现有句代码 hHwnd = capCreateCaptureWindowA(ref refDevice, 1342177280, 0, 0, 640, 480, panel1.Handle.ToInt32(), 0);
中间那个1342177280 是什么意思哦，始终搞不懂，在网上查了说在msdn上有，http://msdn.microsoft.com/zh-cn/library/ff700543，但看不懂啊，没有1342177280这个值啊
中间那个1342177280 是什么意思哦，始终搞不懂，在网上查了说在msdn上有，http://msdn.microsoft.com/zh-cn/library/ff700543，但看不懂啊，没有1342177280这个值啊
Window StylesThe following are the window styles. After the window has been created, these styles cannot be modified, except as noted.
Constant/value Description
WS_BORDER
0x00800000L The window has a thin-line border.
WS_CAPTION
0x00C00000L The window has a title bar (includes the WS_BORDER style).
WS_CHILD
0x40000000L The window is a child window. A window with this style cannot have a menu bar. This style cannot be used with the WS_POPUP style.
WS_CHILDWINDOW
0x40000000L Same as the WS_CHILD style.
WS_CLIPCHILDREN
0x02000000L Excludes the area occupied by child windows when drawing occurs within the parent window. This style is used when creating the parent window.
WS_CLIPSIBLINGS
0x04000000L Clips child windows relative to each other; that is, when a particular child window receives a WM_PAINT message, the WS_CLIPSIBLINGS style clips all other overlapping child windows out of the region of the child window to be updated. If WS_CLIPSIBLINGS is not specified and child windows overlap, it is possible, when drawing within the client area of a child window, to draw within the client area of a neighboring child window.
WS_DISABLED
0x08000000L The window is initially disabled. A disabled window cannot receive input from the user. To change this after a window has been created, use the EnableWindow function.
WS_DLGFRAME
0x00400000L The window has a border of a style typically used with dialog boxes. A window with this style cannot have a title bar.
WS_GROUP
0x00020000L The window is the first control of a group of controls. The group consists of this first control and all controls defined after it, up to the next control with the WS_GROUP style. The first control in each group usually has the WS_TABSTOP style so that the user can move from group to group. The user can subsequently change the keyboard focus from one control in the group to the next control in the group by using the direction keys.You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function.
WS_HSCROLL
0x00100000L The window has a horizontal scroll bar.
WS_ICONIC
0x20000000L The window is initially minimized. Same as the WS_MINIMIZE style.
WS_MAXIMIZE
0x01000000L The window is initially maximized.
WS_MAXIMIZEBOX
0x00010000L The window has a maximize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.
WS_MINIMIZE
0x20000000L The window is initially minimized. Same as the WS_ICONIC style.
WS_MINIMIZEBOX
0x00020000L The window has a minimize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.
WS_OVERLAPPED
0x00000000L The window is an overlapped window. An overlapped window has a title bar and a border. Same as the WS_TILED style.
WS_OVERLAPPEDWINDOW
(WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX) The window is an overlapped window. Same as the WS_TILEDWINDOW style.
WS_POPUP
0x80000000L The windows is a pop-up window. This style cannot be used with the WS_CHILD style.
WS_POPUPWINDOW
(WS_POPUP | WS_BORDER | WS_SYSMENU) The window is a pop-up window. The WS_CAPTION and WS_POPUPWINDOW styles must be combined to make the window menu visible.
WS_SIZEBOX
0x00040000L The window has a sizing border. Same as the WS_THICKFRAME style.
WS_SYSMENU
0x00080000L The window has a window menu on its title bar. The WS_CAPTION style must also be specified.
WS_TABSTOP
0x00010000L The window is a control that can receive the keyboard focus when the user presses the TAB key. Pressing the TAB key changes the keyboard focus to the next control with the WS_TABSTOP style.You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function. For user-created windows and modeless dialogs to work with tab stops, alter the message loop to call the IsDialogMessage function.
WS_THICKFRAME
0x00040000L The window has a sizing border. Same as the WS_SIZEBOX style.
WS_TILED
0x00000000L The window is an overlapped window. An overlapped window has a title bar and a border. Same as the WS_OVERLAPPED style.
WS_TILEDWINDOW
(WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX) The window is an overlapped window. Same as the WS_OVERLAPPEDWINDOW style.
WS_VISIBLE
0x10000000L The window is initially visible.This style can be turned on and off by using the ShowWindow or SetWindowPos function.
WS_VSCROLL
0x00200000L The window has a vertical scroll bar.
private void CloseWebcam()
{
if (hHwnd > 0)
{
SendMessage(hHwnd, 0x40b, 0, 0); //WM_CAP_DRIVER_DISCONNECT，断开驱动程序连接
DestroyWindow(hHwnd);
}
}
http://www.vckbase.com/document/viewdoc/?id=1036
private void CloseWebcam()
{
if (hHwnd > 0)
{
SendMessage(hHwnd, 0x40b, 0, 0); //WM_CAP_DRIVER_DISCONNECT，断开驱动程序连接
DestroyWindow(hHwnd);
}
}
我也同样遇到这个问题呀，求高人指点！
DestroyWindow(this.hHwnd);