AutoHotkey Community

#WinActivateForce
Gui, +LastFound -Caption +Owner +AlwaysOnTop +E0x80000
; -0x20 -E0x80 +Disable
AddImage("test.png",WinExist(),W,H)
Gui, Show, w200 h200, Experiment

AddImage(sFile,hGui,ByRef Width="",ByRef Height="",pBits="")
{
DllCall("SetLastError", UInt, 0)
   If Not   DllCall("GetModuleHandle", "str", "gdiplus")
      DllCall("LoadLibrary"    , "str", "gdiplus")
 si := Chr(1)
   DllCall("gdiplus\GdiplusStartup", "UintP", pToken, "Uint", &si, "Uint", 0)
   VarSetCapacity(wFile, 1023)
   DllCall("kernel32\MultiByteToWideChar", "Uint", 0, "Uint", 0, "Uint", &sFile, "int", -1, "Uint", &wFile, "int", 512)
   DllCall("gdiplus\GdipLoadImageFromFile", "Uint", &wFile, "UintP", pImage)
   DllCall("gdiplus\GdipGetImageWidth", "Uint", pImage, "UintP", Width)
   DllCall("gdiplus\GdipGetImageHeight", "Uint", pImage, "UintP", Height)
   mDC := DllCall("gdi32\CreateCompatibleDC", "Uint", 0)
   NumPut(VarSetCapacity(bi, 40, 0), bi)
   NumPut(Width, bi, 4)
   NumPut(Height, bi, 8)
   NumPut(32, NumPut(1, bi, 12, "UShort"), 0, "Ushort")
   mBM := DllCall("gdi32\CreateDIBSection", "Uint", mDC, "Uint", &bi, "Uint", DIB_RGB_COLORS:=0, "UintP", pBits, "Uint", 0, "Uint", 0)
oBM := DllCall("gdi32\SelectObject", "Uint", mDC, "Uint", mBM)
    DllCall("gdiplus\GdipCreateFromHDC", "Uint", mDC, "UintP", pGraphics)
;DllCall("gdiplus\GdipDrawImageRectI", "Uint", pGraphics, "Uint", pImage, "int", 0, "int", 0, "int", Width, "int", Height)
VarSetCapacity(Rect, 16)
NumPut(0, Rect, 0, true)
NumPut(0, Rect, 4, true)
NumPut(200, Rect, 8, true)
NumPut(200, Rect, 12, true)
VarSetCapacity(Shape, 16)
NumPut(100, Shape, 0, true)
NumPut(0, Shape, 4, true)
NumPut(200, Shape, 8, true)
NumPut(200, Shape, 12, true)
COUNT:=1
msgbox % DllCall("gdiplus\GdipDrawImagePointsI", "Uint", pGraphics, UInt, pImage, UInt, &Rect, UInt, &Shape, UInt, COUNT)
DllCall("UpdateLayeredWindow", "Uint", hGui, "Uint", 0, "Uint", 0, "int64P", Width|Height<<32, "Uint", mDC, "int64P", 0, "Uint", 0, "intP",

0xFF<<16|1<<24, "Uint", 2)
DllCall("gdi32\SelectObject", "Uint", mDC, "Uint", oBM)
DllCall("gdi32\DeleteObject", "Uint", mBM)
DllCall("gdi32\DeleteDC", "Uint", hDC)
DllCall("gdiplus\GdipDeleteGraphics", "Uint", pGraphics)
DllCall("gdiplus\GdipDisposeImage", "Uint", pImage)
   DllCall("gdiplus\GdiplusShutdown", "Uint", pToken)
   If   hModule :=   DllCall("GetModuleHandle", "str", "gdiplus")
         DllCall("FreeLibrary"    , "Uint", hModule)
}