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[185.47.220.165]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-45f3211e8c7sm105424825e9.3.2025.09.20.16.46.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 20 Sep 2025 16:46:17 -0700 (PDT) From: Filip Hejsek Date: Sun, 21 Sep 2025 01:45:40 +0200 Subject: [PATCH RFC v5 10/12] char-win-stdio: add support for terminal size MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250921-console-resize-v5-10-89e3c6727060@gmail.com> References: <20250921-console-resize-v5-0-89e3c6727060@gmail.com> In-Reply-To: <20250921-console-resize-v5-0-89e3c6727060@gmail.com> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , "Michael S. Tsirkin" , Laurent Vivier , Amit Shah , Markus Armbruster , Eric Blake , Eduardo Habkost , Marcel Apfelbaum , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Yanan Wang , Zhao Liu , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Maximilian Immanuel Brandtner , Filip Hejsek X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1758411962; l=1846; i=filip.hejsek@gmail.com; s=20250912; h=from:subject:message-id; bh=RpmrNCBfhehDN2KMtvbOsM7e+VeevQ6dar8otPhjqkc=; b=pIhnB+u00U1PrullOsS5NEEVLFKNPZT2VD9JWRKOQb6PO/R6GfNtx2EWB5fcZYucWwVXqp/9Z 6UOod8SH9ZIAn6zVm+OH8f0Uqz07e8/DqTXZi7A4O21HxIA6R5+0TEA X-Developer-Key: i=filip.hejsek@gmail.com; a=ed25519; pk=nakB8gEK3oi+Q/5dBTMCy/LgZL47NP60z1jeDR6O/WU= Received-SPF: pass client-ip=2a00:1450:4864:20::429; envelope-from=filip.hejsek@gmail.com; helo=mail-wr1-x429.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Use GetConsoleScreenBufferInfo to obtain terminal size and set ENABLE_WINDOW_INPUT to receive resize notifications. Signed-off-by: Filip Hejsek --- chardev/char-win-stdio.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/chardev/char-win-stdio.c b/chardev/char-win-stdio.c index fb802a00b13ac4089abf3bd4f8c4198d8325764b..0d33138d0dd83b582e959d21c3d991de52f8d3e4 100644 --- a/chardev/char-win-stdio.c +++ b/chardev/char-win-stdio.c @@ -44,6 +44,20 @@ typedef struct WinStdioChardev WinStdioChardev; DECLARE_INSTANCE_CHECKER(WinStdioChardev, WIN_STDIO_CHARDEV, TYPE_CHARDEV_WIN_STDIO) +static void char_win_stdio_resize(Chardev *chr) +{ + HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); + CONSOLE_SCREEN_BUFFER_INFO ScreenBufferInfo; + + if (GetConsoleScreenBufferInfo(hStdOut, &ScreenBufferInfo)) { + uint16_t cols = ScreenBufferInfo.srWindow.Right + 1 + - ScreenBufferInfo.srWindow.Left; + uint16_t rows = ScreenBufferInfo.srWindow.Bottom + 1 + - ScreenBufferInfo.srWindow.Top; + qemu_chr_resize(chr, cols, rows); + } +} + static void win_stdio_wait_func(void *opaque) { Chardev *chr = CHARDEV(opaque); @@ -75,6 +89,9 @@ static void win_stdio_wait_func(void *opaque) } } } + if (buf[i].EventType == WINDOW_BUFFER_SIZE_EVENT) { + char_win_stdio_resize(chr); + } } } @@ -202,6 +219,8 @@ static void qemu_chr_open_stdio(Chardev *chr, } else { dwMode &= ~ENABLE_PROCESSED_INPUT; } + dwMode |= ENABLE_WINDOW_INPUT; + char_win_stdio_resize(chr); } SetConsoleMode(stdio->hStdIn, dwMode); -- 2.51.0