Categorygithub.com/ghp3000/screenshot
modulepackage
0.0.0-20230616013409-47b0c5d3b9ac
Repository: https://github.com/ghp3000/screenshot.git
Documentation: pkg.go.dev

# README

screenshot

  • 使用go 语言在win上截屏,可自动选择gdi和dxgi模式,也可以手动选择
  • 可设置是否绘制鼠标指针
  • 支持多显示器
  • 使用SIMD做BGRA转RGBA,提升效率
  • 分辨率不变化的情况不释放内存,以优化gdi的截图时间
  • 这是为后面要实施的远程控制和投屏软件准备的基础库

example

  • sample program main.go

    package main
    
    import (
    "fmt"
    "image"
    "image/png"
    "os"
    "runtime"
    "screenshot"
    "strconv"
    "time"
    )
    
    // save *image.RGBA to filePath with PNG format.
    func save(img *image.RGBA, filePath string) {
        file, err := os.Create(filePath)
        if err != nil {
        panic(err)
        }
        defer file.Close()
        png.Encode(file, img)
    }
    func main() {
        runtime.LockOSThread()
        var err error
        shot := screenshot.NewScreenShot(1)
        if err != nil {
            fmt.Println(err)
        return
        }
    shot.DrawCursor(1)
    fmt.Println(shot.GetCaptureName())
    err = shot.Init(0)
    if err != nil {
        fmt.Println(err)
    return
    }
    defer shot.Release()
    start := time.Now()
    for i := 0; i < 10; i++ {
        start = time.Now()
        img, err := shot.Capture()
        //_, err := screenshot.Capture(0, 0, 1920, 1080)
        if err != nil {
            fmt.Println(err)
            //return
        } else {
        fmt.Println(time.Since(start))
        save(img, strconv.FormatInt(time.Now().UnixNano(), 10)+".png")
        }
        //time.Sleep(time.Millisecond * 30)
    }
        fmt.Println(time.Since(start))
    }
    

# Packages

No description provided by the author
No description provided by the author
Package swizzle provides functions for converting between RGBA pixel formats.

# Functions

Capture returns screen capture of specified desktop region.
CaptureDisplay captures whole region of displayIndex'th display.
CaptureRect captures specified region of desktop.
No description provided by the author
No description provided by the author
GetDisplayBounds returns the bounds of displayIndex'th display.
No description provided by the author
No description provided by the author
NumActiveDisplays returns the number of active displays.
No description provided by the author

# Constants

No description provided by the author
No description provided by the author
No description provided by the author

# Structs

https://msdn.microsoft.com/en-us/library/windows/desktop/ms648381(v=vs.85).aspx.
No description provided by the author
http://msdn.microsoft.com/en-us/library/windows/desktop/dd162805.aspx.

# Interfaces

No description provided by the author

# Type aliases

No description provided by the author
No description provided by the author
No description provided by the author