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Add SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4 to SDL so that Reborn can keep running through Alt+F4.

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This commit is contained in:
andrewb 2015-08-03 11:37:03 -07:00
parent 270f38db08
commit a702c338f0
2 changed files with 27 additions and 1 deletions
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9
include/SDL_hints.h
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@ -593,6 +593,15 @@ extern "C" {
*/
#define SDL_HINT_NO_SIGNAL_HANDLERS "SDL_NO_SIGNAL_HANDLERS"
/**
* \brief Tell SDL not to generate window-close events for Alt+F4 on Windows.
*
* The variable can be set to the following values:
* "0" - SDL will generate a window-close event when it sees Alt+F4.
* "1" - SDL will only do normal key handling for Alt+F4.
*/
#define SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4 "SDL_WINDOWS_NO_CLOSE_ON_ALT_F4"
/**
* \brief An enumeration of hint priorities
*/

19
src/video/windows/SDL_windowsevents.c
View file

@ -32,6 +32,7 @@
#include "../../events/SDL_touch_c.h"
#include "../../events/scancodes_windows.h"
#include "SDL_assert.h"
#include "SDL_hints.h"
/* Dropfile support */
#include <shellapi.h>
@ -322,6 +323,22 @@ WIN_ConvertUTF32toUTF8(UINT32 codepoint, char * text)
return SDL_TRUE;
}
static SDL_bool
ShouldGenerateWindowCloseOnAltF4(void)
{
const char *hint;
hint = SDL_GetHint(SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4);
if (hint) {
if (*hint == '0') {
return SDL_TRUE;
} else {
return SDL_FALSE;
}
}
return SDL_TRUE;
}
LRESULT CALLBACK
WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
@ -559,7 +576,7 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
/* Detect relevant keyboard shortcuts */
if (keyboardState[SDL_SCANCODE_LALT] == SDL_PRESSED || keyboardState[SDL_SCANCODE_RALT] == SDL_PRESSED) {
/* ALT+F4: Close window */
if (code == SDL_SCANCODE_F4) {
if (code == SDL_SCANCODE_F4 && ShouldGenerateWindowCloseOnAltF4()) {
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
}
}