Mercurial > sdl-ios-xcode
diff docs/man3/SDL_DisplayFormatAlpha.3 @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
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date | Thu, 26 Apr 2001 16:45:43 +0000 |
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children | 55f1f1b3e27d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/docs/man3/SDL_DisplayFormatAlpha.3 Thu Apr 26 16:45:43 2001 +0000 @@ -0,0 +1,20 @@ +.TH "SDL_DisplayFormatAlpha" "3" "Mon 12 Mar 2001, 01:04" "SDL" "SDL API Reference" +.SH "NAME" +SDL_DisplayFormatAlpha\- Convert a surface to the display format +.SH "SYNOPSIS" +.PP +\fB#include "SDL\&.h" +.sp +\fBSDL_Surface *\fBSDL_DisplayFormatAlpha\fP\fR(\fBSDL_Surface *surface\fR); +.SH "DESCRIPTION" +.PP +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 +.PP +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\&. +.SH "RETURN VALUE" +.PP +If the conversion fails or runs out of memory, it returns \fBNULL\fR +.SH "SEE ALSO" +.PP +\fISDL_ConvertSurface\fR, \fISDL_SetAlpha\fR, \fISDL_SetColorKey\fR, \fISDL_DisplayFormat\fR, \fISDL_Surface\fR +...\" created by instant / docbook-to-man, Mon 12 Mar 2001, 01:04