WinForm special effect: make the two forms have activation effect at the same time, winform form

WinForm special effect: make the two forms have activation effect at the same time, winform form

Windows api. When a form is activated, a message is sent to another api.

[Csharp]View plaincopy

1. Using System;
3. Using System. Windows. Forms;
5. Using System. Runtime. InteropServices;
7. Namespace WindowsApplication43
9. {
11. Public partial class Form1: Form
13. {
15. Form frm = null;
17. Public Form1 ()
19. {
21. InitializeComponent ();
23. This. Activated + = Form_Activated;
25. }
27. Const int WM_NCACTIVATE = 0x86;
29. Const int WA_ACTIVE = 0x1;
31. [DllImport ("user32.dll", EntryPoint = "SendMessage")]
33. Public static extern int SendMessage (IntPtr hWnd, int wMsg, int wParam, int lParam );
35. Private void button#click (object sender, EventArgs e)
37. {
39. Frm = new Form ();
41. Frm. Text = "jinjazz ";
43. Frm. Activated + = Form_Activated;
45. Frm. Show ();
47. Frm. Location = new System. Drawing. Point (this. Left + this. Width, this. Top );
49. SendMessage (this. Handle, WM_NCACTIVATE, WA_ACTIVE, 0 );
51. }
53. Void Form_Activated (object sender, EventArgs e)
55. {
57. SendMessage (this. Handle, WM_NCACTIVATE, WA_ACTIVE, 0 );
59. If (frm! = Null)
61. SendMessage (frm. Handle, WM_NCACTIVATE, WA_ACTIVE, 0 );
63. }
65. }
67. }

Winform form mobile event simultaneously moves two forms

Add the following code to the cs code of Form1:
Public Form2 f2 = new Form2 (); // outside the processing function, the global variable
F2.Show (); // call this statement if needed to display Form2
// In this way, f2 is like a component in Form1.
Add the following code to the Form1 mobile event:
Try
{
Int x = f2.Top-this. Top; // calculates the vertical distance between the two boxes.
Int y = f2.Left-this. Left; // calculates the horizontal distance between the two boxes.

F2.Top = this. Top + x;
F2.Left = this. Left + y;
// Fixed the issue. The location of the two boxes in the lower floor is limited ..
} Catch {}

C # winform: the fade-in effect is implemented for the form, but how is the fade-out effect implemented?

// Overwrite the form close event
Protected override void OnClosing (CancelEventArgs e)
{
E. Cancel = true;
Timer2.Start ();
}

Private void timer2_Tick (object sender, EventArgs e)
{
This. OPS-= 0.1;
}

Tested. Timer is added separately.

(You have answered in another post. When you click Close, the form fades out .)