Fix a compilation error on windows and many warnings
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7 hours ago, Gary Kramlich
Fix a compilation error on windows and many warnings

SIG_ACK is macro for handling signals on windows. We just want to use it as a
constant, so we #undef if we see it.

Mark a bunch of parameters as unused.

Fix a bunch of warnings about type casting function pointers.

Testing Done:
Compiled and ran on windows.

Reviewed at
* Purple - Internet Messaging Library
* Copyright (C) Pidgin Developers <>
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <>.
# error "only <purple.h> may be included directly"
#include <glib.h>
#include <glib-object.h>
#define PURPLE_TYPE_WHITEBOARD_UI_OPS (purple_whiteboard_ui_ops_get_type())
typedef struct _PurpleWhiteboardUiOps PurpleWhiteboardUiOps;
#include <libpurple/purplewhiteboard.h>
* PurpleWhiteboardUiOps:
* @create: create whiteboard
* @destroy: destroy whiteboard
* @set_dimensions: set whiteboard dimensions
* @set_brush: set the size and color of the brush
* @draw_point: draw a point
* @draw_line: draw a line
* @clear: clear whiteboard
* The PurpleWhiteboard UI Operations
struct _PurpleWhiteboardUiOps
void (*create)(PurpleWhiteboard *wb);
void (*destroy)(PurpleWhiteboard *wb);
void (*set_dimensions)(PurpleWhiteboard *wb, int width, int height);
void (*set_brush) (PurpleWhiteboard *wb, int size, int color);
void (*draw_point)(PurpleWhiteboard *wb, int x, int y,
int color, int size);
void (*draw_line)(PurpleWhiteboard *wb, int x1, int y1,
int x2, int y2,
int color, int size);
void (*clear)(PurpleWhiteboard *wb);
/*< private >*/
gpointer reserved[4];
GType purple_whiteboard_ui_ops_get_type(void);
* purple_whiteboard_set_ui_ops:
* @ops: The UI operations to set
* Sets the UI operations
void purple_whiteboard_set_ui_ops(PurpleWhiteboardUiOps *ops);
* purple_whiteboard_ui_ops_create:
* @whiteboard: A #PurpleWhiteboard instance.
* Creates a user interface for @whiteboard.
void purple_whiteboard_ui_ops_create(PurpleWhiteboard *whiteboard);
* purple_whiteboard_ui_ops_destroy:
* @whiteboard: A #PurpleWhiteboard instance.
* Destroys the user interface for @whiteboard.
void purple_whiteboard_ui_ops_destroy(PurpleWhiteboard *whiteboard);
* purple_whiteboard_ui_ops_set_dimensions:
* @whiteboard: A #PurpleWhiteboard instance.
* @width: The new width.
* @height: The new height.
* Sets the user interface dimensions for @whiteboard.
void purple_whiteboard_ui_ops_set_dimensions(PurpleWhiteboard *whiteboard, gint width, gint height);
* purple_whiteboard_ui_ops_set_brush:
* @whiteboard: A #PurpleWhiteboard instance.
* @size: The size of the brush.
* @color: The color to use.
* Sets the size and color of the active brush for @whiteboard.
void purple_whiteboard_ui_ops_set_brush(PurpleWhiteboard *whiteboard, gint size, gint color);
* purple_whiteboard_ui_ops_draw_point:
* @whiteboard: A #PurpleWhiteboard instance.
* @x: The x coordinate.
* @y: The y coordinate.
* @color: The color of the point.
* @size: The size of the point.
* Draws a point on @whiteboard.
void purple_whiteboard_ui_ops_draw_point(PurpleWhiteboard *whiteboard, gint x, gint y, gint color, gint size);
* purple_whiteboard_ui_ops_draw_line:
* @whiteboard: A #PurpleWhiteboard instance.
* @x1: The starting point's x coordinate.
* @y1: The starting point's y coordinate.
* @x2: The end point's x coordinate.
* @y2: The end point's y coordinate.
* @color: The color for the line.
* @size: The size of the line.
* Draws a line on @whiteboard.
void purple_whiteboard_ui_ops_draw_line(PurpleWhiteboard *whiteboard, gint x1, gint y1, gint x2, gint y2, gint color, gint size);
* purple_whiteboard_ui_ops_clear:
* @whiteboard: A #PurpleWhiteboard instance.
* Clears all the contents of @whiteboard.
void purple_whiteboard_ui_ops_clear(PurpleWhiteboard *whiteboard);