Capturing onMinimize event?

  • Thread starter Thread starter Jim
  • Start date Start date
J

Jim

Hi,

I intend to set the form Visibility to false and show a taskbar icon
instead. I've done this on the FormClosing event but I want this to
happen when the form is minized too.

How do I capture this event?

Thanks in advance,
Mikhail
 
I intend to set the form Visibility to false and show a taskbar icon
instead. I've done this on the FormClosing event but I want this to
happen when the form is minized too.
Click to expand...

declare the following somewhere in your form:

public event EventHandler Minimize;

and inside the constructor of your form, attach an event handler:

this.Minimize += new EventHandler(this.Form1_Minimize);

and finally, copy/paste this method to your form:

protected override void WndProc(ref Message msg) {
const int WM_SIZE = 0x0005;
const int SIZE_MINIMIZED = 1;

if ((msg.Msg == WM_SIZE) && ((int) msg.WParam == SIZE_MINIMIZED) &&
(this.Minimize != null)) {
this.Minimize(this, EventArgs.Empty);
}

base.WndProc(ref msg);
}
 
Works beautifully!

Thanks :-)

Asbjørn Ulsberg said:
declare the following somewhere in your form:

public event EventHandler Minimize;

and inside the constructor of your form, attach an event handler:

this.Minimize += new EventHandler(this.Form1_Minimize);

and finally, copy/paste this method to your form:

protected override void WndProc(ref Message msg) {
const int WM_SIZE = 0x0005;
const int SIZE_MINIMIZED = 1;

if ((msg.Msg == WM_SIZE) && ((int) msg.WParam == SIZE_MINIMIZED) &&
(this.Minimize != null)) {
this.Minimize(this, EventArgs.Empty);
}

base.WndProc(ref msg);
}
Click to expand...
 
Hi,

Don't You know where i can search for integer representation
of Window messages and WParams?

Marcin
 
Don't You know where i can search for integer representation
of Window messages and WParams?
Click to expand...

No, sorry. I found the example on The Code Project or something.
 
Actually, when the form is minimized a Form.Resize event is fired...
You can then check the WindowState property wether the form is
minimized in the event handler...


this.Resize += new EventHandler(HideForm);


[code:1:ba4f873ece]
void HideForm(object sender, EventArgs e)
{
if(this.WindowState == FormWindowState.Minimized)
{
// put your code here...
}
}
[/code:1:ba4f873ece]

read more about the FormWindowState enumeration here...

http://msdn.microsoft.com/library/e...FormsFormWindowStateClassTopic.asp?frame=true
 
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