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sc.ahk
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/*
CaptureScreen(aRect, bCursor, sFileTo, nQuality)
1) If the optional parameter bCursor is True, captures the cursor too.
2) If the optional parameter sFileTo is 0, set the image to Clipboard.
If it is omitted or "", saves to screen.bmp in the script folder,
otherwise to sFileTo which can be BMP/JPG/PNG/GIF/TIF.
3) The optional parameter nQuality is applicable only when sFileTo is JPG. Set it to the desired quality level of the resulting JPG, an integer between 0 - 100.
4) If aRect is 0/1/2/3, captures the entire desktop/active window/active client area/active monitor.
5) aRect can be comma delimited sequence of coordinates, e.g., "Left, Top, Right, Bottom" or "Left, Top, Right, Bottom, Width_Zoomed, Height_Zoomed".
In this case, only that portion of the rectangle will be captured. Additionally, in the latter case, zoomed to the new width/height, Width_Zoomed/Height_Zoomed.
Example:
CaptureScreen(0)
CaptureScreen(1)
CaptureScreen(2)
CaptureScreen(3)
CaptureScreen("100, 100, 200, 200")
CaptureScreen("100, 100, 200, 200, 400, 400") ; Zoomed
*/
/*
Convert(sFileFr, sFileTo, nQuality)
Convert("C:\image.bmp", "C:\image.jpg")
Convert("C:\image.bmp", "C:\image.jpg", 95)
Convert(0, "C:\clip.png") ; Save the bitmap in the clipboard to sFileTo if sFileFr is "" or 0.
*/
CaptureScreen(aRect = 0, bCursor = False, sFile = "", nQuality = "")
{
If !aRect
{
SysGet, nL, 76
SysGet, nT, 77
SysGet, nW, 78
SysGet, nH, 79
}
Else If aRect = 1
WinGetPos, nL, nT, nW, nH, A
Else If aRect = 2
{
WinGet, hWnd, ID, A
VarSetCapacity(rt, 16, 0)
DllCall("GetClientRect" , "Uint", hWnd, "Uint", &rt)
DllCall("ClientToScreen", "Uint", hWnd, "Uint", &rt)
nL := NumGet(rt, 0, "int")
nT := NumGet(rt, 4, "int")
nW := NumGet(rt, 8)
nH := NumGet(rt,12)
}
Else If aRect = 3
{
VarSetCapacity(mi, 40, 0)
DllCall("GetCursorPos", "int64P", pt)
DllCall("GetMonitorInfo", "Uint", DllCall("MonitorFromPoint", "int64", pt, "Uint", 2), "Uint", NumPut(40,mi)-4)
nL := NumGet(mi, 4, "int")
nT := NumGet(mi, 8, "int")
nW := NumGet(mi,12, "int") - nL
nH := NumGet(mi,16, "int") - nT
}
Else
{
StringSplit, rt, aRect, `,, %A_Space%%A_Tab%
nL := rt1
nT := rt2
nW := rt3 - rt1
nH := rt4 - rt2
znW := rt5
znH := rt6
}
mDC := DllCall("CreateCompatibleDC", "Uint", 0)
hBM := CreateDIBSection(mDC, nW, nH)
oBM := DllCall("SelectObject", "Uint", mDC, "Uint", hBM)
hDC := DllCall("GetDC", "Uint", 0)
DllCall("BitBlt", "Uint", mDC, "int", 0, "int", 0, "int", nW, "int", nH, "Uint", hDC, "int", nL, "int", nT, "Uint", 0x40000000 | 0x00CC0020)
DllCall("ReleaseDC", "Uint", 0, "Uint", hDC)
If bCursor
CaptureCursor(mDC, nL, nT)
DllCall("SelectObject", "Uint", mDC, "Uint", oBM)
DllCall("DeleteDC", "Uint", mDC)
If znW && znH
hBM := Zoomer(hBM, nW, nH, znW, znH)
If sFile = 0
SetClipboardData(hBM)
Else Convert(hBM, sFile, nQuality), DllCall("DeleteObject", "Uint", hBM)
}
CaptureCursor(hDC, nL, nT)
{
VarSetCapacity(mi, 20, 0)
mi := Chr(20)
DllCall("GetCursorInfo", "Uint", &mi)
bShow := NumGet(mi, 4)
hCursor := NumGet(mi, 8)
xCursor := NumGet(mi,12)
yCursor := NumGet(mi,16)
VarSetCapacity(ni, 20, 0)
DllCall("GetIconInfo", "Uint", hCursor, "Uint", &ni)
xHotspot := NumGet(ni, 4)
yHotspot := NumGet(ni, 8)
hBMMask := NumGet(ni,12)
hBMColor := NumGet(ni,16)
If bShow
DllCall("DrawIcon", "Uint", hDC, "int", xCursor - xHotspot - nL, "int", yCursor - yHotspot - nT, "Uint", hCursor)
If hBMMask
DllCall("DeleteObject", "Uint", hBMMask)
If hBMColor
DllCall("DeleteObject", "Uint", hBMColor)
}
Zoomer(hBM, nW, nH, znW, znH)
{
mDC1 := DllCall("CreateCompatibleDC", "Uint", 0)
mDC2 := DllCall("CreateCompatibleDC", "Uint", 0)
zhBM := CreateDIBSection(mDC2, znW, znH)
oBM1 := DllCall("SelectObject", "Uint", mDC1, "Uint", hBM)
oBM2 := DllCall("SelectObject", "Uint", mDC2, "Uint", zhBM)
DllCall("SetStretchBltMode", "Uint", mDC2, "int", 4)
DllCall("StretchBlt", "Uint", mDC2, "int", 0, "int", 0, "int", znW, "int", znH, "Uint", mDC1, "int", 0, "int", 0, "int", nW, "int", nH, "Uint", 0x00CC0020)
DllCall("SelectObject", "Uint", mDC1, "Uint", oBM1)
DllCall("SelectObject", "Uint", mDC2, "Uint", oBM2)
DllCall("DeleteDC", "Uint", mDC1)
DllCall("DeleteDC", "Uint", mDC2)
DllCall("DeleteObject", "Uint", hBM)
Return zhBM
}
Convert(sFileFr = "", sFileTo = "", nQuality = "")
{
If sFileTo =
sFileTo := A_ScriptDir . "\screen.bmp"
SplitPath, sFileTo, , sDirTo, sExtTo, sNameTo
If Not hGdiPlus := DllCall("LoadLibrary", "str", "gdiplus.dll")
Return sFileFr+0 ? SaveHBITMAPToFile(sFileFr, sDirTo . "\" . sNameTo . ".bmp") : ""
VarSetCapacity(si, 16, 0), si := Chr(1)
DllCall("gdiplus\GdiplusStartup", "UintP", pToken, "Uint", &si, "Uint", 0)
If !sFileFr
{
DllCall("OpenClipboard", "Uint", 0)
If DllCall("IsClipboardFormatAvailable", "Uint", 2) && (hBM:=DllCall("GetClipboardData", "Uint", 2))
DllCall("gdiplus\GdipCreateBitmapFromHBITMAP", "Uint", hBM, "Uint", 0, "UintP", pImage)
DllCall("CloseClipboard")
}
Else If sFileFr Is Integer
DllCall("gdiplus\GdipCreateBitmapFromHBITMAP", "Uint", sFileFr, "Uint", 0, "UintP", pImage)
Else DllCall("gdiplus\GdipLoadImageFromFile", a_isunicode ? "Str" : "Uint", a_isunicode ? sFileFr : Unicode4Ansi(wFileFr,sFileFr), "UintP", pImage)
DllCall("gdiplus\GdipGetImageEncodersSize", "UintP", nCount, "UintP", nSize)
VarSetCapacity(ci,nSize,0)
DllCall("gdiplus\GdipGetImageEncoders", "Uint", nCount, "Uint", nSize, "Uint", &ci)
Loop, % nCount
If InStr(a_isunicode ? StrGet(NumGet(ci,76*(A_Index-1)+44), "UTF-16") : Ansi4Unicode(NumGet(ci,76*(A_Index-1)+44)), "." . sExtTo)
{
pCodec := &ci+76*(A_Index-1)
Break
}
If InStr(".JPG.JPEG.JPE.JFIF", "." . sExtTo) && nQuality<>"" && pImage && pCodec
{
DllCall("gdiplus\GdipGetEncoderParameterListSize", "Uint", pImage, "Uint", pCodec, "UintP", nSize)
VarSetCapacity(pi,nSize,0)
DllCall("gdiplus\GdipGetEncoderParameterList", "Uint", pImage, "Uint", pCodec, "Uint", nSize, "Uint", &pi)
Loop, % NumGet(pi)
If NumGet(pi,28*(A_Index-1)+20)=1 && NumGet(pi,28*(A_Index-1)+24)=6
{
pParam := &pi+28*(A_Index-1)
NumPut(nQuality,NumGet(NumPut(4,NumPut(1,pParam+0)+20)))
Break
}
}
If pImage
pCodec ? DllCall("gdiplus\GdipSaveImageToFile", "Uint", pImage, a_isunicode ? "Str" : "Uint", a_isunicode ? sFileTo : Unicode4Ansi(wFileTo,sFileTo), "Uint", pCodec, "Uint", pParam) : DllCall("gdiplus\GdipCreateHBITMAPFromBitmap", "Uint", pImage, "UintP", hBitmap, "Uint", 0) . SetClipboardData(hBitmap), DllCall("gdiplus\GdipDisposeImage", "Uint", pImage)
DllCall("gdiplus\GdiplusShutdown" , "Uint", pToken)
DllCall("FreeLibrary", "Uint", hGdiPlus)
}
CreateDIBSection(hDC, nW, nH, bpp = 32, ByRef pBits = "")
{
NumPut(VarSetCapacity(bi, 40, 0), bi)
NumPut(nW, bi, 4)
NumPut(nH, bi, 8)
NumPut(bpp, NumPut(1, bi, 12, "UShort"), 0, "Ushort")
NumPut(0, bi,16)
Return DllCall("gdi32\CreateDIBSection", "Uint", hDC, "Uint", &bi, "Uint", 0, "UintP", pBits, "Uint", 0, "Uint", 0)
}
SaveHBITMAPToFile(hBitmap, sFile)
{
DllCall("GetObject", "Uint", hBitmap, "int", VarSetCapacity(oi,84,0), "Uint", &oi)
hFile:= DllCall("CreateFile", "Uint", &sFile, "Uint", 0x40000000, "Uint", 0, "Uint", 0, "Uint", 2, "Uint", 0, "Uint", 0)
DllCall("WriteFile", "Uint", hFile, "int64P", 0x4D42|14+40+NumGet(oi,44)<<16, "Uint", 6, "UintP", 0, "Uint", 0)
DllCall("WriteFile", "Uint", hFile, "int64P", 54<<32, "Uint", 8, "UintP", 0, "Uint", 0)
DllCall("WriteFile", "Uint", hFile, "Uint", &oi+24, "Uint", 40, "UintP", 0, "Uint", 0)
DllCall("WriteFile", "Uint", hFile, "Uint", NumGet(oi,20), "Uint", NumGet(oi,44), "UintP", 0, "Uint", 0)
DllCall("CloseHandle", "Uint", hFile)
}
SetClipboardData(hBitmap)
{
DllCall("GetObject", "Uint", hBitmap, "int", VarSetCapacity(oi,84,0), "Uint", &oi)
hDIB := DllCall("GlobalAlloc", "Uint", 2, "Uint", 40+NumGet(oi,44))
pDIB := DllCall("GlobalLock", "Uint", hDIB)
DllCall("RtlMoveMemory", "Uint", pDIB, "Uint", &oi+24, "Uint", 40)
DllCall("RtlMoveMemory", "Uint", pDIB+40, "Uint", NumGet(oi,20), "Uint", NumGet(oi,44))
DllCall("GlobalUnlock", "Uint", hDIB)
DllCall("DeleteObject", "Uint", hBitmap)
DllCall("OpenClipboard", "Uint", 0)
DllCall("EmptyClipboard")
DllCall("SetClipboardData", "Uint", 8, "Uint", hDIB)
DllCall("CloseClipboard")
}
Unicode4Ansi(ByRef wString, sString)
{
nSize := DllCall("MultiByteToWideChar", "Uint", 0, "Uint", 0, "Uint", &sString, "int", -1, "Uint", 0, "int", 0)
VarSetCapacity(wString, nSize * 2)
DllCall("MultiByteToWideChar", "Uint", 0, "Uint", 0, "Uint", &sString, "int", -1, "Uint", &wString, "int", nSize)
Return &wString
}
Ansi4Unicode(pString)
{
nSize := DllCall("WideCharToMultiByte", "Uint", 0, "Uint", 0, "Uint", pString, "int", -1, "Uint", 0, "int", 0, "Uint", 0, "Uint", 0)
VarSetCapacity(sString, nSize)
DllCall("WideCharToMultiByte", "Uint", 0, "Uint", 0, "Uint", pString, "int", -1, "str", sString, "int", nSize, "Uint", 0, "Uint", 0)
Return sString
}