New feature description and gif image added.

.gitignore

@@ -1,3 +1,4 @@
 out
 node_modules
-.DS_Store
+.DS_Store
+*.vsix

CHANGELOG.md

@@ -3,10 +3,12 @@
 ## Version 0.1.3: October 29, 2017
 
 Added command `OpenCL: Info` to show OpenCL platforms/devices info.
-The command is activated when a file with any of the supported extensions (`.cl`,`.ocl`,`.c`,`.cpp`) is opened.
+
+![vscode-opencl-cmd-oclinfo](https://raw.githubusercontent.com/Galarius/vscode-opencl/master/images/vscode-opencl-cmd-oclinfo.gif)
 
 *Only Win32 and macOS are supported.*
 
+*Requirements: OpenCL drivers and runtime libraries.*
 
 ## Version 0.1.2: October 3, 2017
 

README.md

@@ -12,16 +12,28 @@ This extension adds:
 * Code Snippets for some host and device functions
 * Command `OpenCL: Info` to show OpenCL platforms/devices info. (`linux` is not supported yet)
 
-![screen-autocomplete](https://raw.githubusercontent.com/Galarius/vscode-opencl/master/images/vscode-opencl-autocomplete.gif)  
-*Syntax Highlighting, Auto-Completion*
-
-![screen-snippet](https://raw.githubusercontent.com/Galarius/vscode-opencl/master/images/vscode-opencl-snippet.gif)  
-*Code Snippets*
+|![screen-autocomplete](https://raw.githubusercontent.com/Galarius/vscode-opencl/master/images/vscode-opencl-autocomplete.gif)|
+|-|
+|*Syntax Highlighting, Auto-Completion*|
+|![screen-snippet](https://raw.githubusercontent.com/Galarius/vscode-opencl/master/images/vscode-opencl-snippet.gif)|
+|*Code Snippets*|
+|![vscode-opencl-cmd-oclinfo](https://raw.githubusercontent.com/Galarius/vscode-opencl/master/images/vscode-opencl-cmd-oclinfo.gif)|
+|*OpenCL platforms/devices info*|
+||
 
 ## Prerequisites
 
+*[Required]*
+
 * [Visual Studio Code](https://code.visualstudio.com)
 
+*[Optional]*
+
+In order to run command `OpenCL: Info` on Windows:
+
+* Check that you have a device that supports OpenCL 
+* Make sure your OpenCL device driver is up to date. You can download drivers manually: [Intel](https://software.intel.com/en-us/articles/opencl-drivers), [NVidia](http://www.nvidia.com/Download/index.aspx), [AMD](http://support.amd.com/en-us/download) 
+
 ## How To Install This Extension
 
 ### **I.** Install from the Extensions pane
@@ -73,7 +85,17 @@ Here's a quick guide on `pull requests`:
    some feedback, but if you haven't heard back from me after a couple of days,
    feel free to leave a comment on the pull request.
 
-## OpenCL for Visual Studio Code Change Log
+## FAQ
+
+> Why `OpenCL: Info` command shows error?
+
+The command needs OpenCL drivers and run-time libraries to be installed on your system. They can be obtained e.g. from [Intel](https://software.intel.com/en-us/articles/opencl-drivers).
+
+> I am on Linux. Why can't I use `OpenCL: Info` command?
+
+It is not supported for now, but will be in future.
+
+## Change Log
 
 See [CHANGELOG.md](https://marketplace.visualstudio.com/items/galarius.vscode-opencl/changelog)
 

package.json

@@ -29,7 +29,8 @@
     "activationEvents": [
         "onLanguage:opencl",
         "onLanguage:c",
-        "onLanguage:cpp"
+        "onLanguage:cpp",
+        "onCommand:opencl.info"
     ],
     "main": "./out/extension",
     "contributes": {

src/oclinfo.ts

@@ -25,7 +25,7 @@ function execute(command: string): Promise<Buffer> {
         return result.stdout;
     }).fail(function(error) {
         console.error("Error: " + error);
-        vscode.window.showErrorMessage("Error: " + error);
+        vscode.window.showErrorMessage(error);
     }).progress(function(childProcess) {
         console.log("Command: " + command + " running...");
     });
@@ -52,7 +52,7 @@ export function oclinfoDumpAll() {
             vscode.window.showTextDocument(doc);
             }, (error: any) => {
                 console.error(error);
-                vscode.window.showErrorMessage("Error: " + error);
+                vscode.window.showErrorMessage(error);
             });
         });
     } else {