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https://github.com/glfw/glfw.git
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Win32: Add separate window class for helper window
The current window procedure needs to deal with messages both for user created windows and the hidden helper window. This commit separates out the device message handling of the helper window, allowing both window procedures to be less complicated.
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@ -179,6 +179,7 @@ information on what to include when reporting a bug.
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- [Win32] Added the `GLFW_WIN32_KEYBOARD_MENU` window hint for enabling access
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- [Win32] Added the `GLFW_WIN32_KEYBOARD_MENU` window hint for enabling access
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to the window menu
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to the window menu
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- [Win32] Added a version info resource to the GLFW DLL
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- [Win32] Added a version info resource to the GLFW DLL
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- [Win32] Made hidden helper window use its own window class
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- [Win32] Disabled framebuffer transparency on Windows 7 when DWM windows are
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- [Win32] Disabled framebuffer transparency on Windows 7 when DWM windows are
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opaque (#1512)
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opaque (#1512)
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- [Win32] Bugfix: `GLFW_INCLUDE_VULKAN` plus `VK_USE_PLATFORM_WIN32_KHR` caused
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- [Win32] Bugfix: `GLFW_INCLUDE_VULKAN` plus `VK_USE_PLATFORM_WIN32_KHR` caused
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@ -331,15 +331,63 @@ static void createKeyTables(void)
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}
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}
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}
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}
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// Window procedure for the hidden helper window
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//
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static LRESULT CALLBACK helperWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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switch (uMsg)
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{
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case WM_DISPLAYCHANGE:
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_glfwPollMonitorsWin32();
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break;
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case WM_DEVICECHANGE:
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{
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if (!_glfw.joysticksInitialized)
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break;
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if (wParam == DBT_DEVICEARRIVAL)
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{
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DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
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if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
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_glfwDetectJoystickConnectionWin32();
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}
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else if (wParam == DBT_DEVICEREMOVECOMPLETE)
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{
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DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
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if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
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_glfwDetectJoystickDisconnectionWin32();
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}
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break;
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}
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}
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return DefWindowProcW(hWnd, uMsg, wParam, lParam);
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}
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// Creates a dummy window for behind-the-scenes work
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// Creates a dummy window for behind-the-scenes work
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//
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//
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static GLFWbool createHelperWindow(void)
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static GLFWbool createHelperWindow(void)
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{
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{
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MSG msg;
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MSG msg;
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WNDCLASSEXW wc = { sizeof(wc) };
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wc.style = CS_OWNDC;
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wc.lpfnWndProc = (WNDPROC) helperWindowProc;
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wc.hInstance = _glfw.win32.instance;
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wc.lpszClassName = L"GLFW3 Helper";
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if (!RegisterClassExW(&wc))
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{
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_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
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"WIn32: Failed to register helper window class");
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return GLFW_FALSE;
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}
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_glfw.win32.helperWindowHandle =
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_glfw.win32.helperWindowHandle =
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CreateWindowExW(WS_EX_OVERLAPPEDWINDOW,
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CreateWindowExW(WS_EX_OVERLAPPEDWINDOW,
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_GLFW_WNDCLASSNAME,
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L"GLFW3 Helper",
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L"GLFW message window",
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L"GLFW message window",
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WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
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WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
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0, 0, 1, 1,
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0, 0, 1, 1,
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@ -663,7 +711,10 @@ void _glfwTerminateWin32(void)
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UnregisterDeviceNotification(_glfw.win32.deviceNotificationHandle);
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UnregisterDeviceNotification(_glfw.win32.deviceNotificationHandle);
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if (_glfw.win32.helperWindowHandle)
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if (_glfw.win32.helperWindowHandle)
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{
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DestroyWindow(_glfw.win32.helperWindowHandle);
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DestroyWindow(_glfw.win32.helperWindowHandle);
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UnregisterClassW(L"GLFW3 Helper", _glfw.win32.instance);
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}
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_glfwUnregisterWindowClassWin32();
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_glfwUnregisterWindowClassWin32();
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@ -533,19 +533,14 @@ static void maximizeWindowManually(_GLFWwindow* window)
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SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED);
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SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED);
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}
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}
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// Window callback function (handles window messages)
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// Window procedure for user-created windows
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//
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//
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static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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{
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_GLFWwindow* window = GetPropW(hWnd, L"GLFW");
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_GLFWwindow* window = GetPropW(hWnd, L"GLFW");
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if (!window)
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if (!window)
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{
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{
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// This is the message handling for the hidden helper window
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if (uMsg == WM_NCCREATE)
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// and for a regular window during its initial creation
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switch (uMsg)
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{
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case WM_NCCREATE:
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{
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{
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if (_glfwIsWindows10Version1607OrGreaterWin32())
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if (_glfwIsWindows10Version1607OrGreaterWin32())
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{
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{
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@ -559,34 +554,6 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM l
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if (wndconfig && wndconfig->scaleToMonitor)
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if (wndconfig && wndconfig->scaleToMonitor)
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EnableNonClientDpiScaling(hWnd);
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EnableNonClientDpiScaling(hWnd);
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}
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}
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break;
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}
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case WM_DISPLAYCHANGE:
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_glfwPollMonitorsWin32();
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break;
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case WM_DEVICECHANGE:
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{
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if (!_glfw.joysticksInitialized)
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break;
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if (wParam == DBT_DEVICEARRIVAL)
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{
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DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
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if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
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_glfwDetectJoystickConnectionWin32();
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}
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else if (wParam == DBT_DEVICEREMOVECOMPLETE)
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{
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DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
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if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
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_glfwDetectJoystickDisconnectionWin32();
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}
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break;
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}
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}
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}
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return DefWindowProcW(hWnd, uMsg, wParam, lParam);
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return DefWindowProcW(hWnd, uMsg, wParam, lParam);
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