A simple, small calculator placed discreetly near the Windows Taskbar or anywhere on the screen
feat: remember window visibility across launches (first run: visible)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Marco Maroni
(Jul 15, 2026, 11:24 AM +0200)
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App.cpp
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App.cpp
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#include "TrayIcon.h"
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#include "StartupManager.h"
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#include "CalculatorWindow.h"
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#include "Settings.h"
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#include "resource.h"
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enum { IDM_SHOWHIDE = 1, IDM_STARTUP = 2, IDM_ABOUT = 3, IDM_EXIT = 4 };
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g_calc = new CCalculatorWindow();
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g_calc->CreateStandalone();
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if (Settings::LoadVisible(true)) // first run (no saved value): visible
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g_calc->ToggleVisible();
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MSG m;
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while (GetMessage(&m, nullptr, 0, 0)) {
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CalculatorWindow.cpp
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CalculatorWindow.cpp
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::SetFocus(m_hwndEdit);
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m_shown = true;
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}
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Settings::SaveVisible(m_shown);
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}
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POINTL CCalculatorWindow::CalcMinimalSize() const
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// Hide to tray instead of destroying.
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ShowWindow(SW_HIDE);
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m_shown = false;
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Settings::SaveVisible(false);
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return 0;
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}
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