Import Tk 8.5.15 (as of svn r89086)

win/tkWinInit.c

@@ -0,0 +1,156 @@
+/*
+ * 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_GetVar(interp, "argv0", 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((char *)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 msgString[TK_MAX_WARN_LEN + 5];
+    WCHAR titleString[TK_MAX_WARN_LEN + 1];
+
+    /* 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 */
+
+    MultiByteToWideChar(CP_UTF8, 0, msg, -1, msgString, TK_MAX_WARN_LEN);
+    MultiByteToWideChar(CP_UTF8, 0, title, -1, titleString, TK_MAX_WARN_LEN);
+    /*
+     * Truncate MessageBox string if it is too long to not overflow the screen
+     * and cause possible oversized window error.
+     */
+	memcpy(msgString + TK_MAX_WARN_LEN, L" ...", 5 * sizeof(WCHAR));
+    titleString[TK_MAX_WARN_LEN] = L'\0';
+    MessageBoxW(NULL, msgString, titleString,
+	    MB_OK | MB_ICONEXCLAMATION | MB_SYSTEMMODAL
+	    | MB_SETFOREGROUND | MB_TOPMOST);
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */