sdl2_frt/src/video/windows/SDL_windowswindow.h
Sam Lantinga 7c60bec493 Fixed bug 4018 - Implement SDL_GetWindowBordersSize() under Windows/Win32/WinAPI
Ismael Ferreras Morezuelas (Swyter)

As a new year gift I have implemented the Windows version of SDL_GetWindowBordersSize(). I needed it for auto-selecting a cozy window size for the game I'm currently working on and noticed that it only worked under X11, so I thought it could be a good excuse to contribute back more stuff. The Mercurial patch is attached as a .diff file. Let me know what you think.

Happy 2018 to all the SDL2 devs and users!

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PS: Keep in mind that Windows 10 includes the 8px invisible grip borders as part of the frame. There's a way of detecting if Aero/DWM is being used and ask only for the visible rect, but I believe that GetWindowRect() is doing that for a reason and working as intended, so I haven't changed it. (See [2])


References:
[1]: http://www.firststeps.ru/mfc/winapi/r.php?72
[2]: https://stackoverflow.com/a/34143777/674685
[3]: https://stackoverflow.com/a/431548/674685
[4]: https://wiki.libsdl.org/SDL_GetWindowBordersSize
2018-01-03 10:58:58 -08:00

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C

/*
Simple DirectMedia Layer
Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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 "../../SDL_internal.h"
#ifndef SDL_windowswindow_h_
#define SDL_windowswindow_h_
#if SDL_VIDEO_OPENGL_EGL
#include "../SDL_egl_c.h"
#endif
typedef struct
{
SDL_Window *window;
HWND hwnd;
HWND parent;
HDC hdc;
HDC mdc;
HINSTANCE hinstance;
HBITMAP hbm;
WNDPROC wndproc;
SDL_bool created;
WPARAM mouse_button_flags;
SDL_bool initializing;
SDL_bool expected_resize;
SDL_bool in_border_change;
SDL_bool in_title_click;
Uint8 focus_click_pending;
SDL_bool windowed_mode_was_maximized;
SDL_bool in_window_deactivation;
struct SDL_VideoData *videodata;
#if SDL_VIDEO_OPENGL_EGL
EGLSurface egl_surface;
#endif
} SDL_WindowData;
extern int WIN_CreateWindow(_THIS, SDL_Window * window);
extern int WIN_CreateWindowFrom(_THIS, SDL_Window * window, const void *data);
extern void WIN_SetWindowTitle(_THIS, SDL_Window * window);
extern void WIN_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon);
extern void WIN_SetWindowPosition(_THIS, SDL_Window * window);
extern void WIN_SetWindowSize(_THIS, SDL_Window * window);
extern int WIN_GetWindowBordersSize(_THIS, SDL_Window * window, int *top, int *left, int *bottom, int *right);
extern int WIN_SetWindowOpacity(_THIS, SDL_Window * window, float opacity);
extern void WIN_ShowWindow(_THIS, SDL_Window * window);
extern void WIN_HideWindow(_THIS, SDL_Window * window);
extern void WIN_RaiseWindow(_THIS, SDL_Window * window);
extern void WIN_MaximizeWindow(_THIS, SDL_Window * window);
extern void WIN_MinimizeWindow(_THIS, SDL_Window * window);
extern void WIN_RestoreWindow(_THIS, SDL_Window * window);
extern void WIN_SetWindowBordered(_THIS, SDL_Window * window, SDL_bool bordered);
extern void WIN_SetWindowResizable(_THIS, SDL_Window * window, SDL_bool resizable);
extern void WIN_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay * display, SDL_bool fullscreen);
extern int WIN_SetWindowGammaRamp(_THIS, SDL_Window * window, const Uint16 * ramp);
extern int WIN_GetWindowGammaRamp(_THIS, SDL_Window * window, Uint16 * ramp);
extern void WIN_SetWindowGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
extern void WIN_DestroyWindow(_THIS, SDL_Window * window);
extern SDL_bool WIN_GetWindowWMInfo(_THIS, SDL_Window * window,
struct SDL_SysWMinfo *info);
extern void WIN_OnWindowEnter(_THIS, SDL_Window * window);
extern void WIN_UpdateClipCursor(SDL_Window *window);
extern int WIN_SetWindowHitTest(SDL_Window *window, SDL_bool enabled);
#endif /* SDL_windowswindow_h_ */
/* vi: set ts=4 sw=4 expandtab: */