src/video/windows/SDL_windowswindow.c
author Ryan C. Gordon <icculus@icculus.org>
Fri, 14 Sep 2012 13:13:47 -0400
changeset 6427 34059553702a
parent 6422 fd0ac1b56115
child 6428 0028fa91dfc6
permissions -rwxr-xr-x
Consolidate some code in the Windows video target.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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#if SDL_VIDEO_DRIVER_WINDOWS
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#include "../SDL_sysvideo.h"
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#include "../SDL_pixels_c.h"
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#include "../../events/SDL_keyboard_c.h"
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#include "SDL_windowsvideo.h"
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#include "SDL_windowswindow.h"
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/* This is included after SDL_windowsvideo.h, which includes windows.h */
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#include "SDL_syswm.h"
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/* Windows CE compatibility */
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#ifndef SWP_NOCOPYBITS
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#define SWP_NOCOPYBITS 0
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#endif
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/* Fake window to help with DirectInput events. */
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HWND SDL_HelperWindow = NULL;
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static WCHAR *SDL_HelperWindowClassName = TEXT("SDLHelperWindowInputCatcher");
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static WCHAR *SDL_HelperWindowName = TEXT("SDLHelperWindowInputMsgWindow");
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static ATOM SDL_HelperWindowClass = 0;
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#define STYLE_BASIC         (WS_CLIPSIBLINGS | WS_CLIPCHILDREN)
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#define STYLE_FULLSCREEN    (WS_POPUP)
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#define STYLE_BORDERLESS    (WS_POPUP)
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#define STYLE_NORMAL        (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX)
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#define STYLE_RESIZABLE     (WS_THICKFRAME | WS_MAXIMIZEBOX)
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#define STYLE_MASK          (STYLE_FULLSCREEN | STYLE_BORDERLESS | STYLE_NORMAL | STYLE_RESIZABLE)
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static DWORD
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GetWindowStyle(SDL_Window * window)
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{
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    DWORD style = 0;
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    if (window->flags & SDL_WINDOW_FULLSCREEN) {
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        style |= STYLE_FULLSCREEN;
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    } else {
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        if (window->flags & SDL_WINDOW_BORDERLESS) {
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            style |= STYLE_BORDERLESS;
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        } else {
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            style |= STYLE_NORMAL;
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        }
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        if (window->flags & SDL_WINDOW_RESIZABLE) {
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            style |= STYLE_RESIZABLE;
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        }
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    }
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    return style;
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}
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static int
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SetupWindowData(_THIS, SDL_Window * window, HWND hwnd, SDL_bool created)
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{
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    SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
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    SDL_WindowData *data;
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    /* Allocate the window data */
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    data = (SDL_WindowData *) SDL_malloc(sizeof(*data));
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    if (!data) {
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        SDL_OutOfMemory();
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        return -1;
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    }
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    data->window = window;
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    data->hwnd = hwnd;
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    data->hdc = GetDC(hwnd);
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    data->created = created;
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    data->mouse_pressed = SDL_FALSE;
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    data->videodata = videodata;
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    window->driverdata = data;
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    /* Associate the data with the window */
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    if (!SetProp(hwnd, TEXT("SDL_WindowData"), data)) {
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        ReleaseDC(hwnd, data->hdc);
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        SDL_free(data);
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        WIN_SetError("SetProp() failed");
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        return -1;
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    }
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    /* Set up the window proc function */
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#ifdef GWLP_WNDPROC
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    data->wndproc = (WNDPROC) GetWindowLongPtr(hwnd, GWLP_WNDPROC);
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    if (data->wndproc == WIN_WindowProc) {
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        data->wndproc = NULL;
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    } else {
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        SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR) WIN_WindowProc);
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    }
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#else
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    data->wndproc = (WNDPROC) GetWindowLong(hwnd, GWL_WNDPROC);
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    if (data->wndproc == WIN_WindowProc) {
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        data->wndproc = NULL;
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    } else {
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        SetWindowLong(hwnd, GWL_WNDPROC, (LONG_PTR) WIN_WindowProc);
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    }
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#endif
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    /* Fill in the SDL window with the window data */
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    {
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        POINT point;
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        point.x = 0;
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        point.y = 0;
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        if (ClientToScreen(hwnd, &point)) {
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            window->x = point.x;
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            window->y = point.y;
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        }
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    }
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    {
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        RECT rect;
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        if (GetClientRect(hwnd, &rect)) {
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            window->w = rect.right;
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            window->h = rect.bottom;
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        }
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    }
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    {
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        DWORD style = GetWindowLong(hwnd, GWL_STYLE);
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        if (style & WS_VISIBLE) {
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            window->flags |= SDL_WINDOW_SHOWN;
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        } else {
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            window->flags &= ~SDL_WINDOW_SHOWN;
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        }
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        if (style & (WS_BORDER | WS_THICKFRAME)) {
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            window->flags &= ~SDL_WINDOW_BORDERLESS;
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        } else {
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            window->flags |= SDL_WINDOW_BORDERLESS;
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        }
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        if (style & WS_THICKFRAME) {
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            window->flags |= SDL_WINDOW_RESIZABLE;
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        } else {
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            window->flags &= ~SDL_WINDOW_RESIZABLE;
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        }
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#ifdef WS_MAXIMIZE
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        if (style & WS_MAXIMIZE) {
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            window->flags |= SDL_WINDOW_MAXIMIZED;
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        } else
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#endif
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        {
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            window->flags &= ~SDL_WINDOW_MAXIMIZED;
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        }
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#ifdef WS_MINIMIZE
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        if (style & WS_MINIMIZE) {
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            window->flags |= SDL_WINDOW_MINIMIZED;
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        } else
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#endif
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        {
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            window->flags &= ~SDL_WINDOW_MINIMIZED;
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        }
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    }
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    if (GetFocus() == hwnd) {
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        window->flags |= SDL_WINDOW_INPUT_FOCUS;
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        SDL_SetKeyboardFocus(data->window);
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        if (window->flags & SDL_WINDOW_INPUT_GRABBED) {
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            RECT rect;
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            GetClientRect(hwnd, &rect);
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            ClientToScreen(hwnd, (LPPOINT) & rect);
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            ClientToScreen(hwnd, (LPPOINT) & rect + 1);
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            ClipCursor(&rect);
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        }
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    }
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    /* Enable multi-touch */
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    if (videodata->RegisterTouchWindow) {
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        videodata->RegisterTouchWindow(hwnd, (TWF_FINETOUCH|TWF_WANTPALM));
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    }
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    /* All done! */
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    return 0;
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}
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int
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WIN_CreateWindow(_THIS, SDL_Window * window)
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{
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    HWND hwnd;
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    RECT rect;
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    DWORD style = STYLE_BASIC;
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    int x, y;
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    int w, h;
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    style |= GetWindowStyle(window);
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    /* Figure out what the window area will be */
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    rect.left = window->x;
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    rect.top = window->y;
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    rect.right = window->x + window->w;
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    rect.bottom = window->y + window->h;
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    AdjustWindowRectEx(&rect, style, FALSE, 0);
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    x = rect.left;
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    y = rect.top;
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    w = (rect.right - rect.left);
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    h = (rect.bottom - rect.top);
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    hwnd =
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        CreateWindow(SDL_Appname, TEXT(""), style, x, y, w, h, NULL, NULL,
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                     SDL_Instance, NULL);
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    if (!hwnd) {
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        WIN_SetError("Couldn't create window");
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        return -1;
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    }
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    WIN_PumpEvents(_this);
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    if (SetupWindowData(_this, window, hwnd, SDL_TRUE) < 0) {
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        DestroyWindow(hwnd);
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        return -1;
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    }
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#if SDL_VIDEO_OPENGL_WGL
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    if (window->flags & SDL_WINDOW_OPENGL) {
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        if (WIN_GL_SetupWindow(_this, window) < 0) {
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            WIN_DestroyWindow(_this, window);
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            return -1;
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        }
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    }
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#endif
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    return 0;
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}
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int
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WIN_CreateWindowFrom(_THIS, SDL_Window * window, const void *data)
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{
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    HWND hwnd = (HWND) data;
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    LPTSTR title;
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    int titleLen;
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    /* Query the title from the existing window */
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    titleLen = GetWindowTextLength(hwnd);
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    title = SDL_stack_alloc(TCHAR, titleLen + 1);
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    if (title) {
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        titleLen = GetWindowText(hwnd, title, titleLen);
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    } else {
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        titleLen = 0;
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    }
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    if (titleLen > 0) {
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        window->title = WIN_StringToUTF8(title);
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    }
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    if (title) {
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        SDL_stack_free(title);
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    }
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    if (SetupWindowData(_this, window, hwnd, SDL_FALSE) < 0) {
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        return -1;
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    }
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    return 0;
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}
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void
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WIN_SetWindowTitle(_THIS, SDL_Window * window)
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{
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    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
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    LPTSTR title;
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    if (window->title) {
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        title = WIN_UTF8ToString(window->title);
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    } else {
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        title = NULL;
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    }
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    SetWindowText(hwnd, title ? title : TEXT(""));
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    if (title) {
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        SDL_free(title);
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    }
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}
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void
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WIN_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon)
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{
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    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
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    HICON hicon = NULL;
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    BYTE *icon_bmp;
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    int icon_len;
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    SDL_RWops *dst;
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    SDL_Surface *surface;
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    /* Create temporary bitmap buffer */
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    icon_len = 40 + icon->h * icon->w * 4;
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    icon_bmp = SDL_stack_alloc(BYTE, icon_len);
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    dst = SDL_RWFromMem(icon_bmp, icon_len);
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    if (!dst) {
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        SDL_stack_free(icon_bmp);
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        return;
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    }
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    /* Write the BITMAPINFO header */
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    SDL_WriteLE32(dst, 40);
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    SDL_WriteLE32(dst, icon->w);
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    SDL_WriteLE32(dst, icon->h * 2);
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    SDL_WriteLE16(dst, 1);
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    SDL_WriteLE16(dst, 32);
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    SDL_WriteLE32(dst, BI_RGB);
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    SDL_WriteLE32(dst, icon->h * icon->w * 4);
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    SDL_WriteLE32(dst, 0);
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    SDL_WriteLE32(dst, 0);
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    SDL_WriteLE32(dst, 0);
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    SDL_WriteLE32(dst, 0);
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    /* Convert the icon to a 32-bit surface with alpha channel */
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    surface = SDL_ConvertSurfaceFormat(icon, SDL_PIXELFORMAT_ARGB8888, 0);
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    if (surface) {
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        /* Write the pixels upside down into the bitmap buffer */
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        int y = surface->h;
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        while (y--) {
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            Uint8 *src = (Uint8 *) surface->pixels + y * surface->pitch;
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            SDL_RWwrite(dst, src, surface->pitch, 1);
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        }
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        SDL_FreeSurface(surface);
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/* TODO: create the icon in WinCE (CreateIconFromResource isn't available) */
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#ifndef _WIN32_WCE
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        hicon = CreateIconFromResource(icon_bmp, icon_len, TRUE, 0x00030000);
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#endif
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    }
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    SDL_RWclose(dst);
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    SDL_stack_free(icon_bmp);
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    /* Set the icon for the window */
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    SendMessage(hwnd, WM_SETICON, ICON_SMALL, (LPARAM) hicon);
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    /* Set the icon in the task manager (should we do this?) */
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    SendMessage(hwnd, WM_SETICON, ICON_BIG, (LPARAM) hicon);
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}
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static void
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WIN_SetWindowPositionInternal(_THIS, SDL_Window * window, UINT flags)
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{
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    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
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    RECT rect;
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    DWORD style;
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    HWND top;
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    BOOL menu;
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    int x, y;
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    int w, h;
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    /* Figure out what the window area will be */
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    if (window->flags & SDL_WINDOW_FULLSCREEN) {
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        top = HWND_TOPMOST;
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    } else {
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        top = HWND_NOTOPMOST;
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    }
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    style = GetWindowLong(hwnd, GWL_STYLE);
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    rect.left = 0;
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   361
    rect.top = 0;
slouken@1895
   362
    rect.right = window->w;
slouken@1895
   363
    rect.bottom = window->h;
slouken@3168
   364
#ifdef _WIN32_WCE
slouken@3168
   365
    menu = FALSE;
slouken@3168
   366
#else
slouken@3168
   367
    menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
slouken@3168
   368
#endif
slouken@3168
   369
    AdjustWindowRectEx(&rect, style, menu, 0);
slouken@4486
   370
    w = (rect.right - rect.left);
slouken@4486
   371
    h = (rect.bottom - rect.top);
slouken@5495
   372
    x = window->x + rect.left;
slouken@5495
   373
    y = window->y + rect.top;
slouken@1895
   374
icculus@6427
   375
    SetWindowPos(hwnd, top, x, y, w, h, flags);
icculus@6427
   376
}
icculus@6427
   377
icculus@6427
   378
void
icculus@6427
   379
WIN_SetWindowPosition(_THIS, SDL_Window * window)
icculus@6427
   380
{
icculus@6427
   381
    WIN_SetWindowPositionInternal(_this, window, SWP_NOCOPYBITS | SWP_NOSIZE);
slouken@1895
   382
}
slouken@1895
   383
slouken@1895
   384
void
slouken@1895
   385
WIN_SetWindowSize(_THIS, SDL_Window * window)
slouken@1895
   386
{
icculus@6427
   387
    WIN_SetWindowPositionInternal(_this, window, SWP_NOCOPYBITS | SWP_NOMOVE);
slouken@5246
   388
}
slouken@5178
   389
slouken@5246
   390
#ifdef _WIN32_WCE
slouken@5246
   391
void WINCE_ShowWindow(_THIS, SDL_Window* window, int visible)
slouken@5246
   392
{
slouken@5246
   393
    SDL_WindowData* windowdata = (SDL_WindowData*) window->driverdata;
slouken@5246
   394
    SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
slouken@5246
   395
slouken@5246
   396
    if(visible) {
slouken@5246
   397
        if(window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@5246
   398
            if(videodata->SHFullScreen)
slouken@5246
   399
                videodata->SHFullScreen(windowdata->hwnd, SHFS_HIDETASKBAR | SHFS_HIDESTARTICON | SHFS_HIDESIPBUTTON);
slouken@5246
   400
slouken@5246
   401
            ShowWindow(FindWindow(TEXT("HHTaskBar"), NULL), SW_HIDE);
slouken@5246
   402
        }
slouken@5246
   403
slouken@5246
   404
        ShowWindow(windowdata->hwnd, SW_SHOW);
slouken@5246
   405
        SetForegroundWindow(windowdata->hwnd);
slouken@5246
   406
    } else {
slouken@5246
   407
        ShowWindow(windowdata->hwnd, SW_HIDE);
slouken@5246
   408
slouken@5246
   409
        if(window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@5246
   410
            if(videodata->SHFullScreen)
slouken@5246
   411
                videodata->SHFullScreen(windowdata->hwnd, SHFS_SHOWTASKBAR | SHFS_SHOWSTARTICON | SHFS_SHOWSIPBUTTON);
slouken@5246
   412
slouken@5246
   413
            ShowWindow(FindWindow(TEXT("HHTaskBar"), NULL), SW_SHOW);
slouken@5246
   414
slouken@5246
   415
        }
slouken@5246
   416
    }
slouken@1895
   417
}
slouken@5178
   418
#endif /* _WIN32_WCE */
slouken@1895
   419
slouken@1895
   420
void
slouken@1895
   421
WIN_ShowWindow(_THIS, SDL_Window * window)
slouken@1895
   422
{
slouken@4569
   423
#ifdef _WIN32_WCE
slouken@4569
   424
    WINCE_ShowWindow(_this, window, 1);
slouken@4569
   425
#else
slouken@1895
   426
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@1895
   427
    ShowWindow(hwnd, SW_SHOW);
slouken@3168
   428
#endif
slouken@1895
   429
}
slouken@1895
   430
slouken@1895
   431
void
slouken@1895
   432
WIN_HideWindow(_THIS, SDL_Window * window)
slouken@1895
   433
{
slouken@4569
   434
#ifdef _WIN32_WCE
slouken@4569
   435
    WINCE_ShowWindow(_this, window, 0);
slouken@4569
   436
#else
slouken@1895
   437
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@1895
   438
    ShowWindow(hwnd, SW_HIDE);
slouken@3168
   439
#endif
slouken@1895
   440
}
slouken@1895
   441
slouken@1895
   442
void
slouken@1895
   443
WIN_RaiseWindow(_THIS, SDL_Window * window)
slouken@1895
   444
{
slouken@1895
   445
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@1895
   446
    HWND top;
slouken@1895
   447
slouken@1895
   448
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
   449
        top = HWND_TOPMOST;
slouken@1895
   450
    } else {
slouken@1895
   451
        top = HWND_NOTOPMOST;
slouken@1895
   452
    }
slouken@1895
   453
    SetWindowPos(hwnd, top, 0, 0, 0, 0, (SWP_NOMOVE | SWP_NOSIZE));
slouken@1895
   454
}
slouken@1895
   455
slouken@1895
   456
void
slouken@1895
   457
WIN_MaximizeWindow(_THIS, SDL_Window * window)
slouken@1895
   458
{
slouken@1895
   459
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@4569
   460
slouken@4569
   461
#ifdef _WIN32_WCE
icculus@6403
   462
    if((window->flags & SDL_WINDOW_FULLSCREEN) && videodata->SHFullScreen) {
icculus@6403
   463
        SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
slouken@4569
   464
        videodata->SHFullScreen(hwnd, SHFS_HIDETASKBAR | SHFS_HIDESTARTICON | SHFS_HIDESIPBUTTON);
icculus@6403
   465
    }
slouken@4569
   466
#endif
slouken@1895
   467
slouken@1895
   468
    ShowWindow(hwnd, SW_MAXIMIZE);
slouken@1895
   469
}
slouken@1895
   470
slouken@1895
   471
void
slouken@1895
   472
WIN_MinimizeWindow(_THIS, SDL_Window * window)
slouken@1895
   473
{
slouken@1895
   474
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@1895
   475
slouken@1895
   476
    ShowWindow(hwnd, SW_MINIMIZE);
slouken@3168
   477
slouken@3168
   478
#ifdef _WIN32_WCE
icculus@6403
   479
    if((window->flags & SDL_WINDOW_FULLSCREEN) && videodata->SHFullScreen) {
icculus@6403
   480
        SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
slouken@5305
   481
        videodata->SHFullScreen(hwnd, SHFS_SHOWTASKBAR | SHFS_SHOWSTARTICON | SHFS_SHOWSIPBUTTON);
icculus@6403
   482
    }
slouken@3168
   483
#endif
slouken@1895
   484
}
slouken@1895
   485
slouken@1895
   486
void
icculus@6422
   487
WIN_SetWindowBordered(_THIS, SDL_Window * window, SDL_bool bordered)
icculus@6422
   488
{
icculus@6422
   489
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
icculus@6422
   490
    SetWindowLong(hwnd, GWL_STYLE, GetWindowStyle(window));
icculus@6422
   491
}
icculus@6422
   492
icculus@6422
   493
void
slouken@1895
   494
WIN_RestoreWindow(_THIS, SDL_Window * window)
slouken@1895
   495
{
slouken@1895
   496
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@1895
   497
slouken@1895
   498
    ShowWindow(hwnd, SW_RESTORE);
slouken@1895
   499
}
slouken@1895
   500
slouken@1895
   501
void
slouken@5305
   502
WIN_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay * display, SDL_bool fullscreen)
slouken@5305
   503
{
slouken@5305
   504
    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
slouken@5305
   505
    HWND hwnd = data->hwnd;
slouken@5305
   506
    RECT rect;
slouken@5305
   507
    SDL_Rect bounds;
slouken@5305
   508
    DWORD style;
slouken@5305
   509
    HWND top;
slouken@5305
   510
    BOOL menu;
slouken@5305
   511
    int x, y;
slouken@5305
   512
    int w, h;
slouken@5305
   513
slouken@5305
   514
    if (fullscreen) {
slouken@5305
   515
        top = HWND_TOPMOST;
slouken@5305
   516
    } else {
slouken@5305
   517
        top = HWND_NOTOPMOST;
slouken@5305
   518
    }
slouken@5305
   519
    style = GetWindowLong(hwnd, GWL_STYLE);
slouken@5305
   520
    style &= ~STYLE_MASK;
slouken@5305
   521
    style |= GetWindowStyle(window);
slouken@5305
   522
slouken@5305
   523
    WIN_GetDisplayBounds(_this, display, &bounds);
slouken@5305
   524
slouken@5305
   525
    if (fullscreen) {
slouken@5305
   526
        x = bounds.x;
slouken@5305
   527
        y = bounds.y;
slouken@5305
   528
        w = bounds.w;
slouken@5305
   529
        h = bounds.h;
slouken@5305
   530
    } else {
slouken@5305
   531
        rect.left = 0;
slouken@5305
   532
        rect.top = 0;
slouken@5398
   533
        rect.right = window->windowed.w;
slouken@5398
   534
        rect.bottom = window->windowed.h;
slouken@5305
   535
#ifdef _WIN32_WCE
slouken@5305
   536
        menu = FALSE;
slouken@5305
   537
#else
slouken@5305
   538
        menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
slouken@5305
   539
#endif
slouken@5305
   540
        AdjustWindowRectEx(&rect, style, menu, 0);
slouken@5305
   541
        w = (rect.right - rect.left);
slouken@5305
   542
        h = (rect.bottom - rect.top);
slouken@5398
   543
        x = window->windowed.x + rect.left;
slouken@5398
   544
        y = window->windowed.y + rect.top;
slouken@5305
   545
    }
slouken@5305
   546
    SetWindowLong(hwnd, GWL_STYLE, style);
slouken@5305
   547
    SetWindowPos(hwnd, top, x, y, w, h, SWP_NOCOPYBITS);
slouken@5305
   548
}
slouken@5305
   549
slouken@5466
   550
int
slouken@5466
   551
WIN_SetWindowGammaRamp(_THIS, SDL_Window * window, const Uint16 * ramp)
slouken@5466
   552
{
slouken@5466
   553
#ifdef _WIN32_WCE
slouken@5466
   554
    SDL_Unsupported();
slouken@5466
   555
    return -1;
slouken@5466
   556
#else
slouken@5466
   557
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5466
   558
    SDL_DisplayData *data = (SDL_DisplayData *) display->driverdata;
slouken@5466
   559
    HDC hdc;
slouken@5466
   560
    BOOL succeeded = FALSE;
slouken@5466
   561
slouken@5466
   562
    hdc = CreateDC(data->DeviceName, NULL, NULL, NULL);
slouken@5466
   563
    if (hdc) {
slouken@5466
   564
        succeeded = SetDeviceGammaRamp(hdc, (LPVOID)ramp);
slouken@5466
   565
        if (!succeeded) {
slouken@5466
   566
            WIN_SetError("SetDeviceGammaRamp()");
slouken@5466
   567
        }
slouken@5466
   568
        DeleteDC(hdc);
slouken@5466
   569
    }
slouken@5466
   570
    return succeeded ? 0 : -1;
slouken@5466
   571
#endif
slouken@5466
   572
}
slouken@5466
   573
slouken@5466
   574
int
slouken@5466
   575
WIN_GetWindowGammaRamp(_THIS, SDL_Window * window, Uint16 * ramp)
slouken@5466
   576
{
slouken@5466
   577
#ifdef _WIN32_WCE
slouken@5466
   578
    SDL_Unsupported();
slouken@5466
   579
    return -1;
slouken@5466
   580
#else
slouken@5466
   581
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5466
   582
    SDL_DisplayData *data = (SDL_DisplayData *) display->driverdata;
slouken@5466
   583
    HDC hdc;
slouken@5466
   584
    BOOL succeeded = FALSE;
slouken@5466
   585
slouken@5466
   586
    hdc = CreateDC(data->DeviceName, NULL, NULL, NULL);
slouken@5466
   587
    if (hdc) {
slouken@5466
   588
        succeeded = GetDeviceGammaRamp(hdc, (LPVOID)ramp);
slouken@5466
   589
        if (!succeeded) {
slouken@5466
   590
            WIN_SetError("GetDeviceGammaRamp()");
slouken@5466
   591
        }
slouken@5466
   592
        DeleteDC(hdc);
slouken@5466
   593
    }
slouken@5466
   594
    return succeeded ? 0 : -1;
slouken@5466
   595
#endif
slouken@5466
   596
}
slouken@5466
   597
slouken@5305
   598
void
slouken@1895
   599
WIN_SetWindowGrab(_THIS, SDL_Window * window)
slouken@1895
   600
{
slouken@1895
   601
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@1895
   602
slouken@5416
   603
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) &&
slouken@5416
   604
        (window->flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@1895
   605
        RECT rect;
slouken@1895
   606
        GetClientRect(hwnd, &rect);
slouken@1895
   607
        ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@1895
   608
        ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@1895
   609
        ClipCursor(&rect);
slouken@1895
   610
    } else {
slouken@1895
   611
        ClipCursor(NULL);
slouken@1895
   612
    }
slouken@1895
   613
}
slouken@1895
   614
slouken@1895
   615
void
slouken@1895
   616
WIN_DestroyWindow(_THIS, SDL_Window * window)
slouken@1895
   617
{
slouken@1895
   618
    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
slouken@1895
   619
slouken@1895
   620
    if (data) {
slouken@4569
   621
#ifdef _WIN32_WCE
slouken@6078
   622
        WINCE_ShowWindow(_this, window, 0);
slouken@4569
   623
#endif
slouken@1913
   624
        ReleaseDC(data->hwnd, data->hdc);
slouken@1895
   625
        if (data->created) {
slouken@1895
   626
            DestroyWindow(data->hwnd);
icculus@5580
   627
        } else {
icculus@5580
   628
            /* Restore any original event handler... */
icculus@5580
   629
            if (data->wndproc != NULL) {
icculus@5580
   630
#ifdef GWLP_WNDPROC
icculus@5581
   631
                SetWindowLongPtr(data->hwnd, GWLP_WNDPROC,
icculus@5581
   632
                                 (LONG_PTR) data->wndproc);
icculus@5580
   633
#else
icculus@5581
   634
                SetWindowLong(data->hwnd, GWL_WNDPROC,
icculus@5581
   635
                              (LONG_PTR) data->wndproc);
icculus@5580
   636
#endif
icculus@5580
   637
            }
slouken@1895
   638
        }
slouken@1895
   639
        SDL_free(data);
slouken@1895
   640
    }
slouken@1895
   641
}
slouken@1895
   642
slouken@1895
   643
SDL_bool
slouken@1895
   644
WIN_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)
slouken@1895
   645
{
slouken@1895
   646
    HWND hwnd = ((SDL_WindowData *) window->driverdata)->hwnd;
slouken@1895
   647
    if (info->version.major <= SDL_MAJOR_VERSION) {
slouken@4900
   648
        info->subsystem = SDL_SYSWM_WINDOWS;
slouken@5056
   649
        info->info.win.window = hwnd;
slouken@1895
   650
        return SDL_TRUE;
slouken@1895
   651
    } else {
slouken@1895
   652
        SDL_SetError("Application not compiled with SDL %d.%d\n",
slouken@1895
   653
                     SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
slouken@1895
   654
        return SDL_FALSE;
slouken@1895
   655
    }
slouken@1895
   656
}
slouken@1895
   657
slouken@2713
   658
slouken@2713
   659
/*
slouken@2713
   660
 * Creates a HelperWindow used for DirectInput events.
slouken@2713
   661
 */
slouken@2713
   662
int
slouken@2713
   663
SDL_HelperWindowCreate(void)
slouken@2713
   664
{
slouken@3097
   665
    HINSTANCE hInstance = GetModuleHandle(NULL);
slouken@3097
   666
    WNDCLASS wce;
slouken@3196
   667
    HWND hWndParent = NULL;
slouken@2713
   668
bobbens@3045
   669
    /* Make sure window isn't created twice. */
bobbens@3045
   670
    if (SDL_HelperWindow != NULL) {
bobbens@3045
   671
        return 0;
bobbens@3045
   672
    }
bobbens@3045
   673
slouken@2713
   674
    /* Create the class. */
slouken@2714
   675
    SDL_zero(wce);
slouken@3097
   676
    wce.lpfnWndProc = DefWindowProc;
slouken@2713
   677
    wce.lpszClassName = (LPCWSTR) SDL_HelperWindowClassName;
slouken@2713
   678
    wce.hInstance = hInstance;
slouken@2713
   679
slouken@2713
   680
    /* Register the class. */
slouken@3097
   681
    SDL_HelperWindowClass = RegisterClass(&wce);
slouken@2713
   682
    if (SDL_HelperWindowClass == 0) {
slouken@4500
   683
        WIN_SetError("Unable to create Helper Window Class");
slouken@2713
   684
        return -1;
slouken@2713
   685
    }
slouken@2713
   686
slouken@3168
   687
#ifndef _WIN32_WCE
slouken@3168
   688
    /* WinCE doesn't have HWND_MESSAGE */
slouken@3168
   689
    hWndParent = HWND_MESSAGE;
slouken@3168
   690
#endif
slouken@3168
   691
slouken@2713
   692
    /* Create the window. */
slouken@2714
   693
    SDL_HelperWindow = CreateWindowEx(0, SDL_HelperWindowClassName,
slouken@2714
   694
                                      SDL_HelperWindowName,
slouken@3168
   695
                                      WS_OVERLAPPED, CW_USEDEFAULT,
slouken@2714
   696
                                      CW_USEDEFAULT, CW_USEDEFAULT,
slouken@3168
   697
                                      CW_USEDEFAULT, hWndParent, NULL,
slouken@2714
   698
                                      hInstance, NULL);
slouken@2713
   699
    if (SDL_HelperWindow == NULL) {
bobbens@3045
   700
        UnregisterClass(SDL_HelperWindowClassName, hInstance);
slouken@4500
   701
        WIN_SetError("Unable to create Helper Window");
slouken@2713
   702
        return -1;
slouken@2713
   703
    }
slouken@2713
   704
slouken@2713
   705
    return 0;
slouken@2713
   706
}
slouken@2713
   707
slouken@2713
   708
slouken@2713
   709
/*
slouken@2713
   710
 * Destroys the HelperWindow previously created with SDL_HelperWindowCreate.
slouken@2713
   711
 */
slouken@2713
   712
void
slouken@2713
   713
SDL_HelperWindowDestroy(void)
slouken@2713
   714
{
slouken@3097
   715
    HINSTANCE hInstance = GetModuleHandle(NULL);
bobbens@2863
   716
slouken@2713
   717
    /* Destroy the window. */
bobbens@2863
   718
    if (SDL_HelperWindow != NULL) {
bobbens@2863
   719
        if (DestroyWindow(SDL_HelperWindow) == 0) {
slouken@4500
   720
            WIN_SetError("Unable to destroy Helper Window");
slouken@2865
   721
            return;
bobbens@2863
   722
        }
slouken@2713
   723
        SDL_HelperWindow = NULL;
slouken@2713
   724
    }
slouken@2713
   725
slouken@2713
   726
    /* Unregister the class. */
bobbens@2863
   727
    if (SDL_HelperWindowClass != 0) {
bobbens@2863
   728
        if ((UnregisterClass(SDL_HelperWindowClassName, hInstance)) == 0) {
slouken@4500
   729
            WIN_SetError("Unable to destroy Helper Window Class");
slouken@2865
   730
            return;
bobbens@2863
   731
        }
slouken@2713
   732
        SDL_HelperWindowClass = 0;
slouken@2713
   733
    }
slouken@2713
   734
}
slouken@2713
   735
slouken@6044
   736
#endif /* SDL_VIDEO_DRIVER_WINDOWS */
slouken@6044
   737
slouken@1895
   738
/* vi: set ts=4 sw=4 expandtab: */