Mercurial > sdl-ios-xcode
comparison docs/man3/SDL_DisplayFormatAlpha.3 @ 0:74212992fb08
Initial revision
| author | Sam Lantinga <slouken@lokigames.com> |
|---|---|
| date | Thu, 26 Apr 2001 16:45:43 +0000 |
| parents | |
| children | 55f1f1b3e27d |
comparison
equal
deleted
inserted
replaced
| -1:000000000000 | 0:74212992fb08 |
|---|---|
| 1 .TH "SDL_DisplayFormatAlpha" "3" "Mon 12 Mar 2001, 01:04" "SDL" "SDL API Reference" | |
| 2 .SH "NAME" | |
| 3 SDL_DisplayFormatAlpha\- Convert a surface to the display format | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBSDL_Surface *\fBSDL_DisplayFormatAlpha\fP\fR(\fBSDL_Surface *surface\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 This function takes a surface and copies it to a new surface of the pixel format and colors of the video framebuffer plus an alpha channel, suitable for fast blitting onto the display surface\&. It calls \fISDL_ConvertSurface\fR | |
| 12 .PP | |
| 13 If you want to take advantage of hardware colorkey or alpha blit acceleration, you should set the colorkey and alpha value before calling this function\&. | |
| 14 .SH "RETURN VALUE" | |
| 15 .PP | |
| 16 If the conversion fails or runs out of memory, it returns \fBNULL\fR | |
| 17 .SH "SEE ALSO" | |
| 18 .PP | |
| 19 \fISDL_ConvertSurface\fR, \fISDL_SetAlpha\fR, \fISDL_SetColorKey\fR, \fISDL_DisplayFormat\fR, \fISDL_Surface\fR | |
| 20 ...\" created by instant / docbook-to-man, Mon 12 Mar 2001, 01:04 |