Support Board

// Include the Sierra Chart header and necessary Windows API functions
#include "sierrachart.h"
#include <windows.h>
#include <stdio.h>

SCDLLName("Export Chart Symbol Study");

SCSFExport scsf_ExportChartSymbol(SCStudyInterfaceRef sc)
{
if (sc.SetDefaults)
{
sc.GraphName = "Export Chart Symbol";
sc.StudyDescription = "Exports the chart symbol to a single file when the chart is clicked (triggered on mouse down).";
sc.AutoLoop = 1; // Run on every update.
sc.UpdateAlways = 1; // Force continuous updates.
return;
}

// Persistent variable to ensure we trigger only once per click.
int &clickTriggered = sc.GetPersistentInt(1);

// Check current state of the left mouse button.
bool isMouseDown = ((GetAsyncKeyState(VK_LBUTTON) & 0x8000) != 0);

// Get this chart's window handle.
HWND hChart = sc.GetChartWindowHandle(sc.ChartNumber);

// Determine if the mouse cursor is inside the chart window.
bool cursorInChart = false;
POINT pt;
if (GetCursorPos(&pt))
{
RECT rect;
if (GetWindowRect(hChart, &rect))
{
if (pt.x >= rect.left && pt.x <= rect.right &&
pt.y >= rect.top && pt.y <= rect.bottom)
{
cursorInChart = true;
}
}
}

// Trigger export immediately when the mouse goes down inside the chart,
// but only if we haven't already triggered for this click.
if (isMouseDown && cursorInChart && (clickTriggered == 0))
{
SCString chartSymbol = sc.GetChartSymbol(sc.ChartNumber);
const char* filePath = "C:\\SierraChartSymbols\\chart_symbol.txt";
FILE* f = fopen(filePath, "w");
if (f != NULL)
{
fprintf(f, "%s", chartSymbol.GetChars());
fclose(f);
sc.AddMessageToLog("Exported chart symbol to file.", 0);
}
else
{
sc.AddMessageToLog("Failed to open file for writing the chart symbol.", 1);
}
clickTriggered = 1;
}

// Reset the trigger when the mouse button is released.
if (!isMouseDown)
{
clickTriggered = 0;
}
}