To: vim-dev@vim.org
Subject: Patch 7.2.088 (extra)
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
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------------

Patch 7.2.088 (extra)
Problem:    OpenClipboard() may fail when another application is using the
	    clipboard.
Solution:   Retry OpenClipboard() a few times. (Jianrong Yu)
Files:	    src/os_mswin.c


*** ../vim-7.2.087/src/os_mswin.c	Thu Nov 20 17:09:09 2008
--- src/os_mswin.c	Thu Jan 22 18:38:12 2009
***************
*** 1224,1229 ****
--- 1224,1248 ----
  #endif /* FEAT_MBYTE */
  
  /*
+  * Wait for another process to Close the Clipboard.
+  * Returns TRUE for success.
+  */
+     int
+ vim_open_clipboard()
+ {
+     int delay = 10;
+ 
+     while (!OpenClipboard(NULL))
+     {
+         if (delay > 500)
+             return FALSE;  /* waited too long, give up */
+         Sleep(delay);
+         delay *= 2;	/* wait for 10, 20, 40, 80, etc. msec */
+     }
+     return TRUE;
+ }
+ 
+ /*
   * Get the current selection and put it in the clipboard register.
   *
   * NOTE: Must use GlobalLock/Unlock here to ensure Win32s compatibility.
***************
*** 1254,1260 ****
       * Don't pass GetActiveWindow() as an argument to OpenClipboard() because
       * then we can't paste back into the same window for some reason - webb.
       */
!     if (!OpenClipboard(NULL))
  	return;
  
      /* Check for vim's own clipboard format first.  This only gets the type of
--- 1273,1279 ----
       * Don't pass GetActiveWindow() as an argument to OpenClipboard() because
       * then we can't paste back into the same window for some reason - webb.
       */
!     if (!vim_open_clipboard())
  	return;
  
      /* Check for vim's own clipboard format first.  This only gets the type of
***************
*** 1562,1568 ****
       * because then we can't paste back into the same window for some
       * reason - webb.
       */
!     if (OpenClipboard(NULL))
      {
  	if (EmptyClipboard())
  	{
--- 1581,1587 ----
       * because then we can't paste back into the same window for some
       * reason - webb.
       */
!     if (vim_open_clipboard())
      {
  	if (EmptyClipboard())
  	{
*** ../vim-7.2.087/src/version.c	Thu Jan 22 21:31:24 2009
--- src/version.c	Thu Jan 22 21:47:52 2009
***************
*** 678,679 ****
--- 678,681 ----
  {   /* Add new patch number below this line */
+ /**/
+     88,
  /**/

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 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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