Re: how to resize child window?

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• In reply to: Jason Doucette: "Re: how to resize child window?"
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Date: Thu, 14 Oct 2004 08:18:52 +0200

bingo

"Jason Doucette" <www.jasondoucette.com> wrote in message
news:eTyW5#RsEHA.2784@TK2MSFTNGP09.phx.gbl...
> I am not sure what the problem is, as I don't use C#, so I haven't looked
at
> your code. I do know that when you call the Win32 API function
MoveWindow,
> this does not change the focus of any window. So, resizing the child
window
> when the parent resizes should be fine...
>
> ---------
> Jason Doucette
> http://www.jasondoucette.com/
>
>
>
> "assaf" <assafwo@hotmail.com> wrote in message
> news:e66VKFRsEHA.1216@TK2MSFTNGP10.phx.gbl...
> > hi all
> >
> > i set my window to be the parent of a 'Notepad' window.
> > when the parent window's size is changed,
> > i set the child winodow size as well.
> >
> > this causes the parent to lose focus,
> > and the resizing stops after just changing a bit.
> >
> > what can i do in order to allow my window resizing
> > to succeed?
> >
> >
> > assaf
> >
> >
> > here is my C#.NET code:
> >
> >
> > using System;
> > using System.Runtime.InteropServices;
> > using System.Drawing;
> > using System.Collections;
> > using System.ComponentModel;
> > using System.Windows.Forms;
> > using System.Data;
> >
> > namespace Notepad
> > {
> > /// <summary>
> > /// Summary description for Form1.
> > /// </summary>
> > public class Form1 : System.Windows.Forms.Form
> > {
> > private System.Windows.Forms.CheckBox checkBoxParent;
> > private System.Windows.Forms.Button buttonFindWindow;
> > private System.Windows.Forms.Label labelHwnd;
> > /// <summary>
> > /// Required designer variable.
> > /// </summary>
> > private System.ComponentModel.Container components = null;
> >
> > public Form1()
> > {
> > //
> > // Required for Windows Form Designer support
> > //
> > InitializeComponent();
> >
> > //
> > // TODO: Add any constructor code after InitializeComponent call
> > //
> > }
> >
> > /// <summary>
> > /// Clean up any resources being used.
> > /// </summary>
> > protected override void Dispose( bool disposing )
> > {
> > if( disposing )
> > {
> > if (components != null)
> > {
> > components.Dispose();
> > }
> > }
> > base.Dispose( disposing );
> > }
> >
> > #region Windows Form Designer generated code
> > /// <summary>
> > /// Required method for Designer support - do not modify
> > /// the contents of this method with the code editor.
> > /// </summary>
> > private void InitializeComponent()
> > {
> > this.checkBoxParent = new System.Windows.Forms.CheckBox();
> > this.buttonFindWindow = new System.Windows.Forms.Button();
> > this.labelHwnd = new System.Windows.Forms.Label();
> > this.SuspendLayout();
> > //
> > // checkBoxParent
> > //
> > this.checkBoxParent.Location = new System.Drawing.Point(8, 40);
> > this.checkBoxParent.Name = "checkBoxParent";
> > this.checkBoxParent.TabIndex = 0;
> > this.checkBoxParent.Text = "&Parent";
> > this.checkBoxParent.CheckedChanged += new
> > System.EventHandler(this.checkBoxParent_CheckedChanged);
> > //
> > // buttonFindWindow
> > //
> > this.buttonFindWindow.Location = new System.Drawing.Point(8, 8);
> > this.buttonFindWindow.Name = "buttonFindWindow";
> > this.buttonFindWindow.Size = new System.Drawing.Size(128, 23);
> > this.buttonFindWindow.TabIndex = 1;
> > this.buttonFindWindow.Text = "&Find Window";
> > this.buttonFindWindow.Click += new
> > System.EventHandler(this.buttonFindWindow_Click);
> > //
> > // labelHwnd
> > //
> > this.labelHwnd.Location = new System.Drawing.Point(144, 8);
> > this.labelHwnd.Name = "labelHwnd";
> > this.labelHwnd.TabIndex = 2;
> > this.labelHwnd.Text = "0";
> > //
> > // Form1
> > //
> > this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
> > this.ClientSize = new System.Drawing.Size(292, 273);
> > this.Controls.Add(this.labelHwnd);
> > this.Controls.Add(this.buttonFindWindow);
> > this.Controls.Add(this.checkBoxParent);
> > this.Name = "Form1";
> > this.Text = "Form1";
> > this.Resize += new System.EventHandler(this.Form1_Resize);
> > this.ResumeLayout(false);
> >
> > }
> > #endregion
> >
> > /// <summary>
> > /// The main entry point for the application.
> > /// </summary>
> > [STAThread]
> > static void Main()
> > {
> > Application.Run(new Form1());
> > }
> >
> > [DllImport("user32")]
> > private static extern
> > int FindWindow(string lpClassName, int lpWindowName);
> >
> > [DllImport("user32")]
> > private static extern
> > int SetParent(int hWndChild, IntPtr hWndNewParent);
> >
> > [DllImport("user32")]
> > private static extern
> > bool SetWindowPos(
> > int hWnd,
> > int hWndInsertAfter,
> > int X,
> > int Y,
> > int cx,
> > int cy,
> > uint uFlags
> > );
> >
> > private void checkBoxParent_CheckedChanged(object sender,
> > System.EventArgs
> > e)
> > {
> > if(this.checkBoxParent.Checked == true)
> > {
> > int j = SetParent(this._hwnd, this.Handle);
> > }
> > else
> > {
> > int j = SetParent(this._hwnd, IntPtr.Zero);
> > }
> > }
> >
> > int _hwnd;
> >
> > private void buttonFindWindow_Click(object sender, System.EventArgs e)
> > {
> > this._hwnd = FindWindow("Notepad", 0);
> > this.labelHwnd.Text = this._hwnd.ToString();
> > }
> >
> > private void Form1_Resize(object sender, System.EventArgs e)
> > {
> > bool b = SetWindowPos(this._hwnd, 0, 0, 0, this.Width, this.Height,
0);
> > if(b == false)
> > {
> > int hr = Marshal.GetHRForLastWin32Error();
> > Marshal.ThrowExceptionForHR(hr);
> > }
> > this.Focus();
> > }
> > }
> > }
> >
> >
>
>

• Previous message: zhangjign: "monochrome bitmap pen"
• In reply to: Jason Doucette: "Re: how to resize child window?"
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