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String is the actual .NET type, it's fully qualified name is System.String. As for string, it's a C# keyword that's simply an alias for System.String. They are the same thing; string is just a C#-specific alias for System.String.
In a similar fashion,
System.Int32 is the actual .NET 32-bit integer type, and int is a C# keyword that's an alias for System.Int32.
Same correpsonds to System.Single and float, System.Double and double, and so on.
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The folder should not be accessed by anyone.
vimal
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Change the permission at the file system level
--------
"I say no to drugs, but they don't listen."
- Marilyn Manson
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Hi all!
Mission: take a bitmap (which is saved on the harddisk), convert it to another, with given size and color depth, and save.
Code:
// load the original bitmap from hard disk
Bitmap originalBmp = new Bitmap( path );
// create a new bitmap with needed size
Bitmap bmp = new Bitmap( originalBmp, new Size( 32, 32 ) );
// find the codec for saving ("GetCodecInfo" browses all known codecs and
// finds the needed one; it works fine)
ImageCodecInfo codec = GetCodecInfo( "image/bmp" );
EncoderParameters parameters = new EncoderParameters( 1 );
// set the color depth
parameters.Param[0] = new EncoderParameter( Encoder.ColorDepth, 8L );
// save the bitmap
bmp.Save( path, codec, parameters );
Problem: no matter what i do, the color depth of the resulting bitmap is always "truecolor" (i.e., 24 bpp). What am i doing wrong? I've seen very similar samples on MSDN, where MS claim that this is the way to control the color depth. But it doesn't work!
Thanks!
Gal S.
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How can i use winmm.dll to adjust the master volume of Windows
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Is there any way to replace a Bitmap image (in a resource) to a loaded (in-memory) DLL?
Example...
App.exe
-> resource.dll
-> other.dll
-> interface.dll
Lets say app.exe loads each of the above dll's in the order listed. What I need is code in the interface.dll, which modifies/changes/updates a bitmap resource in resource.dll whilst in memory. The bitmap will not always be the same size and colours, so the entire bitmap and colour map will need to be updated. Bitmap image will never use any more than 16 colours.
App.exe does not display the associated bitmap before the interface.dll is loaded in memory. I am using standard C API (non MFC).
I am trying to avoid committing the changes to the actual dll file itself (on disk) if that is possible (ie. need to update the in-memory dll). I can get a handle to the interface.dll module and associated bitmap resource image using, but not sure what to do from there:
hMod = GetModuleHandle("interface.dll");
hRes = FindResource(hMod, MAKEINTRESOURCE("my_bitmap_image"), RT_BITMAP);
hGlob = LoadResource(hMod, hRes);
I know it can be done, as I have seen it done, but unable to get the source code.
Thanks in Advance
Goldmine
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Dear Sir
Can I assign any ProcessName to my program. for ex. my program is A.exe, Is there any way to rename it to B.exe in task manager list?
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Open explorer and rename A.exe to B.exe.
That's probably not what you wanted but hey, I'm in that kind of mood. On a more serious note, I don't think there's any easy way.
[edit]Have you tried changing the Application Name in the Properties pages?[/edit]
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Cybercockroach wrote: Can I assign any ProcessName to my program. for ex. my program is A.exe, Is there any way to rename it to B.exe in task manager list?
Not if it's already running. The process name in task manager is the physical name of your process; your executable's name.
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I want to do this because I have to run the same program at the same time(may be ten times) with different arugement. and I only have the same name in task manager with different pid. I dont know which process run with which arugement. So I would like my process named as my ProcessName+arugement in task manager. thanks for your reply^^ and sorry for my poor english
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Hello!
In my application I am using a listview consisting of columns and rows. During execution, the list view gets filled up with list view items. Now I am wondering if there is a way to get the information that exists in any of these cells. For instance if I have 10 rows and 10 columns I would like to extract the information existing in the cell at row 5, column 5. Is this possible?
Best regards,
Hampus
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object information = this.listView.Items[4].Subitems[4];
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Hi,
I would like to do the following steps from an external application:
1- launch a C# program in GUI mode
2- fill some fields in this GUI
In which direction should I look at?
Thanks in advance
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Preferably at the screen and keyboard because if you don't look at them then you can't type in http://www.google.com[^].
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Hy,
Lapius wrote: launch a C# program in GUI mode
Have a look at System.Diagnostics.Process class.
Lapius wrote: fill some fields in this GUI
Try using to pass command line arguments to the aplication that you launch (arguments that contain the data needed to fill the fields).
Do your best to be the best
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To pass data to C# app at run-time, you could (probably should) implement an IPC between the two apps, such as socket interface. Let them to communicate through the IPC.
Best,
Jun
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How can i write a function in c# which can return more than one value. Can someone tell me the exact syntax plz.
sAqIb
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this depends on what exactly you want to return.
if you want to return variables of different datatypes, you could return an objectarray. this could look like
<br />
object[] dummymethod()<br />
{<br />
object [] returnarray = new object[3];<br />
returnarray[0] = "somestringval";<br />
returnarray[1] = 23112321;<br />
returnarray[2] = new System.Windows.Forms.Form();<br />
<br />
return returnarray;<br />
}<br />
this way you would return three different values. to use them in other function you would have to do explicit casts...
// edit: argh forgot a semicolon...
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thanks buddy. can you also please guide me how can i use those returned values. i mean how can i able to access those returned values?
sAqIb
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Hello,
You can also use an "out" value parameter method. (You can use more then one out value)
private string mymethod(out int intvalue, ...)
{
}
Hope that helps you!
All the best
Martin
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As a third method you might want to return a struct
public ReturnValues MyFunction()
{
ReturnValues ret = new ReturnValues();
ret.Param1 = null;
ret.Param2 = 42;
ret.Param3 = "test";
return ret;
}
struct ReturnValues
{
public object Param1;
public int Param2;
public string Param3;
}
regards
modified 12-Sep-18 21:01pm.
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I want to control the sound volume of windows in my application, how can i do it?
plzzzzzz help
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Search for "mixer" in the articles here, you'll find something.
And plzzzz d0tn uze leetspeak, it's so childish...
Regards,
mav
--
Black holes are the places where God divided by 0...
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hi all
plz tell me about this
muhammad mahmood ilyas
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