A simple, small calculator placed discreetly near the Windows Taskbar or anywhere on the screen
fix: size calculator window client area for caption+borders; edit fills client
The window was sized to the text extent only, so the caption consumed the
whole height and the EDIT was invisible. Use AdjustWindowRectEx on the desired
client size (min 160x28), fill the client with the EDIT, shorten the title.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Marco Maroni
(Jul 14, 2026, 3:43 PM +0200)
8a659fe8
a0e2d6fd
+9
-5
+9
-5
CalculatorWindow.cpp
+9
-5
CalculatorWindow.cpp
···
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{
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RECT rc = { 0, 0, 220, 48 };
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// Top-level popup, always-on-top, tool window (no taskbar/Alt-Tab button).
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HWND hwnd = __super::Create(NULL, rc, L"Taskbar Calculator",
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HWND hwnd = __super::Create(NULL, rc, L"Calculator",
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WS_POPUP | WS_CAPTION | WS_SYSMENU,
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WS_EX_TOPMOST | WS_EX_TOOLWINDOW);
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if (!hwnd) return FALSE;
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m_hwndEdit = CreateWindowEx(WS_EX_CLIENTEDGE, TEXT("EDIT"), TEXT("0"),
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WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | ES_RIGHT | ES_NUMBER,
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WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | ES_RIGHT,
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0, 0, 0, 0, m_hWnd, NULL, _AtlBaseModule.GetModuleInstance(), 0);
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SetWindowFont(m_hwndEdit, m_ptrVisualStyle->GetFont(), TRUE);
···
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if (wpOrigEditProc == 0) return FALSE;
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::SetWindowLongPtr(m_hwndEdit, GWLP_USERDATA, (LONG_PTR)this);
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// Size so the CLIENT area fits the display, accounting for caption + borders.
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POINTL ideal = CalcIdealSize();
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SetWindowPos(NULL, 0, 0, ideal.x + 24, ideal.y + 16, SWP_NOMOVE | SWP_NOZORDER);
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LONG clientW = ideal.x + 24; if (clientW < 160) clientW = 160;
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LONG clientH = ideal.y + 14; if (clientH < 28) clientH = 28;
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RECT r = { 0, 0, clientW, clientH };
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AdjustWindowRectEx(&r, WS_POPUP | WS_CAPTION | WS_SYSMENU, FALSE, WS_EX_TOOLWINDOW);
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SetWindowPos(NULL, 0, 0, r.right - r.left, r.bottom - r.top, SWP_NOMOVE | SWP_NOZORDER);
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PlaceInitial();
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return TRUE;
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}
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// const UINT defaultHeight = 22;
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//#endif
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-
UINT defaultHeight = (rc.bottom - rc.top) / 2;
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::SetWindowPos(m_hwndEdit, 0, rc.left, ((rc.bottom - rc.top - defaultHeight) / 2), rc.right, defaultHeight, SWP_SHOWWINDOW);
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::SetWindowPos(m_hwndEdit, NULL, 0, 0, rc.right - rc.left, rc.bottom - rc.top, SWP_SHOWWINDOW | SWP_NOZORDER);
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return 0;
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}