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Suppose I have built program that can save it state in some files. I'm interested in basics on how can I register an file type to my application (when file with extension .myProj is doubleclicked my program opens and loads state from that file)... I'm using Setup for deploying application.
Tnx in advance for any idea 
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Hello,
In my code I'm using a ListView control with LargeImageList enabled. But I noticed that the thumbnails that display my pictures are automatically stretching my images.
In my picturebox I've scaled my images and set the sizemode to center. Now I would like the listview to display this the same way (just like they get scaled in windows explorer thumbnails)
Thanks,
Ghost
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The icons you add to an ImageList after setting the icon size must be that size or they will get stretched. So, if you need large images set your ImageList.ImageSize to 32,32 (or whatever is appropriate) then add images of that size. If you don't, they will be stretched.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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Then how can I get scaled images into the imagelist. I want all imagelist images to have the same size but not necessarily completely filled.
Eg: My ImageList.ImageSize is 60,60 and I have 2 images that I need to fit in this imagelist, that have a size: 60,40 and 30,60. Still I want the LargeImageList to keep displaying square images with those 2 scaled images without being stretched.
It should be possible, windows explorer does it this way.
I could solve it by making a 60,60 bitmap, filling the center with my 60,40 image and fill the rest with white pixels, but that seems like a way to create overhead...
No other possibility?
greetz,
Ghost
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You need to scale them first. Create a Bitmap of the appropriate size, then get a Graphics object from the Bitmap using Graphics.FromImage. Use Graphics.DrawImage to draw and scale the image in the Bitmap. When finished, call Graphics.Dispose and add the new Bitmap into the ImageList.
If you want to draw a certain color for a background, use Graphics.Clear and specify a color like Color.White.
What Windows Explorer does is much more complicated than you think. Windows Explorer doesn't really even do much in regards to what you see and your question: it's shell extensions that handle this and how they do it depends on their implementation. What I described above, however, is basically what most such extensions do (only using managed code in this case, instead of GDI or GDI+).
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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Thank you for the quick answer,
Ok, I'll solve it that way: scale it and fill the rest with white pixels.
Just find it strange though that they did not provide a sizemode for an imagelist, the same they provided it for a picturebox.
Greetz,
Ghost
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geestje wrote:
Ok, I'll solve it that way: scale it and fill the rest with white pixels.
Actually you'll want to clear it and fill it with white pixels first (you can do that with one call; read about Graphics.Clear) then scale and draw your image.
It's not weird at all if you understand what these objects actually are. A PictureBox draws an image into an HDC for a window (a control is a window in native terms). An ImageList is a wrapper around a native GDI+ ImageList that draws whatever you give it into an HDC for the images it contains. It is meant only to hold images - not to display them to users. It is the control that uses the images that defines how those images are drawn. Think of it as a simple collection.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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Hi,
I had to create my own form to get files from my directory because i had to add allot of functionality not available on the system dialog boxes (done with that) now my problem is i need to pass on the selected files from my directory form to my main form...i can't get this to happen...can anyone help??...this is how i'm calling my second form:
private void mnu_Open_Click(object sender, System.EventArgs e)
{
Form2 myMenu = new Form2();
Menu.Show();
}
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If I understand you correctly, you can have property ( or internal field) with data you want to pass...
It can look like :
<br />
class Form2:.... {<br />
...<br />
<br />
public string[] Files<br />
{<br />
get<br />
{<br />
return m_files;<br />
}<br />
}<br />
}<br />
<br />
private void mnu_Open_Click(object sender, System.EventArgs e)<br />
{<br />
Form2 myMenu = new Form2();<br />
<br />
myMenu.Show();<br />
<br />
DoSomethingWith(myMenu.Files);<br />
}<br />
Does it help?
bets regards,
David 'DNH' Nohejl
Never forget: "Stay kul and happy" (I.A.)
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And out of mercy to those who might have to read your code, you might want to use a more meaningful name than "Form2" for the thing. As well, myMenu = new Form(); is a bit confusing -- is it a form or a menu?
Additionally, you might want to use ShowDialog() and also set the dialog result values appropriately, so you can use your dialog as you would an OpenFileDialog, for example:
if( openFileDialog.ShowDialog(this) == DialogResult.OK )
{
}
Matt Gerrans
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Matt,
I didn't ask you for your judgment i asked for some help. You unlike the other guy were of no assistance. Oh btw...I simplified the code down to a textbook manner so that i can get my point across without copying my entire file into the thread...next time give your opinion when asked for it.
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Okay, sorry about adding the editorial.  I removed that part, but I hope at least the part about the ShowDialog() and the DialogResults was helpful. 
Matt Gerrans
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You don't need to apoligize for correcting bad examples. Many times in this forum some people post bad examples that foster bad coding in other developers. Nothing leads to poor quality software than code written half-assed.
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Thanks that solved my problem.
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hello i have a custom control that inherits a rich textbox i had this control on my main form and then suddenly it dissapeared and i can no longer drag the control onto the form i do have a designer but it hasnt helped waht could possibly not allow me to be able to use my control at design time
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.Net Designer does not support the overloaded constructors of the controls in it, If your user control has some controls which have overloaded constructors, there is probability that your contituent controls get disappered when you drop it on the form.
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it just hase a normal constructor any other ideas?
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I am sorry, I was aware of this only.
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More than likely you left the default AssemblyVersionAttribute value in your AssemblyInfo.cs file with the asterisk (*) in it. Every time you compile your project the assembly version is changed. Unlike Win32 DLLs, the assembly version matters. A Type is a completely different Type even if the assembly which defines it differs in version.
So, either include a project dependency instead of a file dependency if both projets are in the same solution (after opening "Add Reference...", click the Project tab instead of the default .NET tab); or, define a constant version number and control your versioning. You'll need to remove the reference to your older assembly and include the new, hard-coded versioned assembly then re-add your control.
For more information about assembly versions read the .NET Framework SDK that was installed by defualt with VS.NET, is available stand-alone at http://msdn.microsoft.com/netframework[^], and that is available online at http://msdn.microsoft.com/library[^].
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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Hello, please can anyone help. I need the article and source code for the C# Sorted ListView by Carlos H. Perez, as it is not at the following link anymore.
http://www.codeproject.com/cs/miscctrl/sortedlistview.asp
If anyone has the sourcecode please can they send it me.
Kindest Regards
Mike
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Since you didn't sign in before you posted, anybody who wants to help you out can't because they can't email you through CP.
"A people that values its privileges above its principles soon loses both."
-- Dwight D. Eisenhower
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Is it possible to play ADPCM WAVE and WMA from memory? I'm reading a file into memory and taking sections of it which I know to be sound, some are 22050 kbps mono, some 44100 kbps stereo and some WMA. I can take the WMA data and dump it stright into a file, so I could just use Windows Media Player to play that, but I somehow need to create a header for the ADPCM sounds, all I've got is pure audio data. Any ideas?
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Of course it can be read from memory - that's how media players play files; they read them into memory and play them. The question is what are you using to play the sound? Are you interop'ing with the Windows Media Player typelib (having created an RCW, or Runtime Callable Wrapper - i.e., an "interop assembly")? If so, then no. Typelibs are meant to expose functionality to callers in a typically simple manner. Most callers would never need to play a file from memory.
If you were using the Managed DirectX[^] assemblies, however, you could use a MemoryStream as input to a DirectSound Buffer or another suitable class. Download and install the DirectX SDK, along with the managed assemblies for interoperability with the .NET Framework written from the ground up (not just simple inteorp assemblies or wrappers like some projects used before Managed DirectX 9).
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Sustained Engineering
Microsoft
[My Articles] [My Blog]
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Sorry I didn't make myself clear, the problem is I'm not sure how to play it, I've figured out the ADPCM header now, so the problem is playing the actual sound. DirectX seems to be the best way to go, can you give me a link to a tutorial or something?
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