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Updated SDL HTML documentation
author Sam Lantinga <slouken@libsdl.org>
date Tue, 10 Feb 2004 15:15:40 +0000
parents e5bc29de3f0a
children
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802:3c609d54f100 803:355632dca928
2 ><HEAD 2 ><HEAD
3 ><TITLE 3 ><TITLE
4 >SDL_SetAlpha</TITLE 4 >SDL_SetAlpha</TITLE
5 ><META 5 ><META
6 NAME="GENERATOR" 6 NAME="GENERATOR"
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
8 "><LINK 8 "><LINK
9 REL="HOME" 9 REL="HOME"
10 TITLE="SDL Library Documentation" 10 TITLE="SDL Library Documentation"
11 HREF="index.html"><LINK 11 HREF="index.html"><LINK
12 REL="UP" 12 REL="UP"
26 VLINK="#551a8b" 26 VLINK="#551a8b"
27 ALINK="#ff0000" 27 ALINK="#ff0000"
28 ><DIV 28 ><DIV
29 CLASS="NAVHEADER" 29 CLASS="NAVHEADER"
30 ><TABLE 30 ><TABLE
31 SUMMARY="Header navigation table"
31 WIDTH="100%" 32 WIDTH="100%"
32 BORDER="0" 33 BORDER="0"
33 CELLPADDING="0" 34 CELLPADDING="0"
34 CELLSPACING="0" 35 CELLSPACING="0"
35 ><TR 36 ><TR
43 WIDTH="10%" 44 WIDTH="10%"
44 ALIGN="left" 45 ALIGN="left"
45 VALIGN="bottom" 46 VALIGN="bottom"
46 ><A 47 ><A
47 HREF="sdlsetcolorkey.html" 48 HREF="sdlsetcolorkey.html"
49 ACCESSKEY="P"
48 >Prev</A 50 >Prev</A
49 ></TD 51 ></TD
50 ><TD 52 ><TD
51 WIDTH="80%" 53 WIDTH="80%"
52 ALIGN="center" 54 ALIGN="center"
56 WIDTH="10%" 58 WIDTH="10%"
57 ALIGN="right" 59 ALIGN="right"
58 VALIGN="bottom" 60 VALIGN="bottom"
59 ><A 61 ><A
60 HREF="sdlsetcliprect.html" 62 HREF="sdlsetcliprect.html"
63 ACCESSKEY="N"
61 >Next</A 64 >Next</A
62 ></TD 65 ></TD
63 ></TR 66 ></TR
64 ></TABLE 67 ></TABLE
65 ><HR 68 ><HR
66 ALIGN="LEFT" 69 ALIGN="LEFT"
67 WIDTH="100%"></DIV 70 WIDTH="100%"></DIV
68 ><H1 71 ><H1
69 ><A 72 ><A
70 NAME="SDLSETALPHA" 73 NAME="SDLSETALPHA"
71 >SDL_SetAlpha</A 74 ></A
72 ></H1 75 >SDL_SetAlpha</H1
73 ><DIV 76 ><DIV
74 CLASS="REFNAMEDIV" 77 CLASS="REFNAMEDIV"
75 ><A 78 ><A
76 NAME="AEN1712" 79 NAME="AEN2096"
77 ></A 80 ></A
78 ><H2 81 ><H2
79 >Name</H2 82 >Name</H2
80 >SDL_SetAlpha&nbsp;--&nbsp;Adjust the alpha properties of a surface</DIV 83 >SDL_SetAlpha&nbsp;--&nbsp;Adjust the alpha properties of a surface</DIV
81 ><DIV 84 ><DIV
82 CLASS="REFSYNOPSISDIV" 85 CLASS="REFSYNOPSISDIV"
83 ><A 86 ><A
84 NAME="AEN1715" 87 NAME="AEN2099"
85 ></A 88 ></A
86 ><H2 89 ><H2
87 >Synopsis</H2 90 >Synopsis</H2
88 ><DIV 91 ><DIV
89 CLASS="FUNCSYNOPSIS" 92 CLASS="FUNCSYNOPSIS"
90 ><A 93 ><A
91 NAME="AEN1716" 94 NAME="AEN2100"
92 ></A 95 ></A
93 ><P 96 ><P
94 ></P 97 ></P
95 ><PRE 98 ><PRE
96 CLASS="FUNCSYNOPSISINFO" 99 CLASS="FUNCSYNOPSISINFO"
110 ></DIV 113 ></DIV
111 ></DIV 114 ></DIV
112 ><DIV 115 ><DIV
113 CLASS="REFSECT1" 116 CLASS="REFSECT1"
114 ><A 117 ><A
115 NAME="AEN1722" 118 NAME="AEN2106"
116 ></A 119 ></A
117 ><H2 120 ><H2
118 >Description</H2 121 >Description</H2
119 ><DIV 122 ><DIV
120 CLASS="NOTE" 123 CLASS="NOTE"
196 ><P 199 ><P
197 >Alpha effects surface blitting in the following ways:</P 200 >Alpha effects surface blitting in the following ways:</P
198 ><DIV 201 ><DIV
199 CLASS="INFORMALTABLE" 202 CLASS="INFORMALTABLE"
200 ><A 203 ><A
201 NAME="AEN1742" 204 NAME="AEN2126"
202 ></A 205 ></A
203 ><P 206 ><P
204 ></P 207 ></P
205 ><TABLE 208 ><TABLE
206 BORDER="0" 209 BORDER="0"
377 ></DIV 380 ></DIV
378 ></DIV 381 ></DIV
379 ><DIV 382 ><DIV
380 CLASS="REFSECT1" 383 CLASS="REFSECT1"
381 ><A 384 ><A
382 NAME="AEN1795" 385 NAME="AEN2179"
383 ></A 386 ></A
384 ><H2 387 ><H2
385 >Return Value</H2 388 >Return Value</H2
386 ><P 389 ><P
387 >This function returns <SPAN 390 >This function returns <SPAN
394 > if there was an error.</P 397 > if there was an error.</P
395 ></DIV 398 ></DIV
396 ><DIV 399 ><DIV
397 CLASS="REFSECT1" 400 CLASS="REFSECT1"
398 ><A 401 ><A
399 NAME="AEN1800" 402 NAME="AEN2184"
400 ></A 403 ></A
401 ><H2 404 ><H2
402 >See Also</H2 405 >See Also</H2
403 ><P 406 ><P
404 ><A 407 ><A
433 ><DIV 436 ><DIV
434 CLASS="NAVFOOTER" 437 CLASS="NAVFOOTER"
435 ><HR 438 ><HR
436 ALIGN="LEFT" 439 ALIGN="LEFT"
437 WIDTH="100%"><TABLE 440 WIDTH="100%"><TABLE
441 SUMMARY="Footer navigation table"
438 WIDTH="100%" 442 WIDTH="100%"
439 BORDER="0" 443 BORDER="0"
440 CELLPADDING="0" 444 CELLPADDING="0"
441 CELLSPACING="0" 445 CELLSPACING="0"
442 ><TR 446 ><TR
444 WIDTH="33%" 448 WIDTH="33%"
445 ALIGN="left" 449 ALIGN="left"
446 VALIGN="top" 450 VALIGN="top"
447 ><A 451 ><A
448 HREF="sdlsetcolorkey.html" 452 HREF="sdlsetcolorkey.html"
453 ACCESSKEY="P"
449 >Prev</A 454 >Prev</A
450 ></TD 455 ></TD
451 ><TD 456 ><TD
452 WIDTH="34%" 457 WIDTH="34%"
453 ALIGN="center" 458 ALIGN="center"
454 VALIGN="top" 459 VALIGN="top"
455 ><A 460 ><A
456 HREF="index.html" 461 HREF="index.html"
462 ACCESSKEY="H"
457 >Home</A 463 >Home</A
458 ></TD 464 ></TD
459 ><TD 465 ><TD
460 WIDTH="33%" 466 WIDTH="33%"
461 ALIGN="right" 467 ALIGN="right"
462 VALIGN="top" 468 VALIGN="top"
463 ><A 469 ><A
464 HREF="sdlsetcliprect.html" 470 HREF="sdlsetcliprect.html"
471 ACCESSKEY="N"
465 >Next</A 472 >Next</A
466 ></TD 473 ></TD
467 ></TR 474 ></TR
468 ><TR 475 ><TR
469 ><TD 476 ><TD
475 WIDTH="34%" 482 WIDTH="34%"
476 ALIGN="center" 483 ALIGN="center"
477 VALIGN="top" 484 VALIGN="top"
478 ><A 485 ><A
479 HREF="video.html" 486 HREF="video.html"
487 ACCESSKEY="U"
480 >Up</A 488 >Up</A
481 ></TD 489 ></TD
482 ><TD 490 ><TD
483 WIDTH="33%" 491 WIDTH="33%"
484 ALIGN="right" 492 ALIGN="right"