NoFlashWindow v1.0 (#426)

mods/no-flash-window.wh.cpp

@@ -0,0 +1,115 @@
+// ==WindhawkMod==
+// @id              no-flash-window
+// @name            NoFlashWindow
+// @description     Prevent programs from flashing their windows on the taskbar
+// @version         1.0
+// @author          m417z
+// @github          https://github.com/m417z
+// @twitter         https://twitter.com/m417z
+// @homepage        https://m417z.com/
+// @include         *
+// ==/WindhawkMod==
+
+// For bug reports and feature requests, please open an issue here:
+// https://github.com/ramensoftware/windhawk-mods/issues
+//
+// For pull requests, development takes place here:
+// https://github.com/m417z/my-windhawk-mods
+
+// ==WindhawkModReadme==
+/*
+# NoFlashWindow
+
+Prevent programs from flashing their windows on the taskbar.
+
+Inspired by [NoFlashWindow](https://github.com/mrexodia/NoFlashWindow) by Duncan
+Ogilvie.
+
+**Note**: Windows 11 seems to have [a native option for
+this](https://www.elevenforum.com/t/enable-or-disable-show-flashing-on-taskbar-apps-in-windows-11.9968/).
+
+![Screenshot](https://i.imgur.com/nVmyZrM.png)
+*/
+// ==/WindhawkModReadme==
+
+// ==WindhawkModSettings==
+/*
+- mode: prevent
+  $name: Mode
+  $options:
+  - prevent: Prevent flashing
+  - limitToOne: Limit flashing to one time
+*/
+// ==/WindhawkModSettings==
+
+enum class Mode {
+    prevent,
+    limitToOne,
+};
+
+struct {
+    Mode mode;
+} g_settings;
+
+using FlashWindow_t = decltype(&FlashWindow);
+FlashWindow_t FlashWindow_Original;
+BOOL WINAPI FlashWindow_Hook(HWND hWnd, WINBOOL bInvert) {
+    Wh_Log(L">");
+
+    if (g_settings.mode == Mode::prevent) {
+        return TRUE;
+    }
+
+    return FlashWindow_Original(hWnd, bInvert);
+}
+
+using FlashWindowEx_t = decltype(&FlashWindowEx);
+FlashWindowEx_t FlashWindowEx_Original;
+BOOL WINAPI FlashWindowEx_Hook(PFLASHWINFO pfwi) {
+    Wh_Log(L">");
+
+    if (g_settings.mode == Mode::prevent) {
+        return TRUE;
+    }
+
+    FLASHWINFO newFwi = *pfwi;
+    newFwi.dwFlags &= ~(FLASHW_TIMER | FLASHW_TIMERNOFG);
+    if (newFwi.uCount > 1) {
+        newFwi.uCount = 1;
+    }
+
+    return FlashWindowEx_Original(&newFwi);
+}
+
+void LoadSettings() {
+    PCWSTR mode = Wh_GetStringSetting(L"mode");
+    g_settings.mode = Mode::prevent;
+    if (wcscmp(mode, L"limitToOne") == 0) {
+        g_settings.mode = Mode::limitToOne;
+    }
+    Wh_FreeStringSetting(mode);
+}
+
+BOOL Wh_ModInit() {
+    Wh_Log(L">");
+
+    LoadSettings();
+
+    Wh_SetFunctionHook((void*)FlashWindow, (void*)FlashWindow_Hook,
+                       (void**)&FlashWindow_Original);
+
+    Wh_SetFunctionHook((void*)FlashWindowEx, (void*)FlashWindowEx_Hook,
+                       (void**)&FlashWindowEx_Original);
+
+    return TRUE;
+}
+
+void Wh_ModUninit() {
+    Wh_Log(L">");
+}
+
+void Wh_ModSettingsChanged() {
+    Wh_Log(L">");
+
+    LoadSettings();
+}