- End of drawing
- Drawing in PHP
- Drawing in Browser code
In french: dRedimensionne
// Zoom on the IMG_Image1 control: the size of the image displayed in the control is doubled
Result1 is boolean
Result1 = dResize(IMG_Image1, IMG_Image1.Width * 2, IMG_Image1.Height * 2)
IF Result1 = False THEN Error("The operation failed")
<Result> = dResize(<Image> , <New width> , <New height> [, <Option>])
- True if resized successfully,
- False otherwise.
<Image>: Control name, Image variable or picLayer variable
Image to use. The image can correspond to:
- the name of an Image control.
- the name of a variable of type Image.
This type of variable is not available.
- the name of a variable of type picLayer.
<New width>: Integer
New image width expressed in pixels.
<New height>: Integer
New height of the image expressed in pixels.
<Option>: Optional Integer constant
End of drawing
are called in the same process, the image changes will not be displayed.
Drawing in PHP
In PHP, the drawing functions are based on the graphic library GD. This library is commonly used by the PHP hosting companies and therefore it is always enabled. The version of the GD library must be version 2.0.28 (or later). This library can be downloaded from the PHP site.
To enable (if necessary) this library locally, the following elements are required:
- PHP installed.
- the PHP.INI file found in the Windows directory must contain the following line: "extension=php_gd2.dll" (instead of ";extension=php_gd2.dll").
- the php_gd2.dll file must exist in the directory of PHP extensions. This directory is defined in the PHP.INI file by the "extension_dir" variable.
Drawing in Browser code
Some drawing functions are available in Browser code. The drawing functions in Browser code are based on the HTML 5 standard. More specifically, these functions are based on the "canvas" tag of HTML 5.
The drawing features in browser code are available for the recent browsers only (supporting the HTML 5 standard). To find out whether the drawing features are proposed by your browser, use DrawingAvailable
Caution: To use the drawing functions with Internet Explorer 9, the project must include the reference to the DTD file. To do so, the HTML mode must be "HTML 4.01 Transitional + DTD". This option is available in the "Advanced" tab of the project description window.
Reminder: To open the project description window, go to the "Project" tab, "Project" group and click "Description".
Special case: Drawing in the browser of an Android phone: The browser drawing functions are only available starting with version 3 of Android.
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