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Date: Fri, 13 Feb 2004 17:03:16 +0100 From: Max Horn Subject: Modifier key fix The internal modifier state can get out of sync with reality. To trigger this, do for example this: 1) Launch an SDL app 2) Alt-click on the desktop (this will hide the SDL app). 3) Bring the SDL app back to the front 4) SDL will still think alt is pressed (and as such will treat left clicks like middle clicks). If you press and release alt, it'll be fine again. The attached patch cures this by rechecking the modifier state whenever we process an event.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 13 Feb 2004 17:57:16 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_VideoInfo</TITLE
><META
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><H1
><A
NAME="SDLVIDEOINFO"
></A
>SDL_VideoInfo</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN3390"
></A
><H2
>Name</H2
>SDL_VideoInfo&nbsp;--&nbsp;Video Target information</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3393"
></A
><H2
>Structure Definition</H2
><PRE
CLASS="PROGRAMLISTING"
>typedef struct{
  Uint32 hw_available:1;
  Uint32 wm_available:1;
  Uint32 blit_hw:1;
  Uint32 blit_hw_CC:1;
  Uint32 blit_hw_A:1;
  Uint32 blit_sw:1;
  Uint32 blit_sw_CC:1;
  Uint32 blit_sw_A:1;
  Uint32 blit_fill;
  Uint32 video_mem;
  SDL_PixelFormat *vfmt;
} SDL_VideoInfo;</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3396"
></A
><H2
>Structure Data</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN3398"
></A
><P
></P
><TABLE
BORDER="0"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>hw_available</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Is it possible to create hardware surfaces?</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>wm_available</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Is there a window manager available</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>blit_hw</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Are hardware to hardware blits accelerated?</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>blit_hw_CC</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Are hardware to hardware colorkey blits accelerated?</TD
></TR
><TR
><TD
ALIGN="LEFT"
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><TT
CLASS="STRUCTFIELD"
><I
>blit_hw_A</I
></TT
></TD
><TD
ALIGN="LEFT"
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>Are hardware to hardware alpha blits accelerated?</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>blit_sw</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Are software to hardware blits accelerated?</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>blit_sw_CC</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Are software to hardware colorkey blits accelerated?</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>blit_sw_A</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Are software to hardware alpha blits accelerated?</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>blit_fill</I
></TT
></TD
><TD
ALIGN="LEFT"
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>Are color fills accelerated?</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>video_mem</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Total amount of video memory in Kilobytes</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>vfmt</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
HREF="sdlpixelformat.html"
>Pixel format</A
> of the video device</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3446"
></A
><H2
>Description</H2
><P
>This (read-only) structure is returned by <A
HREF="sdlgetvideoinfo.html"
><TT
CLASS="FUNCTION"
>SDL_GetVideoInfo</TT
></A
>. It contains information on either the 'best' available mode  (if called before <A
HREF="sdlsetvideomode.html"
><TT
CLASS="FUNCTION"
>SDL_SetVideoMode</TT
></A
>) or the current video mode.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3453"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlpixelformat.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_PixelFormat</SPAN
></A
>,
<A
HREF="sdlgetvideoinfo.html"
><TT
CLASS="FUNCTION"
>SDL_GetVideoInfo</TT
></A
></P
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