默认声音设备的注册表地址 注册表windowsapiC# 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 参考:http://stackoverflow.com/questions/6179335/change-default-audio-device-on-windows-7 都是说的C++的~~有没有C#的用DllImport调用API 不好意思,您的网站,也看不懂,现在我的思路是,直接弹出声音 窗体,获得其句柄,然后查找子窗体,附一张图 问题来了,我想让第一行获得焦点,发了2条 SendMessage 没办法实现,无效果。 希望各位朋友帮忙解决下,我在网上找了很多资料, 都没办法实现,系统win7,同时有了答案也为以后的兄弟解决问题更快一些。 以下是截图中常量 public const int LVM_FIRST = 0x1000; public const uint LVM_GETITEMCOUNT = LVM_FIRST + 4; public int LVIF_TEXT = 0x0001; public const uint LVM_GETITEMW = LVM_FIRST + 75; public const uint LVM_SETSELECTEDCOLUMN = (LVM_FIRST + 140); public const uint PROCESS_VM_OPERATION = 0x0008; public const uint PROCESS_VM_READ = 0x0010; public const uint PROCESS_VM_WRITE = 0x0020; public const uint MEM_COMMIT = 0x1000; public const uint MEM_RELEASE = 0x8000; public const uint MEM_RESERVE = 0x2000; public const uint PAGE_READWRITE = 4; /// <summary> /// 按下鼠标左键 /// </summary> public const uint WM_LBUTTONDOWN = 0x0201; /// <summary> /// 释放鼠标左键 /// </summary> public const uint WM_LBUTTONUP = 0x0202; public const uint WM_KILLFOCUS = 0x0008; 结贴 ,最后用了这种方法, if (vText == "扬声器") { keybd_event(40, 0, 0, 0); //发送down 键盘 keybd_event(40, 0, 0x2, 0); Thread.Sleep(200); //因为alt+p 无法执行,所以拿alt+p执行。已ok keybd_event(18, 0, 0, 0); keybd_event(80, 0, 0, 0); Thread.Sleep(100); keybd_event(80, 0, 0x2, 0); keybd_event(18, 0, 0x2, 0); }虽然不是很好,起码功能出来了,共享给大家。~~ datagrid中如何实现翻页,或滚条呀 关于ASP的一些问题 新手求助:帮忙看看这个SQL语句该怎么写 怎样从数据库中读取XML并用GRIDVIEW显示出来 动态生成控件的一个小问题 请问什么是MDI容器,它与一般的WINDOWS窗体有什么区别,用它有什么好处,什么时候用 在A页面如何写一个事件,从而判断B页面是可以直接访问的还是需要一个用户认证的呢??? C#.net 2005 如何判断用户输入的公式是否正确? 如何区分一台主机两个USB键盘输入的内容?求高手 存储过程 C# Socket异步连接断开重连问题 wpf DataGridComboBoxColumn数据绑定问题,跪求大神帮忙
都是说的C++的~~有没有C#的用DllImport调用API
public const int LVM_FIRST = 0x1000;
public const uint LVM_GETITEMCOUNT = LVM_FIRST + 4;
public int LVIF_TEXT = 0x0001;
public const uint LVM_GETITEMW = LVM_FIRST + 75;
public const uint LVM_SETSELECTEDCOLUMN = (LVM_FIRST + 140); public const uint PROCESS_VM_OPERATION = 0x0008;
public const uint PROCESS_VM_READ = 0x0010;
public const uint PROCESS_VM_WRITE = 0x0020;
public const uint MEM_COMMIT = 0x1000;
public const uint MEM_RELEASE = 0x8000; public const uint MEM_RESERVE = 0x2000;
public const uint PAGE_READWRITE = 4;
/// <summary>
/// 按下鼠标左键
/// </summary>
public const uint WM_LBUTTONDOWN = 0x0201;
/// <summary>
/// 释放鼠标左键
/// </summary>
public const uint WM_LBUTTONUP = 0x0202; public const uint WM_KILLFOCUS = 0x0008;
{
keybd_event(40, 0, 0, 0); //发送down 键盘
keybd_event(40, 0, 0x2, 0); Thread.Sleep(200); //因为alt+p 无法执行,所以拿alt+p执行。已ok
keybd_event(18, 0, 0, 0);
keybd_event(80, 0, 0, 0);
Thread.Sleep(100);
keybd_event(80, 0, 0x2, 0);
keybd_event(18, 0, 0x2, 0);
}虽然不是很好,起码功能出来了,共享给大家。~~