|
||||
LRESULT sendAppMessage(UINT Msg, WPARAM wParam, LPARAM lParam);
|
||||
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