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/*
* tkWin32Dll.c --
*
* This file contains a stub dll entry point.
*
* Copyright (c) 1995 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tkWin32Dll.c,v 1.7 2003/12/21 23:50:13 davygrvy Exp $
*/
#include "tkWinInt.h"
#ifndef STATIC_BUILD
/*
* The following declaration is for the VC++ DLL entry point.
*/
BOOL APIENTRY DllMain _ANSI_ARGS_((HINSTANCE hInst,
DWORD reason, LPVOID reserved));
/*
*----------------------------------------------------------------------
*
* DllEntryPoint --
*
* This wrapper function is used by Borland to invoke the
* initialization code for Tk. It simply calls the DllMain
* routine.
*
* Results:
* See DllMain.
*
* Side effects:
* See DllMain.
*
*----------------------------------------------------------------------
*/
BOOL APIENTRY
DllEntryPoint(hInst, reason, reserved)
HINSTANCE hInst; /* Library instance handle. */
DWORD reason; /* Reason this function is being called. */
LPVOID reserved; /* Not used. */
{
return DllMain(hInst, reason, reserved);
}
/*
*----------------------------------------------------------------------
*
* DllMain --
*
* DLL entry point. It is only necessary to specify our dll here so
* that resources are found correctly. Otherwise Tk will initialize
* and clean up after itself through other methods, in order to be
* consistent whether the build is static or dynamic.
*
* Results:
* Always TRUE.
*
* Side effects:
* This might call some sycronization functions, but MSDN
* documentation states: "Waiting on synchronization objects in
* DllMain can cause a deadlock."
*
*----------------------------------------------------------------------
*/
BOOL APIENTRY
DllMain(hInstance, reason, reserved)
HINSTANCE hInstance;
DWORD reason;
LPVOID reserved;
{
/*
* If we are attaching to the DLL from a new process, tell Tk about
* the hInstance to use.
*/
switch (reason) {
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hInstance);
TkWinSetHINSTANCE(hInstance);
break;
case DLL_PROCESS_DETACH:
/*
* Protect the call to TkFinalize in an SEH block. We can't
* be guarenteed Tk is always being unloaded from a stable
* condition.
*/
__try {
/*
* Run and remove our exit handlers, if they haven't already
* been run. Just in case we are being unloaded prior to
* Tcl (it can happen), we won't leave any dangling pointers
* hanging around for when Tcl gets unloaded later.
*/
TkFinalize(NULL);
} __except (EXCEPTION_EXECUTE_HANDLER) {
/* empty handler body */
}
break;
}
return TRUE;
}
#endif /* !STATIC_BUILD */
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