FileGetSize, size, 1.jpg
file := FileOpen("1.jpg","r")
readbytes := file.RawRead(buff, size)
file.close()

file2 := FileOpen("2.jpg","w")
writebytes := file2.RawWrite(&buff, readbytes)
file2.close()
Return

/*
FileGetSize, vSize, D:\PSTools\图标\11原图.png
FileRead, vData, *c D:\PSTools\图标\11原图.png

pToken := Gdip_StartUp()  ; GDI库加载

MsgBox % hBitmap := GDIPlus_hBitmapFromBuffer(vData, vSize)

Gui, Add, Picture, vPic, % "HBITMAP:*" hBitmap
Gui, Show, w1000 h700, AHK窗口显示
Return

GDIPlus_hBitmapFromBuffer(ByRef Buffer, nSize) {  ; by SKAN
  hData := DllCall("GlobalAlloc", "Uint", 2, "Uint", nSize)
  pData := DllCall("GlobalLock", "Uint", hData)
  DllCall("RtlMoveMemory", "Uint", pData, "Uint", &Buffer, "Uint", nSize)
  DllCall("GlobalUnlock", "Uint", hData)
  DllCall("ole32\CreateStreamOnHGlobal", "Uint", hData, "int", True, "UIntP", pStream)
  DllCall("gdiplus\GdipCreateBitmapFromStream",  "Uint", pStream, "UIntP", pBitmap)
  DllCall("gdiplus\GdipCreateHBITMAPFromBitmap", "Uint", pBitmap, "UIntP", hBitmap, "Uint", DllCall("ntdll\RtlUlongByteSwap", "Uint", DllCall("GetSysColor", "int", 15 ) <<8 ) | 0xFF000000)
  DllCall("gdiplus\GdipDisposeImage", "Uint", pBitmap)
  DllCall(NumGet( NumGet(1*pStream)+8 ), "Uint", pStream)  ; IStream::Release
  Return hBitmap
}
*/

 

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