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One, mainframe add a record whether the full-screen state of the variable bool M_bfullscreen.Second, the toolbar to add a button for full-screen operation, the response event function written in mainframe.Third, in the response function, add the following code:void Cmainframe::onfullscreen (){if (!m_bfullscreen){This->modifystyle (ws_thickframe| Ws_caption,null);This->movewindow (CRect (0,0,::getsystemmetrics (Sm_cxscreen),:: GetSystemMetrics (Sm_cyscreen)), TRUE);This->showwindow (sw_showmaximi

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Unable to access the disposed object Object name: "Icon" In WinForm development, the following exception often occurs when multiple MDI forms are opened and the form is closed in a maximized state: System.objectdisposedexception: Unable to access the disposed object. Object name: "Icon". In System.Drawing.Icon.get_Handle () In System.Drawing.Icon.get_Size () In System.Drawing.Icon.ToBitmap () In System.Windows.Forms.MdiControlStrip.GetTargetWindowIcon

"When a child window is opened in the MDI mode, the display cannot be Maximized. It is clear that the WindowState of the child window is set to Maximized ?", I believe many people will encounter this problem. Set the following method to maximize the MDI subform: 1. Set IsMdiContainer of the parent form to True;2. Set the WindowState of the subform to Normal;3. In the parent form, use the following method t

Tangram commercial version Preview (2): tabbed MDI Interface The purpose of the commercial version of Tangram is to allow users to directly obtain a highly customizable commercial software framework without writing program code using XML descriptions. In fact, some code in the software framework is basically unrelated to the functions of the software. Just like a high-end office building, it can only improve your identity. Therefore, A descriptive an

Use the MDI form in Delphi. The project file is as follows: Application. initialize;Application. createform (tmainform, mainform );Application. createform (taboutbox, aboutbox );Aboutbox. show;Aboutbox. Hide;Mainform. showmodal;Application. Run; If the order of creation of aboutform and mainform is reversed, opening an mdichild form in the main form will result in the following error. Can not create form, no

It is very easy to make the MDI form in VB. This is not easy in C #, but it is very convenient. First, add a form in C #, name it mdimain, and set ismdicontainer to true, so that the MDI main form is created. Then add a new form named mdichild. Run nowProgramOnly the mdimain form is running. Because we didn't write anythingCodeOf course, the second form cannot appear. Add this code now. Add a menu on the

In my "MDI form mutual call 1" article, I have explained how to make the MDI windows call each other. However, the method used in the previous article uses the basic features of the "reference type". In the following method, I use the class definition to complete the above functions. In general, I do not approve of your use of the second method. The second method mentioned here is just to be discussed with

Reproduced to: http://blog.csdn.net/henreash/article/details/7618414 Qt provides the mdiarea control to easily implement standard MDI forms, but it is not convenient to use. it seems that it is better to switch the subform through the tab like the 360 browser. click the menu item or the button on the toolbar to create a new tab and generate a subform. click the cross sign on the tab to close the tab and release the child form object. to implement this

Etienne, This has no effect since the scrollbars do not belong to the MDI frameWindow itself, they belong to the client window, which is not a DelphiForm. Which means one has to attack the problem on the API level.Since this question has come up so frequently in recent days I haveModified a sample based on the stock MDI project to include thisFeature. The salient parts are quoted below. Open the main forms

How to solve the problem of merging the title bar of the child form and the menu bar of the main form by maximizing the child form of WinForm MDi, winformmdi Write the following code in the ItemAdded event in the main form menu bar: * MsMain is the Name attribute value in the menu bar of my main form. // The private void msMain_ItemAdded (object sender, ToolStripItemEventArgs e) {if (e. item. text. length = 0) {e. item. visible = false;} else {e. item

Recently, a netizen asked me this question, I went online search, the result is very disappointed, there are several in the CSDN on the help post, see finally did not find a clear answer. Here I found on the Internet API function SetParent (), and the online error has been modified, and gave a simple example code. Readers can test themselves:Public Class Form1 ' octopus brother, qq:3107073263 Group: 309816713 ' If you have any questions or good suggestions please contact me, everyone

recently working on a gadget and discovering a problem that was not encountered in the past to do the project: The Subform is blocked by the control of the parent form! As shown in the following:The subform's topmost has been set to true, and the parent form's controls have been placed on the ground floor, but the result is still pessimistic! Helpless, Google a bit, tried a lot of methods, the results found a simple solution to the problem, the code is as follows:Using System.Runtime.InteropSer

(The effect is not very good, for reference only)First: Create a new class win32native, introducing the Win32 external function.The code is as follows:public class Win32native{[System.Runtime.InteropServices.DllImport ("user32.dll", EntryPoint = "SetParent")]public extern static IntPtr SetParent (IntPtr childptr, IntPtr parentptr);}Second: Create a new two form:Window1.xamlWindow2.xamlThird: Add references in Window1.xaml.csUsing System.Windows.Interop;IV: Put a Button1 in the Window1 formThe ev

Recently I am working on a winform application.ProgramWhen the MDI form is used, a lot of trouble is encountered. One of them is how to solve the problem of not letting the child form be instantiated multiple times. I have searched the internet for a long time and found many solutions. Here I will introduce some simple methods. In fact, this is the singleton mode in the classic 23 design patterns. The following uses C # To implement it: Suppose

If the main window is an MDI window, you only need to set the ismdicontainer attribute to true. Add the following to the pop-up form:CodeThe child window can be nested in the parent form. Private Void Showform1_cick ( Object Sender, eventargs E) { Form1 childform = New Form1 (); Childform. mdiparent = This ; Childform. Show (); } If the splitcontainer container control is added in the main window, the child form cannot be displayed in the pa

This article from: http://www.cnblogs.com/xiaofengfeng/archive/2011/09/16/2178496.html One component in the DevExpress. net package is xtraTabbedMdiManager. It can display the MDI window as a TabControl style, which is very practical. Unfortunately, disabling tabs (I .e. sub-MdiChild) cannot be achieved by double-clicking. This is a bit difficult for friends who are used to software such as aoyou. View the xtraTabbedMdiManager events, such

1. Main controls usedTreeview,Splitter, set the parent windowIsmdicontainerSetTrue. Child form startposition = manual, Effect Use splitter to divide the parent window into two parts, with Treeview on the left and child forms on the right. Open subwindowCode Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Form childform = New Form ();Childform. mdiparent = This ;Childform. Text = " Window " +

In SDI and MDI of MFC, you want to get CXXXView from your CXXXApp (of course it inherits from CWinApp) (of course it inherits from CView) the view pointer is not an easy task. The following describes how to get it. OK. Let's get started.If we want to get the view pointer, first we need to get the pointer to the document and how to get the pointer to the document class, first we need to get the pointer to the Document Template (that is, CDocTemplate ),

First: Form room = new room (); // room is the new form nameFor (INT x = 0; x {Form tempchild = (form) This. mdichil.pdf [x];Tempchild. Close ();}Room. mdiparent = this;Room. windowstate = formwindowstate. maximized;Room. Show (); Second: // Query whether the form already exists by the form name. If yes, it is displayed. Otherwise, a new form is created.If (this. checkchildfrmexist ("subjectsetting") = true){Return;}Subjectsetting newfrm = new subjectsetting (); // subjectsetting is the