Mercurial > sdl-ios-xcode
view docs/man3/SDL_CreateCursor.3 @ 916:46916168361d
Date: Sun, 25 Jul 2004 23:10:03 +0800
From: Chris Taylor
Subject: SDL for Macintosh Programmer's Workshop: removed dynamic loading
I'm working on a game called D2X which uses SDL, and I recently ported
it to Mac OS 9. I used MPW to build it. It uses OpenGL. To get it to
work, I had to build SDL so it doesn't dynamically load OpenGL. This is
because I don't think MPW supports dynamic loading. The following patch
makes sure when SDL is built under MPW, dynamic loading of shared
libraries is disabled.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 25 Jul 2004 19:43:56 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
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.TH "SDL_CreateCursor" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_CreateCursor\- Creates a new mouse cursor\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBSDL_Cursor *\fBSDL_CreateCursor\fP\fR(\fBUint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y\fR); .SH "DESCRIPTION" .PP Create a cursor using the specified \fBdata\fR and \fBmask\fR (in MSB format)\&. The cursor width must be a multiple of 8 bits\&. .PP The cursor is created in black and white according to the following: .TP 20 \fBData / Mask\fR \fBResulting pixel on screen\fR .TP 20 0 / 1 White .TP 20 1 / 1 Black .TP 20 0 / 0 Transparent .TP 20 1 / 0 Inverted color if possible, black if not\&. .PP Cursors created with this function must be freed with \fISDL_FreeCursor\fR\&. .SH "EXAMPLE" .PP .nf \f(CW/* Stolen from the mailing list */ /* Creates a new mouse cursor from an XPM */ /* XPM */ static const char *arrow[] = { /* width height num_colors chars_per_pixel */ " 32 32 3 1", /* colors */ "X c #000000", "\&. c #ffffff", " c None", /* pixels */ "X ", "XX ", "X\&.X ", "X\&.\&.X ", "X\&.\&.\&.X ", "X\&.\&.\&.\&.X ", "X\&.\&.\&.\&.\&.X ", "X\&.\&.\&.\&.\&.\&.X ", "X\&.\&.\&.\&.\&.\&.\&.X ", "X\&.\&.\&.\&.\&.\&.\&.\&.X ", "X\&.\&.\&.\&.\&.XXXXX ", "X\&.\&.X\&.\&.X ", "X\&.X X\&.\&.X ", "XX X\&.\&.X ", "X X\&.\&.X ", " X\&.\&.X ", " X\&.\&.X ", " X\&.\&.X ", " XX ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", "0,0" }; static SDL_Cursor *init_system_cursor(const char *image[]) { int i, row, col; Uint8 data[4*32]; Uint8 mask[4*32]; int hot_x, hot_y; i = -1; for ( row=0; row<32; ++row ) { for ( col=0; col<32; ++col ) { if ( col % 8 ) { data[i] <<= 1; mask[i] <<= 1; } else { ++i; data[i] = mask[i] = 0; } switch (image[4+row][col]) { case \&'X\&': data[i] |= 0x01; k[i] |= 0x01; break; case \&'\&.\&': mask[i] |= 0x01; break; case \&' \&': break; } } } sscanf(image[4+row], "%d,%d", &hot_x, &hot_y); return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y); }\fR .fi .PP .SH "SEE ALSO" .PP \fI\fBSDL_FreeCursor\fP\fR, \fI\fBSDL_SetCursor\fP\fR, \fI\fBSDL_ShowCursor\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01