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Put Windows printer pop-up on top and centered
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (c) 2025 Paul Mattes. | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * * Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * * Neither the names of Paul Mattes nor the names of his contributors | ||
| * may be used to endorse or promote products derived from this software | ||
| * without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY PAUL MATTES "AS IS" AND ANY EXPRESS OR IMPLIED | ||
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | ||
| * EVENT SHALL PAUL MATTES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | ||
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | ||
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | ||
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
|
|
||
| /* | ||
| * main_window.c | ||
| * Support for a settable/displayable main window ID. | ||
| */ | ||
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| #include "globals.h" | ||
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| #if !defined(_WIN32) /*[*/ | ||
| #error This module is only for Win32. | ||
| #endif /*]*/ | ||
|
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| #include <errno.h> | ||
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| #include "appres.h" | ||
| #include "main_window.h" | ||
| #include "popups.h" | ||
| #include "resources.h" | ||
| #include "toggles.h" | ||
| #include "txa.h" | ||
| #include "utils.h" | ||
|
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| static const char *canonicalize_window_id(const char *value); | ||
|
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| #if defined(_WIN64) /*[*/ | ||
| # define PTRCONV strtoull | ||
| # define MAXVAL ULLONG_MAX | ||
| #else /*][*/ | ||
| # define PTRCONV strtoul | ||
| # define MAXVAL ULONG_MAX | ||
| #endif /*]*/ | ||
|
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| /* Get the handle for the main window. */ | ||
| HWND | ||
| get_main_window(void) | ||
| { | ||
| if (appres.window_id != NULL) { | ||
| return (HWND)PTRCONV(get_main_window_str(), NULL, 0); | ||
| } else { | ||
| return INVALID_HANDLE_VALUE; | ||
| } | ||
| } | ||
|
|
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| const char * | ||
| get_main_window_str(void) | ||
| { | ||
| return canonicalize_window_id(appres.window_id); | ||
| } | ||
|
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| /* Set the handle for the main window. */ | ||
| void | ||
| set_main_window(HWND hwnd) | ||
| { | ||
| Replace(appres.window_id, Asprintf("0x%p", hwnd)); | ||
| } | ||
|
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| /* Toggle the window ID. */ | ||
| static toggle_upcall_ret_t | ||
| toggle_window_id(const char *name _is_unused, const char *value, unsigned flags, ia_t ia) | ||
| { | ||
| size_t l; | ||
| char *nextp; | ||
|
|
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| if (!*value) { | ||
| Replace(appres.window_id, NULL); | ||
| return TU_SUCCESS; | ||
| } | ||
|
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| errno = 0; | ||
| l = PTRCONV(value, &nextp, 0); | ||
| if (*nextp != '\0' || (l == MAXVAL && errno == ERANGE)) { | ||
| popup_an_error("Invalid " ResWindowId " value"); | ||
| return TU_FAILURE; | ||
| } | ||
|
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| Replace(appres.window_id, Asprintf("0x%p", (void *)(size_t)l)); | ||
| return TU_SUCCESS; | ||
| } | ||
|
|
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| /* Canonnicalize the window ID. */ | ||
| static const char * | ||
| canonicalize_window_id(const char *value) | ||
| { | ||
| size_t l = (size_t)INVALID_HANDLE_VALUE; | ||
| char *nextp; | ||
|
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| if (value != NULL && *value) { | ||
| size_t ld; | ||
|
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| errno = 0; | ||
| ld = PTRCONV(value, &nextp, 0); | ||
| if (*nextp == '\0' && (ld != MAXVAL || errno != ERANGE)) { | ||
| l = ld; | ||
| } | ||
| } | ||
|
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| return txAsprintf("0x%p", (void *)l); | ||
| } | ||
|
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| /* Register toggles. */ | ||
| void | ||
| main_window_register(void) | ||
| { | ||
| /* Register the toggle. */ | ||
| register_extended_toggle(ResWindowId, toggle_window_id, NULL, canonicalize_window_id, | ||
| (void **)&appres.window_id, XRM_STRING); | ||
| } |
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