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  • End of drawing
  • Pattern and PHP
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
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WINDEV Mobile
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Stored procedures
Performs a rotation:
  • of an Image control,
  • in an Image variable.
    PHP This type of variable is not available.
Example
// Rotate the IMG_Image1 control by 45 degrees
Result1 is boolean
Result1 = dRotation(IMG_Image1, 45)
IF Result1 = False THEN Error("The operation failed")
Syntax

Performing a simple rotation Hide the details

<Result> = dRotation(<Image> , <Rotation angle> [, <Options>])
<Result>: Boolean
  • True if the rotation was performed,
  • False otherwise.
<Image>: Control name, Image variable or picLayer variable
Image to use. This image can correspond to:
  • the name of an Image control.
  • on behalf of an Variable of type Image.
    PHP This type of variable is not available.
The rotation is performed in relation to the center of the image. The image is directly modified.
<Rotation angle>: Real
Rotation angle (in degrees).
  • If the angle is positive, the image rotates clockwise.
  • If the angle is negative, the image rotates anticlockwise.
<Options>: Integer constant
Versions 17 and later
Reports and QueriesWindowsUser code (UMC) Rotation options:
drAdaptThe image is flipped and enlarged. Then, its size is reduced to correspond to the initial image size.
drDefaultEnlarge the image (if necessary) so that it corresponds to the dimensions of rotated image.
Constant used by default for Image or picLayer variables.
drNoEnlargingThe image is turned but it is not enlarged: the image may be truncated.
Constant used by default for the Image controls.

JavaPHP This parameter is not available.
New in version 17
Reports and QueriesWindowsUser code (UMC) Rotation options:
drAdaptThe image is flipped and enlarged. Then, its size is reduced to correspond to the initial image size.
drDefaultEnlarge the image (if necessary) so that it corresponds to the dimensions of rotated image.
Constant used by default for Image or picLayer variables.
drNoEnlargingThe image is turned but it is not enlarged: the image may be truncated.
Constant used by default for the Image controls.

JavaPHP This parameter is not available.
Reports and QueriesWindowsUser code (UMC) Rotation options:
drAdaptThe image is flipped and enlarged. Then, its size is reduced to correspond to the initial image size.
drDefaultEnlarge the image (if necessary) so that it corresponds to the dimensions of rotated image.
Constant used by default for Image or picLayer variables.
drNoEnlargingThe image is turned but it is not enlarged: the image may be truncated.
Constant used by default for the Image controls.

JavaPHP This parameter is not available.
Reports and QueriesWindowsJavaUser code (UMC)

Performing a rotation while modifying the rotation center Hide the details

<Result> = dRotation(<Image control> , <Rotation angle> , <X of rotation center> , <Y of rotation center> [, <Options>])
<Result>: Boolean
  • True if the rotation was performed,
  • False otherwise.
<Image control>: Control name
Name of Image control to use. The rotation is performed in relation to the center of the Image control. The image found in the Image control is modified.
<Rotation angle>: Real
Rotation angle (in degrees).
<X of rotation center>: Integer
X coordinate (in pixels) of the new rotation center.
<Y of rotation center>: Integer
Y coordinate (in pixels) of the new rotation center.
<Options>: Integer constant
Rotation options:
drDefaultEnlarge the image (if necessary) so that it corresponds to the dimensions of rotated image.
Constant used by default for Image or picLayer variables.
drNoEnlargingThe image is flipped but not enlarged
Constant used by default for the Image controls.

Versions 18 and later
Java This parameter is not available.
New in version 18
Java This parameter is not available.
Java This parameter is not available.
Remarks

End of drawing

The transformation of the image will not be displayed if dEndDrawing and dRotation are called in the same process.
PHP

Pattern and 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.
Related Examples:
Image rotation Unit examples (WINDEV): Image rotation
[ + ] Image rotation from any point that will be used as rotation center.
Component: wd260pnt.dll
See also
Minimum version required
  • Version 9
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