How to remove icon from title bar

RIAS
RIAS used Ask the Experts™
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Hello,

I have an icon that I want to display in the taskbar; however, I don't want this icon to display in the title bar. I tried setting ShowIcon to false, but that hides my icon in both the title bar and the task bar. Is there any way to only hide it in the title bar?
i am using vb.net 2015 desktop
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Ryan ChongSoftware Team Lead

Commented:
your existing setting should be correct >> ShowIcon to false

then try go to project properties and change the icon there accordingly?
SnapShot.png
AndyAinscowFreelance programmer / Consultant

Commented:
Try making different sized (32x32 and 16x16) icons for the app.  The smaller one (title bar?) being blank.
Ryan ChongSoftware Team Lead

Commented:
disregard my comment above, it seems doesn't work.
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Author

Commented:
Try making different sized (32x32 and 16x16) icons for the app.  The smaller one (title bar?) being blank.

Where to set these icons ?
AndyAinscowFreelance programmer / Consultant

Commented:
I get both sizes created automatically when I add an icon to the project:

SNAG-0012.bmp

Author

Commented:
There is no option to choose icons for title and taskbar in visual studio 2015
AndyAinscowFreelance programmer / Consultant

Commented:
Odd.  I don't have VS 2015 to test but there ought to be a way to customise the icon for the app.

Author

Commented:
Not sure how to set icons for taskbar and titlebar
AndyAinscowFreelance programmer / Consultant

Commented:
In the form load event
        Me.Icon = My.Resources.Icon1
where Icon1 is the name of your custom icon.

Author

Commented:
Andy but this option is for both title bar and taskbar.Dont know how to set differently for titlebar and taskbar?
AndyAinscowFreelance programmer / Consultant
Commented:
You didn't read my suggestion properly (or your PC behaves differently than mine).

Try making different sized (32x32 and 16x16) icons for the app.  The smaller one (title bar?) being blank.

SNAG-0013.bmp
SNAG-0014.bmp

Author

Commented:
So to brief it ; Andy need to have two icons with same name.My question is how does the vb.net app know which icon to use for titlebar and taskbar.Cannot see any settings for doing that.
AndyAinscowFreelance programmer / Consultant

Commented:
The system chooses the icon automatically based on how big the icon is and how big is the icon to be displayed.  The title bar being much smaller than the task bar means (in general) the 16x16 icon will be used for the title bar and the 32x32 will be used for the task bar.

Author

Commented:
Cheers Andy!

Commented:
ShowIcon and ShowInTaskbar are properties of the form, not the project.Capture.JPGSetting ShowIcon to false instructs the form not to display the icon on the caption (or title) bar.  Setting ShowInTaskbar instructs the form not to display on the Windows taskbar.

-saige-

Author

Commented:
-saige-,
Can it be viceversa

Showicon in taskbar and not in title bar
Commented:
Well one way is by setting the FormBorderStyle to either FixedToolWindow or SizableToolWindow; e.g. -Capture.JPGThe problem with this is that it results in a more or less border-less form with no control box (Minimize, Maximize and Help are removed).

The next course of action is to use the API without changing the FormBorderStyle; e.g. -
Imports System.Runtime.InteropServices

Public Class Form1
	Const WM_SETICON = &H80
	Const ICON_SMALL = 0

	Private Sub OnLoad(sender As Object, e As EventArgs) Handles MyBase.Load
		Using emptyImage As Bitmap = New Bitmap(1, 1)
			SendMessage(Handle, WM_SETICON, ICON_SMALL, emptyImage.GetHicon())
		End Using
	End Sub

	<DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
	Private Shared Function SendMessage(ByVal hWnd As IntPtr, ByVal Msg As UInteger, ByVal wParam As IntPtr, ByVal lParam As IntPtr) As IntPtr
	End Function
End Class

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Capture.JPGThis way you still get your control box, but you end up with blank space in front of the title where the icon would normally reside (because the icon is still there it's just a 16x16 blank space).

-saige-

Author

Commented:
Hello,
Thanks, will go for the second method and get back
AndyAinscowFreelance programmer / Consultant

Commented:
If you look very carefully the code from it_saige  (for setting an icon) is just doing what I suggested in a more indirect way.  (It can be useful for you if you needed to make other windows API calls)

Is there a problem with what I suggested?  Here it will work in the fashion you described with one line of code.

Author

Commented:
Yes Andy , both the experts made it very clear to understand.

Author

Commented:
Saige as usual thorough description and clarity in your solution. Thank you Sir.

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