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Backends: Win32: Synthesize key-down event on key-up for VK_SNAPSHOT / ImGuiKey_PrintScreen as Windows doesn't emit it. (#6859)

This commit is contained in:
ocornut 2023-09-25 10:58:29 +02:00
parent d4869207e3
commit 12ee2dd789
2 changed files with 9 additions and 2 deletions

View File

@ -39,6 +39,7 @@ typedef DWORD (WINAPI *PFN_XInputGetState)(DWORD, XINPUT_STATE*);
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2023-09-25: Inputs: Synthesize key-down event on key-up for VK_SNAPSHOT / ImGuiKey_PrintScreen as Windows doesn't emit it (same behavior as GLFW/SDL).
// 2023-09-07: Inputs: Added support for keyboard codepage conversion for when application is compiled in MBCS mode and using a non-Unicode window.
// 2023-04-19: Added ImGui_ImplWin32_InitForOpenGL() to facilitate combining raw Win32/Winapi with OpenGL. (#3218)
// 2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen/ImGuiMouseSource_Pen. (#2702)
@ -656,10 +657,14 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
int vk = (int)wParam;
if ((wParam == VK_RETURN) && (HIWORD(lParam) & KF_EXTENDED))
vk = IM_VK_KEYPAD_ENTER;
// Submit key event
const ImGuiKey key = ImGui_ImplWin32_VirtualKeyToImGuiKey(vk);
const int scancode = (int)LOBYTE(HIWORD(lParam));
// Special behavior for VK_SNAPSHOT / ImGuiKey_PrintScreen as Windows doesn't emit the key down event.
if (key == ImGuiKey_PrintScreen && !is_key_down)
ImGui_ImplWin32_AddKeyEvent(key, true, vk, scancode);
// Submit key event
if (key != ImGuiKey_None)
ImGui_ImplWin32_AddKeyEvent(key, is_key_down, vk, scancode);

View File

@ -100,6 +100,8 @@ Other changes:
- Backends: GLFW: Clear emscripten's MouseWheel callback before shutdown. (#6790, #6096, #4019) [@halx99]
- Backends: Win32: Added support for keyboard codepage conversion for when application
is compiled in MBCS mode and using a non-Unicode window. (#6785, #6782, #5725, #5961) [@sneakyevil]
- Backends: Win32: Synthesize key-down event on key-up for VK_SNAPSHOT / ImGuiKey_PrintScreen as Windows
doesn't emit it (same behavior as GLFW/SDL). (#6859) [@thedmd, @SuperWangKai]
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