[Closed] catching mouseclicks

Thanks for the help guys,

I’ve written yet another screencapture script to capture stills which uses this timer. This one however is not limited to viewports. It can capture any window or control inside or outside 3dsMax.

Check out the blog and download it here

Great stuff and I really like your code, clean and easy to read! Congrats and thanks.

Thanks Artur, that’s appreciated!
I’ve left one feature out however which I didn’t get to work. Maybe you have some ideas.
I want to preview the window the mouse is hovering over by outlining it with a red border. This happens a lot in other screencapture programs and it makes the user a lot more aware of what he’s actually going to capture. I have some code, but it draws the borders inconsistently and also removes them inconsistently. It gives you a rough idea however of what I’m trying to do.
Here’s the script
And here is the assembly I’m using to make it happen

				str="using System;
"
 				str+="using System.Runtime.InteropServices;
"
 				str+="using System.Drawing;
"
 				str+="namespace HotTrack
"
 				str+="{
"
 				
 				str+="class DrawOnScreen
"
 				str+="{
"
 				--these flags:  http://www.blitzbasic.com/Community/posts.php?topic=32334 
 				str+="  private const int RDW_FRAME = 0x0400;
"
 				str+="  private const int RDW_INVALIDATE = 0x0001;
"
 				str+="  private const int RDW_UPDATENOW =  0x0100;
"
 				str+="  private const int RDW_ALLCHILDREN =  0x0080;
"
 				str+="  public static Graphics G;
" --move the Graphics object out here.
 				
 				str+="	 [DllImport(\"user32.dll\")]
"
 				str+="	 private static extern IntPtr GetWindowDC(IntPtr hWnd);
" 
 				str+="	 [DllImport(\"user32.dll\")]
"
 				str+="	 private static extern bool InvalidateRect(IntPtr hWnd, IntPtr lpRect, bool bErase );
" 
 				str+="	 [DllImport(\"user32.dll\")]
"
 				str+="	 private static extern bool UpdateWindow(IntPtr hWnd);
" 
 				str+="	 [DllImport(\"user32.dll\")]
"
 				str+="	 private static extern bool RedrawWindow(IntPtr hWnd, IntPtr lprcUpdate, IntPtr hrgnUpdate, int flags);
" 
 				str+="	 [DllImport(\"user32.dll\")]
"
 				str+="	 public static extern bool ReleaseDC(IntPtr hWnd, IntPtr hDC);
" 
 				
 				--resetting the window fails inconsistently. sometimes the red border is removed, sometimes not
 				str+="	 public static void ResetWindow(IntPtr hWnd)
"
 				str+="   {
"
 				str+="	   InvalidateRect(hWnd, IntPtr.Zero, true);
"
 				str+="	   UpdateWindow(hWnd);
"
 				str+="	   RedrawWindow(hWnd, IntPtr.Zero, IntPtr.Zero, RDW_FRAME | RDW_INVALIDATE | RDW_UPDATENOW | RDW_ALLCHILDREN);
"
 				str+="	}
"
 				
 				-- http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/c581ef21-2833-47e5-90d7-9b8c4f38646c/ 
 				str+="	 public void DrawWindow(IntPtr hWnd, int width, int height)
"
 				str+="   {
"
 				str+="	   IntPtr hdc = GetWindowDC(hWnd);
"
 				str+="	   using (var pen = new Pen(Color.Red, 4))
"
 				str+="	   {
"
 				str+="		   using (G = Graphics.FromHdc(hdc))
"				
 				str+="		   {
"
 				str+="				G.DrawRectangle(pen, 2,2, width-4, height-4);
"
 				str+="		   }
"
 				str+="	   }
"
 				str+="	   ReleaseDC(hWnd, hdc);
"
 				str+="	}
"
 				str+="}
"
 				str+="}
"