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/*
* tkWinInit.c --
*
* This file contains Windows-specific interpreter initialization
* functions.
*
* Copyright (c) 1995-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tkWinInt.h"
/*
*----------------------------------------------------------------------
*
* TkpInit --
*
* Performs Windows-specific interpreter initialization related to the
* tk_library variable.
*
* Results:
* A standard Tcl completion code (TCL_OK or TCL_ERROR). Also leaves
* information in the interp's result.
*
* Side effects:
* Sets "tk_library" Tcl variable, runs "tk.tcl" script.
*
*----------------------------------------------------------------------
*/
int
TkpInit(
Tcl_Interp *interp)
{
/*
* This is necessary for static initialization, and is ok otherwise
* because TkWinXInit flips a static bit to do its work just once.
*/
TkWinXInit(Tk_GetHINSTANCE());
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TkpGetAppName --
*
* Retrieves the name of the current application from a platform specific
* location. For Windows, the application name is the root of the tail of
* the path contained in the tcl variable argv0.
*
* Results:
* Returns the application name in the given Tcl_DString.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkpGetAppName(
Tcl_Interp *interp,
Tcl_DString *namePtr) /* A previously initialized Tcl_DString. */
{
int argc, namelength;
const char **argv = NULL, *name, *p;
name = Tcl_GetVar2(interp, "argv0", NULL, TCL_GLOBAL_ONLY);
namelength = -1;
if (name != NULL) {
Tcl_SplitPath(name, &argc, &argv);
if (argc > 0) {
name = argv[argc-1];
p = strrchr(name, '.');
if (p != NULL) {
namelength = p - name;
}
} else {
name = NULL;
}
}
if ((name == NULL) || (*name == 0)) {
name = "tk";
namelength = -1;
}
Tcl_DStringAppend(namePtr, name, namelength);
if (argv != NULL) {
ckfree(argv);
}
}
/*
*----------------------------------------------------------------------
*
* TkpDisplayWarning --
*
* This routines is called from Tk_Main to display warning messages that
* occur during startup.
*
* Results:
* None.
*
* Side effects:
* Displays a message box.
*
*----------------------------------------------------------------------
*/
void
TkpDisplayWarning(
const char *msg, /* Message to be displayed. */
const char *title) /* Title of warning. */
{
#define TK_MAX_WARN_LEN 1024
WCHAR titleString[TK_MAX_WARN_LEN];
WCHAR *msgString; /* points to titleString, just after title, leaving space for ": " */
int len; /* size of title, including terminating NULL */
/* If running on Cygwin and we have a stderr channel, use it. */
#if !defined(STATIC_BUILD)
if (tclStubsPtr->reserved9) {
Tcl_Channel errChannel = Tcl_GetStdChannel(TCL_STDERR);
if (errChannel) {
Tcl_WriteChars(errChannel, title, -1);
Tcl_WriteChars(errChannel, ": ", 2);
Tcl_WriteChars(errChannel, msg, -1);
Tcl_WriteChars(errChannel, "\n", 1);
return;
}
}
#endif /* !STATIC_BUILD */
len = MultiByteToWideChar(CP_UTF8, 0, title, -1, titleString, TK_MAX_WARN_LEN);
msgString = &titleString[len + 1];
titleString[TK_MAX_WARN_LEN - 1] = L'\0';
MultiByteToWideChar(CP_UTF8, 0, msg, -1, msgString, (TK_MAX_WARN_LEN - 1) - len);
/*
* Truncate MessageBox string if it is too long to not overflow the screen
* and cause possible oversized window error.
*/
if (titleString[TK_MAX_WARN_LEN - 1] != L'\0') {
memcpy(titleString + (TK_MAX_WARN_LEN - 5), L" ...", 5 * sizeof(WCHAR));
}
if (IsDebuggerPresent()) {
titleString[len - 1] = L':';
titleString[len] = L' ';
OutputDebugStringW(titleString);
} else {
titleString[len - 1] = L'\0';
MessageBoxW(NULL, msgString, titleString,
MB_OK | MB_ICONEXCLAMATION | MB_SYSTEMMODAL
| MB_SETFOREGROUND | MB_TOPMOST);
}
}
/*
* ----------------------------------------------------------------------
*
* Win32ErrorObj --
*
* Returns a string object containing text from a COM or Win32 error code
*
* Results:
* A Tcl_Obj containing the Win32 error message.
*
* Side effects:
* Removed the error message from the COM threads error object.
*
* ----------------------------------------------------------------------
*/
Tcl_Obj*
TkWin32ErrorObj(
HRESULT hrError)
{
LPTSTR lpBuffer = NULL, p = NULL;
TCHAR sBuffer[30];
Tcl_Obj* errPtr = NULL;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS, NULL, (DWORD)hrError,
LANG_NEUTRAL, (LPTSTR)&lpBuffer, 0, NULL);
if (lpBuffer == NULL) {
lpBuffer = sBuffer;
wsprintf(sBuffer, TEXT("Error Code: %08lX"), hrError);
}
if ((p = _tcsrchr(lpBuffer, TEXT('\r'))) != NULL) {
*p = TEXT('\0');
}
#ifdef _UNICODE
errPtr = Tcl_NewUnicodeObj(lpBuffer, (int)wcslen(lpBuffer));
#else
errPtr = Tcl_NewStringObj(lpBuffer, (int)strlen(lpBuffer));
#endif /* _UNICODE */
if (lpBuffer != sBuffer) {
LocalFree((HLOCAL)lpBuffer);
}
return errPtr;
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/
|
