I have an application that would create a file of some extension, let say .ext, and assign an icon to it. The problem is that, I can create many .ext files and all of them should have different icons.
For eg:
foo.ext --> icon as foo.png
bar.ext --> icon as bar.png
I can register my application to open the specific extension (.ext in this case) and do the required task, but I don't know how to show different icons to different files.
Is it possible to do so? I am using c#, but a native API in c/c++ would also do.
Thanks,
John
You need to create an icon handler shell extension.
Related
I am writing a simple game for my course work. The application contains many pictureboxes with no images inside them. I also have a directory with needed pictures in the Visual Studio project debug folder. I need to put the pictures' paths into an array in my program to then randomly insert them into pictureboxes.
The problem is I don't know how it would work on another computer, so I can't organize all the things. The game must be launched without using Visual Studio there, only exe file. Should I first make the installation setup of my unfinished program, or something like this, and then place the application with resources somewhere on disk to know where all my pictures would be on any computer? And then maybe I could determine the exact path where I would take all the pictures and put them into the array. Or vice versa... I'm totally confused with this.
Here what I use to fill the array:
string[] spritePaths = Directory.GetFiles(/*paths*/);
Is it possible for you to distribute the pictures in a folder with the .exe file? If so, you could use a relative path to get all of the pictures.
string[] spritePaths = Directory.GetFiles("pictureFolder");
As DangerZone suggests, you could also add your images as embedded resources.
https://support.microsoft.com/en-us/help/319292/how-to-embed-and-access-resources-by-using-visual-c
Here are a few options:
Specify the path to the folder of images as a command line argument. Then you can launch it from CMD, or create a shortcut and specify the arguments there.
Add a TextBox for the user to enter the path to the images.
Add a browse button or menu button and allow the user to search for the folder using a dialog.
Use a predefined location, such as an images folder next to the exe.
I wrote an image viewer application in C# to replace Windows 7 Photo Viewer which does not have the one feature I needed, which was to set the ratings and keywords directly from the view screen and not by opening some less user-friendly property pages. It works Ok for my need, but I wanted to improve it with a slideshow.
With Windows 7 Photo Viewer, what I usually did was I set the keywords of the picture, I used Windows Explorer "organize by" feature, clicked one keyword, double-clicked one file and run the slideshow from there.
But when I double-click a file from the keyword-"organized" folder in Windows Explorer, all my app gets is the command-line argument, i.e. the full name of the file.
I could admit running my slideshow from there, using System.IO.Path.GetDirectoryName to get all files from the folder, but I find it lacks a certain "panache", don't you think?
I am not asking for code here. But could someone just point me in the right direction, please? I don't know what WindowsExplorer actually gives PhotoViewer that allows it to only show the required files. And why.
Thanks for any help.
When you use Organize by feature of Windows Explorer it creates special virtual folder. And this folder contains files with selected keyword only. Mechanism of opening of PhotoViewer differs from standard way. If you open HKEY_CLASSES_ROOT\jpegfile\shell\open registry key you will see that where is DropTarget subkey. It means when you double-clicked the file shell creates inproc com server with CLSID from DropTarget subkey and pass virtual path of image to IDropTarget instance. So PhotoViewer work with list of virtual objects instead of physical directory.
I am building an add-in which requires selection of multiple outlook folders. For that purpose I created selection dialog that lists folders and allows user to select one or more by checking the check boxes next to tree view items.
I was hoping that somehow I could read/get the outlook folder icons from my add in code which is written in C# (any solution that works with outlook object model would do).
I was trying hard around MAPIFolder.GetCustomIcon but it returns null for all folders and when you read the documentation it is clear that it is not meant for this i.e. it returns value only if folder has custom icon and if it is not any of default folders.
http://msdn.microsoft.com/en-us/library/microsoft.office.interop.outlook.mapifolder.getcustomicon%28v=office.14%29.aspx
Thanks for reading.
You'll have to use an icon editing tool (like Axialis Icon Workshop) that can extract icon and image resources from related Outlook .dll and .exe files. It's a real mess to figure out what icon is where there as they exist in small and large quantities in very many different files.
I would like to have a function for my application such that dragging any file in Windows Explorer to a file having the correct format for my application adds that first file to the second, like with WinZip, 7-zip etc. Example, if I drag a file onto another zip file, it initiates the default application for Zip (in my case 7-zip) and adds it to the zip archive I drop it onto.
I've tried searching for a way to do this on Google, but I don't know what this type of function would be called or the correct keywords I should use. Referencing drag and drop, shell extensions etc. all points me to dragging a file from the Shell into my application or vice versa which I know how to do. Can anyone point me in the direction of what I should be searching for, or even better has some example code/tutorial on how to achieve this?
Well, searching for Shell extensions was correct. There is a github project that makes it easy to create shell extensions in .Net: https://github.com/dwmkerr/sharpshell
One of them is a drop handler, and that is what you're looking for if I understand your question right. There are some tutorials on how to use SharpShell on CodeProject, this one specific for the drop handler: http://www.codeproject.com/Articles/529515/NET-Shell-Extensions-Shell-Drop-Handlers
I am working on a file explorer using Silverlight OOB. I need a way to get and display the icon associated with each file in my application. Note, I only need to show the icons, I don´t need to open the files.
If I understood you right, you're building something like Windows Explorer and want to mimic its list view by showing the program icons right before their names.
I'm not sure whether OOB has access to the System.Drawing.Icon class, but if so, you can use the following code to get the icon for any given file:
Bitmap icon = System.Drawing.Icon.ExtractAssociatedIcon(filename).ToBitmap();
If not, the only way you can do it is by storing the icons for most common file formats in a dictionary and retrieving them from there based upon file extension.