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DeskIcons/deskicons.c
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// DeskIcons: send any window to the desktop as a draggable icon.
// Shift+click a minimize button, or press Ctrl+Alt+I, to iconify the window.
// Double-click the icon to bring the window back.
#ifndef UNICODE
#define UNICODE
#endif
#ifndef _UNICODE
#define _UNICODE
#endif
#define WIN32_LEAN_AND_MEAN
#define _WIN32_WINNT 0x0A00
#include <windows.h>
#include <windowsx.h>
#include <shellapi.h>
#include <shlobj.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#define APP_NAME L"DeskIcons"
#define WM_TRAY (WM_APP + 1)
#define WM_ICONIFY (WM_APP + 2)
#define WM_RESTOREIDX (WM_APP + 3)
#define WM_CLOSEIDX (WM_APP + 4)
#define HOTKEY_ID 1
#define MAX_ITEMS 256
#define TIMER_CHECK 1
#define IDM_RESTOREALL 100
#define IDM_ONTOP 101
#define IDM_STARTUP 102
#define IDM_HELP 103
#define IDM_EXIT 104
#define IDM_SHOWICONS 105
#define IDM_I_RESTORE 200
#define IDM_I_CLOSE 201
typedef struct {
BOOL used;
HWND target;
HWND iconWnd;
DWORD pid;
HICON hIcon;
BOOL hover;
WCHAR title[256];
} Item;
static Item g_items[MAX_ITEMS];
static HINSTANCE g_inst;
static HWND g_main;
static HHOOK g_mouseHook;
static volatile BOOL g_swallowUp;
static BOOL g_onTop;
static BOOL g_showIcons;
static BOOL g_hotkeyOk;
static NOTIFYICONDATAW g_nid;
static HFONT g_font;
static int g_dpi = 96;
static UINT g_taskbarCreated;
static WCHAR g_stateFile[MAX_PATH];
static HWND g_lastFg;
// drag state
static BOOL g_pressed, g_dragging;
static POINT g_dragStart, g_dragOrig;
static int S(int v) { return MulDiv(v, g_dpi, 96); }
static int ItemW(void) { return g_showIcons ? S(88) : S(120); }
static int ItemH(void) { return g_showIcons ? S(96) : S(58); }
/* ---------------- settings ---------------- */
static DWORD RegGetDword(const WCHAR *name, DWORD def) {
DWORD v = def, sz = sizeof(v);
if (RegGetValueW(HKEY_CURRENT_USER, L"Software\\DeskIcons", name, RRF_RT_REG_DWORD, NULL, &v, &sz) != ERROR_SUCCESS)
return def;
return v;
}
static void RegSetDword(const WCHAR *name, DWORD v) {
HKEY k;
if (RegCreateKeyExW(HKEY_CURRENT_USER, L"Software\\DeskIcons", 0, NULL, 0, KEY_WRITE, NULL, &k, NULL) == ERROR_SUCCESS) {
RegSetValueExW(k, name, 0, REG_DWORD, (BYTE *)&v, sizeof(v));
RegCloseKey(k);
}
}
static const WCHAR *RUN_KEY = L"Software\\Microsoft\\Windows\\CurrentVersion\\Run";
static BOOL StartupEnabled(void) {
WCHAR buf[MAX_PATH * 2]; DWORD sz = sizeof(buf);
return RegGetValueW(HKEY_CURRENT_USER, RUN_KEY, APP_NAME, RRF_RT_REG_SZ, NULL, buf, &sz) == ERROR_SUCCESS;
}
static void SetStartup(BOOL on) {
HKEY k;
if (RegOpenKeyExW(HKEY_CURRENT_USER, RUN_KEY, 0, KEY_WRITE, &k) != ERROR_SUCCESS) return;
if (on) {
WCHAR exe[MAX_PATH], val[MAX_PATH + 4];
GetModuleFileNameW(NULL, exe, MAX_PATH);
swprintf(val, MAX_PATH + 4, L"\"%ls\"", exe);
RegSetValueExW(k, APP_NAME, 0, REG_SZ, (BYTE *)val, (DWORD)((wcslen(val) + 1) * sizeof(WCHAR)));
} else {
RegDeleteValueW(k, APP_NAME);
}
RegCloseKey(k);
}
/* ---------------- state file (crash recovery) ---------------- */
static void SaveState(void) {
FILE *f = _wfopen(g_stateFile, L"w");
if (!f) return;
for (int i = 0; i < MAX_ITEMS; i++) {
Item *it = &g_items[i];
if (!it->used) continue;
RECT r; GetWindowRect(it->iconWnd, &r);
fprintf(f, "%llx %lu %ld %ld\n", (unsigned long long)(ULONG_PTR)it->target,
(unsigned long)it->pid, r.left, r.top);
}
fclose(f);
}
/* ---------------- helpers ---------------- */
static int CountItems(void) {
int n = 0;
for (int i = 0; i < MAX_ITEMS; i++) if (g_items[i].used) n++;
return n;
}
static void UpdateTrayTip(void) {
int n = CountItems();
if (n == 0) swprintf(g_nid.szTip, 128, L"DeskIcons");
else swprintf(g_nid.szTip, 128, L"DeskIcons (%d window%ls on the desktop)", n, n == 1 ? L"" : L"s");
g_nid.uFlags = NIF_TIP;
Shell_NotifyIconW(NIM_MODIFY, &g_nid);
}
static void Balloon(const WCHAR *title, const WCHAR *text) {
g_nid.uFlags = NIF_INFO;
wcsncpy(g_nid.szInfoTitle, title, 63); g_nid.szInfoTitle[63] = 0;
wcsncpy(g_nid.szInfo, text, 255); g_nid.szInfo[255] = 0;
g_nid.dwInfoFlags = NIIF_INFO;
Shell_NotifyIconW(NIM_MODIFY, &g_nid);
}
static Item *FindItemByTarget(HWND t) {
for (int i = 0; i < MAX_ITEMS; i++) if (g_items[i].used && g_items[i].target == t) return &g_items[i];
return NULL;
}
static BOOL IsOurIconWindow(HWND h) {
for (int i = 0; i < MAX_ITEMS; i++) if (g_items[i].used && g_items[i].iconWnd == h) return TRUE;
return FALSE;
}
static HWND FindDesktopHost(void) {
HWND p = FindWindowW(L"Progman", NULL);
if (p && FindWindowExW(p, NULL, L"SHELLDLL_DefView", NULL)) return p;
HWND w = NULL;
while ((w = FindWindowExW(NULL, w, L"WorkerW", NULL)) != NULL)
if (FindWindowExW(w, NULL, L"SHELLDLL_DefView", NULL)) return w;
return p;
}
static BOOL IsDesktopClass(HWND h) {
WCHAR cls[64];
if (!h || !GetClassNameW(h, cls, 64)) return FALSE;
return !wcscmp(cls, L"Progman") || !wcscmp(cls, L"WorkerW");
}
static BOOL CanIconify(HWND h) {
if (!h || !IsWindow(h) || !IsWindowVisible(h)) return FALSE;
DWORD pid = 0; GetWindowThreadProcessId(h, &pid);
if (pid == GetCurrentProcessId()) return FALSE;
WCHAR cls[64]; GetClassNameW(h, cls, 64);
if (!wcscmp(cls, L"Progman") || !wcscmp(cls, L"WorkerW") || !wcscmp(cls, L"Shell_TrayWnd") ||
!wcscmp(cls, L"Shell_SecondaryTrayWnd") || !wcscmp(cls, L"Windows.UI.Core.CoreWindow"))
return FALSE;
if (GetWindowLongW(h, GWL_EXSTYLE) & WS_EX_TOOLWINDOW) return FALSE;
if (FindItemByTarget(h)) return FALSE;
return TRUE;
}
static HICON GetTargetIcon(HWND h) {
int sz = S(48);
HICON hi = NULL;
DWORD pid = 0; GetWindowThreadProcessId(h, &pid);
HANDLE p = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, pid);
if (p) {
WCHAR path[MAX_PATH]; DWORD n = MAX_PATH;
if (QueryFullProcessImageNameW(p, 0, path, &n)) {
const WCHAR *base = wcsrchr(path, L'\\'); base = base ? base + 1 : path;
if (_wcsicmp(base, L"ApplicationFrameHost.exe") != 0) {
HICON large = NULL;
if (SHDefExtractIconW(path, 0, 0, &large, NULL, MAKELONG(sz, 16)) == S_OK && large)
hi = large;
}
}
CloseHandle(p);
}
if (!hi) {
DWORD_PTR r = 0;
if (SendMessageTimeoutW(h, WM_GETICON, ICON_BIG, 0, SMTO_ABORTIFHUNG, 200, &r) && r) hi = CopyIcon((HICON)r);
if (!hi) { HICON c = (HICON)GetClassLongPtrW(h, GCLP_HICON); if (c) hi = CopyIcon(c); }
if (!hi && SendMessageTimeoutW(h, WM_GETICON, ICON_SMALL2, 0, SMTO_ABORTIFHUNG, 200, &r) && r) hi = CopyIcon((HICON)r);
if (!hi) hi = CopyIcon(LoadIconW(NULL, IDI_APPLICATION));
}
return hi;
}
/* ---------------- rendering ---------------- */
static void DrawContent(HDC dc, Item *it, int W, int H) {
SelectObject(dc, g_font);
SetBkMode(dc, TRANSPARENT);
UINT fmt = DT_CENTER | DT_WORDBREAK | DT_END_ELLIPSIS | DT_EDITCONTROL | DT_NOPREFIX;
WCHAR title[256];
wcscpy(title, it->title[0] ? it->title : L"(untitled)");
RECT tr;
if (g_showIcons) {
int isz = S(48);
int ix = (W - isz) / 2, iy = S(6);
DrawIconEx(dc, ix, iy, it->hIcon, isz, isz, 0, NULL, DI_NORMAL);
SetRect(&tr, S(3), iy + isz + S(4), W - S(3), H - S(3));
} else {
// text only: center the (up to 3 line) label vertically in the tile
RECT box = { S(5), S(4), W - S(5), H - S(4) };
RECT calc = box;
DrawTextW(dc, title, -1, &calc, fmt | DT_CALCRECT);
int th = calc.bottom - calc.top, bh = box.bottom - box.top;
if (th > bh) th = bh;
tr = box;
tr.top = box.top + (bh - th) / 2;
tr.bottom = tr.top + th;
}
RECT sr = tr; OffsetRect(&sr, 1, 1);
SetTextColor(dc, RGB(0, 0, 0));
DrawTextW(dc, title, -1, &sr, fmt);
SetTextColor(dc, RGB(255, 255, 255));
DrawTextW(dc, title, -1, &tr, fmt);
}
static void RenderItem(Item *it) {
int W = ItemW(), H = ItemH();
HDC screen = GetDC(NULL);
BITMAPINFO bi; ZeroMemory(&bi, sizeof(bi));
bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bi.bmiHeader.biWidth = W; bi.bmiHeader.biHeight = -H;
bi.bmiHeader.biPlanes = 1; bi.bmiHeader.biBitCount = 32; bi.bmiHeader.biCompression = BI_RGB;
BYTE *pb = NULL, *pw = NULL, *po = NULL;
HDC db = CreateCompatibleDC(screen), dw = CreateCompatibleDC(screen), dout = CreateCompatibleDC(screen);
HBITMAP bb = CreateDIBSection(screen, &bi, DIB_RGB_COLORS, (void **)&pb, NULL, 0);
HBITMAP bw = CreateDIBSection(screen, &bi, DIB_RGB_COLORS, (void **)&pw, NULL, 0);
HBITMAP bo = CreateDIBSection(screen, &bi, DIB_RGB_COLORS, (void **)&po, NULL, 0);
if (!bb || !bw || !bo) goto done;
HGDIOBJ ob = SelectObject(db, bb), ow = SelectObject(dw, bw), oo = SelectObject(dout, bo);
RECT all = { 0, 0, W, H };
FillRect(db, &all, (HBRUSH)GetStockObject(BLACK_BRUSH));
FillRect(dw, &all, (HBRUSH)GetStockObject(WHITE_BRUSH));
DrawContent(db, it, W, H);
DrawContent(dw, it, W, H);
GdiFlush();
// Recover per-pixel alpha by comparing the render over black and over white.
int hx0 = S(2), hy0 = S(2), hx1 = W - S(2), hy1 = H - S(2);
for (int y = 0; y < H; y++) {
for (int x = 0; x < W; x++) {
int i = (y * W + x) * 4;
int d = ((pw[i] - pb[i]) + (pw[i + 1] - pb[i + 1]) + (pw[i + 2] - pb[i + 2])) / 3;
int a = 255 - d; if (a < 0) a = 0; if (a > 255) a = 255;
int c0 = pb[i], c1 = pb[i + 1], c2 = pb[i + 2];
if (c0 > a) c0 = a; if (c1 > a) c1 = a; if (c2 > a) c2 = a;
if (it->hover && x >= hx0 && x < hx1 && y >= hy0 && y < hy1) {
BOOL edge = (x == hx0 || x == hx1 - 1 || y == hy0 || y == hy1 - 1);
int ha = edge ? 150 : 70; // highlight alpha
int hr = 153, hg = 209, hb = 255; // light blue, like Explorer selection
int inv = 255 - a;
c0 += (hb * ha / 255) * inv / 255;
c1 += (hg * ha / 255) * inv / 255;
c2 += (hr * ha / 255) * inv / 255;
a += ha * inv / 255;
}
if (a < 1) a = 1; // keep the whole tile clickable
po[i] = (BYTE)c0; po[i + 1] = (BYTE)c1; po[i + 2] = (BYTE)c2; po[i + 3] = (BYTE)a;
}
}
{
SIZE sz = { W, H }; POINT src = { 0, 0 };
BLENDFUNCTION bf = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
UpdateLayeredWindow(it->iconWnd, screen, NULL, &sz, dout, &src, 0, &bf, ULW_ALPHA);
}
SelectObject(db, ob); SelectObject(dw, ow); SelectObject(dout, oo);
done:
if (bb) DeleteObject(bb);
if (bw) DeleteObject(bw);
if (bo) DeleteObject(bo);
DeleteDC(db); DeleteDC(dw); DeleteDC(dout);
ReleaseDC(NULL, screen);
}
/* ---------------- placement and z-order ---------------- */
static void ApplyZOrder(HWND h) {
if (g_onTop) SetWindowPos(h, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
else {
SetWindowPos(h, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
SetWindowPos(h, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE); // adjusted in WM_WINDOWPOSCHANGING
}
}
static POINT FindFreeSlot(void) {
RECT wa; SystemParametersInfoW(SPI_GETWORKAREA, 0, &wa, 0);
int W = ItemW(), H = ItemH(), gap = S(4), m = S(10);
int rows = (wa.bottom - wa.top - m) / (H + gap); if (rows < 1) rows = 1;
int cols = (wa.right - wa.left - m) / (W + gap); if (cols < 1) cols = 1;
for (int c = 0; c < cols; c++) {
for (int r = 0; r < rows; r++) {
RECT slot;
slot.left = wa.right - m - (c + 1) * W - c * gap;
slot.top = wa.top + m + r * (H + gap);
slot.right = slot.left + W; slot.bottom = slot.top + H;
BOOL free = TRUE;
for (int i = 0; i < MAX_ITEMS && free; i++) {
if (!g_items[i].used) continue;
RECT ir, x; GetWindowRect(g_items[i].iconWnd, &ir);
if (IntersectRect(&x, &ir, &slot)) free = FALSE;
}
if (free) { POINT p = { slot.left, slot.top }; return p; }
}
}
POINT p = { wa.right - m - W, wa.top + m };
return p;
}
/* ---------------- items ---------------- */
static Item *CreateItem(HWND target, int x, int y, BOOL useXY) {
Item *it = NULL;
for (int i = 0; i < MAX_ITEMS; i++) if (!g_items[i].used) { it = &g_items[i]; break; }
if (!it) return NULL;
ZeroMemory(it, sizeof(*it));
it->target = target;
GetWindowThreadProcessId(target, &it->pid);
GetWindowTextW(target, it->title, 256);
it->hIcon = GetTargetIcon(target);
if (!useXY) { POINT p = FindFreeSlot(); x = p.x; y = p.y; }
it->iconWnd = CreateWindowExW(WS_EX_LAYERED | WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE,
L"DeskIconsItem", it->title, WS_POPUP,
x, y, ItemW(), ItemH(), NULL, NULL, g_inst, it);
if (!it->iconWnd) { if (it->hIcon) DestroyIcon(it->hIcon); return NULL; }
it->used = TRUE;
RenderItem(it);
ShowWindow(it->iconWnd, SW_SHOWNOACTIVATE);
ApplyZOrder(it->iconWnd);
return it;
}
static void RemoveItem(Item *it) {
if (!it->used) return;
it->used = FALSE;
if (it->iconWnd) DestroyWindow(it->iconWnd);
if (it->hIcon) DestroyIcon(it->hIcon);
it->iconWnd = NULL; it->hIcon = NULL;
SaveState();
UpdateTrayTip();
}
static void Iconify(HWND h) {
h = GetAncestor(h, GA_ROOT);
if (!CanIconify(h)) return;
ShowWindow(h, SW_MINIMIZE);
ShowWindow(h, SW_HIDE);
if (IsWindowVisible(h)) {
Balloon(L"DeskIcons", L"That window could not be hidden. It probably belongs to a program running as administrator.");
return;
}
CreateItem(h, 0, 0, FALSE);
SaveState();
UpdateTrayTip();
}
static void RestoreItem(Item *it, BOOL activate) {
if (!it->used) return;
HWND t = it->target;
if (IsWindow(t)) {
if (activate) {
ShowWindow(t, SW_SHOWMINNOACTIVE);
ShowWindow(t, SW_RESTORE);
SetForegroundWindow(t);
} else {
ShowWindow(t, SW_SHOWMINNOACTIVE); // back on the taskbar, still minimized
}
}
RemoveItem(it);
}
static void RestoreAll(BOOL activate) {
for (int i = 0; i < MAX_ITEMS; i++) if (g_items[i].used) RestoreItem(&g_items[i], activate);
}
static void RecoverFromStateFile(void) {
FILE *f = _wfopen(g_stateFile, L"r");
if (!f) return;
unsigned long long h; unsigned long pid; long x, y;
while (fscanf(f, "%llx %lu %ld %ld", &h, &pid, &x, &y) == 4) {
HWND hw = (HWND)(ULONG_PTR)h;
DWORD realPid = 0;
if (!IsWindow(hw)) continue;
GetWindowThreadProcessId(hw, &realPid);
if (realPid != pid || IsWindowVisible(hw) || FindItemByTarget(hw)) continue;
CreateItem(hw, x, y, TRUE);
}
fclose(f);
SaveState();
}
/* ---------------- menus ---------------- */
static void ShowTrayMenu(void) {
HMENU m = CreatePopupMenu();
AppendMenuW(m, MF_STRING | MF_GRAYED, 0, L"DeskIcons");
AppendMenuW(m, MF_SEPARATOR, 0, NULL);
AppendMenuW(m, MF_STRING | (CountItems() ? 0 : MF_GRAYED), IDM_RESTOREALL, L"Restore all windows");
AppendMenuW(m, MF_STRING | (g_showIcons ? MF_CHECKED : 0), IDM_SHOWICONS, L"Show program icons");
AppendMenuW(m, MF_STRING | (g_onTop ? MF_CHECKED : 0), IDM_ONTOP, L"Keep icons on top of windows");
AppendMenuW(m, MF_STRING | (StartupEnabled() ? MF_CHECKED : 0), IDM_STARTUP, L"Start with Windows");
AppendMenuW(m, MF_STRING, IDM_HELP, L"How to use");
AppendMenuW(m, MF_SEPARATOR, 0, NULL);
AppendMenuW(m, MF_STRING, IDM_EXIT, L"Exit (brings windows back)");
POINT p; GetCursorPos(&p);
SetForegroundWindow(g_main);
TrackPopupMenu(m, TPM_RIGHTBUTTON | TPM_BOTTOMALIGN, p.x, p.y, 0, g_main, NULL);
PostMessageW(g_main, WM_NULL, 0, 0);
DestroyMenu(m);
}
static void ShowHelp(void) {
MessageBoxW(NULL,
L"Send a window to the desktop:\n"
L" Hold Shift and click the window's minimize button,\n"
L" or press Ctrl+Alt+I while the window is active.\n\n"
L"The window leaves the taskbar and shows up as an icon on your desktop.\n\n"
L"Drag icons anywhere you like.\n"
L"Double-click an icon to bring its window back.\n"
L"Right-click an icon to restore or close that window.\n\n"
L"Exiting DeskIcons brings back every window it was holding.",
L"How to use DeskIcons", MB_OK | MB_ICONINFORMATION);
}
/* ---------------- window procs ---------------- */
static LRESULT CALLBACK ItemProc(HWND h, UINT msg, WPARAM wp, LPARAM lp) {
Item *it = (Item *)GetWindowLongPtrW(h, GWLP_USERDATA);
switch (msg) {
case WM_NCCREATE: {
CREATESTRUCTW *cs = (CREATESTRUCTW *)lp;
SetWindowLongPtrW(h, GWLP_USERDATA, (LONG_PTR)cs->lpCreateParams);
break;
}
case WM_MOUSEACTIVATE:
return MA_NOACTIVATE;
case WM_WINDOWPOSCHANGING:
if (!g_onTop) {
WINDOWPOS *pos = (WINDOWPOS *)lp;
if (!(pos->flags & SWP_NOZORDER)) {
HWND host = FindDesktopHost();
if (host) {
HWND above = GetWindow(host, GW_HWNDPREV);
if (above == h) pos->flags |= SWP_NOZORDER;
else pos->hwndInsertAfter = above ? above : HWND_TOP;
}
}
}
break;
case WM_LBUTTONDOWN: {
RECT r; GetWindowRect(h, &r);
g_dragOrig.x = r.left; g_dragOrig.y = r.top;
GetCursorPos(&g_dragStart);
g_pressed = TRUE; g_dragging = FALSE;
SetCapture(h);
return 0;
}
case WM_MOUSEMOVE: {
if (it && !it->hover) {
it->hover = TRUE;
TRACKMOUSEEVENT t = { sizeof(t), TME_LEAVE, h, 0 };
TrackMouseEvent(&t);
RenderItem(it);
}
if (g_pressed && GetCapture() == h) {
POINT p; GetCursorPos(&p);
int dx = p.x - g_dragStart.x, dy = p.y - g_dragStart.y;
if (!g_dragging && (abs(dx) > GetSystemMetrics(SM_CXDRAG) || abs(dy) > GetSystemMetrics(SM_CYDRAG)))
g_dragging = TRUE;
if (g_dragging)
SetWindowPos(h, NULL, g_dragOrig.x + dx, g_dragOrig.y + dy, 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
}
return 0;
}
case WM_LBUTTONUP: {
BOOL wasDrag = g_dragging;
g_pressed = FALSE; g_dragging = FALSE;
if (GetCapture() == h) ReleaseCapture();
if (wasDrag) SaveState();
return 0;
}
case WM_CAPTURECHANGED:
g_pressed = FALSE; g_dragging = FALSE;
return 0;
case WM_LBUTTONDBLCLK:
if (it) PostMessageW(g_main, WM_RESTOREIDX, (WPARAM)(it - g_items), 0);
return 0;
case WM_MOUSELEAVE:
if (it && it->hover) { it->hover = FALSE; RenderItem(it); }
return 0;
case WM_RBUTTONUP: {
if (!it) return 0;
HMENU m = CreatePopupMenu();
AppendMenuW(m, MF_STRING | MF_DEFAULT, IDM_I_RESTORE, L"Restore");
AppendMenuW(m, MF_STRING, IDM_I_CLOSE, L"Close window");
POINT p; GetCursorPos(&p);
SetForegroundWindow(g_main);
int cmd = TrackPopupMenu(m, TPM_RIGHTBUTTON | TPM_RETURNCMD, p.x, p.y, 0, g_main, NULL);
PostMessageW(g_main, WM_NULL, 0, 0);
DestroyMenu(m);
if (cmd == IDM_I_RESTORE) PostMessageW(g_main, WM_RESTOREIDX, (WPARAM)(it - g_items), 0);
else if (cmd == IDM_I_CLOSE) PostMessageW(g_main, WM_CLOSEIDX, (WPARAM)(it - g_items), 0);
return 0;
}
}
return DefWindowProcW(h, msg, wp, lp);
}
static void AddTrayIcon(void) {
ZeroMemory(&g_nid, sizeof(g_nid));
g_nid.cbSize = sizeof(g_nid);
g_nid.hWnd = g_main;
g_nid.uID = 1;
g_nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
g_nid.uCallbackMessage = WM_TRAY;
g_nid.hIcon = (HICON)LoadImageW(g_inst, MAKEINTRESOURCEW(1), IMAGE_ICON,
GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), 0);
wcscpy(g_nid.szTip, L"DeskIcons");
Shell_NotifyIconW(NIM_ADD, &g_nid);
UpdateTrayTip();
}
static LRESULT CALLBACK MainProc(HWND h, UINT msg, WPARAM wp, LPARAM lp) {
if (msg == g_taskbarCreated && g_taskbarCreated) { AddTrayIcon(); return 0; }
switch (msg) {
case WM_TRAY:
if (LOWORD(lp) == WM_RBUTTONUP || LOWORD(lp) == WM_LBUTTONUP) ShowTrayMenu();
return 0;
case WM_HOTKEY:
if (wp == HOTKEY_ID) Iconify(GetForegroundWindow());
return 0;
case WM_ICONIFY:
Iconify((HWND)wp);
return 0;
case WM_RESTOREIDX:
if (wp < MAX_ITEMS) RestoreItem(&g_items[wp], TRUE);
return 0;
case WM_CLOSEIDX:
if (wp < MAX_ITEMS && g_items[wp].used) {
HWND t = g_items[wp].target;
RestoreItem(&g_items[wp], TRUE);
if (IsWindow(t)) PostMessageW(t, WM_SYSCOMMAND, SC_CLOSE, 0);
}
return 0;
case WM_TIMER:
if (wp == TIMER_CHECK) {
for (int i = 0; i < MAX_ITEMS; i++) {
Item *it = &g_items[i];
if (!it->used) continue;
if (!IsWindow(it->target) || IsWindowVisible(it->target)) { RemoveItem(it); continue; }
WCHAR t[256]; GetWindowTextW(it->target, t, 256);
if (wcscmp(t, it->title)) { wcscpy(it->title, t); RenderItem(it); }
if (IsIconic(it->iconWnd) || !IsWindowVisible(it->iconWnd)) ShowWindow(it->iconWnd, SW_SHOWNOACTIVATE);
}
// When the desktop gets focus (Win+D, clicking the wallpaper), make sure icons sit above it.
HWND fg = GetForegroundWindow();
if (fg != g_lastFg) {
g_lastFg = fg;
if (IsDesktopClass(fg))
for (int i = 0; i < MAX_ITEMS; i++) if (g_items[i].used) ApplyZOrder(g_items[i].iconWnd);
}
}
return 0;
case WM_COMMAND:
switch (LOWORD(wp)) {
case IDM_RESTOREALL: RestoreAll(FALSE); break;
case IDM_ONTOP:
g_onTop = !g_onTop; RegSetDword(L"OnTop", g_onTop);
for (int i = 0; i < MAX_ITEMS; i++) if (g_items[i].used) ApplyZOrder(g_items[i].iconWnd);
break;
case IDM_SHOWICONS:
g_showIcons = !g_showIcons; RegSetDword(L"ShowIcons", g_showIcons);
for (int i = 0; i < MAX_ITEMS; i++) {
if (!g_items[i].used) continue;
SetWindowPos(g_items[i].iconWnd, NULL, 0, 0, ItemW(), ItemH(), SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
RenderItem(&g_items[i]);
}
SaveState();
break;
case IDM_STARTUP: SetStartup(!StartupEnabled()); break;
case IDM_HELP: ShowHelp(); break;
case IDM_EXIT: DestroyWindow(h); break;
}
return 0;
case WM_QUERYENDSESSION:
RestoreAll(FALSE);
return TRUE;
case WM_DESTROY:
RestoreAll(FALSE);
DeleteFileW(g_stateFile);
KillTimer(h, TIMER_CHECK);
if (g_hotkeyOk) UnregisterHotKey(h, HOTKEY_ID);
if (g_mouseHook) UnhookWindowsHookEx(g_mouseHook);
Shell_NotifyIconW(NIM_DELETE, &g_nid);
PostQuitMessage(0);
return 0;
}
return DefWindowProcW(h, msg, wp, lp);
}
/* ---------------- shift+click on minimize button ---------------- */
static LRESULT CALLBACK MouseLL(int code, WPARAM wp, LPARAM lp) {
if (code == HC_ACTION) {
MSLLHOOKSTRUCT *m = (MSLLHOOKSTRUCT *)lp;
if (wp == WM_LBUTTONDOWN && (GetAsyncKeyState(VK_SHIFT) & 0x8000) && !(m->flags & LLMHF_INJECTED)) {
HWND hit = WindowFromPoint(m->pt);
if (hit) {
HWND root = GetAncestor(hit, GA_ROOT);
LPARAM pt = MAKELPARAM((WORD)(SHORT)m->pt.x, (WORD)(SHORT)m->pt.y);
DWORD_PTR r = 0;
BOOL isMin = FALSE;
if (SendMessageTimeoutW(hit, WM_NCHITTEST, 0, pt, SMTO_ABORTIFHUNG, 150, &r) && r == HTMINBUTTON) isMin = TRUE;
else if (root && root != hit &&
SendMessageTimeoutW(root, WM_NCHITTEST, 0, pt, SMTO_ABORTIFHUNG, 150, &r) && r == HTMINBUTTON) isMin = TRUE;
if (isMin && root && !IsOurIconWindow(root)) {
g_swallowUp = TRUE;
PostMessageW(g_main, WM_ICONIFY, (WPARAM)root, 0);
return 1;
}
}
} else if (wp == WM_LBUTTONUP && g_swallowUp) {
g_swallowUp = FALSE;
return 1;
}
}
return CallNextHookEx(g_mouseHook, code, wp, lp);
}
/* ---------------- entry ---------------- */
typedef BOOL (WINAPI *SetDpiCtxFn)(HANDLE);
int WINAPI wWinMain(HINSTANCE inst, HINSTANCE prev, PWSTR cmd, int show) {
(void)prev; (void)cmd; (void)show;
g_inst = inst;
HANDLE mutex = CreateMutexW(NULL, TRUE, L"DeskIcons_SingleInstance_Mutex");
if (GetLastError() == ERROR_ALREADY_EXISTS) {
MessageBoxW(NULL, L"DeskIcons is already running. Look for its icon in the system tray.", APP_NAME, MB_OK | MB_ICONINFORMATION);
return 0;
}
SetDpiCtxFn setCtx = (SetDpiCtxFn)GetProcAddress(GetModuleHandleW(L"user32.dll"), "SetProcessDpiAwarenessContext");
if (!setCtx || !setCtx((HANDLE)-4)) SetProcessDPIAware();
HDC sdc = GetDC(NULL); g_dpi = GetDeviceCaps(sdc, LOGPIXELSY); ReleaseDC(NULL, sdc);
if (g_dpi < 96) g_dpi = 96;
g_font = CreateFontW(-MulDiv(9, g_dpi, 72), 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, DEFAULT_PITCH, L"Segoe UI");
WCHAR dir[MAX_PATH];
if (SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_LOCAL_APPDATA, NULL, 0, dir))) {
wcscat(dir, L"\\DeskIcons");
CreateDirectoryW(dir, NULL);
swprintf(g_stateFile, MAX_PATH, L"%ls\\state.txt", dir);
} else {
GetTempPathW(MAX_PATH, dir);
swprintf(g_stateFile, MAX_PATH, L"%lsDeskIcons_state.txt", dir);
}
g_onTop = RegGetDword(L"OnTop", 0) != 0;
g_showIcons = RegGetDword(L"ShowIcons", 0) != 0;
WNDCLASSEXW wc = { sizeof(wc) };
wc.lpfnWndProc = MainProc; wc.hInstance = inst; wc.lpszClassName = L"DeskIconsMain";
wc.hIcon = LoadIconW(inst, MAKEINTRESOURCEW(1));
RegisterClassExW(&wc);
WNDCLASSEXW ic = { sizeof(ic) };
ic.style = CS_DBLCLKS; ic.lpfnWndProc = ItemProc; ic.hInstance = inst;
ic.hCursor = LoadCursorW(NULL, IDC_ARROW); ic.lpszClassName = L"DeskIconsItem";
RegisterClassExW(&ic);
g_main = CreateWindowExW(0, L"DeskIconsMain", APP_NAME, 0, 0, 0, 0, 0, NULL, NULL, inst, NULL);
g_taskbarCreated = RegisterWindowMessageW(L"TaskbarCreated");
AddTrayIcon();
g_hotkeyOk = RegisterHotKey(g_main, HOTKEY_ID, MOD_CONTROL | MOD_ALT | MOD_NOREPEAT, 'I');
g_mouseHook = SetWindowsHookExW(WH_MOUSE_LL, MouseLL, inst, 0);
SetTimer(g_main, TIMER_CHECK, 1000, NULL);
RecoverFromStateFile();
UpdateTrayTip();
if (!RegGetDword(L"Welcomed", 0)) {
RegSetDword(L"Welcomed", 1);
Balloon(L"DeskIcons is running",
L"Shift+click any minimize button (or press Ctrl+Alt+I) to send that window to the desktop as an icon.");
} else if (!g_hotkeyOk) {
Balloon(L"DeskIcons", L"Ctrl+Alt+I is already taken by another program. Shift+click on minimize buttons still works.");
}
MSG m;
while (GetMessageW(&m, NULL, 0, 0) > 0) {
TranslateMessage(&m);
DispatchMessageW(&m);
}
if (g_font) DeleteObject(g_font);
if (mutex) { ReleaseMutex(mutex); CloseHandle(mutex); }
return 0;
}
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