Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_CreateCursor.3 @ 1282:217f5d5a49e5
Date: Sat, 15 Jan 2005 02:01:51 +0000 (UTC)
From: jimrandomh
Subject: [SDL] Re: Modifier keys pressed during initialization stick
I wrote a simple test program which initializes SDL, prints the SDL
version number, then prints any keydown and keyup events with their
modifiers. (Source code below). Compilation was done using Visual
Studio 6, release mode.
My test sequence was:
Start a command prompt. Type the name of the test program.
shift down
enter down (program starts)
Wait for window to appear
enter up
shift up
spacebar down
spacebar up
Under Windows 98, the output was correct:
SDL 1.2.8
left shift down
shift-return down
shift-return up
left shift up
space down
space up
Under Windows 2000 and under Windows XP, the output was:
SDL 1.2.8
shift-space down
shift-space up
Since shift was not held at the time space was pressed, this is
incorrect. Similar results were observed with launching in different
ways (including double-clicking in Windows Explorer), so it does not
depend on the launching terminal.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 29 Jan 2006 07:57:13 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
rev | line source |
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181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_CreateCursor" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_CreateCursor\- Creates a new mouse cursor\&. | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBSDL_Cursor *\fBSDL_CreateCursor\fP\fR(\fBUint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
11 Create a cursor using the specified \fBdata\fR and \fBmask\fR (in MSB format)\&. The cursor width must be a multiple of 8 bits\&. | |
12 .PP | |
13 The cursor is created in black and white according to the following: | |
14 .TP 20 | |
15 \fBData / Mask\fR | |
16 \fBResulting pixel on screen\fR | |
17 .TP 20 | |
18 0 / 1 | |
19 White | |
20 .TP 20 | |
21 1 / 1 | |
22 Black | |
23 .TP 20 | |
24 0 / 0 | |
25 Transparent | |
26 .TP 20 | |
27 1 / 0 | |
28 Inverted color if possible, black if not\&. | |
29 .PP | |
30 Cursors created with this function must be freed with \fISDL_FreeCursor\fR\&. | |
31 .SH "EXAMPLE" | |
32 .PP | |
33 .nf | |
34 \f(CW/* Stolen from the mailing list */ | |
35 /* Creates a new mouse cursor from an XPM */ | |
36 | |
37 | |
38 /* XPM */ | |
39 static const char *arrow[] = { | |
40 /* width height num_colors chars_per_pixel */ | |
41 " 32 32 3 1", | |
42 /* colors */ | |
43 "X c #000000", | |
44 "\&. c #ffffff", | |
45 " c None", | |
46 /* pixels */ | |
47 "X ", | |
48 "XX ", | |
49 "X\&.X ", | |
50 "X\&.\&.X ", | |
51 "X\&.\&.\&.X ", | |
52 "X\&.\&.\&.\&.X ", | |
53 "X\&.\&.\&.\&.\&.X ", | |
54 "X\&.\&.\&.\&.\&.\&.X ", | |
55 "X\&.\&.\&.\&.\&.\&.\&.X ", | |
56 "X\&.\&.\&.\&.\&.\&.\&.\&.X ", | |
57 "X\&.\&.\&.\&.\&.XXXXX ", | |
58 "X\&.\&.X\&.\&.X ", | |
59 "X\&.X X\&.\&.X ", | |
60 "XX X\&.\&.X ", | |
61 "X X\&.\&.X ", | |
62 " X\&.\&.X ", | |
63 " X\&.\&.X ", | |
64 " X\&.\&.X ", | |
65 " XX ", | |
66 " ", | |
67 " ", | |
68 " ", | |
69 " ", | |
70 " ", | |
71 " ", | |
72 " ", | |
73 " ", | |
74 " ", | |
75 " ", | |
76 " ", | |
77 " ", | |
78 " ", | |
79 "0,0" | |
80 }; | |
81 | |
82 static SDL_Cursor *init_system_cursor(const char *image[]) | |
83 { | |
84 int i, row, col; | |
85 Uint8 data[4*32]; | |
86 Uint8 mask[4*32]; | |
87 int hot_x, hot_y; | |
88 | |
89 i = -1; | |
90 for ( row=0; row<32; ++row ) { | |
91 for ( col=0; col<32; ++col ) { | |
92 if ( col % 8 ) { | |
93 data[i] <<= 1; | |
94 mask[i] <<= 1; | |
95 } else { | |
96 ++i; | |
97 data[i] = mask[i] = 0; | |
98 } | |
99 switch (image[4+row][col]) { | |
100 case \&'X\&': | |
101 data[i] |= 0x01; | |
102 k[i] |= 0x01; | |
103 break; | |
104 case \&'\&.\&': | |
105 mask[i] |= 0x01; | |
106 break; | |
107 case \&' \&': | |
108 break; | |
109 } | |
110 } | |
111 } | |
112 sscanf(image[4+row], "%d,%d", &hot_x, &hot_y); | |
113 return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y); | |
114 }\fR | |
115 .fi | |
116 .PP | |
117 .SH "SEE ALSO" | |
118 .PP | |
119 \fI\fBSDL_FreeCursor\fP\fR, \fI\fBSDL_SetCursor\fP\fR, \fI\fBSDL_ShowCursor\fP\fR | |
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
120 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |