Image type conversion, scaling, modification in Powerbuilder
more information:pbni-rs
- Build
cargo build --release
# Copy \target\i686-pc-windows-msvc\release\pbimage.dll file to the pb project directory
BMP,JPEG,GIF,PNG,ICO,TIFF,WEBP
- File
nrs_tp_image nimage
nimage = create nrs_tp_image
if nimage.open("pic.jpg") then
//Convert jpg images to png format,save to file;
nimage.save("pic.png")
end if
- Blob
blob bimg
nrs_tp_image nimage
nimage = create nrs_tp_image
if nimage.open("pic.jpg") then
//Convert jpg images to png format,data to blob;
bimg = nimage.as_bytes(enum.IMAGEFORMAT_PNG))
end if
- Thumbnail
nrs_tp_image nimage
nimage = create nrs_tp_image
if nimage.open("pic.jpg") then
//Generate 200 * 200 thumbnail and convert to png
nimage.thumbnail(200,200).save("pic.png")
end if
- Resize
nrs_tp_image nimage
nimage = create nrs_tp_image
if nimage.open("pic.jpg") then
//Resize to 200 * 200 with FILTERTYPE_NEAREST and convert to png
nimage.resize(200,200,enum.FILTERTYPE_NEAREST).save("pic.png")
end if
Function Name | Description |
---|---|
public function ulong height() | height |
public function ulong width() | width |
public function nrs_tp_image grayscale() | grayscale |
public subroutine invert() | invert |
public function nrs_tp_image blur(readonly real sigma) | blur |
public function nrs_tp_image unsharpen(readonly real sigma,readonly long threshold) | unsharpen |
public function nrs_tp_image adjust_contrast(readonly real c) | adjust_contrast |
public function nrs_tp_image brighten(readonly long v) | brighten |
public function nrs_tp_image huerotate(readonly long v) | huerotate |
public function nrs_tp_image flipv() | flipv |
public function nrs_tp_image fliph() | fliph |
public function nrs_tp_image rotate90() | rotate90 |
public function nrs_tp_image rotate180() | rotate180 |
public function nrs_tp_image rotate270() | rotate270 |
nrs_tp_image nimage
nimage = create nrs_tp_image
if nimage.open("pic.jpg") then
//Chaining Style
nimage.thumbnail(200,200).grayscale().blur(2.0).flipv().save("pic.png")
end if
public function nrs_tp_image resize(readonly ulong nwidth,readonly ulong nheight,readonly uint filtertype)
public function nrs_tp_image resize_exact(readonly ulong nwidth,readonly ulong nheight,readonly uint filtertype)
public function nrs_tp_image resize_to_fill(readonly ulong nwidth,readonly ulong nheight,readonly uint filtertype)
public function nrs_tp_image thumbnail(readonly ulong nwidth,readonly ulong nheight)
public function nrs_tp_image thumbnail_exact(readonly ulong nwidth,readonly ulong nheight)
public function uint color()