搜集一些控件底层参数控制的代码

￡神魔★判官ぃ 2021-12-22 15:40 315阅读 0赞

private const int CS\_DROPSHADOW = 0x00020000;  
/// <summary>  
/// 窗口显示阴影  
/// </summary>  
protected override CreateParams CreateParams  
\{  
get  
\{  
CreateParams cp = base.CreateParams;  
cp.ClassStyle |= CS\_DROPSHADOW;  
return cp;  
\}  
\}

private const int CP\_NOCLOSE\_BUTTON = 0x200;  
/// <summary>  
/// 禁止关闭按钮，Alt F4也无效  
/// </summary>  
protected override CreateParams CreateParams  
\{  
get  
\{  
CreateParams myCp = base.CreateParams;  
myCp.ClassStyle = myCp.ClassStyle | CP\_NOCLOSE\_BUTTON;  
return myCp;  
\}  
\}

protected override CreateParams CreateParams  
\{  
get  
\{  
int WS\_EX\_TOOLWINDOW = 0x80;  
CreateParams CP = base.CreateParams;

CP.ExStyle = CP.ExStyle | WS\_EX\_TOOLWINDOW;  
return CP;  
\}  
\}

protected override CreateParams CreateParams  
\{  
get  
\{  
const int WS\_EX\_APPWINDOW = 0x00040000;  
const int WS\_EX\_TOOLWINDOW = 0x00000080;

CreateParams result = base.CreateParams;  
result.ExStyle = result.ExStyle & (~WS\_EX\_APPWINDOW);  
result.ExStyle = result.ExStyle | WS\_EX\_TOOLWINDOW;  
return result;  
\}  
\}

/// <summary>  
/// 设为没有焦点  
/// </summary>  
protected override CreateParams CreateParams  
\{  
get  
\{  
CreateParams cp = base.CreateParams;  
cp.ExStyle |= (int)0x08000000L; //把窗体设置成WS\_EX\_NOACTIVATE样式  
return cp;  
\}  
\}

//使控制不接受焦点--------------------  
\[System.Runtime.InteropServices.DllImport("user32.dll")\]  
private extern static IntPtr SetActiveWindow(IntPtr handle);

private const int WM\_ACTIVATE = 0x006;  
private const int WM\_ACTIVATEAPP = 0x01C;  
private const int WM\_NCACTIVATE = 0x086;  
private const int WA\_INACTIVE = 0;  
private const int WM\_MOUSEACTIVATE = 0x21;  
private const int MA\_NOACTIVATE = 3;  
  
protected override void WndProc(ref Message m)  
\{  
if (m.Msg == WM\_MOUSEACTIVATE)  
\{  
m.Result = new IntPtr(MA\_NOACTIVATE);  
return;  
\}  
else if (m.Msg == WM\_NCACTIVATE)  
\{  
if (((int)m.WParam & 0xFFFF) != WA\_INACTIVE)  
\{  
if (m.LParam != IntPtr.Zero)  
\{  
SetActiveWindow(m.LParam);  
\}  
else  
\{  
SetActiveWindow(IntPtr.Zero);  
\}  
\}  
\}  
base.WndProc(ref m);  
\}  
//--------------------------------------------------  
publicclass RichEdit50 : RichTextBox  
\{  
\[DllImport("kernel32.dll", CharSet = CharSet.Auto)\]  
staticextern IntPtr LoadLibrary(string lpFileName);  
  
protectedoverride CreateParams CreateParams  
\{  
get  
\{  
CreateParams prams =base.CreateParams;  
if (LoadLibrary("msftedit.dll") != IntPtr.Zero)  
\{  
prams.ExStyle |=0x020; // transparent   
 prams.ClassName ="RICHEDIT50W";  
\}  
return prams;  
\}  
\}  
\}  
public class MyTextBox : TextBox  
\{  
public MyTextBox()  
\{  
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);  
\}  
\}

转载于:https://www.cnblogs.com/Yjianyong/archive/2010/01/14/1648024.html