Functions
void	gdImageCopy (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, int srcX, int srcY, int w, int h)
	Copy an area of an image to another image.

void	gdImageCopyMerge (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, int srcX, int srcY, int w, int h, int pct)
	Copy an area of an image to another image ignoring alpha.

void	gdImageCopyMergeGray (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, int srcX, int srcY, int w, int h, int pct)
	Copy an area of an image to another image ignoring alpha.

void	gdImageCopyResized (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, int srcX, int srcY, int dstW, int dstH, int srcW, int srcH)
	Copy a resized area from an image to another image.

void	gdImageCopyResampled (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, int srcX, int srcY, int dstW, int dstH, int srcW, int srcH)
	Copy a resampled area from an image to another image.

void	gdImageCopyRotated (gdImagePtr dst, gdImagePtr src, double dstX, double dstY, int srcX, int srcY, int srcWidth, int srcHeight, int angle)
	Copy a rotated area from an image to another image.

gdImagePtr	gdImageClone (gdImagePtr src)
	Clones an image.

void	gdImageInterlace (gdImagePtr im, int interlaceArg)
	Sets whether an image is interlaced.

Detailed Description

Function Documentation

◆ gdImageClone()

gdImagePtr gdImageClone ( gdImagePtr src )

Clones an image.

Creates an exact duplicate of the given image.

Parameters

src	The source image.

Returns: The cloned image on success, NULL on failure.

Group: Cloning and Copying

◆ gdImageCopy()

void gdImageCopy	(	gdImagePtr	dst,
		gdImagePtr	src,
		int	dstX,
		int	dstY,
		int	srcX,
		int	srcY,
		int	w,
		int	h
	)

Copy an area of an image to another image.

Parameters

dst	- The destination image.
src	- The source image.
dstX	- The x-coordinate of the upper left corner to copy to.
dstY	- The y-coordinate of the upper left corner to copy to.
srcX	- The x-coordinate of the upper left corner to copy from.
srcY	- The y-coordinate of the upper left corner to copy from.
w	- The width of the area to copy.
h	- The height of the area to copy.

See also: gdImageCopyMerge gdImageCopyMergeGray gdImageCopyResized gdImageCopyResampled gdImageCopyRotated gdImageScale gdImageScaleWithOptions

◆ gdImageCopyMerge()

void gdImageCopyMerge	(	gdImagePtr	dst,
		gdImagePtr	src,
		int	dstX,
		int	dstY,
		int	srcX,
		int	srcY,
		int	w,
		int	h,
		int	pct
	)

Copy an area of an image to another image ignoring alpha.

The source area will be copied to the destination are by merging the pixels.

Note: This function is a substitute for real alpha channel operations, so it doesn't pay attention to the alpha channel.

Parameters

dst	The destination image.
src	The source image.
dstX	The x-coordinate of the upper left corner to copy to.
dstY	The y-coordinate of the upper left corner to copy to.
srcX	The x-coordinate of the upper left corner to copy from.
srcY	The y-coordinate of the upper left corner to copy from.
w	The width of the area to copy.
h	The height of the area to copy.
pct	The percentage in range 0..100.

See also: gdImageCopy gdImageCopyMergeGray

◆ gdImageCopyMergeGray()

void gdImageCopyMergeGray	(	gdImagePtr	dst,
		gdImagePtr	src,
		int	dstX,
		int	dstY,
		int	srcX,
		int	srcY,
		int	w,
		int	h,
		int	pct
	)

Copy an area of an image to another image ignoring alpha.

The source area will be copied to the grayscaled destination area by merging the pixels.

Note: This function is a substitute for real alpha channel operations, so it doesn't pay attention to the alpha channel.

Parameters

dst	- The destination image.
src	- The source image.
dstX	- The x-coordinate of the upper left corner to copy to.
dstY	- The y-coordinate of the upper left corner to copy to.
srcX	- The x-coordinate of the upper left corner to copy from.
srcY	- The y-coordinate of the upper left corner to copy from.
w	- The width of the area to copy.
h	- The height of the area to copy.
pct	- The percentage of the source color intensity in range 0..100.

See also: gdImageCopy gdImageCopyMerge

◆ gdImageCopyResampled()

void gdImageCopyResampled	(	gdImagePtr	dst,
		gdImagePtr	src,
		int	dstX,
		int	dstY,
		int	srcX,
		int	srcY,
		int	dstW,
		int	dstH,
		int	srcW,
		int	srcH
	)

Copy a resampled area from an image to another image.

If the source and destination area differ in size, the area will be resized using bilinear interpolation for truecolor images, and nearest-neighbor interpolation for palette images.

Parameters

dst	The destination image.
src	The source image.
dstX	The x-coordinate of the upper left corner to copy to.
dstY	The y-coordinate of the upper left corner to copy to.
srcX	The x-coordinate of the upper left corner to copy from.
srcY	The y-coordinate of the upper left corner to copy from.
dstW	The width of the area to copy to.
dstH	The height of the area to copy to.
srcW	The width of the area to copy from.
srcH	The height of the area to copy from.

See also: gdImageCopyResized gdImageScale

◆ gdImageCopyResized()

void gdImageCopyResized	(	gdImagePtr	dst,
		gdImagePtr	src,
		int	dstX,
		int	dstY,
		int	srcX,
		int	srcY,
		int	dstW,
		int	dstH,
		int	srcW,
		int	srcH
	)

Copy a resized area from an image to another image.

If the source and destination area differ in size, the area will be resized using nearest-neighbor interpolation.

Parameters

dst	The destination image.
src	The source image.
dstX	The x-coordinate of the upper left corner to copy to.
dstY	The y-coordinate of the upper left corner to copy to.
srcX	The x-coordinate of the upper left corner to copy from.
srcY	The y-coordinate of the upper left corner to copy from.
dstW	The width of the area to copy to.
dstH	The height of the area to copy to.
srcW	The width of the area to copy from.
srcH	The height of the area to copy from.

See also: gdImageCopyResampled gdImageScale

◆ gdImageCopyRotated()

void gdImageCopyRotated	(	gdImagePtr	dst,
		gdImagePtr	src,
		double	dstX,
		double	dstY,
		int	srcX,
		int	srcY,
		int	srcWidth,
		int	srcHeight,
		int	angle
	)

Copy a rotated area from an image to another image.

The area is counter-clockwise rotated using nearest-neighbor interpolation.

Parameters

dst	The destination image.
src	The source image.
dstX	The x-coordinate of the center of the area to copy to.
dstY	The y-coordinate of the center of the area to copy to.
srcX	The x-coordinate of the upper left corner to copy from.
srcY	The y-coordinate of the upper left corner to copy from.
srcW	The width of the area to copy from.
srcH	The height of the area to copy from.
angle	The angle in degrees.

See also: gdImageRotateInterpolated

◆ gdImageInterlace()

void gdImageInterlace	(	gdImagePtr	im,
		int	interlaceArg
	)

Sets whether an image is interlaced.

This is relevant only when saving the image in a format that supports interlacing.

Parameters

im	The image.
interlaceArg	Whether the image is interlaced.

See also: gdImageGetInterlaced

Functions

Detailed Description

Function Documentation

◆ gdImageClone()

◆ gdImageCopy()

◆ gdImageCopyMerge()

◆ gdImageCopyMergeGray()

◆ gdImageCopyResampled()

◆ gdImageCopyResized()

◆ gdImageCopyRotated()

◆ gdImageInterlace()