From 066f774c95f2a4ca14e12b4d178441e8527bf256 Mon Sep 17 00:00:00 2001
From: m1maker <georgijbondarenko248@gmail.com>
Date: Sun, 26 Jan 2025 13:55:38 +0300
Subject: [PATCH] Add NVDAControl impl files (Use the named pipe).

---
 Dep/nvda_control.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++
 Dep/nvda_control.h | 72 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 151 insertions(+)
 create mode 100644 Dep/nvda_control.c
 create mode 100644 Dep/nvda_control.h

diff --git a/Dep/nvda_control.c b/Dep/nvda_control.c
new file mode 100644
index 0000000..8e29202
--- /dev/null
+++ b/Dep/nvda_control.c
@@ -0,0 +1,79 @@
+#include "nvda_control.h"
+
+// Connects to the NVDA named pipe
+HANDLE nvda_connect() {
+    HANDLE hPipe = CreateFile(
+        NVDA_PIPE_NAME,          // Pipe name
+        GENERIC_READ | GENERIC_WRITE, // Read and write access
+        0,                       // No sharing
+        NULL,                    // Default security attributes
+        OPEN_EXISTING,           // Opens existing pipe
+        0,                       // Default attributes
+        NULL                     // No template file
+    );
+
+    return hPipe;
+}
+
+// Disconnects from the NVDA named pipe
+void nvda_disconnect(HANDLE hPipe) {
+    if (hPipe != INVALID_HANDLE_VALUE) {
+        CloseHandle(hPipe);
+    }
+}
+
+// Sends a command to the NVDA named pipe
+int nvda_send_command(HANDLE hPipe, const char* command) {
+    if (hPipe == INVALID_HANDLE_VALUE) {
+        return -1;
+    }
+
+    DWORD bytesWritten;
+    BOOL result = WriteFile(
+        hPipe,                   // Pipe handle
+        command,                 // Command to send
+        (DWORD)strlen(command),  // Length of command
+        &bytesWritten,           // Bytes written
+        NULL                     // Not overlapped
+    );
+
+    if (!result) {
+        fprintf(stderr, "Failed to send command. Error: %lu\n", GetLastError());
+        return -1;
+    }
+
+    return 0;
+}
+
+// Sends a "speak" command to NVDA
+int nvda_speak(HANDLE hPipe, const char* text) {
+    char command[64000];
+    snprintf(command, sizeof(command), "speak \"%s\"", text);
+    return nvda_send_command(hPipe, command);
+}
+
+// Sends a "speakSpelling" command to NVDA
+int nvda_speak_spelling(HANDLE hPipe, const char* text) {
+    char command[64000];
+    snprintf(command, sizeof(command), "speakSpelling \"%s\"", text);
+    return nvda_send_command(hPipe, command);
+}
+
+// Sends a "speakSsml" command to NVDA
+int nvda_speak_ssml(HANDLE hPipe, const char* ssml) {
+    char command[64000];
+    snprintf(command, sizeof(command), "speakSsml \"%s\"", ssml);
+    return nvda_send_command(hPipe, command);
+}
+
+// Sends a "pauseSpeech" command to NVDA
+int nvda_pause_speech(HANDLE hPipe, int pause) {
+    char command[256];
+    snprintf(command, sizeof(command), "pauseSpeech %d", pause);
+    return nvda_send_command(hPipe, command);
+}
+
+// Sends a "cancelSpeech" command to NVDA
+int nvda_cancel_speech(HANDLE hPipe) {
+    return nvda_send_command(hPipe, "cancelSpeech");
+}
diff --git a/Dep/nvda_control.h b/Dep/nvda_control.h
new file mode 100644
index 0000000..72046be
--- /dev/null
+++ b/Dep/nvda_control.h
@@ -0,0 +1,72 @@
+#ifndef NVDA_CONTROL_H
+#define NVDA_CONTROL_H
+
+#include <windows.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// Named pipe name
+#define NVDA_PIPE_NAME L"\\\\.\\pipe\\NVDAControlPipe"
+
+
+/**
+ * Connects to the NVDA named pipe.
+ * Returns a handle to the pipe if successful, or INVALID_HANDLE_VALUE on failure.
+ */
+HANDLE nvda_connect();
+
+/**
+ * Disconnects from the NVDA named pipe.
+ * @param hPipe Handle to the pipe.
+ */
+void nvda_disconnect(HANDLE hPipe);
+
+/**
+ * Sends a command to the NVDA named pipe.
+ * @param hPipe Handle to the pipe.
+ * @param command The command to send.
+ * @return 0 on success, -1 on failure.
+ */
+int nvda_send_command(HANDLE hPipe, const char* command);
+
+/**
+ * Sends a "speak" command to NVDA.
+ * @param hPipe Handle to the pipe.
+ * @param text The text to speak.
+ * @return 0 on success, -1 on failure.
+ */
+int nvda_speak(HANDLE hPipe, const char* text);
+
+/**
+ * Sends a "speakSpelling" command to NVDA.
+ * @param hPipe Handle to the pipe.
+ * @param text The text to spell.
+ * @return 0 on success, -1 on failure.
+ */
+int nvda_speak_spelling(HANDLE hPipe, const char* text);
+
+/**
+ * Sends a "speakSsml" command to NVDA.
+ * @param hPipe Handle to the pipe.
+ * @param ssml The SSML text to speak.
+ * @return 0 on success, -1 on failure.
+ */
+int nvda_speak_ssml(HANDLE hPipe, const char* ssml);
+
+/**
+ * Sends a "pauseSpeech" command to NVDA.
+ * @param hPipe Handle to the pipe.
+ * @param pause 1 to pause, 0 to unpause.
+ * @return 0 on success, -1 on failure.
+ */
+int nvda_pause_speech(HANDLE hPipe, int pause);
+
+/**
+ * Sends a "cancelSpeech" command to NVDA.
+ * @param hPipe Handle to the pipe.
+ * @return 0 on success, -1 on failure.
+ */
+int nvda_cancel_speech(HANDLE hPipe);
+
+#endif // NVDA_CONTROL_H