Functions for GD.

Set alpha blending in GD

Draw an arc.

Crop a GD image.

Draw an ellipse.

Free/Relase memory for a GD structure.

Return a color index.

Get a pixel from image.

Return width and height of image.

Draw a line.

Merge a GD image.

Create a new image with GD.

Draw a polygon.

Print a text in the image.

Resize a GD image.

Resize a GD image.

Rotate a GD image.

Save Alpha in GD

Set a pixel from image.

Write a GD image to a file or send it to the client.