//======================================================================== // GLFW 3.1 Win32 - www.glfw.org //------------------------------------------------------------------------ // Copyright (c) 2002-2006 Marcus Geelnard // Copyright (c) 2006-2010 Camilla Berglund // // This software is provided 'as-is', without any express or implied // warranty. In no event will the authors be held liable for any damages // arising from the use of this software. // // Permission is granted to anyone to use this software for any purpose, // including commercial applications, and to alter it and redistribute it // freely, subject to the following restrictions: // // 1. The origin of this software must not be misrepresented; you must not // claim that you wrote the original software. If you use this software // in a product, an acknowledgment in the product documentation would // be appreciated but is not required. // // 2. Altered source versions must be plainly marked as such, and must not // be misrepresented as being the original software. // // 3. This notice may not be removed or altered from any source // distribution. // //======================================================================== #include "internal.h" #include #include #include #include #include #define _GLFW_KEY_INVALID -2 #define _GLFW_WNDCLASSNAME L"GLFW30" // Returns the window style for the specified window // static DWORD getWindowStyle(const _GLFWwindow* window) { DWORD style = WS_CLIPSIBLINGS | WS_CLIPCHILDREN; if (window->decorated && !window->monitor) { style |= WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX; if (window->resizable) style |= WS_MAXIMIZEBOX | WS_SIZEBOX; } else style |= WS_POPUP; return style; } // Returns the extended window style for the specified window // static DWORD getWindowExStyle(const _GLFWwindow* window) { DWORD style = WS_EX_APPWINDOW; if (window->decorated && !window->monitor) style |= WS_EX_WINDOWEDGE; return style; } // Updates the cursor clip rect // static void updateClipRect(_GLFWwindow* window) { RECT clipRect; GetClientRect(window->win32.handle, &clipRect); ClientToScreen(window->win32.handle, (POINT*) &clipRect.left); ClientToScreen(window->win32.handle, (POINT*) &clipRect.right); ClipCursor(&clipRect); } // Hide the mouse cursor // static void hideCursor(_GLFWwindow* window) { POINT pos; ClipCursor(NULL); if (GetCursorPos(&pos)) { if (WindowFromPoint(pos) == window->win32.handle) SetCursor(NULL); } } // Disable the mouse cursor // static void disableCursor(_GLFWwindow* window) { POINT pos; updateClipRect(window); if (GetCursorPos(&pos)) { if (WindowFromPoint(pos) == window->win32.handle) SetCursor(NULL); } } // Restores the mouse cursor // static void restoreCursor(_GLFWwindow* window) { POINT pos; ClipCursor(NULL); if (GetCursorPos(&pos)) { if (WindowFromPoint(pos) == window->win32.handle) { if (window->cursor) SetCursor(window->cursor->win32.handle); else SetCursor(LoadCursorW(NULL, IDC_ARROW)); } } } // Translates a GLFW standard cursor to a resource ID // static LPWSTR translateCursorShape(int shape) { switch (shape) { case GLFW_ARROW_CURSOR: return IDC_ARROW; case GLFW_IBEAM_CURSOR: return IDC_IBEAM; case GLFW_CROSSHAIR_CURSOR: return IDC_CROSS; case GLFW_HAND_CURSOR: return IDC_HAND; case GLFW_HRESIZE_CURSOR: return IDC_SIZEWE; case GLFW_VRESIZE_CURSOR: return IDC_SIZENS; } return NULL; } // Retrieves and translates modifier keys // static int getKeyMods(void) { int mods = 0; if (GetKeyState(VK_SHIFT) & (1 << 31)) mods |= GLFW_MOD_SHIFT; if (GetKeyState(VK_CONTROL) & (1 << 31)) mods |= GLFW_MOD_CONTROL; if (GetKeyState(VK_MENU) & (1 << 31)) mods |= GLFW_MOD_ALT; if ((GetKeyState(VK_LWIN) | GetKeyState(VK_RWIN)) & (1 << 31)) mods |= GLFW_MOD_SUPER; return mods; } // Retrieves and translates modifier keys // static int getAsyncKeyMods(void) { int mods = 0; if (GetAsyncKeyState(VK_SHIFT) & (1 << 31)) mods |= GLFW_MOD_SHIFT; if (GetAsyncKeyState(VK_CONTROL) & (1 << 31)) mods |= GLFW_MOD_CONTROL; if (GetAsyncKeyState(VK_MENU) & (1 << 31)) mods |= GLFW_MOD_ALT; if ((GetAsyncKeyState(VK_LWIN) | GetAsyncKeyState(VK_RWIN)) & (1 << 31)) mods |= GLFW_MOD_SUPER; return mods; } // Translates a Windows key to the corresponding GLFW key // static int translateKey(WPARAM wParam, LPARAM lParam) { if (wParam == VK_CONTROL) { // The CTRL keys require special handling MSG next; DWORD time; // Is this an extended key (i.e. right key)? if (lParam & 0x01000000) return GLFW_KEY_RIGHT_CONTROL; // Here is a trick: "Alt Gr" sends LCTRL, then RALT. We only // want the RALT message, so we try to see if the next message // is a RALT message. In that case, this is a false LCTRL! time = GetMessageTime(); if (PeekMessageW(&next, NULL, 0, 0, PM_NOREMOVE)) { if (next.message == WM_KEYDOWN || next.message == WM_SYSKEYDOWN || next.message == WM_KEYUP || next.message == WM_SYSKEYUP) { if (next.wParam == VK_MENU && (next.lParam & 0x01000000) && next.time == time) { // Next message is a RALT down message, which // means that this is not a proper LCTRL message return _GLFW_KEY_INVALID; } } } return GLFW_KEY_LEFT_CONTROL; } return _glfw.win32.publicKeys[HIWORD(lParam) & 0x1FF]; } // Enter full screen mode // static GLboolean enterFullscreenMode(_GLFWwindow* window) { GLFWvidmode mode; GLboolean status; int xpos, ypos; status = _glfwSetVideoMode(window->monitor, &window->videoMode); _glfwPlatformGetVideoMode(window->monitor, &mode); _glfwPlatformGetMonitorPos(window->monitor, &xpos, &ypos); SetWindowPos(window->win32.handle, HWND_TOPMOST, xpos, ypos, mode.width, mode.height, SWP_NOCOPYBITS); return status; } // Leave full screen mode // static void leaveFullscreenMode(_GLFWwindow* window) { _glfwRestoreVideoMode(window->monitor); } // Window callback function (handles window events) // static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { _GLFWwindow* window = (_GLFWwindow*) GetWindowLongPtrW(hWnd, 0); switch (uMsg) { case WM_NCCREATE: { CREATESTRUCTW* cs = (CREATESTRUCTW*) lParam; SetWindowLongPtrW(hWnd, 0, (LONG_PTR) cs->lpCreateParams); break; } case WM_SETFOCUS: { if (window->cursorMode != GLFW_CURSOR_NORMAL) _glfwPlatformApplyCursorMode(window); _glfwInputWindowFocus(window, GL_TRUE); return 0; } case WM_KILLFOCUS: { if (window->cursorMode != GLFW_CURSOR_NORMAL) restoreCursor(window); if (window->monitor && window->autoIconify) _glfwPlatformIconifyWindow(window); _glfwInputWindowFocus(window, GL_FALSE); return 0; } case WM_SYSCOMMAND: { switch (wParam & 0xfff0) { case SC_SCREENSAVE: case SC_MONITORPOWER: { if (window->monitor) { // We are running in full screen mode, so disallow // screen saver and screen blanking return 0; } else break; } // User trying to access application menu using ALT? case SC_KEYMENU: return 0; } break; } case WM_CLOSE: { _glfwInputWindowCloseRequest(window); return 0; } case WM_KEYDOWN: case WM_SYSKEYDOWN: { const int scancode = (lParam >> 16) & 0x1ff; const int key = translateKey(wParam, lParam); if (key == _GLFW_KEY_INVALID) break; _glfwInputKey(window, key, scancode, GLFW_PRESS, getKeyMods()); break; } case WM_CHAR: { _glfwInputChar(window, (unsigned int) wParam, getKeyMods(), GL_TRUE); return 0; } case WM_SYSCHAR: { _glfwInputChar(window, (unsigned int) wParam, getKeyMods(), GL_FALSE); return 0; } case WM_UNICHAR: { // This message is not sent by Windows, but is sent by some // third-party input method engines if (wParam == UNICODE_NOCHAR) { // Returning TRUE here announces support for this message return TRUE; } _glfwInputChar(window, (unsigned int) wParam, getKeyMods(), GL_TRUE); return FALSE; } case WM_KEYUP: case WM_SYSKEYUP: { const int mods = getKeyMods(); const int scancode = (lParam >> 16) & 0x1ff; const int key = translateKey(wParam, lParam); if (key == _GLFW_KEY_INVALID) break; if (wParam == VK_SHIFT) { // Release both Shift keys on Shift up event, as only one event // is sent even if both keys are released _glfwInputKey(window, GLFW_KEY_LEFT_SHIFT, scancode, GLFW_RELEASE, mods); _glfwInputKey(window, GLFW_KEY_RIGHT_SHIFT, scancode, GLFW_RELEASE, mods); } else if (wParam == VK_SNAPSHOT) { // Key down is not reported for the print screen key _glfwInputKey(window, key, scancode, GLFW_PRESS, mods); _glfwInputKey(window, key, scancode, GLFW_RELEASE, mods); } else _glfwInputKey(window, key, scancode, GLFW_RELEASE, mods); break; } case WM_LBUTTONDOWN: case WM_RBUTTONDOWN: case WM_MBUTTONDOWN: case WM_XBUTTONDOWN: { const int mods = getKeyMods(); SetCapture(hWnd); if (uMsg == WM_LBUTTONDOWN) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_LEFT, GLFW_PRESS, mods); else if (uMsg == WM_RBUTTONDOWN) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_RIGHT, GLFW_PRESS, mods); else if (uMsg == WM_MBUTTONDOWN) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS, mods); else { if (HIWORD(wParam) == XBUTTON1) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_4, GLFW_PRESS, mods); else if (HIWORD(wParam) == XBUTTON2) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_5, GLFW_PRESS, mods); return TRUE; } return 0; } case WM_LBUTTONUP: case WM_RBUTTONUP: case WM_MBUTTONUP: case WM_XBUTTONUP: { const int mods = getKeyMods(); ReleaseCapture(); if (uMsg == WM_LBUTTONUP) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_LEFT, GLFW_RELEASE, mods); else if (uMsg == WM_RBUTTONUP) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_RIGHT, GLFW_RELEASE, mods); else if (uMsg == WM_MBUTTONUP) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_RELEASE, mods); else { if (HIWORD(wParam) == XBUTTON1) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_4, GLFW_RELEASE, mods); else if (HIWORD(wParam) == XBUTTON2) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_5, GLFW_RELEASE, mods); return TRUE; } return 0; } case WM_MOUSEMOVE: { const int x = GET_X_LPARAM(lParam); const int y = GET_Y_LPARAM(lParam); if (window->cursorMode == GLFW_CURSOR_DISABLED) { if (_glfw.cursorWindow != window) break; _glfwInputCursorMotion(window, x - window->win32.cursorPosX, y - window->win32.cursorPosY); } else _glfwInputCursorMotion(window, x, y); window->win32.cursorPosX = x; window->win32.cursorPosY = y; if (!window->win32.cursorTracked) { TRACKMOUSEEVENT tme; ZeroMemory(&tme, sizeof(tme)); tme.cbSize = sizeof(tme); tme.dwFlags = TME_LEAVE; tme.hwndTrack = window->win32.handle; TrackMouseEvent(&tme); window->win32.cursorTracked = GL_TRUE; _glfwInputCursorEnter(window, GL_TRUE); } return 0; } case WM_MOUSELEAVE: { window->win32.cursorTracked = GL_FALSE; _glfwInputCursorEnter(window, GL_FALSE); return 0; } case WM_MOUSEWHEEL: { _glfwInputScroll(window, 0.0, (SHORT) HIWORD(wParam) / (double) WHEEL_DELTA); return 0; } case WM_MOUSEHWHEEL: { // This message is only sent on Windows Vista and later // NOTE: The X-axis is inverted for consistency with OS X and X11. _glfwInputScroll(window, -((SHORT) HIWORD(wParam) / (double) WHEEL_DELTA), 0.0); return 0; } case WM_SIZE: { if (_glfw.cursorWindow == window) { if (window->cursorMode == GLFW_CURSOR_DISABLED) updateClipRect(window); } if (!window->win32.iconified && wParam == SIZE_MINIMIZED) { window->win32.iconified = GL_TRUE; if (window->monitor) leaveFullscreenMode(window); _glfwInputWindowIconify(window, GL_TRUE); } else if (window->win32.iconified && (wParam == SIZE_RESTORED || wParam == SIZE_MAXIMIZED)) { window->win32.iconified = GL_FALSE; if (window->monitor) enterFullscreenMode(window); _glfwInputWindowIconify(window, GL_FALSE); } _glfwInputFramebufferSize(window, LOWORD(lParam), HIWORD(lParam)); _glfwInputWindowSize(window, LOWORD(lParam), HIWORD(lParam)); return 0; } case WM_MOVE: { if (_glfw.cursorWindow == window) { if (window->cursorMode == GLFW_CURSOR_DISABLED) updateClipRect(window); } // NOTE: This cannot use LOWORD/HIWORD recommended by MSDN, as // those macros do not handle negative window positions correctly _glfwInputWindowPos(window, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); return 0; } case WM_PAINT: { _glfwInputWindowDamage(window); break; } case WM_ERASEBKGND: { return TRUE; } case WM_SETCURSOR: { if (_glfw.cursorWindow == window && LOWORD(lParam) == HTCLIENT) { if (window->cursorMode == GLFW_CURSOR_HIDDEN || window->cursorMode == GLFW_CURSOR_DISABLED) { SetCursor(NULL); return TRUE; } else if (window->cursor) { SetCursor(window->cursor->win32.handle); return TRUE; } } break; } case WM_DEVICECHANGE: { if (DBT_DEVNODES_CHANGED == wParam) { _glfwInputMonitorChange(); return TRUE; } break; } case WM_DROPFILES: { HDROP drop = (HDROP) wParam; POINT pt; int i; const int count = DragQueryFileW(drop, 0xffffffff, NULL, 0); char** paths = calloc(count, sizeof(char*)); // Move the mouse to the position of the drop DragQueryPoint(drop, &pt); _glfwInputCursorMotion(window, pt.x, pt.y); for (i = 0; i < count; i++) { const UINT length = DragQueryFileW(drop, i, NULL, 0); WCHAR* buffer = calloc(length + 1, sizeof(WCHAR)); DragQueryFileW(drop, i, buffer, length + 1); paths[i] = _glfwCreateUTF8FromWideString(buffer); free(buffer); } _glfwInputDrop(window, count, (const char**) paths); for (i = 0; i < count; i++) free(paths[i]); free(paths); DragFinish(drop); return 0; } } return DefWindowProc(hWnd, uMsg, wParam, lParam); } // Translate client window size to full window size (including window borders) // static void getFullWindowSize(_GLFWwindow* window, int clientWidth, int clientHeight, int* fullWidth, int* fullHeight) { RECT rect = { 0, 0, clientWidth, clientHeight }; AdjustWindowRectEx(&rect, getWindowStyle(window), FALSE, getWindowExStyle(window)); *fullWidth = rect.right - rect.left; *fullHeight = rect.bottom - rect.top; } // Creates the GLFW window and rendering context // static int createWindow(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig) { int xpos, ypos, fullWidth, fullHeight; WCHAR* wideTitle; if (wndconfig->monitor) { GLFWvidmode mode; // NOTE: This window placement is temporary and approximate, as the // correct position and size cannot be known until the monitor // video mode has been set _glfwPlatformGetMonitorPos(wndconfig->monitor, &xpos, &ypos); _glfwPlatformGetVideoMode(wndconfig->monitor, &mode); fullWidth = mode.width; fullHeight = mode.height; } else { xpos = CW_USEDEFAULT; ypos = CW_USEDEFAULT; getFullWindowSize(window, wndconfig->width, wndconfig->height, &fullWidth, &fullHeight); } wideTitle = _glfwCreateWideStringFromUTF8(wndconfig->title); if (!wideTitle) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to convert window title to UTF-16"); return GL_FALSE; } window->win32.handle = CreateWindowExW(getWindowExStyle(window), _GLFW_WNDCLASSNAME, wideTitle, getWindowStyle(window), xpos, ypos, fullWidth, fullHeight, NULL, // No parent window NULL, // No window menu GetModuleHandleW(NULL), window); // Pass object to WM_CREATE free(wideTitle); if (!window->win32.handle) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to create window"); return GL_FALSE; } if (_glfw_ChangeWindowMessageFilterEx) { _glfw_ChangeWindowMessageFilterEx(window->win32.handle, WM_DROPFILES, MSGFLT_ALLOW, NULL); _glfw_ChangeWindowMessageFilterEx(window->win32.handle, WM_COPYDATA, MSGFLT_ALLOW, NULL); _glfw_ChangeWindowMessageFilterEx(window->win32.handle, WM_COPYGLOBALDATA, MSGFLT_ALLOW, NULL); } if (wndconfig->floating && !wndconfig->monitor) { SetWindowPos(window->win32.handle, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE); } DragAcceptFiles(window->win32.handle, TRUE); if (!_glfwCreateContext(window, ctxconfig, fbconfig)) return GL_FALSE; return GL_TRUE; } // Destroys the GLFW window and rendering context // static void destroyWindow(_GLFWwindow* window) { _glfwDestroyContext(window); if (window->win32.handle) { DestroyWindow(window->win32.handle); window->win32.handle = NULL; } } ////////////////////////////////////////////////////////////////////////// ////// GLFW internal API ////// ////////////////////////////////////////////////////////////////////////// // Registers the GLFW window class // GLboolean _glfwRegisterWindowClass(void) { WNDCLASSW wc; wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; wc.lpfnWndProc = (WNDPROC) windowProc; wc.cbClsExtra = 0; // No extra class data wc.cbWndExtra = sizeof(void*) + sizeof(int); // Make room for one pointer wc.hInstance = GetModuleHandleW(NULL); wc.hCursor = LoadCursorW(NULL, IDC_ARROW); wc.hbrBackground = NULL; // No background wc.lpszMenuName = NULL; // No menu wc.lpszClassName = _GLFW_WNDCLASSNAME; // Load user-provided icon if available wc.hIcon = LoadIconW(GetModuleHandleW(NULL), L"GLFW_ICON"); if (!wc.hIcon) { // No user-provided icon found, load default icon wc.hIcon = LoadIconW(NULL, IDI_WINLOGO); } if (!RegisterClassW(&wc)) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to register window class"); return GL_FALSE; } return GL_TRUE; } // Unregisters the GLFW window class // void _glfwUnregisterWindowClass(void) { UnregisterClassW(_GLFW_WNDCLASSNAME, GetModuleHandleW(NULL)); } ////////////////////////////////////////////////////////////////////////// ////// GLFW platform API ////// ////////////////////////////////////////////////////////////////////////// int _glfwPlatformCreateWindow(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig) { int status; if (!createWindow(window, wndconfig, ctxconfig, fbconfig)) return GL_FALSE; status = _glfwAnalyzeContext(window, ctxconfig, fbconfig); if (status == _GLFW_RECREATION_IMPOSSIBLE) return GL_FALSE; if (status == _GLFW_RECREATION_REQUIRED) { // Some window hints require us to re-create the context using WGL // extensions retrieved through the current context, as we cannot check // for WGL extensions or retrieve WGL entry points before we have a // current context (actually until we have implicitly loaded the ICD) // Yes, this is strange, and yes, this is the proper way on Win32 // As Windows only allows you to set the pixel format once for a // window, we need to destroy the current window and create a new one // to be able to use the new pixel format // Technically, it may be possible to keep the old window around if // we're just creating an OpenGL 3.0+ context with the same pixel // format, but it's not worth the added code complexity // First we clear the current context (the one we just created) // This is usually done by glfwDestroyWindow, but as we're not doing // full GLFW window destruction, it's duplicated here _glfwPlatformMakeContextCurrent(NULL); // Next destroy the Win32 window and WGL context (without resetting or // destroying the GLFW window object) destroyWindow(window); // ...and then create them again, this time with better APIs if (!createWindow(window, wndconfig, ctxconfig, fbconfig)) return GL_FALSE; } if (window->monitor) { _glfwPlatformShowWindow(window); if (!enterFullscreenMode(window)) return GL_FALSE; } return GL_TRUE; } void _glfwPlatformDestroyWindow(_GLFWwindow* window) { if (window->monitor) leaveFullscreenMode(window); destroyWindow(window); } void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title) { WCHAR* wideTitle = _glfwCreateWideStringFromUTF8(title); if (!wideTitle) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to convert window title to UTF-16"); return; } SetWindowTextW(window->win32.handle, wideTitle); free(wideTitle); } void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos) { POINT pos = { 0, 0 }; ClientToScreen(window->win32.handle, &pos); if (xpos) *xpos = pos.x; if (ypos) *ypos = pos.y; } void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos) { RECT rect = { xpos, ypos, xpos, ypos }; AdjustWindowRectEx(&rect, getWindowStyle(window), FALSE, getWindowExStyle(window)); SetWindowPos(window->win32.handle, NULL, rect.left, rect.top, 0, 0, SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE); } void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height) { RECT area; GetClientRect(window->win32.handle, &area); if (width) *width = area.right; if (height) *height = area.bottom; } void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height) { if (window->monitor) enterFullscreenMode(window); else { int fullWidth, fullHeight; getFullWindowSize(window, width, height, &fullWidth, &fullHeight); SetWindowPos(window->win32.handle, HWND_TOP, 0, 0, fullWidth, fullHeight, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOMOVE | SWP_NOZORDER); } } void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height) { _glfwPlatformGetWindowSize(window, width, height); } void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window, int* left, int* top, int* right, int* bottom) { RECT rect; int width, height; _glfwPlatformGetWindowSize(window, &width, &height); SetRect(&rect, 0, 0, width, height); AdjustWindowRectEx(&rect, getWindowStyle(window), FALSE, getWindowExStyle(window)); if (left) *left = -rect.left; if (top) *top = -rect.top; if (right) *right = rect.right - width; if (bottom) *bottom = rect.bottom - height; } void _glfwPlatformIconifyWindow(_GLFWwindow* window) { ShowWindow(window->win32.handle, SW_MINIMIZE); } void _glfwPlatformRestoreWindow(_GLFWwindow* window) { ShowWindow(window->win32.handle, SW_RESTORE); } void _glfwPlatformShowWindow(_GLFWwindow* window) { ShowWindow(window->win32.handle, SW_SHOW); BringWindowToTop(window->win32.handle); SetForegroundWindow(window->win32.handle); SetFocus(window->win32.handle); } void _glfwPlatformUnhideWindow(_GLFWwindow* window) { ShowWindow(window->win32.handle, SW_SHOW); } void _glfwPlatformHideWindow(_GLFWwindow* window) { ShowWindow(window->win32.handle, SW_HIDE); } int _glfwPlatformWindowFocused(_GLFWwindow* window) { return window->win32.handle == GetActiveWindow(); } int _glfwPlatformWindowIconified(_GLFWwindow* window) { return IsIconic(window->win32.handle); } int _glfwPlatformWindowVisible(_GLFWwindow* window) { return IsWindowVisible(window->win32.handle); } void _glfwPlatformPollEvents(void) { MSG msg; while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE)) { if (msg.message == WM_QUIT) { // Treat WM_QUIT as a close on all windows // While GLFW does not itself post WM_QUIT, other processes may post // it to this one, for example Task Manager _GLFWwindow* window = _glfw.windowListHead; while (window) { _glfwInputWindowCloseRequest(window); window = window->next; } } else { TranslateMessage(&msg); DispatchMessageW(&msg); } } if (_glfw.cursorWindow) { _GLFWwindow* window = _glfw.cursorWindow; // LSHIFT/RSHIFT fixup (keys tend to "stick" without this fix) // This is the only async event handling in GLFW, but it solves some // nasty problems { const int mods = getAsyncKeyMods(); // Get current state of left and right shift keys const int lshiftDown = (GetAsyncKeyState(VK_LSHIFT) >> 15) & 1; const int rshiftDown = (GetAsyncKeyState(VK_RSHIFT) >> 15) & 1; // See if this differs from our belief of what has happened // (we only have to check for lost key up events) if (!lshiftDown && window->keys[GLFW_KEY_LEFT_SHIFT] == 1) _glfwInputKey(window, GLFW_KEY_LEFT_SHIFT, 0, GLFW_RELEASE, mods); if (!rshiftDown && window->keys[GLFW_KEY_RIGHT_SHIFT] == 1) _glfwInputKey(window, GLFW_KEY_RIGHT_SHIFT, 0, GLFW_RELEASE, mods); } if (window->cursorMode == GLFW_CURSOR_DISABLED) { int width, height; _glfwPlatformGetWindowSize(window, &width, &height); // NOTE: Re-center the cursor only if it has moved since the last // call, to avoid breaking glfwWaitEvents with WM_MOUSEMOVE if (window->win32.cursorPosX != width / 2 || window->win32.cursorPosY != height / 2) { _glfwPlatformSetCursorPos(window, width / 2, height / 2); } } } } void _glfwPlatformWaitEvents(void) { WaitMessage(); _glfwPlatformPollEvents(); } void _glfwPlatformPostEmptyEvent(void) { _GLFWwindow* window = _glfw.windowListHead; PostMessage(window->win32.handle, WM_NULL, 0, 0); } void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos) { POINT pos; if (GetCursorPos(&pos)) { ScreenToClient(window->win32.handle, &pos); if (xpos) *xpos = pos.x; if (ypos) *ypos = pos.y; } } void _glfwPlatformSetCursorPos(_GLFWwindow* window, double xpos, double ypos) { POINT pos = { (int) xpos, (int) ypos }; // Store the new position so it can be recognized later window->win32.cursorPosX = pos.x; window->win32.cursorPosY = pos.y; ClientToScreen(window->win32.handle, &pos); SetCursorPos(pos.x, pos.y); } void _glfwPlatformApplyCursorMode(_GLFWwindow* window) { switch (window->cursorMode) { case GLFW_CURSOR_NORMAL: restoreCursor(window); break; case GLFW_CURSOR_HIDDEN: hideCursor(window); break; case GLFW_CURSOR_DISABLED: disableCursor(window); break; } } int _glfwPlatformCreateCursor(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot) { HDC dc; HBITMAP bitmap, mask; BITMAPV5HEADER bi; ICONINFO ii; DWORD* target = 0; BYTE* source = (BYTE*) image->pixels; int i; ZeroMemory(&bi, sizeof(bi)); bi.bV5Size = sizeof(BITMAPV5HEADER); bi.bV5Width = image->width; bi.bV5Height = -image->height; bi.bV5Planes = 1; bi.bV5BitCount = 32; bi.bV5Compression = BI_BITFIELDS; bi.bV5RedMask = 0x00ff0000; bi.bV5GreenMask = 0x0000ff00; bi.bV5BlueMask = 0x000000ff; bi.bV5AlphaMask = 0xff000000; dc = GetDC(NULL); bitmap = CreateDIBSection(dc, (BITMAPINFO*) &bi, DIB_RGB_COLORS, (void**) &target, NULL, (DWORD) 0); ReleaseDC(NULL, dc); if (!bitmap) return GL_FALSE; mask = CreateBitmap(image->width, image->height, 1, 1, NULL); if (!mask) { DeleteObject(bitmap); return GL_FALSE; } for (i = 0; i < image->width * image->height; i++, target++, source += 4) { *target = (source[3] << 24) | (source[0] << 16) | (source[1] << 8) | source[2]; } ZeroMemory(&ii, sizeof(ii)); ii.fIcon = FALSE; ii.xHotspot = xhot; ii.yHotspot = yhot; ii.hbmMask = mask; ii.hbmColor = bitmap; cursor->win32.handle = (HCURSOR) CreateIconIndirect(&ii); DeleteObject(bitmap); DeleteObject(mask); if (!cursor->win32.handle) return GL_FALSE; return GL_TRUE; } int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape) { cursor->win32.handle = CopyCursor(LoadCursorW(NULL, translateCursorShape(shape))); if (!cursor->win32.handle) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to create standard cursor"); return GL_FALSE; } return GL_TRUE; } void _glfwPlatformDestroyCursor(_GLFWcursor* cursor) { if (cursor->win32.handle) DestroyIcon((HICON) cursor->win32.handle); } void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor) { POINT pos; if (_glfw.cursorWindow != window) return; if (window->cursorMode != GLFW_CURSOR_NORMAL) return; if (!GetCursorPos(&pos)) return; if (WindowFromPoint(pos) != window->win32.handle) return; if (cursor) SetCursor(cursor->win32.handle); else SetCursor(LoadCursorW(NULL, IDC_ARROW)); } void _glfwPlatformSetClipboardString(_GLFWwindow* window, const char* string) { WCHAR* wideString; HANDLE stringHandle; size_t wideSize; wideString = _glfwCreateWideStringFromUTF8(string); if (!wideString) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to convert string to UTF-16"); return; } wideSize = (wcslen(wideString) + 1) * sizeof(WCHAR); stringHandle = GlobalAlloc(GMEM_MOVEABLE, wideSize); if (!stringHandle) { free(wideString); _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to allocate global handle for clipboard"); return; } memcpy(GlobalLock(stringHandle), wideString, wideSize); GlobalUnlock(stringHandle); if (!OpenClipboard(window->win32.handle)) { GlobalFree(stringHandle); free(wideString); _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to open clipboard"); return; } EmptyClipboard(); SetClipboardData(CF_UNICODETEXT, stringHandle); CloseClipboard(); free(wideString); } const char* _glfwPlatformGetClipboardString(_GLFWwindow* window) { HANDLE stringHandle; if (!OpenClipboard(window->win32.handle)) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to open clipboard"); return NULL; } stringHandle = GetClipboardData(CF_UNICODETEXT); if (!stringHandle) { CloseClipboard(); _glfwInputError(GLFW_FORMAT_UNAVAILABLE, "Win32: Failed to convert clipboard to string"); return NULL; } free(_glfw.win32.clipboardString); _glfw.win32.clipboardString = _glfwCreateUTF8FromWideString(GlobalLock(stringHandle)); GlobalUnlock(stringHandle); CloseClipboard(); if (!_glfw.win32.clipboardString) { _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to convert wide string to UTF-8"); return NULL; } return _glfw.win32.clipboardString; } ////////////////////////////////////////////////////////////////////////// ////// GLFW native API ////// ////////////////////////////////////////////////////////////////////////// GLFWAPI HWND glfwGetWin32Window(GLFWwindow* handle) { _GLFWwindow* window = (_GLFWwindow*) handle; _GLFW_REQUIRE_INIT_OR_RETURN(NULL); return window->win32.handle; }