Mercurial > sdl-ios-xcode
annotate docs/html/sdlloadbmp.html @ 615:7ec821f3cbd0
Date: Thu, 17 Apr 2003 23:27:34 -0400
From: Darrell Walisser
Subject: Yet another OS X cursor bug
The synopsis:
1. Call SDL_ShowCursor(0);
2. Call SDL_SetVideoMode();
3. Call SDL_GetEvent();
3. Call SDL_ShowCursor(1);
The result: Sometimes the cursor doesn't come back! Ack! Oddly enough,
it does come back when mousing over the dock or clicking in the menu
bar. But that's besides the point.
The reason why this is happening is a flaw in the handling of
activation/deactivation events. The short explanation is that the
HideCursor() and ShowCursor() calls must be balanced, but if the cursor
was initially hidden, HideCursor() was called again on the activate
event - so now the next ShowCursor() fails (as does the next, and the
next, for some reason).
So, here's the patch. All it does is keep track of the
HideCursor()/ShowCursor() calls so that they will always be balanced.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 20 Apr 2003 05:41:16 +0000 |
parents | e5bc29de3f0a |
children | 355632dca928 |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_LoadBMP</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
0 | 8 "><LINK |
9 REL="HOME" | |
10 TITLE="SDL Library Documentation" | |
11 HREF="index.html"><LINK | |
12 REL="UP" | |
13 TITLE="Video" | |
14 HREF="video.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_UnlockSurface" | |
17 HREF="sdlunlocksurface.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_SaveBMP" | |
20 HREF="sdlsavebmp.html"></HEAD | |
21 ><BODY | |
22 CLASS="REFENTRY" | |
23 BGCOLOR="#FFF8DC" | |
24 TEXT="#000000" | |
25 LINK="#0000ee" | |
26 VLINK="#551a8b" | |
27 ALINK="#ff0000" | |
28 ><DIV | |
29 CLASS="NAVHEADER" | |
30 ><TABLE | |
31 WIDTH="100%" | |
32 BORDER="0" | |
33 CELLPADDING="0" | |
34 CELLSPACING="0" | |
35 ><TR | |
36 ><TH | |
37 COLSPAN="3" | |
38 ALIGN="center" | |
39 >SDL Library Documentation</TH | |
40 ></TR | |
41 ><TR | |
42 ><TD | |
43 WIDTH="10%" | |
44 ALIGN="left" | |
45 VALIGN="bottom" | |
46 ><A | |
47 HREF="sdlunlocksurface.html" | |
48 >Prev</A | |
49 ></TD | |
50 ><TD | |
51 WIDTH="80%" | |
52 ALIGN="center" | |
53 VALIGN="bottom" | |
54 ></TD | |
55 ><TD | |
56 WIDTH="10%" | |
57 ALIGN="right" | |
58 VALIGN="bottom" | |
59 ><A | |
60 HREF="sdlsavebmp.html" | |
61 >Next</A | |
62 ></TD | |
63 ></TR | |
64 ></TABLE | |
65 ><HR | |
66 ALIGN="LEFT" | |
67 WIDTH="100%"></DIV | |
68 ><H1 | |
69 ><A | |
70 NAME="SDLLOADBMP" | |
71 >SDL_LoadBMP</A | |
72 ></H1 | |
73 ><DIV | |
74 CLASS="REFNAMEDIV" | |
75 ><A | |
181
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76 NAME="AEN1605" |
0 | 77 ></A |
78 ><H2 | |
79 >Name</H2 | |
80 >SDL_LoadBMP -- Load a Windows BMP file into an SDL_Surface.</DIV | |
81 ><DIV | |
82 CLASS="REFSYNOPSISDIV" | |
83 ><A | |
181
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84 NAME="AEN1608" |
0 | 85 ></A |
86 ><H2 | |
87 >Synopsis</H2 | |
88 ><DIV | |
89 CLASS="FUNCSYNOPSIS" | |
90 ><A | |
181
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91 NAME="AEN1609" |
0 | 92 ></A |
93 ><P | |
94 ></P | |
95 ><PRE | |
96 CLASS="FUNCSYNOPSISINFO" | |
97 >#include "SDL.h"</PRE | |
98 ><P | |
99 ><CODE | |
100 ><CODE | |
101 CLASS="FUNCDEF" | |
102 >SDL_Surface *<B | |
103 CLASS="FSFUNC" | |
104 >SDL_LoadBMP</B | |
105 ></CODE | |
106 >(const char *file);</CODE | |
107 ></P | |
108 ><P | |
109 ></P | |
110 ></DIV | |
111 ></DIV | |
112 ><DIV | |
113 CLASS="REFSECT1" | |
114 ><A | |
181
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115 NAME="AEN1615" |
0 | 116 ></A |
117 ><H2 | |
118 >Description</H2 | |
119 ><P | |
120 >Loads a surface from a named Windows BMP file.</P | |
121 ></DIV | |
122 ><DIV | |
123 CLASS="REFSECT1" | |
124 ><A | |
181
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125 NAME="AEN1618" |
0 | 126 ></A |
127 ><H2 | |
128 >Return Value</H2 | |
129 ><P | |
130 >Returns the new surface, or <TT | |
131 CLASS="LITERAL" | |
132 >NULL</TT | |
133 > | |
134 if there was an error.</P | |
135 ></DIV | |
136 ><DIV | |
137 CLASS="REFSECT1" | |
138 ><A | |
181
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139 NAME="AEN1622" |
0 | 140 ></A |
141 ><H2 | |
142 >See Also</H2 | |
143 ><P | |
144 ><A | |
145 HREF="sdlsavebmp.html" | |
146 ><TT | |
147 CLASS="FUNCTION" | |
148 >SDL_SaveBMP</TT | |
149 ></A | |
150 ></P | |
151 ></DIV | |
152 ><DIV | |
153 CLASS="NAVFOOTER" | |
154 ><HR | |
155 ALIGN="LEFT" | |
156 WIDTH="100%"><TABLE | |
157 WIDTH="100%" | |
158 BORDER="0" | |
159 CELLPADDING="0" | |
160 CELLSPACING="0" | |
161 ><TR | |
162 ><TD | |
163 WIDTH="33%" | |
164 ALIGN="left" | |
165 VALIGN="top" | |
166 ><A | |
167 HREF="sdlunlocksurface.html" | |
168 >Prev</A | |
169 ></TD | |
170 ><TD | |
171 WIDTH="34%" | |
172 ALIGN="center" | |
173 VALIGN="top" | |
174 ><A | |
175 HREF="index.html" | |
176 >Home</A | |
177 ></TD | |
178 ><TD | |
179 WIDTH="33%" | |
180 ALIGN="right" | |
181 VALIGN="top" | |
182 ><A | |
183 HREF="sdlsavebmp.html" | |
184 >Next</A | |
185 ></TD | |
186 ></TR | |
187 ><TR | |
188 ><TD | |
189 WIDTH="33%" | |
190 ALIGN="left" | |
191 VALIGN="top" | |
192 >SDL_UnlockSurface</TD | |
193 ><TD | |
194 WIDTH="34%" | |
195 ALIGN="center" | |
196 VALIGN="top" | |
197 ><A | |
198 HREF="video.html" | |
199 >Up</A | |
200 ></TD | |
201 ><TD | |
202 WIDTH="33%" | |
203 ALIGN="right" | |
204 VALIGN="top" | |
205 >SDL_SaveBMP</TD | |
206 ></TR | |
207 ></TABLE | |
208 ></DIV | |
209 ></BODY | |
210 ></HTML | |
211 > |