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Added character with modifiers callback.
The undefined behaviour changed with #40 has been reverted, making the character-only callback again behave like a system text field. This behavior has now been documentated. Fixes #203. Fixes #305.
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@ -56,6 +56,7 @@ GLFW bundles a number of dependencies in the `deps/` directory.
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- Added `glfwPostEmptyEvent` for allowing secondary threads to cause
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`glfwWaitEvents` to return
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- Added `empty` test program for verifying posting of empty events
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- Added `glfwSetCharModsCallback` for receiving character events with modifiers
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- Added `glfwGetWindowFrameSize` for retrieving the size of the frame around
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the client area of a window
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- Added `GLFW_AUTO_ICONIFY` for controlling whether full screen windows
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@ -47,6 +47,14 @@ GLFW not supports floating windows, also called topmost or always on top, for
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easier debugging, with the `GLFW_FLOATING` window hint.
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@subsection news_31_charmods Character with modifiers callback
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GLFW now provides a callback for character events with modifier key bits.
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Unlike the regular character callback, this will report character events that
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will not result in a character being input, for example if the Control key is
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held down.
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@subsection news_31_egl Stable EGL support
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The support for EGL is now stable, successfully running on PandaBoards, Mesa,
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@ -788,6 +788,24 @@ typedef void (* GLFWkeyfun)(GLFWwindow*,int,int,int,int);
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*/
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typedef void (* GLFWcharfun)(GLFWwindow*,unsigned int);
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/*! @brief The function signature for Unicode character with modifiers
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* callbacks.
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*
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* This is the function signature for Unicode character with modifiers callback
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* functions. It is called for each input character, regardless of what
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* modifier keys are held down.
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*
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* @param[in] window The window that received the event.
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* @param[in] codepoint The Unicode code point of the character.
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* @param[in] mods Bit field describing which [modifier keys](@ref mods) were
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* held down.
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*
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* @sa glfwSetCharModsCallback
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*
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* @ingroup input
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*/
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typedef void (* GLFWcharmodsfun)(GLFWwindow*,unsigned int,int);
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/*! @brief The function signature for file drop callbacks.
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*
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* This is the function signature for file drop callbacks.
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@ -2151,9 +2169,19 @@ GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* window, GLFWkeyfun cbfun);
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* This function sets the character callback of the specific window, which is
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* called when a Unicode character is input.
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*
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* The character callback is intended for text input. If you want to know
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* whether a specific key was pressed or released, use the
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* [key callback](@ref glfwSetKeyCallback) instead.
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* The character callback is intended for Unicode text input. As it deals with
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* characters, it is keyboard layout dependent, whereas the
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* [key callback](@ref glfwSetKeyCallback) is not. Characters do not map 1:1
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* to physical keys, as a key may produce zero, one or more characters. If you
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* want to know whether a specific physical key was pressed or released, see
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* the key callback instead.
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*
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* The character callback behaves as system text input normally does and will
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* not be called if modifier keys are held down that would prevent normal text
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* input on that platform, for example a Super (Command) key on OS X or Alt key
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* on Windows. There is a
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* [character with modifiers callback](@ref glfwSetCharModsCallback) that
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* receives these events.
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*
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* @param[in] window The window whose callback to set.
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* @param[in] cbfun The new callback, or `NULL` to remove the currently set
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@ -2167,6 +2195,33 @@ GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* window, GLFWkeyfun cbfun);
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*/
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GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* window, GLFWcharfun cbfun);
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/*! @brief Sets the Unicode character with modifiers callback.
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*
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* This function sets the character with modifiers callback of the specific
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* window, which is called when a Unicode character is input regardless of what
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* modifier keys are used.
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*
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* The character with modifiers callback is intended for implementing custom
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* Unicode character input. For regular Unicode text input, see the
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* [character callback](@ref glfwSetCharCallback). Like the character
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* callback, the character with modifiers callback deals with characters and is
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* keyboard layout dependent. Characters do not map 1:1 to physical keys, as
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* a key may produce zero, one or more characters. If you want to know whether
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* a specific physical key was pressed or released, see the
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* [key callback](@ref glfwSetKeyCallback) instead.
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*
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* @param[in] window The window whose callback to set.
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* @param[in] cbfun The new callback, or `NULL` to remove the currently set
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* callback.
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* @return The previously set callback, or `NULL` if no callback was set or an
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* error occurred.
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*
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* @note This function may only be called from the main thread.
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*
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* @ingroup input
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*/
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GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* window, GLFWcharmodsfun cbfun);
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/*! @brief Sets the mouse button callback.
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*
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* This function sets the mouse button callback of the specified window, which
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@ -605,13 +605,15 @@ static int translateKey(unsigned int key)
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{
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const int key = translateKey([event keyCode]);
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const int mods = translateFlags([event modifierFlags]);
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_glfwInputKey(window, key, [event keyCode], GLFW_PRESS, mods);
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NSString* characters = [event characters];
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NSUInteger i, length = [characters length];
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const int plain = !(mods & GLFW_MOD_SUPER);
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for (i = 0; i < length; i++)
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_glfwInputChar(window, [characters characterAtIndex:i]);
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_glfwInputChar(window, [characters characterAtIndex:i], mods, plain);
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}
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- (void)flagsChanged:(NSEvent *)event
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16
src/input.c
16
src/input.c
@ -153,13 +153,19 @@ void _glfwInputKey(_GLFWwindow* window, int key, int scancode, int action, int m
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window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods);
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}
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void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint)
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void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint, int mods, int plain)
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{
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if (codepoint < 32 || (codepoint > 126 && codepoint < 160))
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return;
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if (window->callbacks.charmods)
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window->callbacks.charmods((GLFWwindow*) window, codepoint, mods);
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if (plain)
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{
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if (window->callbacks.character)
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window->callbacks.character((GLFWwindow*) window, codepoint);
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}
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}
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void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset)
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@ -439,6 +445,14 @@ GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* handle, GLFWcharfun cbfun)
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return cbfun;
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}
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GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* handle, GLFWcharmodsfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.charmods, cbfun);
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return cbfun;
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}
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GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* handle,
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GLFWmousebuttonfun cbfun)
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{
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@ -262,6 +262,7 @@ struct _GLFWwindow
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GLFWscrollfun scroll;
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GLFWkeyfun key;
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GLFWcharfun character;
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GLFWcharmodsfun charmods;
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GLFWdropfun drop;
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} callbacks;
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@ -700,9 +701,12 @@ void _glfwInputKey(_GLFWwindow* window, int key, int scancode, int action, int m
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/*! @brief Notifies shared code of a Unicode character input event.
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* @param[in] window The window that received the event.
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* @param[in] codepoint The Unicode code point of the input character.
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* @param[in] mods Bit field describing which modifier keys were held down.
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* @param[in] plain `GL_TRUE` if the character is regular text input, or
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* `GL_FALSE` otherwise.
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* @ingroup event
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*/
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void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint);
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void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint, int mods, int plain);
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/*! @brief Notifies shared code of a scroll event.
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* @param[in] window The window that received the event.
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@ -526,9 +526,14 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
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}
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case WM_CHAR:
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{
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_glfwInputChar(window, (unsigned int) wParam, getKeyMods(), GL_TRUE);
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return 0;
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}
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case WM_SYSCHAR:
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{
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_glfwInputChar(window, (unsigned int) wParam);
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_glfwInputChar(window, (unsigned int) wParam, getKeyMods(), GL_FALSE);
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return 0;
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}
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@ -543,7 +548,7 @@ 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);
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_glfwInputChar(window, (unsigned int) wParam, getKeyMods(), GL_TRUE);
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return FALSE;
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}
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@ -609,7 +609,10 @@ static void processEvent(XEvent *event)
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_glfwInputKey(window, key, event->xkey.keycode, GLFW_PRESS, mods);
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if (character != -1)
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_glfwInputChar(window, character);
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{
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const int plain = !(mods & (GLFW_MOD_CONTROL | GLFW_MOD_ALT));
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_glfwInputChar(window, character, mods, plain);
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}
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break;
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}
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@ -187,9 +187,8 @@ static const char* get_key_name(int key)
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case GLFW_KEY_LEFT_SUPER: return "LEFT SUPER";
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case GLFW_KEY_RIGHT_SUPER: return "RIGHT SUPER";
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case GLFW_KEY_MENU: return "MENU";
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case GLFW_KEY_UNKNOWN: return "UNKNOWN";
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default: return NULL;
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default: return "UNKNOWN";
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}
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}
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@ -218,15 +217,22 @@ static const char* get_button_name(int button)
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return "right";
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case GLFW_MOUSE_BUTTON_MIDDLE:
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return "middle";
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default:
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{
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static char name[16];
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sprintf(name, "%i", button);
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return name;
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}
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}
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return NULL;
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}
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static const char* get_mods_name(int mods)
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{
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static char name[512];
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if (mods == 0)
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return " no mods";
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name[0] = '\0';
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if (mods & GLFW_MOD_SHIFT)
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@ -321,18 +327,11 @@ static void window_iconify_callback(GLFWwindow* window, int iconified)
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static void mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
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{
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Slot* slot = glfwGetWindowUserPointer(window);
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const char* name = get_button_name(button);
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printf("%08x to %i at %0.3f: Mouse button %i",
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counter++, slot->number, glfwGetTime(), button);
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if (name)
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printf(" (%s)", name);
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if (mods)
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printf(" (with%s)", get_mods_name(mods));
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printf(" was %s\n", get_action_name(action));
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printf("%08x to %i at %0.3f: Mouse button %i (%s) (with%s) was %s\n",
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counter++, slot->number, glfwGetTime(), button,
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get_button_name(button),
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get_mods_name(mods),
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get_action_name(action));
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}
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static void cursor_position_callback(GLFWwindow* window, double x, double y)
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@ -359,19 +358,13 @@ static void scroll_callback(GLFWwindow* window, double x, double y)
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static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
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{
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const char* name = get_key_name(key);
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Slot* slot = glfwGetWindowUserPointer(window);
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printf("%08x to %i at %0.3f: Key 0x%04x Scancode 0x%04x",
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counter++, slot->number, glfwGetTime(), key, scancode);
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if (name)
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printf(" (%s)", name);
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if (mods)
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printf(" (with%s)", get_mods_name(mods));
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printf(" was %s\n", get_action_name(action));
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printf("%08x to %i at %0.3f: Key 0x%04x Scancode 0x%04x (%s) (with%s) was %s\n",
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counter++, slot->number, glfwGetTime(), key, scancode,
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get_key_name(key),
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get_mods_name(mods),
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get_action_name(action));
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if (action != GLFW_PRESS)
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return;
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@ -396,6 +389,15 @@ static void char_callback(GLFWwindow* window, unsigned int codepoint)
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get_character_string(codepoint));
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}
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static void char_mods_callback(GLFWwindow* window, unsigned int codepoint, int mods)
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{
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Slot* slot = glfwGetWindowUserPointer(window);
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printf("%08x to %i at %0.3f: Character 0x%08x (%s) (with%s) input\n",
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counter++, slot->number, glfwGetTime(), codepoint,
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get_character_string(codepoint),
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get_mods_name(mods));
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}
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static void drop_callback(GLFWwindow* window, int count, const char** names)
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{
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int i;
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@ -546,6 +548,7 @@ int main(int argc, char** argv)
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glfwSetScrollCallback(slots[i].window, scroll_callback);
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glfwSetKeyCallback(slots[i].window, key_callback);
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glfwSetCharCallback(slots[i].window, char_callback);
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glfwSetCharModsCallback(slots[i].window, char_mods_callback);
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glfwSetDropCallback(slots[i].window, drop_callback);
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glfwMakeContextCurrent(slots[i].window);
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