用C代碼

Question

當我用Google搜索找到改變窗口的風格我能找到「C」的代碼語言 我怎麼能在我的C＃應用​​程序中使用下面的代碼片段的方式，這樣我可以隱藏標題外部應用程序？我沒有用「C」之前..

//Finds a window by class name 
[DllImport("USER32.DLL")] 
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName); 

//Sets a window to be a child window of another window 
[DllImport("USER32.DLL")] 
public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent); 

//Sets window attributes 
[DllImport("USER32.DLL")] 
public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong); 

//Gets window attributes 
[DllImport("USER32.DLL")] 
public static extern int GetWindowLong(IntPtr hWnd, int nIndex); 

//assorted constants needed 
public static int GWL_STYLE = -16; 
public static int WS_CHILD = 0x40000000; //child window 
public static int WS_BORDER = 0x00800000; //window with border 
public static int WS_DLGFRAME = 0x00400000; //window with double border but no title 
public static int WS_CAPTION= WS_BORDER | WS_DLGFRAME; //window with a title bar 

/* 
This function sets the parent of the window with class 
ClassClass to the form/control the method is in. 
*/ 
public void Reparent() 
{ 
//get handle of parent form (.net property) 
IntPtr par = this.Handle; 
//get handle of child form (win32) 
IntPtr child = FindWindow("ClassClass", null); 
//set parent of child form 
SetParent(child, par); 
//get current window style of child form 
int style = GetWindowLong(child, GWL_STYLE); 

//take current window style and remove WS_CAPTION from it 
SetWindowLong(child, GWL_STYLE, (style & ~WS_CAPTION)); 
} 

Answer 1

我不是P/Invoke exprert，但看着：http://www.pinvoke.net/default.aspx/coredll/SetWindowLong.html我想你可以調用SetWindowLong來改變窗口樣式而不用重新打開。

對於窗口搜索，你可以試試這個：

Process[] processes = Process.GetProcessesByName("notepad.exe"); 
foreach (Process p in processes) 
{ 
    IntPtr pFoundWindow = p.MainWindowHandle; 
    // now you have the window handle 
} 

Answer 2

您發佈的片段是在C＃中，而不是在C.你應該能夠做到這代碼添加到您的形式和調用Reparent方法。 （假設你正在使用WinForms）

注意，Reparent方法不僅會改變窗口的風格，同時也將嘗試父窗口的窗口的子窗口。