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2011.02.10 17:59
Libraries

cIntBMP - a library for creation of BMP images - library for MetaTrader 5

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\MQL5\Include\
cintbmp.mqh (39.29 KB)view
\MQL5\Experts\
ebmp.mq5 (48.02 KB)view

This class is designed for creation of bmp images.

Examples:

An example of DrawTriangle() method of cIntBMP class

An example of DrawTriangle() method

An example of DrawRectangle() method of cIntBMP class

An example of DrawRectangle() method

An example of DrawCircle() method of cIntBMP class

An example of DrawCircle() method

An example of Fill() method of cIntBMP class

An example of Fill() method

Usage:

The cIntBMP.mqh file should be located in MQL5/Include folder. The demo of cIntBMP class usage is located in the eBMP.mq5 file. Copy this file to the MQL5/Experts folder, open it in MetaEditor, compile and attach to the chart.

Using cIntBMP class:

1. Include file with class:

#include <cIntBMP.mqh>

2. Delcare the cIntBMP class variable, for example "bmp":

cIntBMP bmp;

3. Set image size and background color (using Create(...) method, see below).

4. Draw on the image.

5. Save (using the Save(...) method).

6. Show (using the Show(...) method);

When finished:

1. Delete graphic object (using the Hide(...) method).

2. Delete the file (using the Delete(...) method).

Class Methods:

  • Create(int aSizeX, int aSizeY, int aBGColor) - Sets image size and background color.
    aSizeX - width (in pixels);
    aSizeY - height (in pixels);
    aBGColor - background color;
  • SetDrawWidth(int aWidth) - Sets pen width.
    aWidth - pen width.
  • DrawDot(int aX, int aY, int aColor) - Draws a dot.
    aX - X coordinate;
    aY - Y cooordinate;
    aColor - color;
  • DrawLine(int aX1,int aY1, int aX2, int aY2, int aColor) - Draws a line.
    aX1, aY1 - starting coordinates;
    aX2, aY2 - ending coordinates;
    aColor - color;
  • DrawRectangle(int aX1, int aY1, int aX2, int aY2, int aColor, bool aSolid=false) - Draws a rectangle.
    aX1, aY1 - coordinates of the upper left corner;
    aX2, aY2 - coordinates of the lower right corner;
    aColor - color;
    aSolid - true - filled.
  • DrawTriangle(int aX1, int aY1, int aX2, int aY2, int aX3, int aY3, int aColor, bool aSolid=false) - Draws a triangle.
    aX1, aY1, aX2, aY2, aX3, aY3 - edge coordinates;
    aColor - color;
    aSolid - true - filled.
  • DrawCircle(int aX, int aY, int aRadius1, int aRadius2, int aColor, double aRatio=1.0, double aAngleFrom=0.0, double aAngleTo, bool aSolid=false) - Draws a circle.
    aX - X coordinate;
    aY - Y coordinate;
    aRadius1 - radius of the 1st circle;
    aRadius2 - radius of the 2nd circle;
    aColor - color;
    aRatio - ratio (ratio=1, circle, overwise ellipse).
    aAngleFrom - starting angle;
    aAngleTo - ending angle. if aAngleFrom=aAngleTo, it will draw a circle;
    aSolid - true - filled circle/ellipse.
  • Fill(int aX, int aY, int aColor) - Fills the area.
    aX, aY - coordinates of the fill area;
    aColor - fill color.
  • TypeText(int aX, int aY, int aColor) - Prints text on the image.
    aX, aY - coordinates of the left upper corner of the text;
    aColor - text color.
  • Save(string aFileName, bool aToImages=true) - saves the created image to file.
    aFileName - File name (it isn't necessary to specify the extension) ;
    aToImages - file will be saved to the MQL5\Images\ folder, overwise it will be saved to the MQL5\Files\ folder.
  • Show(int aX, int aY, string aBMPFileName, string aObjectName) - Shows the image on the chart.
    aX, aY - coodinates;
    aBMPFileName - file name of the image;
    aObjectName - graphic object of OBJ_BITMAP_LABEL type.
  • Hide(string aObjectName) - Deletes graphic object with the specified name.
    aObjectName - name of the object to delete.
  • Delete(string aFileName, bool aFromImages=true) - Deletes a file.
    aFileName - Name of the bmp file to delete (without path, it isn't necessary to specify the extension);
    aFromImages - if true, the file will be deleted from MQL5\Images\ folder, overwise it will be deleted from MQL5\Files\ folder.

Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/251

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