Re: Installer Project, Registry and Regasm - C# Discussion Boards

Tooltip for a TrackBar control

12-Jul-06 6:55

Don't include it in the list.

I don't think there is a way since the items are just a collection, no way to disable one. You may be able to simulate the behavior by handling the selection and canceling it.

Read DiComm Headers

jrandomuser12-Jul-06 5:56

jrandomuser

12-Jul-06 5:56

I currently have a set of DiComm images. I understand that stored within these images are attributes. I need to view these attributes and store the values along with the file in a database. What I seem to be having a hard time with is understanding how to view the header information within the actual DiComm file. Do I need a dictionary defined first? Does anyone have a sample that illustrates what I am looking for or can any point me in a solid direction?

Thanks,

Joshua

Jon Hulatt12-Jul-06 5:53

Jon Hulatt

12-Jul-06 5:53

Hi,

I'd like to be able to show a tooltip when the user starts to drag the handle of a Trackbar control, and have that tooltip display the value of the trackbar control.

I really have no idea where to start on this. Tooltips disappear as soon as you mouse down, or mouse move.

Anyone know a technique or can give me a lead?

Thanks

Jon

PS. Using .NET 2.0

using System.Beer;

Re: Tooltip for a TrackBar control

alexey _N12-Jul-06 21:22

alexey _N

12-Jul-06 21:22

Activate or recreate tooltip on MouseMove.

My english is bad. Please, correct my errors.
Best regards, Alexey.

Installer Project, Registry and Regasm

Ranjan Banerji12-Jul-06 5:46

Ranjan Banerji

12-Jul-06 5:46

I have a COM object built in C#. Its a an IE deskband. It implements the following method:

<br />
        [ComRegisterFunctionAttribute]<br />
        public static void Register( Type t )<br />

Which gets called when regasm is used and it makes teh appropriate entries into the registry. Works great.

Now I am trying to build a installer for this using VS 2005. I did the following:

1. I added all assemblies to the GAC
2. I marked my dll as Regsiter vsdrpCOM in the property window.

The install works but my tool bar does not show up in IE.

The I tried the following:
1. I added all assemblies to the GAC
2. I added my dll to the prgram folder in addition to the GAC.
3. I marked my dll (the program folder one) as Regsiter vsdrpCOM in the property window.

Install works with no errors but toolbar does not show up in IE.

BUT, now if I use the commandline and regasm my dll (program folder one), bingo... everything works.

What do I have to do in the installer project to make this work. I know the installer lets you make registry entries, but I do not wish to do that. Its what the

<br />
        [ComRegisterFunctionAttribute]<br />
        public static void Register( Type t )<br />

is meant for.

My first hunch was that regasm was not working. On further inspection I realized that regasm was working but not completely.

My Register Method does the following:

<br />
  if( 0 != ( style & BandObjectStyle.Vertical ) )<br />
      rkCat.CreateSubKey( "{00021493-0000-0000-C000-000000000046}" );<br />
<br />
  if( 0 != ( style & BandObjectStyle.Horizontal ) )<br />
      rkCat.CreateSubKey( "{00021494-0000-0000-C000-000000000046}" );<br />
<br />
  if( 0 != ( style & BandObjectStyle.TaskbarToolBar ) )<br />
     rkCat.CreateSubKey( "{00021492-0000-0000-C000-000000000046}" );<br />
<br />
  if( 0 != ( style & BandObjectStyle.ExplorerToolbar ) )<br />
                Registry.LocalMachine.CreateSubKey( @"SOFTWARE\Microsoft\Internet Explorer\Toolbar" ).SetValue( guid, name );<br />

On inspecting the registry after installation I notice that all entries but the last one are in the registry. So whats going on? A manual regasm works for all of the above, an installer based one does not.

Re: Installer Project, Registry and Regasm

Ranjan Banerji11-Sep-06 17:21

Ranjan Banerji

11-Sep-06 17:21

I should reply to my own post. I found the answer to this long ago, but never came back to update this. So here goes. Regasm comes with Visual Studio. So a machine with no visual studio and just the .Net framework will NOT have regasm on it.

Hence, you cannot rely on
[ComRegisterFunctionAttribute]
public static void Register( Type t )

For this is called by regasm. You need to find other ways to register your DLL and make otehr registry entries.

ComboBox lock/suppress DropDown

--Ian12-Jul-06 5:26

12-Jul-06 5:26

I have a control that is derived from the standard ComboBox. I want to lock or suppress the DropDown when the arrow button is clicked without disabling the control.

This is related to another post that I have out there for a custom OnPaint event. I want to provide custom colors for ComboBox that work even when the Enabled is set to false (by default it is set to Gray). I have provided a new implementation for the Enabled property to handle it myself. When the control is in my disabled state I am supressing KeyDowns so that it appears as if it is disabled. The only problem is that you can still drop down the list, and choose an item. If I can lock this, I'm good to go.

Oh, and I'd rather not have to use SendMessage in WndProc to accomplish this. I don't want to have a dependency on user32.dll.

--Ian;

Not Active12-Jul-06 5:33

12-Jul-06 5:33

--Ian wrote:
I want to lock or suppress the DropDown when the arrow button is clicked without disabling the control.

Sound like a textbox with an image of an arrow next to it.

--Ian12-Jul-06 6:38

12-Jul-06 6:38

I'd also not like to reinvent the wheel. Everything else the ComboBox does is great, I just want to lock the drop down list from being dropped down.

--Ian;

Not Active12-Jul-06 6:46

12-Jul-06 6:46

I guess I don't understand. A dropdown without being able to dropdown is not a dropdown. A rose by any other name would be a textbox.

--Ian12-Jul-06 7:13

12-Jul-06 7:13

The problem is that I need a dropdown with my own custom Enabled property. When I disable it, I want to lock or suppress the dropdown list from being displayed. In other words, this rose must still be a dropdown.

Once again, the root cause for this is that the BackColor is set to Gray when the ComboBox is diabled by setting Enabled = false. The OnPaint event is creating other issues, as expressed in another post, and I'm looking for another workaround.

--Ian;

VB 8.05-Feb-09 1:01

VB 8.0

5-Feb-09 1:01

Hi CP,

May i know anyone get the things ?

Regards ,

ComboBox Custom OnPaint

--Ian12-Jul-06 5:15

Re: ComboBox Custom OnPaint

12-Jul-06 5:15

I have a control that is derived from the standard ComboBox. I have an override for the OnPaint method that paints a border, drop down arrow button, background, and foreground. The only problem is that something (some other event/subcontrol) is drawing a black text box with a large font over top of the text box region of the combo box control.

I am drawing a background in my OnPaint event, and it is being draw on top of. I can see that the background is drawn because there is a border around the text box region. My code looks like the following:

protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);

DrawBorder();
DrawBackground();
DrawArrowButton();
DrawForegroundText();
}

What am I missing here??? By the way, this control works just fine if the DropDownStyle is set to DropDownList, however I'm need it to work as a DropDown (being able to edit the text box).

--Ian;

leppie12-Jul-06 7:01

leppie

12-Jul-06 7:01

--Ian wrote:
base.OnPaint(e);

I think you dont need to call that Smile | :)

xacc.ide-0.2.0 preview - Now in 100% C# goodness

Re: ComboBox Custom OnPaint

--Ian12-Jul-06 8:10

Re: ComboBox Custom OnPaint -- CODE

12-Jul-06 8:10

Actually it doesn't matter if I call base.OnPaint(e), because I'm doing my custom paint stuff after the call. Either way, if you remove the call, the text box is still drawn by something else.

--Ian;

--Ian13-Jul-06 3:18

GDI - filling color in a region

13-Jul-06 3:18

The sample class below does not contain all the code, however it will give you an idea of the problem. Just drop this class into your a project, compile, and drop it the ComboDraw control onto a form.

<br />
using System;<br />
using System.Collections.Generic;<br />
using System.Drawing;<br />
using System.Text;<br />
using System.Windows.Forms;<br />
<br />
namespace ComboTest<br />
{<br />
class ComboDraw : ComboBox<br />
{<br />
public ComboDraw()<br />
{<br />
DrawMode = DrawMode.OwnerDrawFixed;<br />
DropDownStyle = ComboBoxStyle.DropDown;<br />
FlatStyle = FlatStyle.Flat;<br />
SetStyle(ControlStyles.UserPaint, true);<br />
}<br />
<br />
protected override void OnPaint(PaintEventArgs e)<br />
{<br />
base.OnPaint(e);<br />
<br />
e.Graphics.FillRectangle(new SolidBrush(Color.Green), ClientRectangle);<br />
}<br />
}<br />
}<br />

--Ian;

Imtiaz Murtaza12-Jul-06 5:03

Imtiaz Murtaza

12-Jul-06 5:03

Dear friends,
I draw a circle in the client area of the window. Then i divide that circle into four parts by drawing two straight lines passing from the middle of that circle. It means that the circle is divided into four pies.

Now what i want is that whenever i click inside any pie, it should get filled with color. I dont want to fill entire circle with the color. What i want is that whenever i click inside any closed region (like pie), that region get filled with some color. Please tell me how is this possible ?

I want to do some something like famous MS-Paint program. In MS-Paint, we select brush and then click inside any bounded region, as such only that region gets filled with the color.

Imtiaz

Re: GDI - filling color in a region

Not Active12-Jul-06 5:13

Re: GDI - filling color in a region

12-Jul-06 5:13

A little bit of research will go a long way.

If you look at the Graphics object you will find methods called FillPie and FillRegion. Perhaps these are what you need.

Imtiaz Murtaza12-Jul-06 5:33

Imtiaz Murtaza

12-Jul-06 5:33

Whatever i wrote above is just a simplified form, actually i need to do something like MS paint. If we select brush object in MS paint and click on the drawing, specific portion surrounded by lines or curve gets colored.

Imtiaz

Re: GDI - filling color in a region

Not Active12-Jul-06 5:43