/
screenshot.go
68 lines (51 loc) · 1.6 KB
/
screenshot.go
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package wingman
import (
ss "github.com/kbinani/screenshot"
"github.com/lxn/win"
"image"
"image/png"
"os"
)
/* Copyright © 2022 Brian C Sparks <briancsparks@gmail.com> -- MIT (see LICENSE file) */
// --------------------------------------------------------------------------------------------------------------------
func SaveDisplay(name string) error {
return SaveDisplayN(0, name)
}
// --------------------------------------------------------------------------------------------------------------------
func SaveDisplayN(n int, name string) error {
img, err := ss.CaptureDisplay(n)
if err != nil {
return err
}
return save(img, name)
}
// --------------------------------------------------------------------------------------------------------------------
func SaveWindow(hwnd win.HWND, name string) error {
img, err := CaptureWindow(hwnd)
if err != nil {
return err
}
return save(img, name)
}
// --------------------------------------------------------------------------------------------------------------------
func CaptureWindow(hwnd win.HWND) (*image.RGBA, error) {
rect, err := GetWindowRect(hwnd)
if err != nil {
return nil, err
}
img, err := ss.Capture(rect.Min.X, rect.Min.Y, rect.Max.X, rect.Max.Y)
if err != nil {
return nil, err
}
return img, nil
}
// --------------------------------------------------------------------------------------------------------------------
func save(img *image.RGBA, name string) error {
file, err := os.Create(name)
if err != nil {
return err
}
defer file.Close()
png.Encode(file, img)
return nil
}