Support Board
Date/Time: Mon, 24 Feb 2025 00:58:56 +0000
[Programming Help] - deleting tool drawing
View Count: 635
| [2021-02-25 20:46:17] |
| User30743 - Posts: 365 |
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I have been writing some utils functions one of them is to display text on the chart, the problem is the text is still there even though i hide or remove the study, and even though i reload the chart afterwards. I just need to completely close it and load it again. I found two studies in sierrachart.h that i used as reference void AddAndManageSingleTextDrawingForStudy and void AddAndManageSingleTextUserDrawnDrawingForStudy I basically copied and paste the code from the studies, did some changes into argument list and wrap it into a class.Here is my code class Display {
public: static void displayText(SCStudyInterfaceRef& sc, const SCString& textToDisplay, int horizontalPosition, int verticalPosition, SCString description = "") { int& r_DrawingTextLineNumber = *static_cast<int*>(sc.StorageBlock); // delete it when i remove if (sc.LastCallToFunction) { if (r_DrawingTextLineNumber != 0 && sc.UserDrawnChartDrawingExists(sc.ChartNumber, r_DrawingTextLineNumber) > 0) { sc.DeleteUserDrawnACSDrawing(sc.ChartNumber, r_DrawingTextLineNumber); } return; } //Reset the line number if the drawing no longer exists. if (r_DrawingTextLineNumber != 0 && sc.UserDrawnChartDrawingExists(sc.ChartNumber, r_DrawingTextLineNumber) == 0) { r_DrawingTextLineNumber = 0; } if (sc.HideStudy && r_DrawingTextLineNumber != 0) { sc.DeleteUserDrawnACSDrawing(sc.ChartNumber, r_DrawingTextLineNumber); r_DrawingTextLineNumber = 0; } if (sc.HideStudy) return; SCString text; text += description; text += " "; text += textToDisplay; s_UseTool t; t.ChartNumber = sc.ChartNumber; t.DrawingType = DRAWING_TEXT; t.FontBackColor = RGB(0, 0, 0); t.FontSize = 10; t.FontBold = false; t.AddMethod = UTAM_ADD_OR_ADJUST; t.UseRelativeVerticalValues = 1; t.Color = RGB(255, 255, 255); t.Region = 0; t.Text = text; t.BeginDateTime = horizontalPosition; t.BeginValue = verticalPosition; if (r_DrawingTextLineNumber != 0) t.LineNumber = r_DrawingTextLineNumber; if (sc.UseTool(t) > 0) r_DrawingTextLineNumber = t.LineNumber; } }; here is how i call it in the main study SCSFExport scsf_DrawTextToChart(SCStudyInterfaceRef sc) {
if (sc.SetDefaults) { sc.GraphRegion = 0; } util::Display::displayText(sc, "testing..", 5, 85); } it does the job BUT it stays on the chart forever. Why is that so? I am deleting in at the beginning no? Have been trying to figure out for last two hours but no success Date Time Of Last Edit: 2021-02-25 20:50:59
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| [2021-02-26 10:02:36] |
| User907968 - Posts: 833 |
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If you want to manage as user drawn drawing, then you need to set 'AddAsUserDrawnDrawing' in the s_UseTool struct - https://www.sierrachart.com/index.php?page=doc/ACSILDrawingTools.html#s_UseTool_AddAsUserDrawnDrawing.
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| [2021-02-26 10:25:48] |
| User30743 - Posts: 365 |
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genius
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