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Checking for a window before we try to refer to it (see e-mail by Eero Pajarre dated 1/10/2010 at 2:48 PM).

Browse Source 
git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@870 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
fayjf 2010-01-11 01:41:38 +00:00
parent cc885020fd
commit c152b70c81
1 changed files with 109 additions and 107 deletions
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216
freeglut/freeglut/src/freeglut_main.c
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@ -1590,117 +1590,119 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam,
/* printf ( "Window %3d message <%04x> %12d %12d\n", window?window->ID:0,
uMsg, wParam, lParam ); */
/* Checking for CTRL, ALT, and SHIFT key positions: Key Down! */
if ( !lControl && GetAsyncKeyState ( VK_LCONTROL ) )
if ( window )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_CTRL_L, window->State.MouseX, window->State.MouseY )
);
/* Checking for CTRL, ALT, and SHIFT key positions: Key Down! */
if ( !lControl && GetAsyncKeyState ( VK_LCONTROL ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_CTRL_L, window->State.MouseX, window->State.MouseY )
);
lControl = 1;
lControl = 1;
}
if ( !rControl && GetAsyncKeyState ( VK_RCONTROL ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_CTRL_R, window->State.MouseX, window->State.MouseY )
);
rControl = 1;
}
if ( !lShift && GetAsyncKeyState ( VK_LSHIFT ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_SHIFT_L, window->State.MouseX, window->State.MouseY )
);
lShift = 1;
}
if ( !rShift && GetAsyncKeyState ( VK_RSHIFT ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_SHIFT_R, window->State.MouseX, window->State.MouseY )
);
rShift = 1;
}
if ( !lAlt && GetAsyncKeyState ( VK_LMENU ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_ALT_L, window->State.MouseX, window->State.MouseY )
);
lAlt = 1;
}
if ( !rAlt && GetAsyncKeyState ( VK_RMENU ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_ALT_R, window->State.MouseX, window->State.MouseY )
);
rAlt = 1;
}
/* Checking for CTRL, ALT, and SHIFT key positions: Key Up! */
if ( lControl && !GetAsyncKeyState ( VK_LCONTROL ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_CTRL_L, window->State.MouseX, window->State.MouseY )
);
lControl = 0;
}
if ( rControl && !GetAsyncKeyState ( VK_RCONTROL ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_CTRL_R, window->State.MouseX, window->State.MouseY )
);
rControl = 0;
}
if ( lShift && !GetAsyncKeyState ( VK_LSHIFT ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_SHIFT_L, window->State.MouseX, window->State.MouseY )
);
lShift = 0;
}
if ( rShift && !GetAsyncKeyState ( VK_RSHIFT ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_SHIFT_R, window->State.MouseX, window->State.MouseY )
);
rShift = 0;
}
if ( lAlt && !GetAsyncKeyState ( VK_LMENU ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_ALT_L, window->State.MouseX, window->State.MouseY )
);
lAlt = 0;
}
if ( rAlt && !GetAsyncKeyState ( VK_RMENU ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_ALT_R, window->State.MouseX, window->State.MouseY )
);
rAlt = 0;
}
}
if ( !rControl && GetAsyncKeyState ( VK_RCONTROL ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_CTRL_R, window->State.MouseX, window->State.MouseY )
);
rControl = 1;
}
if ( !lShift && GetAsyncKeyState ( VK_LSHIFT ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_SHIFT_L, window->State.MouseX, window->State.MouseY )
);
lShift = 1;
}
if ( !rShift && GetAsyncKeyState ( VK_RSHIFT ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_SHIFT_R, window->State.MouseX, window->State.MouseY )
);
rShift = 1;
}
if ( !lAlt && GetAsyncKeyState ( VK_LMENU ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_ALT_L, window->State.MouseX, window->State.MouseY )
);
lAlt = 1;
}
if ( !rAlt && GetAsyncKeyState ( VK_RMENU ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_ALT_R, window->State.MouseX, window->State.MouseY )
);
rAlt = 1;
}
/* Checking for CTRL, ALT, and SHIFT key positions: Key Up! */
if ( lControl && !GetAsyncKeyState ( VK_LCONTROL ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_CTRL_L, window->State.MouseX, window->State.MouseY )
);
lControl = 0;
}
if ( rControl && !GetAsyncKeyState ( VK_RCONTROL ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_CTRL_R, window->State.MouseX, window->State.MouseY )
);
rControl = 0;
}
if ( lShift && !GetAsyncKeyState ( VK_LSHIFT ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_SHIFT_L, window->State.MouseX, window->State.MouseY )
);
lShift = 0;
}
if ( rShift && !GetAsyncKeyState ( VK_RSHIFT ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_SHIFT_R, window->State.MouseX, window->State.MouseY )
);
rShift = 0;
}
if ( lAlt && !GetAsyncKeyState ( VK_LMENU ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_ALT_L, window->State.MouseX, window->State.MouseY )
);
lAlt = 0;
}
if ( rAlt && !GetAsyncKeyState ( VK_RMENU ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_ALT_R, window->State.MouseX, window->State.MouseY )
);
rAlt = 0;
}
switch( uMsg )
{
case WM_CREATE: