使用c语言和visual studio 2022 以及 Windows API 写出一个简易的音乐播放器并写出要连接哪个库和如何连接,给出c语言代码
时间: 2023-07-15 18:09:55 浏览: 178
以下是一个简单的音乐播放器的代码示例,使用Windows API和Winmm库:
```c
#include <windows.h>
#include <mmsystem.h>
#pragma comment(lib, "winmm.lib")
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASS wc = {0};
HWND hwnd;
MSG msg;
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.hInstance = hInstance;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.lpszClassName = "MusicPlayer";
RegisterClass(&wc);
hwnd = CreateWindow("MusicPlayer", "Music Player", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 400, 300, NULL, NULL, hInstance, NULL);
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static UINT uDeviceID;
static BOOL bPlaying;
switch (message)
{
case WM_CREATE:
{
MCI_OPEN_PARMS mciOpen;
mciOpen.lpstrDeviceType = "waveaudio";
mciOpen.lpstrElementName = "music.mp3";
mciSendCommand(NULL, MCI_OPEN, MCI_OPEN_TYPE | MCI_OPEN_ELEMENT, (DWORD_PTR)&mciOpen);
uDeviceID = mciOpen.wDeviceID;
bPlaying = FALSE;
}
break;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case ID_PLAY:
if (!bPlaying)
{
MCI_PLAY_PARMS mciPlay;
mciSendCommand(uDeviceID, MCI_PLAY, 0, (DWORD_PTR)&mciPlay);
bPlaying = TRUE;
}
break;
case ID_PAUSE:
if (bPlaying)
{
mciSendCommand(uDeviceID, MCI_PAUSE, 0, 0);
bPlaying = FALSE;
}
break;
case ID_STOP:
if (bPlaying)
{
mciSendCommand(uDeviceID, MCI_STOP, 0, 0);
MCI_SEEK_PARMS mciSeek;
mciSeek.dwTo = 0;
mciSendCommand(uDeviceID, MCI_SEEK, MCI_SEEK_TO_START, (DWORD_PTR)&mciSeek);
bPlaying = FALSE;
}
break;
case ID_EXIT:
PostQuitMessage(0);
break;
}
break;
case WM_DESTROY:
mciSendCommand(uDeviceID, MCI_CLOSE, 0, 0);
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
```
此代码使用`mciSendCommand`函数与Winmm库进行交互,该库已在代码中的`#pragma`语句中引用。其中,`MCI_OPEN_PARMS`结构体用于打开音频文件,`MCI_PLAY_PARMS`结构体用于播放音频,`MCI_SEEK_PARMS`结构体用于跳转到音频的开头。三个按钮(播放、暂停、停止)和一个退出按钮的ID在资源文件中定义。
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