请问在SetWindowPos()的最后写的参数是:SWP_NOSIZE || SWP_SHOWWINDOW,什么意思?

ryrx 2007-07-27 09:48:37

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sean1221 2009-10-28

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说的真好，可量下不到MSDN

fatecui 2008-10-26

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没过四级的看不懂噢哈哈哈哈

ccgxg 2007-07-28

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同意 xiaoQ008

我来晚啦

xiaoQ008 2007-07-27

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BOOL SetWindowPos(
HWND hWnd, // handle to window
HWND hWndInsertAfter, // placement-order handle
int X, // horizontal position
int Y, // vertical position
int cx, // width
int cy, // height
UINT uFlags // window-positioning options
);
如果你把uFlags设置成SWP_NOSIZE 则窗口的大小将保持不变，无论你把cx和cy设置成多少
窗口的大小始终保持不变
至于SWP_SHOWWINDOW 显然是把窗口显示出来啦呵呵
和SWP_HIDEWINDOW隐藏窗口相反！
楼主多看看MSDN噢！
这个函数的意思是：The SetWindowPos function changes the size, position, and Z order of a child, pop-up, or top-level window.
过了4级英语的应该可以看懂的噢！

jerry4711 2007-07-27

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MSDN里的原话是这样的：

SWP_NOSIZE Retains the current size (ignores the cx and cy parameters).

SWP_SHOWWINDOW Displays the window.

建议楼主多看看MSDN哦！

WindAndSnow 2007-07-27

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the SetWindowPos function assumes that SWP_NOMOVE and SWP_NOSIZE are set if SWP_HIDEWINDOW or SWP_SHOWWINDOW was set. Thus, hiding and showing a window and changing its size and position are not possible in an atomic operation.

即使有其他窗口在最前面，也可以让本窗口置前的方法 // {{ force m_hWnd to topmost // 不管其他窗口是不是topmost，本例子都可以让此窗口置于最前端 HWND hForeWnd = ::GetForegroundWindow(); DWORD dwForeWndTreadId = ::GetWindowThreadProcessId(hForeWnd,NULL); DWORD dwCurWndTreandId = ::GetCurrentThreadId(); ::AttachThreadInput(dwCurWndTreandId, dwForeWndTreadId, TRUE); ::ShowWindow(m_hWnd, SW_SHOW); ::SetWindowPos(m_hWnd, HWND_TOPMOST,0,0,0,0,SWP_NOSIZE | SWP_NOMOVE); ::SetWindowPos(m_hWnd, HWND_NOTOPMOST,0,0,0,0,SWP_NOSIZE | SWP_NOMOVE); ::SetForegroundWindow(m_hWnd); ::AttachThreadInput(dwCurWndTreandId, dwForeWndTreadId, FALSE); // }}force m_hWnd to topmost

VB打开POS机钱箱,源码.使用VB的MSComm控件. Private Sub cmdExit_Click() Unload Me End Sub Private Sub cmdOpen_Click() Dim sTmp As String '打开钱箱命令 sTmp = Chr(2) & Chr(77) OpenBox sTmp End Sub Private Sub cmdOpen1_Click() Dim sTmp As String '打开钱箱命令chr(27)+chr(112)+chr(0)+chr(60)+chr(255) sTmp = Chr(27) & Chr(112) & Chr(0) & Chr(60) & Chr(255) OpenBox sTmp End Sub Private Sub Command1_Click() Dim sTmp As String sTmp = Chr(27) & Chr(57) & Chr(0) & Chr(60) & Chr(255) OpenBox sTmp End Sub Private Sub Form_Load() '显示最上层 SetWindowPos Me.hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE Or SWP_SHOWWINDOW Or SWP_NOMOVE Or SWP_NOSIZE End Sub Private Sub Form_Unload(Cancel As Integer) On Error Resume Next '显示最上层取消 SetWindowPos Me.hWnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE Or SWP_SHOWWINDOW Or SWP_NOMOVE Or SWP_NOSIZE End Sub Private Sub OpenBox(PDStr As String) On Error GoTo OpenErr '------------使用 COMM控件时--------------------- Dim Instring As String ' 使用 COM1。 Comm1.CommPort = 1 ' 9600 波特，无奇偶校验，8 位数据，一个停止位。 Comm1.Settings = "9600,N,8,1" ' 当输入占用时， ' 告诉控件读入整个缓冲区。 Comm1.InputLen = 0 ' 打开端口。 Comm1.PortOpen = True '------------------------------------------------ Comm1.Output = PDStr Comm1.PortOpen = False Exit Sub OpenErr: MsgBox "钱箱端口打开错误:" & Err.Description, vbCritical Exit Sub End Sub

Wince6下能调出WIFI设置界面的好东西。是单独的一个EXE文件。用代码打开他就行了。代码用这个就行了。void IDD_AllSetting1::RunExe(LPTSTR filename) { SHELLEXECUTEINFO ShExecInfo = {0}; ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO); ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS; ShExecInfo.hwnd = this->m_hWnd; ShExecInfo.lpVerb = L"open"; ShExecInfo.lpFile = filename; ShExecInfo.lpParameters = NULL; ShExecInfo.lpDirectory = NULL; ShExecInfo.nShow = SW_SHOW; ShExecInfo.hInstApp = NULL; ShellExecuteEx(&ShExecInfo); /*HWND hWnd; hWnd=ShExecInfo.hwnd;*/ /* CWnd *wnd; wnd->Attach(hWnd);*/ // WINUSERAPI::SetWindowPos(hWnd,HWND_TOPMOST,0,0,0,0,SWP_NOMOVE&SWP_NOSIZE&SWP_SHOWWINDOW); WaitForSingleObject(ShExecInfo.hProcess,INFINITE); }

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Diagnostics; using System.Runtime.InteropServices; namespace exe_test { public partial class Form1 : Form { public Form1() { InitializeComponent(); } Process process = null; IntPtr appWin; private string exeName = ""; [DllImport("user32.dll", EntryPoint = "GetWindowThreadProcessId", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)] private static extern long GetWindowThreadProcessId(long hWnd, long lpdwProcessId); [DllImport("user32.dll", SetLastError = true)] private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); [DllImport("user32.dll", SetLastError = true)] private static extern long SetParent(IntPtr hWndChild, IntPtr hWndNewParent); [DllImport("user32.dll", EntryPoint = "GetWindowLongA", SetLastError = true)] private static extern long GetWindowLong(IntPtr hwnd, int nIndex); [DllImport("user32.dll", EntryPoint = "SetWindowLongA", SetLastError = true)] private static extern long SetWindowLong(IntPtr hwnd, int nIndex, long dwNewLong); //private static extern int SetWindowLong(IntPtr hWnd, int nIndex, IntPtr dwNewLong); [DllImport("user32.dll", SetLastError = true)] private static extern long SetWindowPos(IntPtr hwnd, long hWndInsertAfter, long x, long y, long cx, long cy, long wFlags); [DllImport("user32.dll", SetLastError = true)] private static extern bool MoveWindow(IntPtr hwnd, int x, int y, int cx, int cy, bool repaint); [DllImport("user32.dll", EntryPoint = "PostMessageA", SetLastError = true)] private static extern bool PostMessage(IntPtr hwnd, uint Msg, long wParam, long lParam); private const int SWP_NOOWNERZORDER = 0x200; private const int SWP_NOREDRAW = 0x8; private const int SWP_NOZORDER = 0x4; private const int SWP_SHOWWINDOW = 0x0040; private const int WS_EX_MDICHILD = 0x40; private const int SWP_FRAMECHANGED = 0x20; private const int SWP_NOACTIVATE = 0x10; private const int SWP_ASYNCWINDOWPOS = 0x4000; private const int SWP_NOMOVE = 0x2; private const int SWP_NOSIZE = 0x1; private const int GWL_STYLE = (-16); private const int WS_VISIBLE = 0x10000000; private const int WM_CLOSE = 0x10; private const int WS_CHILD = 0x40000000; public string ExeName { get { return exeName; } set { exeName = value; } } private void button1_Click(object sender, EventArgs e) { this.exeName = @"calc.exe"; try { process = System.Diagnostics.Process.Start(this.exeName); process.WaitForInputIdle(); System.Threading.Thread.Sleep(150); appWin = process.MainWindowHandle; } catch (Exception ex) { MessageBox.Show(this, ex.Message, "Error"); } SetParent(appWin, this.splitContainer1.Panel2.Handle); MoveWindow(appWin, 0, 0, this.Width, this.Height, true); } } }

各位好，目前我写程序用到了通过一个access应用程序 A ，调用另一个Access应用程序 B，并打开B中的一个窗体显示所要查询到的信息。这些功能我都实现了 dim B as Access.Application B.OpenAccessProject("C:\pro\B.adp") B.DoCmd.OpenForm "from1", acNormal, , "编号='" & Me.编号 & "' ", , acWindowNormal B.Forms("form1").SetFocus Dim lpPoint As POINTAPI Call GetCursorPos(lpPoint) Call SetWindowPos(GetParent(B.Forms("form1").hwnd), HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE) Call ShowWindow(GetParent(B.Forms("form1").hwnd), SW_SHOWMAXIMIZED)

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