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CHANGE: Added window API function glfwGetMonitorFromWindow. The function returns the monitor which has the largest area of intersection with the area of the specified window.
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@ -3890,6 +3890,28 @@ GLFWAPI void glfwFocusWindow(GLFWwindow* window);
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*/
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GLFWAPI void glfwRequestWindowAttention(GLFWwindow* window);
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/*! @brief Returns the monitor with the largest intersection area of the window
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*
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* This function returns the handle of the monitor which has the largest area of
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* intersection with the area of the specified window
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*
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* @param[in] window The window to query.
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* @return The monitor, or `NULL`
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* [error](@ref error_handling) occurred.
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*
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* @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
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*
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* @thread_safety This function must only be called from the main thread.
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*
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* @sa @ref window_monitor
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* @sa @ref glfwGetWindowMonitor
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*
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* @since Added in version 3.4.
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*
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* @ingroup window
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*/
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GLFWAPI GLFWmonitor* glfwGetMonitorFromWindow(GLFWwindow* window);
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/*! @brief Returns the monitor that the window uses for full screen mode.
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*
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* This function returns the handle of the monitor that the specified window is
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88
src/window.c
88
src/window.c
@ -954,6 +954,94 @@ GLFWAPI void glfwSetWindowAttrib(GLFWwindow* handle, int attrib, int value)
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_glfwInputError(GLFW_INVALID_ENUM, "Invalid window attribute 0x%08X", attrib);
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}
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typedef struct _rect { int x, y; int w, h; } _rect;
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#define RECT_INTERSECTS(ra, rb) \
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((ra)->x <= ((rb)->x + (rb)->w) && ((ra)->x + (ra)->w) >= (rb)->x && \
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(ra)->y <= ((rb)->y + (rb)->h) && ((ra)->y + (ra)->h) >= (rb)->y)
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static _rect _get_intersection(_rect* ra, _rect* rb)
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{
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_rect result = { 0, 0, 0, 0 };
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if (RECT_INTERSECTS(ra, rb))
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{
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result.x = _glfw_max(ra->x, rb->x);
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result.w = _glfw_min((ra->x + ra->w), (rb->x + rb->w)) - result.x;
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result.y = _glfw_max(ra->y, rb->y);
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result.h = _glfw_min((ra->y + ra->h), (rb->y + rb->h)) - result.y;
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}
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return result;
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}
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GLFWAPI GLFWmonitor* glfwGetMonitorFromWindow(GLFWwindow* window)
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{
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assert(window != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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GLFWmonitor* result = NULL;
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int monitorCount;
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GLFWmonitor** monitors = glfwGetMonitors(&monitorCount);
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if (monitorCount == 1)
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{
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result = monitors[0];
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}
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else if (monitorCount > 1)
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{
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_rect windowRect;
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glfwGetWindowPos(window, &windowRect.x, &windowRect.y);
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int windowWidth, windowHeight;
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glfwGetWindowSize(window, &windowWidth, &windowHeight);
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windowRect.w = windowWidth;
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windowRect.h = windowHeight;
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int windowFrameLeft, windowFrameTop, windowFrameRight, windowFrameBottom;
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glfwGetWindowFrameSize(window, &windowFrameLeft, &windowFrameTop,
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&windowFrameRight, &windowFrameBottom);
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windowRect.x -= windowFrameLeft;
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windowRect.y -= windowFrameTop;
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windowRect.w += windowFrameLeft + windowFrameRight;
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windowRect.h += windowFrameTop + windowFrameBottom;
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_rect currentRect = { 0, 0, 0, 0 };
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_rect overlapRect = { 0, 0, 0, 0 };
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unsigned int currentDim, overlapDim;
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int overlapMonitor = -1;
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int i;
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for (i = 0; i < monitorCount; i++)
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{
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_rect monitorRect;
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glfwGetMonitorPos(monitors[i], &monitorRect.x, &monitorRect.y);
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const GLFWvidmode* vidmode = glfwGetVideoMode(monitors[i]);
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monitorRect.w = vidmode->width;
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monitorRect.h = vidmode->height;
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currentRect = _get_intersection(&windowRect, &monitorRect);
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currentDim = currentRect.w * currentRect.h;
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overlapDim = overlapRect.w * overlapRect.h;
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if (currentDim > 0 && currentDim > overlapDim)
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{
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overlapRect = currentRect;
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overlapMonitor = i;
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}
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}
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if (overlapMonitor >= 0)
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{
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result = monitors[overlapMonitor];
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}
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}
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return result;
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}
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GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* handle)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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