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hooks.c
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hooks.c
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/*
Copyright (C) 2015 Stefan Sundin
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 3 of the License, or
(at your option) any later version.
*/
#define UNICODE
#define _UNICODE
#define _WIN32_WINNT 0x0600
#define COBJMACROS
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <windows.h>
#include <shlwapi.h>
#include <commctrl.h>
#include <psapi.h>
#include <mmdeviceapi.h>
#include <endpointvolume.h>
// Stuff missing in MinGW
CLSID my_CLSID_MMDeviceEnumerator = {0xBCDE0395,0xE52F,0x467C,{0x8E,0x3D,0xC4,0x57,0x92,0x91,0x69,0x2E}};
GUID my_IID_IMMDeviceEnumerator = {0xA95664D2,0x9614,0x4F35,{0xA7,0x46,0xDE,0x8D,0xB6,0x36,0x17,0xE6}};
GUID my_IID_IAudioEndpointVolume = {0x5CDF2C82,0x841E,0x4546,{0x97,0x22,0x0C,0xF7,0x40,0x78,0x22,0x9A}};
// App
#define APP_NAME L"AltDrag"
#define AERO_THRESHOLD 5
// Boring stuff
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define RESTORE_TIMER WM_APP+1
#define MOVE_TIMER WM_APP+2
#define REHOOK_TIMER WM_APP+3
#define INIT_TIMER WM_APP+4
#define FOCUS_TIMER WM_APP+5
HWND g_hwnd;
int UnhookMouse();
int HookMouse();
// Enumerators
enum action {ACTION_NONE=0, ACTION_MOVE, ACTION_RESIZE, ACTION_MINIMIZE, ACTION_CENTER, ACTION_ALWAYSONTOP, ACTION_CLOSE, ACTION_LOWER, ACTION_ALTTAB, ACTION_VOLUME, ACTION_TRANSPARENCY};
enum button {BUTTON_NONE=0, BUTTON_LMB, BUTTON_MMB, BUTTON_RMB, BUTTON_MB4, BUTTON_MB5};
enum resize {RESIZE_NONE=0, RESIZE_TOP, RESIZE_RIGHT, RESIZE_BOTTOM, RESIZE_LEFT, RESIZE_CENTER};
enum cursor {HAND, SIZENWSE, SIZENESW, SIZENS, SIZEWE, SIZEALL};
// Some variables must be shared so that CallWndProc hooks can access them
#define shareattr __attribute__((section ("shared"), shared))
// Window database
#define NUMWNDDB 30
struct wnddata {
HWND hwnd;
short restore;
int width;
int height;
struct {
int width;
int height;
} last;
};
struct {
struct wnddata items[NUMWNDDB];
struct wnddata *pos;
} wnddb;
// State
struct {
HWND hwnd;
HWND mdiclient;
short alt;
short activated; // Keep track on if an action has begun since the hotkey was depressed, in order to successfully block Alt from triggering a menu
short ctrl;
short interrupted;
short updaterate;
unsigned int clicktime;
POINT clickpt;
POINT prevpt;
POINT offset;
struct {
enum resize x, y;
} resize;
short blockaltup;
short blockmouseup;
short ignorectrl;
short locked;
struct wnddata *wndentry;
struct {
HMONITOR monitor;
short maximized;
int width;
int height;
int right;
int bottom;
} origin;
struct {
POINT ptMinTrackSize;
POINT ptMaxTrackSize;
} mmi;
} state;
struct {
short shift;
short snap;
enum action action;
} sharedstate shareattr = {0, 0, ACTION_NONE};
// Snap
RECT *monitors = NULL;
int nummonitors = 0;
RECT *wnds = NULL;
int numwnds = 0;
HWND *hwnds = NULL;
int numhwnds = 0;
HWND progman = NULL;
// Settings
#define MAXKEYS 10
struct {
int AutoFocus;
int AutoSnap;
int AutoRemaximize;
int Aero;
int MDI;
int InactiveScroll;
int LowerWithMMB;
int SnapThreshold;
int FocusOnTyping;
struct {
int Cursor;
int MoveRate;
int ResizeRate;
} Performance;
struct {
unsigned char keys[MAXKEYS];
int length;
} Hotkeys;
struct {
enum action LMB, MMB, RMB, MB4, MB5, Scroll;
} Mouse;
} sharedsettings shareattr;
short sharedsettings_loaded shareattr = 0;
wchar_t inipath[MAX_PATH] shareattr;
// Blacklist (not shared since dynamically allocated)
struct blacklistitem {
wchar_t *title;
wchar_t *classname;
};
struct blacklist {
struct blacklistitem *items;
int length;
wchar_t *data;
};
struct {
struct blacklist ProcessBlacklist;
struct blacklist Blacklist;
struct blacklist Snaplist;
} settings = {{NULL,0}, {NULL,0}, {NULL,0}};
// Cursor data
HWND cursorwnd shareattr = NULL;
HCURSOR cursors[6];
// Hook data
HINSTANCE hinstDLL = NULL;
HHOOK mousehook = NULL;
// Msghook data
BOOL subclassed = FALSE;
enum action msgaction shareattr = ACTION_NONE;
short unload shareattr = 0;
// Error()
#ifdef DEBUG
#define ERROR_WRITETOFILE
#include "include/error.c"
#else
#define Error(a,b,c)
#endif
// Blacklist
int blacklisted(HWND hwnd, struct blacklist *list) {
wchar_t title[256]=L"", classname[256]=L"";
int i;
// Do not check if list is empty
if (list->length == 0) {
return 0;
}
// ProcessBlacklist is case-insensitive
if (list == &settings.ProcessBlacklist) {
DWORD pid;
GetWindowThreadProcessId(hwnd, &pid);
HANDLE proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
GetProcessImageFileName(proc, title, ARRAY_SIZE(title));
CloseHandle(proc);
PathStripPath(title);
for (i=0; i < list->length; i++) {
if (!wcsicmp(title,list->items[i].title)) {
return 1;
}
}
return 0;
}
GetWindowText(hwnd, title, ARRAY_SIZE(title));
GetClassName(hwnd, classname, ARRAY_SIZE(classname));
for (i=0; i < list->length; i++) {
if ((list->items[i].title == NULL && !wcscmp(classname,list->items[i].classname))
|| (list->items[i].classname == NULL && !wcscmp(title,list->items[i].title))
|| (list->items[i].title != NULL && list->items[i].classname != NULL && !wcscmp(title,list->items[i].title) && !wcscmp(classname,list->items[i].classname))) {
return 1;
}
}
return 0;
}
// Enumerate
int monitors_alloc = 0;
BOOL CALLBACK EnumMonitorsProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData) {
// Make sure we have enough space allocated
if (nummonitors == monitors_alloc) {
monitors_alloc++;
monitors = realloc(monitors, monitors_alloc*sizeof(RECT));
}
// Add monitor
monitors[nummonitors++] = *lprcMonitor;
return TRUE;
}
int wnds_alloc = 0;
BOOL CALLBACK EnumWindowsProc(HWND window, LPARAM lParam) {
// Make sure we have enough space allocated
if (numwnds == wnds_alloc) {
wnds_alloc += 20;
wnds = realloc(wnds, wnds_alloc*sizeof(RECT));
}
// Only store window if it's visible, not minimized to taskbar, not the window we are dragging and not blacklisted
RECT wnd;
LONG_PTR style;
if (window != state.hwnd && window != progman
&& IsWindowVisible(window) && !IsIconic(window)
&& (((style=GetWindowLongPtr(window,GWL_STYLE))&WS_CAPTION) == WS_CAPTION || blacklisted(window,&settings.Snaplist))
&& GetWindowRect(window,&wnd) != 0
) {
// Maximized?
if (IsZoomed(window)) {
// Get monitor size
HMONITOR monitor = MonitorFromWindow(window, MONITOR_DEFAULTTONEAREST);
MONITORINFO mi = { sizeof(MONITORINFO) };
GetMonitorInfo(monitor, &mi);
// Crop this window so that it does not exceed the size of the monitor
// This is done because when maximized, windows have an extra, invisible, border (a border that stretches onto other monitors)
wnd.left = max(wnd.left, mi.rcMonitor.left);
wnd.top = max(wnd.top, mi.rcMonitor.top);
wnd.right = min(wnd.right, mi.rcMonitor.right);
wnd.bottom = min(wnd.bottom, mi.rcMonitor.bottom);
}
// Return if this window is overlapped by another window
int i;
for (i=0; i < numwnds; i++) {
if (wnd.left >= wnds[i].left && wnd.top >= wnds[i].top && wnd.right <= wnds[i].right && wnd.bottom <= wnds[i].bottom) {
return TRUE;
}
}
// Add window
wnds[numwnds++] = wnd;
// Use this to print the title and classname of the windows that are snapable
/*
FILE *f = OpenLog(L"ab");
wchar_t title[100], classname[100];
GetWindowText(window, title, ARRAY_SIZE(title));
GetClassName(window, classname, ARRAY_SIZE(classname));
fwprintf(f, L"window: %s|%s\n", title, classname);
CloseLog(f);
*/
}
return TRUE;
}
int hwnds_alloc = 0;
BOOL CALLBACK EnumAltTabWindows(HWND window, LPARAM lParam) {
// Make sure we have enough space allocated
if (numhwnds == hwnds_alloc) {
hwnds_alloc += 20;
hwnds = realloc(hwnds, hwnds_alloc*sizeof(HWND));
}
// Only store window if it's visible, not minimized to taskbar and on the same monitor as the cursor
if (IsWindowVisible(window) && !IsIconic(window)
&& (GetWindowLongPtr(window,GWL_STYLE)&WS_CAPTION) == WS_CAPTION
&& state.origin.monitor == MonitorFromWindow(window,MONITOR_DEFAULTTONULL)
) {
hwnds[numhwnds++] = window;
}
return TRUE;
}
void EnumMdi() {
// Add MDIClient as the monitor
RECT wnd;
if (GetClientRect(state.mdiclient,&wnd) != 0) {
monitors[nummonitors++] = wnd;
}
if (sharedstate.snap < 2) {
return;
}
// Add all the siblings to the window
POINT mdiclientpt = {0,0};
if (ClientToScreen(state.mdiclient,&mdiclientpt) == FALSE) {
return;
}
HWND window = GetWindow(state.mdiclient, GW_CHILD);
while (window != NULL) {
if (window == state.hwnd) {
window = GetWindow(window, GW_HWNDNEXT);
continue;
}
if (numwnds == wnds_alloc) {
wnds_alloc += 20;
wnds = realloc(wnds, wnds_alloc*sizeof(RECT));
}
if (GetWindowRect(window,&wnd) != 0) {
wnds[numwnds++] = (RECT) { wnd.left-mdiclientpt.x, wnd.top-mdiclientpt.y, wnd.right-mdiclientpt.x, wnd.bottom-mdiclientpt.y };
}
window = GetWindow(window, GW_HWNDNEXT);
}
}
void Enum() {
nummonitors = 0;
numwnds = 0;
// MDI
if (state.mdiclient) {
EnumMdi();
return;
}
// Update handle to progman
if (!IsWindow(progman)) {
progman = FindWindow(L"Progman", L"Program Manager");
}
// Enumerate monitors
EnumDisplayMonitors(NULL, NULL, EnumMonitorsProc, 0);
// Enumerate windows
HWND taskbar = FindWindow(L"Shell_TrayWnd", NULL);
RECT wnd;
if (taskbar != NULL && GetWindowRect(taskbar,&wnd) != 0) {
wnds[numwnds++] = wnd;
}
if (sharedstate.snap >= 2) {
EnumWindows(EnumWindowsProc, 0);
}
// Use this to print the monitors and windows
/*
FILE *f = OpenLog(L"ab");
fwprintf(f, L"nummonitors: %d\n", nummonitors);
int k;
for (k=0; k < nummonitors; k++) {
fwprintf(f, L"mon #%02d: left %d, top %d, right %d, bottom %d\n", k, monitors[k].left, monitors[k].top, monitors[k].right, monitors[k].bottom);
}
fwprintf(f, L"numwnds: %d\n", numwnds);
for (k=0; k < numwnds; k++) {
fwprintf(f, L"wnd #%02d: %dx%d @ %dx%d\n", k, wnds[k].right-wnds[k].left, wnds[k].bottom-wnds[k].top, wnds[k].left, wnds[k].top);
}
fwprintf(f, L"\n");
CloseLog(f);
*/
}
void MoveSnap(int *posx, int *posy, int wndwidth, int wndheight) {
// Enumerate monitors and windows
Enum();
// thresholdx and thresholdy will shrink to make sure the dragged window will snap to the closest windows
int i, j, thresholdx, thresholdy, stuckx=0, stucky=0, stickx=0, sticky=0;
thresholdx = thresholdy = sharedsettings.SnapThreshold;
// Loop monitors and windows
for (i=0, j=0; i < nummonitors || j < numwnds; ) {
RECT snapwnd;
int snapinside;
// Get snapwnd
if (i < nummonitors) {
snapwnd = monitors[i];
snapinside = 1;
i++;
}
else if (j < numwnds) {
snapwnd = wnds[j];
snapinside = (sharedstate.snap != 2);
j++;
}
// Check if posx snaps
if ((snapwnd.top-thresholdx < *posy && *posy < snapwnd.bottom+thresholdx)
|| (*posy-thresholdx < snapwnd.top && snapwnd.top < *posy+wndheight+thresholdx)) {
int snapinside_cond = (snapinside || *posy+wndheight-thresholdx < snapwnd.top || snapwnd.bottom < *posy+thresholdx);
if (*posx-thresholdx < snapwnd.right && snapwnd.right < *posx+thresholdx) {
// The left edge of the dragged window will snap to this window's right edge
stuckx = 1;
stickx = snapwnd.right;
thresholdx = snapwnd.right-*posx;
}
else if (snapinside_cond && *posx+wndwidth-thresholdx < snapwnd.right && snapwnd.right < *posx+wndwidth+thresholdx) {
// The right edge of the dragged window will snap to this window's right edge
stuckx = 1;
stickx = snapwnd.right-wndwidth;
thresholdx = snapwnd.right-(*posx+wndwidth);
}
else if (snapinside_cond && *posx-thresholdx < snapwnd.left && snapwnd.left < *posx+thresholdx) {
// The left edge of the dragged window will snap to this window's left edge
stuckx = 1;
stickx = snapwnd.left;
thresholdx = snapwnd.left-*posx;
}
else if (*posx+wndwidth-thresholdx < snapwnd.left && snapwnd.left < *posx+wndwidth+thresholdx) {
// The right edge of the dragged window will snap to this window's left edge
stuckx = 1;
stickx = snapwnd.left-wndwidth;
thresholdx = snapwnd.left-(*posx+wndwidth);
}
}
// Check if posy snaps
if ((snapwnd.left-thresholdy < *posx && *posx < snapwnd.right+thresholdy)
|| (*posx-thresholdy < snapwnd.left && snapwnd.left < *posx+wndwidth+thresholdy)) {
int snapinside_cond = (snapinside || *posx+wndwidth-thresholdy < snapwnd.left || snapwnd.right < *posx+thresholdy);
if (*posy-thresholdy < snapwnd.bottom && snapwnd.bottom < *posy+thresholdy) {
// The top edge of the dragged window will snap to this window's bottom edge
stucky = 1;
sticky = snapwnd.bottom;
thresholdy = snapwnd.bottom-*posy;
}
else if (snapinside_cond && *posy+wndheight-thresholdy < snapwnd.bottom && snapwnd.bottom < *posy+wndheight+thresholdy) {
// The bottom edge of the dragged window will snap to this window's bottom edge
stucky = 1;
sticky = snapwnd.bottom-wndheight;
thresholdy = snapwnd.bottom-(*posy+wndheight);
}
else if (snapinside_cond && *posy-thresholdy < snapwnd.top && snapwnd.top < *posy+thresholdy) {
// The top edge of the dragged window will snap to this window's top edge
stucky = 1;
sticky = snapwnd.top;
thresholdy = snapwnd.top-*posy;
}
else if (*posy+wndheight-thresholdy < snapwnd.top && snapwnd.top < *posy+wndheight+thresholdy) {
// The bottom edge of the dragged window will snap to this window's top edge
stucky = 1;
sticky = snapwnd.top-wndheight;
thresholdy = snapwnd.top-(*posy+wndheight);
}
}
}
// Update posx and posy
if (stuckx) {
*posx = stickx;
}
if (stucky) {
*posy = sticky;
}
}
void ResizeSnap(int *posx, int *posy, int *wndwidth, int *wndheight) {
Enum(); // Enumerate monitors and windows
// thresholdx and thresholdy will shrink to make sure the dragged window will snap to the closest windows
int i, j, thresholdx, thresholdy, stuckleft=0, stucktop=0, stuckright=0, stuckbottom=0, stickleft=0, sticktop=0, stickright=0, stickbottom=0;
thresholdx = thresholdy = sharedsettings.SnapThreshold;
// Loop monitors and windows
for (i=0, j=0; i < nummonitors || j < numwnds; ) {
RECT snapwnd;
int snapinside;
// Get snapwnd
if (i < nummonitors) {
snapwnd = monitors[i];
snapinside = 1;
i++;
}
else if (j < numwnds) {
snapwnd = wnds[j];
snapinside = (sharedstate.snap != 2);
j++;
}
// Check if posx snaps
if ((snapwnd.top-thresholdx < *posy && *posy < snapwnd.bottom+thresholdx)
|| (*posy-thresholdx < snapwnd.top && snapwnd.top < *posy+*wndheight+thresholdx)) {
int snapinside_cond = (snapinside || *posy+*wndheight-thresholdx < snapwnd.top || snapwnd.bottom < *posy+thresholdx);
if (state.resize.x == RESIZE_LEFT && *posx-thresholdx < snapwnd.right && snapwnd.right < *posx+thresholdx) {
// The left edge of the dragged window will snap to this window's right edge
stuckleft = 1;
stickleft = snapwnd.right;
thresholdx = snapwnd.right-*posx;
}
else if (snapinside_cond && state.resize.x == RESIZE_RIGHT && *posx+*wndwidth-thresholdx < snapwnd.right && snapwnd.right < *posx+*wndwidth+thresholdx) {
// The right edge of the dragged window will snap to this window's right edge
stuckright = 1;
stickright = snapwnd.right;
thresholdx = snapwnd.right-(*posx+*wndwidth);
}
else if (snapinside_cond && state.resize.x == RESIZE_LEFT && *posx-thresholdx < snapwnd.left && snapwnd.left < *posx+thresholdx) {
// The left edge of the dragged window will snap to this window's left edge
stuckleft = 1;
stickleft = snapwnd.left;
thresholdx = snapwnd.left-*posx;
}
else if (state.resize.x == RESIZE_RIGHT && *posx+*wndwidth-thresholdx < snapwnd.left && snapwnd.left < *posx+*wndwidth+thresholdx) {
// The right edge of the dragged window will snap to this window's left edge
stuckright = 1;
stickright = snapwnd.left;
thresholdx = snapwnd.left-(*posx+*wndwidth);
}
}
// Check if posy snaps
if ((snapwnd.left-thresholdy < *posx && *posx < snapwnd.right+thresholdy)
|| (*posx-thresholdy < snapwnd.left && snapwnd.left < *posx+*wndwidth+thresholdy)) {
int snapinside_cond = (snapinside || *posx+*wndwidth-thresholdy < snapwnd.left || snapwnd.right < *posx+thresholdy);
if (state.resize.y == RESIZE_TOP && *posy-thresholdy < snapwnd.bottom && snapwnd.bottom < *posy+thresholdy) {
// The top edge of the dragged window will snap to this window's bottom edge
stucktop = 1;
sticktop = snapwnd.bottom;
thresholdy = snapwnd.bottom-*posy;
}
else if (snapinside_cond && state.resize.y == RESIZE_BOTTOM && *posy+*wndheight-thresholdy < snapwnd.bottom && snapwnd.bottom < *posy+*wndheight+thresholdy) {
// The bottom edge of the dragged window will snap to this window's bottom edge
stuckbottom = 1;
stickbottom = snapwnd.bottom;
thresholdy = snapwnd.bottom-(*posy+*wndheight);
}
else if (snapinside_cond && state.resize.y == RESIZE_TOP && *posy-thresholdy < snapwnd.top && snapwnd.top < *posy+thresholdy) {
// The top edge of the dragged window will snap to this window's top edge
stucktop = 1;
sticktop = snapwnd.top;
thresholdy = snapwnd.top-*posy;
}
else if (state.resize.y == RESIZE_BOTTOM && *posy+*wndheight-thresholdy < snapwnd.top && snapwnd.top < *posy+*wndheight+thresholdy) {
// The bottom edge of the dragged window will snap to this window's top edge
stuckbottom = 1;
stickbottom = snapwnd.top;
thresholdy = snapwnd.top-(*posy+*wndheight);
}
}
}
// Update posx, posy, wndwidth and wndheight
if (stuckleft) {
*wndwidth = *wndwidth+*posx-stickleft;
*posx = stickleft;
}
if (stucktop) {
*wndheight = *wndheight+*posy-sticktop;
*posy = sticktop;
}
if (stuckright) {
*wndwidth = stickright-*posx;
}
if (stuckbottom) {
*wndheight = stickbottom-*posy;
}
}
#ifdef _WIN64
// x64 keyhook needs only to check when the shift key is depressed
__declspec(dllexport) LRESULT CALLBACK LowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam) {
if (nCode == HC_ACTION) {
int vkey = ((PKBDLLHOOKSTRUCT)lParam)->vkCode;
if (vkey == VK_LSHIFT || vkey == VK_RSHIFT) {
if (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN) {
sharedstate.shift = 1;
sharedstate.snap = 3;
}
else if (wParam == WM_KEYUP || wParam == WM_SYSKEYUP) {
sharedstate.shift = 0;
sharedstate.snap = sharedsettings.AutoSnap;
}
}
else if (vkey == VK_SPACE
&& (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN)
&& (sharedstate.action || msgaction) && sharedstate.snap) {
sharedstate.snap = 0;
}
}
return CallNextHookEx(NULL, nCode, wParam, lParam);
}
#else
// Get action of button
int GetAction(int button) {
if (button == BUTTON_LMB) return sharedsettings.Mouse.LMB;
if (button == BUTTON_MMB) return sharedsettings.Mouse.MMB;
if (button == BUTTON_RMB) return sharedsettings.Mouse.RMB;
if (button == BUTTON_MB4) return sharedsettings.Mouse.MB4;
if (button == BUTTON_MB5) return sharedsettings.Mouse.MB5;
return ACTION_NONE;
}
// Check if key is assigned
int IsHotkey(int key) {
int i;
for (i=0; i < sharedsettings.Hotkeys.length; i++) {
if (key == sharedsettings.Hotkeys.keys[i]) {
return 1;
}
}
return 0;
}
void MouseMove() {
int posx, posy, wndwidth, wndheight;
// Make sure we got something to do
if (sharedstate.action != ACTION_MOVE && sharedstate.action != ACTION_RESIZE) {
return;
}
// Check if window still exists
if (!IsWindow(state.hwnd)) {
UnhookMouse();
return;
}
// Get cursor
POINT pt;
GetCursorPos(&pt);
// Restrict pt within origin monitor if Ctrl is being pressed
if ((GetAsyncKeyState(VK_CONTROL)&0x8000) && !state.ignorectrl) {
MONITORINFO mi = { sizeof(MONITORINFO) };
GetMonitorInfo(state.origin.monitor, &mi);
RECT fmon = mi.rcMonitor;
pt.x = (pt.x<fmon.left)?fmon.left: (pt.x>=fmon.right)?fmon.right-1: pt.x;
pt.y = (pt.y<fmon.top)?fmon.top: (pt.y>=fmon.bottom)?fmon.bottom-1: pt.y;
}
// Get window state
int maximized = IsZoomed(state.hwnd);
HMONITOR monitor = MonitorFromPoint(pt, MONITOR_DEFAULTTONEAREST);
// AutoRemaximize has priority over locked flag
if (sharedstate.action == ACTION_MOVE && sharedsettings.AutoRemaximize && state.origin.maximized && monitor != state.origin.monitor && !state.mdiclient) {
// Get monitor rect
MONITORINFO mi = { sizeof(MONITORINFO) };
GetMonitorInfo(monitor, &mi);
RECT mon = mi.rcWork;
RECT fmon = mi.rcMonitor;
// Center window on monitor and maximize it
WINDOWPLACEMENT wndpl = { sizeof(WINDOWPLACEMENT) };
GetWindowPlacement(state.hwnd, &wndpl);
wndpl.rcNormalPosition.left = fmon.left+(mon.right-mon.left)/2-state.origin.width/2;
wndpl.rcNormalPosition.top = fmon.top+(mon.bottom-mon.top)/2-state.origin.height/2;
wndpl.rcNormalPosition.right = wndpl.rcNormalPosition.left+state.origin.width;
wndpl.rcNormalPosition.bottom = wndpl.rcNormalPosition.top+state.origin.height;
if (maximized) {
wndpl.showCmd = SW_RESTORE;
SetWindowPlacement(state.hwnd, &wndpl);
}
wndpl.showCmd = SW_MAXIMIZE;
SetWindowPlacement(state.hwnd, &wndpl);
// Set this monitor as the origin (dirty hack maybe)
state.origin.monitor = monitor;
// Lock the current state
state.locked = 1;
// Restore window after a timeout if AutoRemaximize=2
if (sharedsettings.AutoRemaximize == 2) {
SetTimer(g_hwnd, RESTORE_TIMER, 1000, NULL);
}
return;
}
// Return if state is locked
if (state.locked) {
return;
}
// Get window size
RECT wnd, mon, fmon;
if (GetWindowRect(state.hwnd,&wnd) == 0) {
return;
}
// MDI
POINT mdiclientpt = {0,0};
if (state.mdiclient) {
RECT mdiclientwnd;
if (GetClientRect(state.mdiclient,&mdiclientwnd) == 0
|| ClientToScreen(state.mdiclient,&mdiclientpt) == FALSE) {
return;
}
mon = fmon = (RECT) {0, 0, mdiclientwnd.right-mdiclientwnd.left, mdiclientwnd.bottom-mdiclientwnd.top};
pt.x -= mdiclientpt.x;
pt.y -= mdiclientpt.y;
}
else {
// Get monitor info
MONITORINFO mi = { sizeof(MONITORINFO) };
GetMonitorInfo(monitor, &mi);
mon = mi.rcWork;
fmon = mi.rcMonitor;
}
// Get new position for window
if (sharedstate.action == ACTION_MOVE) {
posx = pt.x-state.offset.x;
posy = pt.y-state.offset.y;
wndwidth = wnd.right-wnd.left;
wndheight = wnd.bottom-wnd.top;
// Aero Snap
if (sharedsettings.Aero) {
// Restore window?
if (maximized
&& ((pt.y >= mon.top+AERO_THRESHOLD)
|| (fmon.left < pt.x && pt.x < mon.left+2*AERO_THRESHOLD)
|| (mon.right-2*AERO_THRESHOLD < pt.x && pt.x < fmon.right))) {
// Restore window
WINDOWPLACEMENT wndpl = { sizeof(WINDOWPLACEMENT) };
GetWindowPlacement(state.hwnd, &wndpl);
wndpl.showCmd = SW_RESTORE;
SetWindowPlacement(state.hwnd, &wndpl);
// Update wndwidth and wndheight
wndwidth = wndpl.rcNormalPosition.right-wndpl.rcNormalPosition.left;
wndheight = wndpl.rcNormalPosition.bottom-wndpl.rcNormalPosition.top;
}
// Move window
if (pt.x < mon.left+2*AERO_THRESHOLD && pt.y < mon.top+2*AERO_THRESHOLD) {
// Top left
state.wndentry->restore = 1;
wndwidth = (mon.right-mon.left)/2;
wndheight = (mon.bottom-mon.top)/2;
posx = mon.left;
posy = mon.top;
}
else if (mon.right-2*AERO_THRESHOLD < pt.x && pt.y < mon.top+2*AERO_THRESHOLD) {
// Top right
state.wndentry->restore = 1;
wndwidth = max(min((mon.right-mon.left)/2, state.mmi.ptMaxTrackSize.x), state.mmi.ptMinTrackSize.x);
wndheight = (mon.bottom-mon.top)/2;
posx = mon.right-wndwidth;
posy = mon.top;
}
else if (pt.x < mon.left+2*AERO_THRESHOLD && mon.bottom-2*AERO_THRESHOLD < pt.y) {
// Bottom left
state.wndentry->restore = 1;
wndwidth = (mon.right-mon.left)/2;
wndheight = max(min((mon.bottom-mon.top)/2, state.mmi.ptMaxTrackSize.y), state.mmi.ptMinTrackSize.y);
posx = mon.left;
posy = mon.bottom-wndheight;
}
else if (mon.right-2*AERO_THRESHOLD < pt.x && mon.bottom-2*AERO_THRESHOLD < pt.y) {
// Bottom right
state.wndentry->restore = 1;
wndwidth = max(min((mon.right-mon.left)/2, state.mmi.ptMaxTrackSize.x), state.mmi.ptMinTrackSize.x);
wndheight = max(min((mon.bottom-mon.top)/2, state.mmi.ptMaxTrackSize.y), state.mmi.ptMinTrackSize.y);
posx = mon.right-wndwidth;
posy = mon.bottom-wndheight;
}
else if (pt.y < mon.top+AERO_THRESHOLD && !state.mdiclient) {
// Top
if (!maximized) {
state.wndentry->restore = 0;
// Center window on monitor and maximize it
WINDOWPLACEMENT wndpl = { sizeof(WINDOWPLACEMENT) };
GetWindowPlacement(state.hwnd, &wndpl);
wndpl.rcNormalPosition.left = fmon.left+(mon.right-mon.left)/2-state.origin.width/2;
wndpl.rcNormalPosition.top = fmon.top+(mon.bottom-mon.top)/2-state.origin.height/2;
wndpl.rcNormalPosition.right = wndpl.rcNormalPosition.left+state.origin.width;
wndpl.rcNormalPosition.bottom = wndpl.rcNormalPosition.top+state.origin.height;
wndpl.showCmd = SW_MAXIMIZE;
SetWindowPlacement(state.hwnd, &wndpl);
}
return;
}
else if (pt.y < mon.top+2*AERO_THRESHOLD) {
// Top
state.wndentry->restore = 1;
wndwidth = max(min((mon.right-mon.left), state.mmi.ptMaxTrackSize.x), state.mmi.ptMinTrackSize.x);
wndheight = (mon.bottom-mon.top)/2;
posx = mon.left+(mon.right-mon.left)/2-wndwidth/2; // Center horizontally (if window has a max width)
posy = mon.top;
}
else if (mon.bottom-AERO_THRESHOLD < pt.y) {
// Bottom
state.wndentry->restore = 1;
wndwidth = max(min((mon.right-mon.left), state.mmi.ptMaxTrackSize.x), state.mmi.ptMinTrackSize.x);
wndheight = max(min((mon.bottom-mon.top)/2, state.mmi.ptMaxTrackSize.y), state.mmi.ptMinTrackSize.y);
posx = mon.left+(mon.right-mon.left)/2-wndwidth/2; // Center horizontally (if window has a max width)
posy = mon.bottom-wndheight;
}
else if (pt.x < mon.left+AERO_THRESHOLD) {
// Left
state.wndentry->restore = 1;
wndwidth = (mon.right-mon.left)/2;
wndheight = max(min((mon.bottom-mon.top), state.mmi.ptMaxTrackSize.y), state.mmi.ptMinTrackSize.y);
posx = mon.left;
posy = mon.top+(mon.bottom-mon.top)/2-wndheight/2; // Center vertically (if window has a max height)
}
else if (mon.right-AERO_THRESHOLD < pt.x) {
// Right
state.wndentry->restore = 1;
wndwidth = max(min((mon.right-mon.left)/2, state.mmi.ptMaxTrackSize.x), state.mmi.ptMinTrackSize.x);
wndheight = max(min((mon.bottom-mon.top), state.mmi.ptMaxTrackSize.y), state.mmi.ptMinTrackSize.y);
posx = mon.right-wndwidth;
posy = mon.top+(mon.bottom-mon.top)/2-wndheight/2; // Center vertically (if window has a max height)
}
else if (state.wndentry->restore) {
// Restore original window size
state.wndentry->restore = 0;
wndwidth = state.origin.width;
wndheight = state.origin.height;
}
// Aero-move the window?
if (state.wndentry->restore) {
state.wndentry->width = state.origin.width;
state.wndentry->height = state.origin.height;
// Move
MoveWindow(state.hwnd, posx, posy, wndwidth, wndheight, TRUE);
// Get new size after move
// Doing this since wndwidth and wndheight might be wrong if the window is resized in chunks
GetWindowRect(state.hwnd, &wnd);
state.wndentry->last.width = wnd.right-wnd.left;
state.wndentry->last.height = wnd.bottom-wnd.top;
// We are done
return;
}
/*
FILE *f = OpenLog(L"wb");
int k;
for (k=0; k < NUMWNDDB; k++) {
struct wnddata *wnd = &wnddb.items[k];
fwprintf(f, L"wnd #%03d (0x%08x): restore:%d, origin:%4dx%4d, last:%4dx%4d", k, wnd->hwnd, wnd->restore, wnd->width, wnd->height, wnd->last.width, wnd->last.height);
if (wnd == wnddb.pos) {
fwprintf(f, L" <--");
}
fwprintf(f, L"\n");
}
CloseLog(f);
*/
}
// Check if the window will snap anywhere
if (sharedstate.snap) {
MoveSnap(&posx, &posy, wndwidth, wndheight);
}
}
else if (sharedstate.action == ACTION_RESIZE) {
// Clear restore flag
state.wndentry->restore = 0;
// Figure out new placement
if (state.resize.x == RESIZE_CENTER && state.resize.y == RESIZE_CENTER) {
posx = wnd.left-(pt.x-state.offset.x)-mdiclientpt.x;
posy = wnd.top-(pt.y-state.offset.y)-mdiclientpt.y;
wndwidth = wnd.right-wnd.left+2*(pt.x-state.offset.x);
wndheight = wnd.bottom-wnd.top+2*(pt.y-state.offset.y);
state.offset.x = pt.x;
state.offset.y = pt.y;
}
else {
RECT rootwnd = {0,0,0,0};
if (state.mdiclient) {
HWND root = GetAncestor(state.hwnd, GA_ROOT);
GetClientRect(root, &rootwnd);
}
if (state.resize.y == RESIZE_TOP) {
wndheight = max(min((wnd.bottom-pt.y+state.offset.y)-mdiclientpt.y, state.mmi.ptMaxTrackSize.y), state.mmi.ptMinTrackSize.y);
posy = state.origin.bottom-wndheight;
}
else if (state.resize.y == RESIZE_CENTER) {
posy = wnd.top-rootwnd.top-mdiclientpt.y;
wndheight = wnd.bottom-wnd.top;
}
else if (state.resize.y == RESIZE_BOTTOM) {
posy = wnd.top-rootwnd.top-mdiclientpt.y;
wndheight = pt.y-posy+state.offset.y;
}
if (state.resize.x == RESIZE_LEFT) {
wndwidth = max(min((wnd.right-pt.x+state.offset.x)-mdiclientpt.x, state.mmi.ptMaxTrackSize.x), state.mmi.ptMinTrackSize.x);
posx = state.origin.right-wndwidth;
}
else if (state.resize.x == RESIZE_CENTER) {
posx = wnd.left-rootwnd.left-mdiclientpt.x;
wndwidth = wnd.right-wnd.left;
}
else if (state.resize.x == RESIZE_RIGHT) {
posx = wnd.left-rootwnd.left-mdiclientpt.x;
wndwidth = pt.x-posx+state.offset.x;
}
// Check if the window will snap anywhere
if (sharedstate.snap) {
ResizeSnap(&posx, &posy, &wndwidth, &wndheight);
}
}
}
MoveWindow(state.hwnd, posx, posy, wndwidth, wndheight, TRUE);
}
__declspec(dllexport) LRESULT CALLBACK LowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam) {
if (nCode == HC_ACTION) {
int vkey = ((PKBDLLHOOKSTRUCT)lParam)->vkCode;
if (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN) {
if (IsHotkey(vkey)) {
// Block this keypress if an we're already pressing a hotkey or an action is happening
if (state.activated && !state.alt && sharedstate.action) {
state.alt = 1;
}
if (state.activated && state.alt) {
return 1;
}
// Update state
state.alt = 1;
state.blockaltup = 0;
state.blockmouseup = 0;
state.interrupted = 0;
// Ctrl as hotkey should not trigger Ctrl-focusing when starting dragging, releasing and pressing it again will focus though
if (!sharedstate.action && (vkey == VK_LCONTROL || vkey == VK_RCONTROL)) {
state.ignorectrl = 1;
}
// Hook mouse
HookMouse();
}
else if (vkey == VK_LSHIFT || vkey == VK_RSHIFT) {
sharedstate.snap = 3;
if (!sharedstate.shift) {
sharedstate.shift = 1;
MouseMove();
}
// Block keydown to prevent Windows from changing keyboard layout
if (state.alt && sharedstate.action) {
return 1;
}
}
else if (vkey == VK_SPACE && (sharedstate.action || msgaction) && sharedstate.snap) {
sharedstate.snap = 0;
if (sharedstate.action) {
return 1;
}
}
else if (vkey == VK_ESCAPE) {
sharedstate.action = ACTION_NONE;
UnhookMouse();
return CallNextHookEx(NULL, nCode, wParam, lParam);
}
else {
state.interrupted = 1;
}
if (sharedstate.action && (vkey == VK_LCONTROL || vkey == VK_RCONTROL) && !state.ignorectrl && !state.ctrl) {
POINT pt;
GetCursorPos(&pt);
state.locked = 0;
state.origin.maximized = 0;
state.origin.monitor = MonitorFromPoint(pt, MONITOR_DEFAULTTONEAREST);
SetForegroundWindow(state.hwnd);
MouseMove();
state.ctrl = 1;
}
if (sharedsettings.FocusOnTyping && !sharedstate.action && !state.alt) {
POINT pt;
GetCursorPos(&pt);
HWND hoverwnd = WindowFromPoint(pt);
if (hoverwnd == NULL) {
return CallNextHookEx(NULL, nCode, wParam, lParam);