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Backends: GLFW: cancel out errors emitted by glfwGetKeyName() when a name is missing. (#5908)

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This commit is contained in:
ocornut 2022-11-22 18:08:25 +01:00
parent 5bb2874940
commit 16476f99fd
2 changed files with 8 additions and 1 deletions
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8
backends/imgui_impl_glfw.cpp
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@ -16,6 +16,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2022-11-22: Perform a dummy glfwGetError() read to cancel missing names with glfwGetKeyName(). (#5908)
// 2022-10-18: Perform a dummy glfwGetError() read to cancel missing mouse cursors errors. Using GLFW_VERSION_COMBINED directly. (#5785)
// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
// 2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
@ -305,7 +306,12 @@ static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
// This won't cover edge cases but this is at least going to cover common cases.
if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_EQUAL)
return key;
GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr);
const char* key_name = glfwGetKeyName(key, scancode);
glfwSetErrorCallback(prev_error_callback);
#if (GLFW_VERSION_COMBINED >= 3300) // Eat errors (see #5908)
(void)glfwGetError(NULL);
#endif
if (key_name && key_name[0] != 0 && key_name[1] == 0)
{
const char char_names[] = "`-=[]\\,;\'./";
@ -495,10 +501,10 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
#endif
glfwSetErrorCallback(prev_error_callback);
#if (GLFW_VERSION_COMBINED >= 3300) // Eat errors (see #5785)
(void)glfwGetError(NULL);
#endif
glfwSetErrorCallback(prev_error_callback);
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
if (install_callbacks)

1
docs/CHANGELOG.txt
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@ -38,6 +38,7 @@ HOW TO UPDATE?
- Inputs: fixed moving a window or drag and dropping from preventing input-owner-unaware code
from accessing keys. (#5888, #4921, #456)
- Inputs: fixed moving a window or drag and dropping from capturing mods. (#5888, #4921, #456)
- Backends: GLFW: cancel out errors emitted by glfwGetKeyName() when a name is missing. (#5908)
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