Fixed bug #526 Comment #1 From Simon Howard 2009-03-20 16:50:56 Hi, I'm the author of Chocolate Doom, one of the other source ports that James mentioned. This is a patch against the current SVN version of SDL 1.2 that fixes the bug. It has been tested and hopefully should be obviously correct from examining the changes. I'll give a brief explanation. When the palette is set with SDL_SetPalette, the IDirectDrawPalette_SetEntries DirectX function is invoked. However, when this happens, a WM_PALETTECHANGED message is sent to the window. A WM_PALETTECHANGED message can also be received if the palette is changed for some other reason, like if the system palette is changed. Therefore, the palette change handler (DX5_PaletteChanged) has code to deal with this case. It distinguishes "expected" palette changes (set with SDL_SetPalette) from "unexpected" palette changes using the colorchange_expected variable, which is set before calling IDirectDrawPalette_SetEntries. However, the code to set this variable is missing in the fullscreen code path. By setting this variable, the palette change is handled properly and the freezes go away.

.TH "SDL_PushEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_PushEvent \- Pushes an event onto the event queue
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBint \fBSDL_PushEvent\fP\fR(\fBSDL_Event *event\fR);
.SH "DESCRIPTION"
.PP
The event queue can actually be used as a two way communication channel\&. Not only can events be read from the queue, but the user can also push their own events onto it\&. \fBevent\fR is a pointer to the event structure you wish to push onto the queue\&.
.PP
.RS
\fBNote:  
.PP
Pushing device input events onto the queue doesn\&'t modify the state of the device within SDL\&.
.RE
.SH "RETURN VALUE"
.PP
Returns \fB0\fR on success or \fB-1\fR if the event couldn\&'t be pushed\&.
.SH "EXAMPLES"
.PP
See \fI\fBSDL_Event\fR\fR\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_PollEvent\fP\fR, \fI\fBSDL_PeepEvents\fP\fR, \fI\fBSDL_Event\fR\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59