恢复事件后表单大小出现问题

发布于 2024-10-31 12:54:07 字数 356 浏览 3 评论 0原文

我有一个 Mdi 应用程序，其中包含 1 个父表单和 3 个子表单。父窗体大小总是这样计算：

this.Size = ActiveMdiChild.Size;
this.Height +=150; // because there is a control at the bottom of Parent form

问题是，当我最小化父窗体，然后恢复它时，恢复后它的大小减少了 20。所以窗体看起来有点扭曲。在我的代码中，我没有指定它来减小它的大小，因此它应该在恢复后返回到之前的大小。我想这可能是一个错误。所以我想知道如何才能避免这种情况。我的想法是捕获恢复事件，然后将表单大小更改为应有的大小，但我不知道如何捕获恢复事件。

原文

I have a Mdi application with 1 Parent form and 3 Child forms.
Parent Form size is always calculated like this:

this.Size = ActiveMdiChild.Size;
this.Height +=150; // because there is a control at the bottom of Parent form

Problem is, when I minimize Parent Form, and then restore it, its size after restore has decreased by 20. So the form looks kinda distorted. In my code, I haven't specified it to decrese it's size so it should return to it's earlier size after restore. I guess it could be a bug. So I was wondersing how I could avoid this. My idea was to catch the restore event, and then change form size to what it should be, but I don't know how to catch restore event.

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初熏 2024-11-07 12:54:07

您可以通过重写 WndProc 来做到这一点：

 protected override void WndProc( ref Message m )
    {
        if( m.Msg == 0x0112 ) // WM_SYSCOMMAND
        {
            // Check your window state here
            if (m.WParam == new IntPtr( 0xF120) ) // Maximize event - SC_MAXIMIZE from Winuser.h
            {
                  // THe window is being restored
                  this.Size = ActiveMdiChild.Size;
                  this.Height +=150;
            }
        }

You can do this by overriding WndProc:

 protected override void WndProc( ref Message m )
    {
        if( m.Msg == 0x0112 ) // WM_SYSCOMMAND
        {
            // Check your window state here
            if (m.WParam == new IntPtr( 0xF120) ) // Maximize event - SC_MAXIMIZE from Winuser.h
            {
                  // THe window is being restored
                  this.Size = ActiveMdiChild.Size;
                  this.Height +=150;
            }
        }

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