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Win32: Fix non-BMP Unicode codepoint input
Supplementary Plane codepoints from WM_CHAR and WM_SYSCHAR messages were reported as UTF-16 surrogate pairs. Related to #1635.
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@ -152,6 +152,7 @@ information on what to include when reporting a bug.
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invalid pointer
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- [Win32] Bugfix: Some synthetic key events were reported as `GLFW_KEY_UNKNOWN`
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(#1623)
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- [Win32] Bugfix: Non-BMP Unicode codepoint input was reported as UTF-16
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- [Cocoa] Added support for `VK_EXT_metal_surface` (#1619)
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- [Cocoa] Added locating the Vulkan loader at runtime in an application bundle
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- [Cocoa] Moved main menu creation to GLFW initialization time (#1649)
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@ -311,6 +311,8 @@ typedef struct _GLFWwindowWin32
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// The last received cursor position, regardless of source
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int lastCursorPosX, lastCursorPosY;
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// The last recevied high surrogate when decoding pairs of UTF-16 messages
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WCHAR highSurrogate;
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} _GLFWwindowWin32;
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@ -646,11 +646,38 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
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case WM_CHAR:
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case WM_SYSCHAR:
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{
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if (wParam >= 0xd800 && wParam <= 0xdbff)
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window->win32.highSurrogate = (WCHAR) wParam;
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else
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{
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unsigned int codepoint = 0;
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if (wParam >= 0xdc00 && wParam <= 0xdfff)
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{
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if (window->win32.highSurrogate)
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{
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codepoint += (window->win32.highSurrogate - 0xd800) << 10;
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codepoint += (WCHAR) wParam - 0xdc00;
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codepoint += 0x10000;
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}
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}
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else
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codepoint = (WCHAR) wParam;
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window->win32.highSurrogate = 0;
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_glfwInputChar(window, codepoint, getKeyMods(), uMsg != WM_SYSCHAR);
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}
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if (uMsg == WM_SYSCHAR && window->win32.keymenu)
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break;
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return 0;
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}
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case WM_UNICHAR:
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{
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const GLFWbool plain = (uMsg != WM_SYSCHAR);
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if (uMsg == WM_UNICHAR && wParam == UNICODE_NOCHAR)
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if (wParam == UNICODE_NOCHAR)
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{
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// WM_UNICHAR is not sent by Windows, but is sent by some
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// third-party input method engine
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@ -658,11 +685,7 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
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return TRUE;
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}
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_glfwInputChar(window, (unsigned int) wParam, getKeyMods(), plain);
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if (uMsg == WM_SYSCHAR && window->win32.keymenu)
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break;
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_glfwInputChar(window, (unsigned int) wParam, getKeyMods(), GLFW_TRUE);
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return 0;
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}
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