Capturing onMinimize event?

[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

[Asbjørn Ulsberg]

On Wed, 07 Apr 2004 17:11:39 +0530, Jim wrote:

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.

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);
}

--
Asbjørn Ulsberg -=|=- as******@hotmail.com
"He's a loathsome offensive brute, yet I can't look away"

[Jim]

Works beautifully!

Thanks :-)

Asbjørn Ulsberg wrote:

On Wed, 07 Apr 2004 17:11:39 +0530, Jim wrote:

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.

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);
}

[Marcin Grzębski]

Hi,

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

Marcin

On Wed, 07 Apr 2004 17:11:39 +0530, Jim wrote:

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.

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);
}

[Asbjørn Ulsberg]

On Wed, 07 Apr 2004 15:02:38 +0200, Marcin Grzębski wrote:

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

No, sorry. I found the example on The Code Project or something.

--
Asbjørn Ulsberg -=|=- as******@hotmail.com
"He's a loathsome offensive brute, yet I can't look away"

[agro_r]

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/en-us/cpref/html/frlrfSystemWindowsFormsFormWindowStateClassTopic.a sp?frame=true

[agro_r]

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/en-us/cpref/html/frlrfSystemWindowsFormsFormWindowStateClassTopic.a sp?frame=true