Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_MapRGBA.3 @ 4391:07b330419439 SDL-1.2
Fixed bug #849 some more:
Tim Angus 2009-11-26 14:41:04 PST
Fix to the cursor not being responsive when the app doesn't have
SDL_APPINPUTFOCUS
The problems with the directx driver are similar to the ones I introduced in
the windib driver with r4478. Basically if the application did not have focus,
the mouse position is not updated. It's not really that the mouse cursor was
invisible, it's that it is stuck underneath another window where you can't see
it. This behaviour predates my r4478 changes and is the reason I unwittingly
broke the windib driver as I had been replicating the way the directx driver
deals with focus. Prior to r4478 the directx driver could not be used in
windowed mode, so the broken focusing would not have actually been observable.
Anyway, the attached patch makes the directx driver behaves like the windib
driver in terms of focus.
Time for 1.2.15? ;)
I've added an additional change of moving the calls to WIN_GrabInput that are
made on WM_ACTIVATE messages so that they only occur when the state is
SDL_APPINPUTFOCUS. When a fullscreen application is minimised using alt-tab, it
still receives WM_ACTIVATE messages when other applications are selected. If
WIN_GrabInput is called when the SDL application doesn't have input focus, bad
things happen; it shouldn't be being called at all.
I've also added a line to make sure that SDL_APPMOUSEFOCUS state is dropped
when the application is minimised following an alt-tab.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Fri, 11 Dec 2009 15:24:53 +0000 |
parents | 1238da4a7112 |
children |
rev | line source |
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
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1 .TH "SDL_MapRGBA" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
4107
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Erik Heckers fixed bug #493
Sam Lantinga <slouken@libsdl.org>
parents:
181
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3 SDL_MapRGBA \- Map a RGBA color value to a pixel format\&. |
0 | 4 .SH "SYNOPSIS" |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBUint32 \fBSDL_MapRGBA\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b, Uint8 a\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
11 Maps the RGBA color value to the specified pixel format and returns the pixel value as a 32-bit int\&. | |
12 .PP | |
13 If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned\&. | |
14 .PP | |
15 If the specified pixel format has no alpha component the alpha value will be ignored (as it will be in formats with a palette)\&. | |
16 .SH "RETURN VALUE" | |
17 .PP | |
18 A pixel value best approximating the given RGBA color value for a given pixel format\&. If the pixel format bpp (color depth) is less than 32-bpp then the unused upper bits of the return value can safely be ignored (e\&.g\&., with a 16-bpp format the return value can be assigned to a \fBUint16\fP, and similarly a \fBUint8\fP for an 8-bpp format)\&. | |
19 .SH "SEE ALSO" | |
20 .PP | |
21 \fISDL_GetRGB\fR, \fISDL_GetRGBA\fR, \fISDL_MapRGB\fR, \fISDL_PixelFormat\fR | |
4311
1238da4a7112
Debian patch: f230_manpages.diff
Sam Lantinga <slouken@libsdl.org>
parents:
4107
diff
changeset
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22 .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |