CreateParams.Style 속성
정의
중요
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창 스타일 값의 비트 조합을 가져오거나 설정합니다.
public:
property int Style { int get(); void set(int value); };
public int Style { get; set; }
member this.Style : int with get, set
Public Property Style As Integer
속성 값
창 스타일 값의 비트 조합입니다.
예제
다음 코드 예제에서는 한 Button 라는 클래스를 파생 MyIconButton
이미지 대신 아이콘을 표시 하려면 단추에 대해 필요한 구현을 제공 합니다. CreateParams 속성을 확장 및에 값을 추가 합니다 Style 표시할 단추를 발생 시킨 속성입니다는 Icon 아닌 Image합니다.
#include <windows.h>
#using <System.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>
using namespace System;
using namespace System::Drawing;
using namespace System::Windows::Forms;
using namespace System::Runtime::InteropServices;
using namespace System::Diagnostics;
using namespace System::IO;
public ref class MyIconButton: public Button
{
private:
Icon^ icon;
public:
MyIconButton()
{
// Set the button's FlatStyle property.
FlatStyle = ::FlatStyle::System;
}
MyIconButton( Icon^ ButtonIcon )
{
// Set the button's FlatStyle property.
FlatStyle = ::FlatStyle::System;
// Assign the icon to the private field.
this->icon = ButtonIcon;
// Size the button to 4 pixels larger than the icon.
this->Height = icon->Height + 4;
this->Width = icon->Width + 4;
}
protected:
property System::Windows::Forms::CreateParams^ CreateParams
{
virtual System::Windows::Forms::CreateParams^ get() override
{
// Extend the CreateParams property of the Button class.
System::Windows::Forms::CreateParams^ cp = __super::CreateParams;
// Update the button Style.
cp->Style |= 0x00000040; // BS_ICON value
return cp;
}
}
public:
property System::Drawing::Icon^ Icon
{
System::Drawing::Icon^ get()
{
return icon;
}
void set(System::Drawing::Icon^ value)
{
icon = value;
UpdateIcon();
this->Height = icon->Height + 4;
this->Width = icon->Width + 4;
}
}
protected:
virtual void OnHandleCreated( EventArgs^ e ) override
{
Button::OnHandleCreated( e );
// Update the icon on the button if there is currently an icon assigned to the icon field.
if ( icon != nullptr )
{
UpdateIcon();
}
}
private:
void UpdateIcon()
{
IntPtr iconHandle = IntPtr::Zero;
// Get the icon's handle.
if ( icon != nullptr )
{
iconHandle = icon->Handle;
}
// Send Windows the message to update the button.
SendMessage( (HWND)Handle.ToPointer(), 0x00F7, 1, (int)iconHandle );
/*BM_SETIMAGE value*/
/*IMAGE_ICON value*/
}
public:
[DllImport("user32.dll")]
static LRESULT SendMessage(HWND hWnd, int msg, int wParam, int lParam);
};
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.IO;
public class MyIconButton : Button
{
private Icon icon;
public MyIconButton()
{
// Set the button's FlatStyle property.
FlatStyle = FlatStyle.System;
}
public MyIconButton(Icon ButtonIcon)
: this()
{
// Assign the icon to the private field.
this.icon = ButtonIcon;
// Size the button to 4 pixels larger than the icon.
this.Height = icon.Height + 4;
this.Width = icon.Width + 4;
}
protected override CreateParams CreateParams
{
get
{
// Extend the CreateParams property of the Button class.
CreateParams cp = base.CreateParams;
// Update the button Style.
cp.Style |= 0x00000040; // BS_ICON value
return cp;
}
}
public Icon Icon
{
get
{
return icon;
}
set
{
icon = value;
UpdateIcon();
// Size the button to 4 pixels larger than the icon.
this.Height = icon.Height + 4;
this.Width = icon.Width + 4;
}
}
protected override void OnHandleCreated(EventArgs e)
{
base.OnHandleCreated(e);
// Update the icon on the button if there is currently an icon assigned to the icon field.
if (icon != null)
{
UpdateIcon();
}
}
private void UpdateIcon()
{
IntPtr iconHandle = IntPtr.Zero;
// Get the icon's handle.
if (icon != null)
{
iconHandle = icon.Handle;
}
// Send Windows the message to update the button.
SendMessage(Handle, 0x00F7 /*BM_SETIMAGE value*/, 1 /*IMAGE_ICON value*/, (int)iconHandle);
}
// Import the SendMessage method of the User32 DLL.
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam, int lParam);
}
Imports System.Windows.Forms
Imports System.Drawing
Imports System.IO
Imports System.Security.Permissions
Public Class MyIconButton
Inherits Button
Private ButtonIcon As Icon
Public Sub New()
MyBase.New()
' Set the button's FlatStyle property.
Me.FlatStyle = System.Windows.Forms.FlatStyle.System
End Sub
Public Sub New(ByVal Icon As Icon)
MyBase.New()
' Assign the icon to the private field.
Me.ButtonIcon = Icon
' Size the button to 4 pixels larger than the icon.
Me.Height = ButtonIcon.Height + 4
Me.Width = ButtonIcon.Width + 4
End Sub
Protected Overrides ReadOnly Property CreateParams() As System.Windows.Forms.CreateParams
Get
Dim SecPerm As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode)
SecPerm.Demand()
' Extend the CreateParams property of the Button class.
Dim cp As System.Windows.Forms.CreateParams = MyBase.CreateParams
' Update the button Style.
cp.Style = cp.Style Or &H40 ' BS_ICON value
Return cp
End Get
End Property
Public Property Icon() As Icon
Get
Return ButtonIcon
End Get
Set(ByVal Value As Icon)
ButtonIcon = Value
UpdateIcon()
' Size the button to 4 pixels larger than the icon.
Me.Height = ButtonIcon.Height + 4
Me.Width = ButtonIcon.Width + 4
End Set
End Property
<SecurityPermission(SecurityAction.Demand, UnmanagedCode := True)> _
Protected Overrides Sub OnHandleCreated(ByVal e As EventArgs)
MyBase.OnHandleCreated(e)
' Update the icon on the button if there is currently an icon assigned to the icon field.
If Me.ButtonIcon IsNot Nothing Then
UpdateIcon()
End If
End Sub
Private Sub UpdateIcon()
Dim IconHandle As IntPtr = IntPtr.Zero
' Get the icon's handle.
If Me.Icon IsNot Nothing Then
IconHandle = Icon.Handle
End If
' Send Windows the message to update the button.
' BM_SETIMAGE (second parameter) and IMAGE_ICON (third parameter).
SendMessage(Handle, &HF7, &H1, IconHandle.ToInt32())
End Sub
' Declare the SendMessage function.
Declare Auto Function SendMessage Lib "user32" (ByVal hWnd As IntPtr, _
ByVal msg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As IntPtr
End Class
설명
Style 속성을 초기 상태로 컨트롤의 모양을 제어 합니다.
컨트롤 매개 변수를 만드는 방법에 대한 자세한 내용은 CreateWindow 매크로, CreateWindowEx 함수 및 CREATESTRUCT 구조를 참조하세요.
참고
상수를 설정 하는 데 사용 합니다 Style, ExStyle, 및 ClassStyle Winuser.h 헤더 파일에 정의 된 속성입니다. 이 파일은 Platform SDK 또는 Visual Studio에서 설치 합니다.