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Hi,
I am trying to use a VB ocx control in C#.
I have done the following
1. Registered the ocx
2. Included the component in VS .Net IDE tool bar.
But when I try to drag and drop the control I am getting an error "Failed to import the ActiveX control. Please ensure it is registered properly."
Any idea why this is happening?
Note:
Internally the ocx control makes use of a C++ dll.
I am using .Net Visual Studio 2005
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Try to create this component dynamicaly.
If it'll works, then it's bugs with form designer, else try to debug your component.
My english is not so good. Please, correct my errors.
Best regards, Alexey.
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Message Closed
modified 27-Apr-15 11:25am.
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I tried this. It is not working.
Looks like there is some problem in creating the wrapper for the ocx.
After drag and drop, under Project->References the wrapper is not available. It simply shows the wrapper's name with a warning icon ( i.e.., the icon used to indicate that the reference is not available or not built).
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I tried this. It is not working.
Looks like there is some problem in creating the wrapper for the ocx.
After drag and drop, under Project->References the wrapper is not available. It simply shows the wrapper's name with a warning icon ( i.e.., the icon used to indicate that the reference is not available or not built).
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How to add a Tool tips defined in a datagrid column which shall be extracted from phone test command database for the connected phone.
With Thanks
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Hi all,
I just need to know if/how it is possible to set a default printer, only temporary and then set it back to the original default printer. In this way i can do my print to the printer of my user's choice and set it back to their original default printer after the print has been succesfully printed.
Thank you in advance...
"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison
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well write some code to access the machine's registry to change the default printer. Here is a quick google result on changing registry values
www.google.com/search?sourceid=navclient-ff&ie=UTF-8&rls=GGGL,GGGL:2007-25,GGGL:en&q=changing+default+printers+registry
-- modified at 3:01 Friday 18th August, 2006
failed attempt at tidying me url
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Hi guys,
In my program I want to view thumbnails.. But when the original image size goes up the program starts to freeze..
In my method I directly load the original image to an Image object and then using the GetThumbnail(....) method resize it and pass to another Image object. But it seems this is not an effective way !!
Is there ny idea, or trick or something else to increase this performance ?
I am open to any advice..
Best regards
.:: Something is Wrong ::.
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Hello
Try to load the images themselves and resize them to the size you want -I heard alot about Thumbnails poor performance-.
Also try to load each image using a different thread. This would work like download accelerators, and will preserve you UI active.
Regards![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
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I have visual studio 2003 installed.
Everything was working fine till now, but all of a sudden i am not able to open windows form in designer mode.
When i try to open it, i get the message <<an error="" occured="" while="" loading="" the="" document.="" fix="" error,="" and="" try="" document="" again.="" message="" follows:="" unspecified="" error.="">>
I tried closing the IDE and reopening, rebuliding (funny thing is it builds fine and the form gets displayed when i run the application), closing the solution and building form command prompt.
Nothing that I did fixed the issue.
Any idea anyone???
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Hi Friend,
what you have to do open the code view if window which does not open in design mode
and check that the first class name in the namespace must be the class name of the form's class
i.e. it may be Form1 like that. Other classes should be below that.
Rahul Kulkarni
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I have same problem with ActiveX components on form.
But when I reopening VS2005 all works fine.
Maybe you trying to access some object before it's initizlisation ?
Analize your callstack.
My english is not so good. Please, correct my errors.
Best regards, Alexey.
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Thanks for the suggestions.
Actually the problem was not with any initialization or anything sort of that. The same solution was working perfectly fine until yesterday!
I had installed some system updates...not sure if that has goofed up my IDE.
But anyways, i just went about cleaning up all my projects, bin/obj/cproj.user and then opened the solution again, built it. Things are working fine now.
Hopefully i shouldnt face the problem again...else i'll have to setup a schedule task to do this everyday.;)
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You can simply write bat file or VS plugin.
My english is not so good. Please, correct my errors.
Best regards, Alexey.
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Weird thing with VS (2005 at least)... If you aren't relying on DB data for your controls when you initialize them (which I learned not to do the hard way...) you might need to delete the bin and object directories from your solution folder.
Close all designer tabs open in the IDE. Close VS. Delete those folders. Re-open VS. Recompile the app. Then re-open the files that were having problems.
Don't know why this happens, just know this sometimes solves it.
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i have to create a group box then in the groupbox i have to put one radio button, when i will select the radio button it will enable one datagrid.In the datagrid there are 4 columns . all these column names are Name, Type, Attribute and Length.
All these columns are text boxes.
Attribute column it shall be replaced by a read only text. Possible values shall be “Read only” or “Editable“..
Length shall be replaced by a read only text.. Possible values shall be “Fixed” or “Variable“
i have to adda tooltip for this datagrid and while cursor p[oint will move from one text box to another it should display the user information . Information could be any thing.
Could you please send me the code for this particular requirement..
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I'm not sure what to call this. but i rember once seeing this color wheel which showed the best opposing colors...like yellow was the color opposite black.
I'm not trying to figure out how to invert a color.
so i want a function where if i send in the color black, it returns yellow.
i'd settle for the name of that sorta color wheel :P
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substract the RGB combination of current color from RGB(255,255,255)
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Hi,
After reading your disccission i have a question.
that is how to get the rgb codes of the specific color,
for example what are the rgb combinations of the color yellow.
thanks.
Nitin...
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Try this:
Color original = Color.Yellow;
Color opposite = Color.FromArgb(255 - original.R, 255 - original.G, 255 - original.B);<pre>
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Ok i did some research and it turns out that complementary colors is same as inverted colors, for most part. so blue is the opposite of yellow, not black
Here's another way to get inverted color... not sure if its more effecient.
private Color InvertColor(Color color)
{
byte bRed = (byte)~(color.R);
byte bGreen = (byte)~(color.G);
byte bBlue = (byte)~(color.B);
return Color.FromArgb(bRed, bGreen, bBlue);
}
This site helped to explain it: http://www.webwhirlers.com/colors/combining.asp
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When I will press the backspace it shouldnt delete at a paricular position.How to do it
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Hello
There are several approaches. This is the one I use:
bool ToChange = true;
string OldText = "";
private void TextBox_KeyDownHandler(object sender, KeyDownArgs e)
{
If(e.KeyChar == "\b")
{
OldText = TextBox.Text;
ToChange = false;
}
else
ToChange = true;
}
private void TextBox_TextChanged((object sender, KeyDownArgs e)
{
If(!ToChange)
{
TextBox.Text = OldText;
TextBox.SelectionStart = TextBox.TextLength;
}
}
You see. The text hasn't changed when the keydown event was fired. So if we don't want to accept thechanges we store the original text in a string. Once the text has changed, the TextChanged event will be fired. It will check to see if we want to accept the changes. If not, revert to the old text.
If anyone got a better approach, please post.
Regards![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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