Winamp не может быть закрыт с моим плагином, написанным на C ++ / WinApi

Я написал плагин Winamp с WinApi.

Когда я закрываю Winamp, GUI (как окна Winamp, так и окна моего плагина) исчезает … но я все еще вижу Winamp.exe в Windows TaskManager.

После удаления gen_mood.dll (мой файл плагина) из каталога плагинов Winamp, все в порядке — я могу правильно закрыть Winamp.

Вот мой минимальный код. Может кто-нибудь сказать мне, что не так? Я использую Visual Studio 2013 и Winamp 5.666.

gen_mood.cpp:

#include "stdafx.h"#include <windows.h>
#include "gen_mood.h"
// these are callback functions/events which will be called by Winamp
int init(void); void config(void); void quit(void); void makeSetlist();
using namespace std;// this structure contains plugin information, version, name... // GPPHDR_VER is the version of the winampGeneralPurposePlugin (GPP) structure
winampGeneralPurposePlugin plugin = {

GPPHDR_VER,  // version of the plugin, defined in "gen_mood.h"PLUGIN_NAME, // name/title of the plugin, defined in "gen_mood.h"init,        // function name which will be executed on init event
config,      // function name which will be executed on config event
quit,        // function name which will be executed on quit event
0,           // handle to Winamp main window, loaded by winamp when this dll is loaded
0            // hinstance to this dll, loaded by winamp when this dll is loaded

};

// event functions follow
MSG Komunikat;
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
HWND hwnd;
int init() {

HFONT hNormalFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
LPCWSTR ClassName = L"Class name";
WNDCLASSEX wc;

wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = plugin.hDllInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.lpszMenuName = NULL;
wc.lpszClassName = ClassName;
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

RegisterClassEx(&wc);
hwnd = CreateWindowEx(WS_EX_CLIENTEDGE, ClassName, L"Name", WS_OVERLAPPED, 100, 100, 100, 100, plugin.hwndParent, NULL, plugin.hDllInstance, NULL);
ShowWindow(hwnd, SW_SHOW);
UpdateWindow(hwnd);

while (GetMessage(&Komunikat, NULL, 0, 0))
{
TranslateMessage(&Komunikat);
DispatchMessage(&Komunikat);
}

return 0;
}

void config() {}
void quit() {}

// This is an export function called by winamp which returns this plugin info. // We wrap the code in 'extern "C"' to ensure the export isn't mangled if used in a CPP file.
extern "C" __declspec(dllexport) winampGeneralPurposePlugin * winampGetGeneralPurposePlugin() {

return &plugin;

}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
return 0;
}

gen_mood.h:

#ifndef gen_mood_h
#define gen_mood_h
#include <windows.h>

// plugin version (don't touch this)
#define GPPHDR_VER 0x10

// plugin name/title (change this to something you like)
#define PLUGIN_NAME "Mood"

// main structure with plugin information, version, name...
typedef struct {

int version;                   // version of the plugin structure
char *description;             // name/title of the plugin
int(*init)();                 // function which will be executed on init event
void(*config)();              // function which will be executed on config event
void(*quit)();                // function which will be executed on quit event
HWND hwndParent;               // hwnd of the Winamp client main window (stored by Winamp when dll is loaded)
HINSTANCE hDllInstance;        // hinstance of this plugin DLL. (stored by Winamp when dll is loaded)

} winampGeneralPurposePlugin;#endif //gen_mood_h