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7
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1 /**
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2 * wgsdk - Winamp plugin for Discord's GameSDK
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3 **/
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0
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4 #include <assert.h>
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5 #include <stdio.h>
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6 #include <stdlib.h>
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7 #include <Winamp/wa_ipc.h>
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8 #include "discord_game_sdk.h"
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9 #include "timer.h"
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10 #include "config.h"
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1
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11 #include "resource.h"
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7
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12 #include "utils.h"
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0
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13 #ifndef WIN32_LEAN_AND_MEAN
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14 # define WIN32_LEAN_AND_MEAN
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15 #endif
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16 #include <windows.h>
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1
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17 #include <windowsx.h>
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0
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18
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19 #define CLIENT_ID 969367220599803955
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20 #define DISCORD_REQUIRE(x) \
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21 assert(x == DiscordResult_Ok)
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22
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23 #define GPPHDR_VER 0x10
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24
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7
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25 int init();
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26 void conf();
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27 void quit();
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28
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29 /* Winamp-specific stuff */
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30 struct winamp_gpp {
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31 int version; // version of the plugin structure
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32 char *description; // name/title of the plugin
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33 int(*init)(); // function which will be executed on init event
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34 void(*conf)(); // function which will be executed on config event
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35 void(*quit)(); // function which will be executed on quit event
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36 HWND hwndParent; // hwnd of the Winamp client main window (stored by Winamp when dll is loaded)
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37 HINSTANCE hDllInstance; // hinstance of this plugin DLL. (stored by Winamp when dll is loaded)
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38 };
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39
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40 struct winamp_gpp g_plugin = {
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1
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41 GPPHDR_VER, // version of the plugin, defined in "gen_myplugin.h"
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42 "Discord GameSDK", // name/title of the plugin, defined in "gen_myplugin.h"
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43 init, // function name which will be executed on init event
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44 conf, // function name which will be executed on config event
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45 quit, // function name which will be executed on quit event
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46 0, // handle to Winamp main window, loaded by winamp when this dll is loaded
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47 0 // hinstance to this dll, loaded by winamp when this dll is loaded
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0
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48 };
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49
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7
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50 /* Discord stuff */
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0
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51
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52 struct DiscordActivity activity = {
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53 .application_id = CLIENT_ID,
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54 .name = "Winamp",
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55 .instance = 0
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56 };
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57
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58 struct IDiscordActivityEvents activities_events;
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59
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7
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60 struct application {
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61 struct IDiscordCore* core;
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62 struct IDiscordUsers* users;
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63 struct IDiscordActivityManager* activities;
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64 } app;
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65
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66 /* Now we get to our built-in stuff */
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67
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68 struct timer timer_callbacks = { .interval = 16 };
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0
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69
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7
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70 struct config config = {
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71 .display_title = 1,
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72 .show_elapsed_time = 1
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73 };
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74
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75 /* CallWindowProc is the *only* function that ever needs this. */
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76 WNDPROC _old_wnd_proc = 0;
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77
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78 /* ------------------------------------ */
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79
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80 void DISCORD_CALLBACK update_activity_callback(void* data, enum EDiscordResult result) {
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1
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81 DISCORD_REQUIRE(result);
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0
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82 }
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83
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7
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84 void report_current_song_status(int playback_state) {
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85 assert(playback_state != 0);
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86 strcpy(activity.state, playback_state == 1 ? "(Playing)" : "(Paused)");
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0
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87
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7
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88 activity.timestamps.start = (playback_state == 1 && config.show_elapsed_time)
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89 ? get_system_time_in_milliseconds() - SendMessage(g_plugin.hwndParent, WM_WA_IPC, 0, IPC_GETOUTPUTTIME) / 1000
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90 : 0;
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1
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91
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92 if (config.display_title) {
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0
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93 wchar_t* title = (wchar_t*)SendMessageW(g_plugin.hwndParent, WM_WA_IPC, 0, IPC_GET_PLAYING_TITLE);
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7
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94 assert(WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, title, -1, activity.details, 256, NULL, NULL));
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1
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95 }
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0
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96
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97 app.activities->update_activity(app.activities, &activity, &app, update_activity_callback);
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98 }
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99
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100 void report_idle_status(void)
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101 {
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102 activity.timestamps.start = 0;
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103 strcpy(activity.state, "(Idle)");
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104
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105 app.activities->update_activity(app.activities, &activity, &app, update_activity_callback);
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106 }
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107
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108 void update_rich_presence_details(void)
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109 {
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7
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110 LONG is_playing = SendMessageW(g_plugin.hwndParent, WM_WA_IPC, 0, IPC_ISPLAYING);
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0
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111
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7
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112 switch (is_playing) {
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0
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113 case 0:
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114 report_idle_status();
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115 break;
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4
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116 case 1:
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117 case 3:
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7
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118 report_current_song_status(is_playing);
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4
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119 default:
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120 break;
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0
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121 }
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122 }
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123
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7
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124 void CALLBACK TimerProc(HWND, UINT, UINT_PTR, DWORD) {
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125 DISCORD_REQUIRE(app.core->run_callbacks(app.core));
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126 }
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127
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128 LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
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0
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129 if (message == WM_WA_IPC && lParam == IPC_CB_MISC && wParam == IPC_CB_MISC_STATUS)
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130 update_rich_presence_details();
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131
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7
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132 return CallWindowProc(_old_wnd_proc, hwnd, message, wParam, lParam);
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0
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133 }
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134
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7
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135 #define set_wnd_long(x) \
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136 (WNDPROC)SetWindowLong##x(g_plugin.hwndParent, GWLP_WNDPROC, (LONG)WndProc)
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0
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137 int init() {
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138 memset(&app, 0, sizeof(app));
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139 memset(&activity, 0, sizeof(activity));
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1
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140 memset(&activities_events, 0, sizeof(activities_events));
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0
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141
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7
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142 if (IsWindowUnicode(g_plugin.hwndParent))
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143 _old_wnd_proc = set_wnd_long(W);
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144 else
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145 _old_wnd_proc = set_wnd_long(A);
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146
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0
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147 struct DiscordCreateParams params;
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148 DiscordCreateParamsSetDefault(¶ms);
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149 params.client_id = CLIENT_ID;
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150 params.flags = DiscordCreateFlags_Default;
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151 params.event_data = &app;
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152 params.activity_events = &activities_events;
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153
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154 DISCORD_REQUIRE(DiscordCreate(DISCORD_VERSION, ¶ms, &app.core));
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155
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156 app.activities = app.core->get_activity_manager(app.core);
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157
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158 timer_init(&timer_callbacks, g_plugin.hwndParent, TimerProc);
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159 timer_set(&timer_callbacks, g_plugin.hwndParent);
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160
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161 cfg_load(&config);
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162
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163 strcpy(activity.assets.large_image, "winamp-logo");
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164
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165 update_rich_presence_details();
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166
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167 return 0;
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168 }
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7
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169 #undef set_wnd_long
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0
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170
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171 void quit() {
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172 assert(!cfg_save(config));
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173 app.activities->clear_activity(app.activities, &app, update_activity_callback);
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174 }
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175
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1
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176 void conf() {
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4
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177 DialogBoxW(g_plugin.hDllInstance, (LPWSTR)DIALOG_CONFIG, g_plugin.hwndParent, (DLGPROC)cfg_win_proc);
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1
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178 }
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179
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7
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180 __declspec(dllexport) struct winamp_gpp* winampGetGeneralPurposePlugin() {
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0
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181 return &g_plugin;
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182 }
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