Mercurial > sdl-ios-xcode
annotate docs/html/sdlsavebmp.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_SaveBMP</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
55
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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_LoadBMP" | |
17 HREF="sdlloadbmp.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_SetColorKey" | |
20 HREF="sdlsetcolorkey.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="sdlloadbmp.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="sdlsetcolorkey.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="SDLSAVEBMP" | |
71 >SDL_SaveBMP</A | |
72 ></H1 | |
73 ><DIV | |
74 CLASS="REFNAMEDIV" | |
75 ><A | |
181
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76 NAME="AEN1631" |
0 | 77 ></A |
78 ><H2 | |
79 >Name</H2 | |
80 >SDL_SaveBMP -- Save an SDL_Surface as a Windows BMP file.</DIV | |
81 ><DIV | |
82 CLASS="REFSYNOPSISDIV" | |
83 ><A | |
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84 NAME="AEN1634" |
0 | 85 ></A |
86 ><H2 | |
87 >Synopsis</H2 | |
88 ><DIV | |
89 CLASS="FUNCSYNOPSIS" | |
90 ><A | |
181
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91 NAME="AEN1635" |
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 >int <B | |
103 CLASS="FSFUNC" | |
104 >SDL_SaveBMP</B | |
105 ></CODE | |
106 >(SDL_Surface *surface, 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="AEN1641" |
0 | 116 ></A |
117 ><H2 | |
118 >Description</H2 | |
119 ><P | |
120 >Saves the <SPAN | |
121 CLASS="STRUCTNAME" | |
122 >SDL_Surface</SPAN | |
123 > <TT | |
124 CLASS="PARAMETER" | |
125 ><I | |
126 >surface</I | |
127 ></TT | |
128 > as a Windows BMP file named <TT | |
129 CLASS="PARAMETER" | |
130 ><I | |
131 >file</I | |
132 ></TT | |
133 >.</P | |
134 ></DIV | |
135 ><DIV | |
136 CLASS="REFSECT1" | |
137 ><A | |
181
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138 NAME="AEN1647" |
0 | 139 ></A |
140 ><H2 | |
141 >Return Value</H2 | |
142 ><P | |
143 >Returns <SPAN | |
144 CLASS="RETURNVALUE" | |
145 >0</SPAN | |
146 > if successful or | |
147 <SPAN | |
148 CLASS="RETURNVALUE" | |
149 >-1</SPAN | |
150 > | |
151 if there was an error.</P | |
152 ></DIV | |
153 ><DIV | |
154 CLASS="REFSECT1" | |
155 ><A | |
181
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156 NAME="AEN1652" |
0 | 157 ></A |
158 ><H2 | |
159 >See Also</H2 | |
160 ><P | |
161 ><A | |
162 HREF="sdlloadbmp.html" | |
163 ><TT | |
164 CLASS="FUNCTION" | |
165 >SDL_LoadBMP</TT | |
166 ></A | |
167 ></P | |
168 ></DIV | |
169 ><DIV | |
170 CLASS="NAVFOOTER" | |
171 ><HR | |
172 ALIGN="LEFT" | |
173 WIDTH="100%"><TABLE | |
174 WIDTH="100%" | |
175 BORDER="0" | |
176 CELLPADDING="0" | |
177 CELLSPACING="0" | |
178 ><TR | |
179 ><TD | |
180 WIDTH="33%" | |
181 ALIGN="left" | |
182 VALIGN="top" | |
183 ><A | |
184 HREF="sdlloadbmp.html" | |
185 >Prev</A | |
186 ></TD | |
187 ><TD | |
188 WIDTH="34%" | |
189 ALIGN="center" | |
190 VALIGN="top" | |
191 ><A | |
192 HREF="index.html" | |
193 >Home</A | |
194 ></TD | |
195 ><TD | |
196 WIDTH="33%" | |
197 ALIGN="right" | |
198 VALIGN="top" | |
199 ><A | |
200 HREF="sdlsetcolorkey.html" | |
201 >Next</A | |
202 ></TD | |
203 ></TR | |
204 ><TR | |
205 ><TD | |
206 WIDTH="33%" | |
207 ALIGN="left" | |
208 VALIGN="top" | |
209 >SDL_LoadBMP</TD | |
210 ><TD | |
211 WIDTH="34%" | |
212 ALIGN="center" | |
213 VALIGN="top" | |
214 ><A | |
215 HREF="video.html" | |
216 >Up</A | |
217 ></TD | |
218 ><TD | |
219 WIDTH="33%" | |
220 ALIGN="right" | |
221 VALIGN="top" | |
222 >SDL_SetColorKey</TD | |
223 ></TR | |
224 ></TABLE | |
225 ></DIV | |
226 ></BODY | |
227 ></HTML | |
228 > |