Code: Select all
#LTrim
#NoEnv
#SingleInstance Force
SetBatchLines, -1
CoordMode, Mouse
#Include C:\Portable\AutoHotkey\Lib\Gdip.ahk ;; https://autohotkey.com/boards/viewtopic.php?t=6517
if (!pToken := Gdip_Startup())
ExitApp
activation_key := "CapsLock"
zoom_step := 1.1
display_width := 300
display_height := 200
capture_width := display_width
capture_height := display_height
Hotkey, %activation_key%, zoom
OnExit, Exit
return
#if (GetKeyState(activation_key, "P"))
WheelUp::capture_width /= zoom_step, capture_height /= zoom_step
WheelDown::capture_width *= zoom_step, capture_height *= zoom_step
zoom:
Gui, -Caption +E0x00080020 +LastFound +AlwaysOnTop +ToolWindow +OwnDialogs
Gui, Show, NA
hwnd := WinExist()
hbm := CreateDIBSection(display_width, display_height)
hdc := CreateCompatibleDC()
obm := SelectObject(hdc, hbm)
G := Gdip_GraphicsFromHDC(hdc)
Gdip_SetInterpolationMode(G, 7)
pPen := Gdip_CreatePen(0xFF000000,1)
pBrush := Gdip_BrushCreateHatch(0xFFFFFFFF, 0xFF000000, 38) ;; HatchStyleDiagonalBrick
Loop
{
MouseGetPos, mX, mY, mWin
WinGetPos, X, Y, W, H, ahk_id %mWin%
pBitmap := Gdip_BitmapFromHwnd2(mWin, x1 := mX-X-capture_width/2, y1 := mY-Y-capture_height/2, capture_width, capture_height)
G2 := Gdip_GraphicsFromImage(pBitmap)
if (x1 < 0)
Gdip_FillRectangle(G2, pBrush, 0, 0, -x1, capture_height)
if (y1 < 0)
Gdip_FillRectangle(G2, pBrush, 0, 0, capture_width, -y1)
if (W < x1+capture_width)
Gdip_FillRectangle(G2, pBrush, -x1+W, 0, capture_width-x1+W, capture_height)
if (H < y1+capture_height)
Gdip_FillRectangle(G2, pBrush, 0, -y1+H, capture_width, capture_height-y1+H)
Gdip_DeleteGraphics(G2)
Gdip_DrawImage(G, pBitmap, 0, 0, display_width, display_height, 0, 0, capture_width, capture_height)
Gdip_DrawRectangle(G, pPen, 0, 0, display_width-1, display_height-1)
UpdateLayeredWindow(hwnd, hdc, mX-display_width/2, mY-display_height/2, display_width, display_height)
Gdip_DisposeImage(pBitmap)
}
Until (!GetKeyState(activation_key, "P"))
Gdip_DeleteBrush(pBrush)
Gdip_DeletePen(pPen)
SelectObject(hdc, obm)
DeleteObject(hbm)
DeleteDC(hdc)
Gdip_DeleteGraphics(G)
Gui, Destroy
return
Exit:
Gdip_Shutdown(pToken)
ExitApp
Return
Gdip_BitmapFromHwnd2(hWnd, x=0,y=0, w=0,h=0) {
if (!w || !h)
WinGetPos,,, w,h, ahk_id %hWnd%
hhdc := GetDCEx(hWnd, 3)
chdc := CreateCompatibleDC()
hbm := CreateDIBSection(w,h, chdc)
obm := SelectObject(chdc, hbm)
BitBlt(chdc, 0,0, w,h, hhdc, x,y)
ReleaseDC(hhdc)
pBitmap := Gdip_CreateBitmapFromHBITMAP(hbm)
SelectObject(chdc, obm)
DeleteObject(hbm)
DeleteDC(hhdc)
DeleteDC(chdc)
return pBitmap
}
)