diff options
Diffstat (limited to 'win/tclWinFile.c')
| -rw-r--r-- | win/tclWinFile.c | 53 |
1 files changed, 49 insertions, 4 deletions
diff --git a/win/tclWinFile.c b/win/tclWinFile.c index 6ef6f8c..0cd5f94 100644 --- a/win/tclWinFile.c +++ b/win/tclWinFile.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclWinFile.c,v 1.116 2010/11/03 12:09:23 nijtmans Exp $ + * RCS: @(#) $Id: tclWinFile.c,v 1.117 2010/12/13 13:57:58 nijtmans Exp $ */ #include "tclWinInt.h" @@ -784,6 +784,49 @@ NativeWriteReparse( } /* + *---------------------------------------------------------------------- + * + * WishPanic -- + * + * Display a message. + * + * Results: + * None. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static void +PanicMessageBox( + const char *format, ...) +{ +#define TCL_MAX_WARN_LEN 1024 + va_list argList; + char buf[TCL_MAX_WARN_LEN * TCL_UTF_MAX]; + WCHAR msgString[TCL_MAX_WARN_LEN]; + + va_start(argList, format); + vsnprintf(buf, sizeof(buf), format, argList); + + msgString[TCL_MAX_WARN_LEN-1] = L'\0'; + MultiByteToWideChar(CP_UTF8, 0, buf, -1, msgString, TCL_MAX_WARN_LEN); + /* + * Truncate MessageBox string if it is too long to not overflow the screen + * and cause possible oversized window error. + */ + if (msgString[TCL_MAX_WARN_LEN-1] != L'\0') { + memcpy(msgString + (TCL_MAX_WARN_LEN - 5), L" ...", 5 * sizeof(WCHAR)); + } + MessageBeep(MB_ICONEXCLAMATION); + MessageBoxW(NULL, msgString, L"Fatal Error", + MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND); + /* We don't need to abort here, because our caller already does. */ +} + +/* *--------------------------------------------------------------------------- * * TclpFindExecutable -- @@ -802,16 +845,18 @@ NativeWriteReparse( void TclpFindExecutable( - const char *argv0) /* The value of the application's argv[0] - * (native). */ + const char *argv0) /* If NULL, install PanicMessageBox, otherwise ignore */ { WCHAR wName[MAX_PATH]; char name[MAX_PATH * TCL_UTF_MAX]; /* * Under Windows we ignore argv0, and return the path for the file used to - * create this process. + * create this process. Only if it is NULL, install a new panic handler. */ + if (argv0 == NULL) { + Tcl_SetPanicProc(PanicMessageBox); + } #ifdef UNICODE GetModuleFileNameW(NULL, wName, MAX_PATH); |