Модератор: Модераторы
unit UnixScaner;
{$mode objfpc}{$H+}
interface
{$IFDEF UNIX}
uses
ScanerTypes, graphics, x, xlib, glib, gdkpixbuf;{, LCLType, IntfGraphics,
gdk2, gtkdef, gdk2pixbuf, gtk2, glib2}
procedure FindAllPSTables(var WindowArray : TWindowArray; var Names : TArrayString);
procedure GetWindowScreenShot(Window : TMyWindow; var Bitmap : TMyBitmap);
{$ENDIF}
implementation
{$IFDEF UNIX}
function gdk_pixbuf_xlib_get_from_drawable(dest:PGdkPixbuf; src:TDrawable; cmap:TColormap; visual:PVisual; src_x:longint;
src_y:longint; dest_x:longint; dest_y:longint; width:longint; height:longint):PGdkPixbuf;cdecl; external 'libgdk_pixbuf_xlib' name 'gdk_pixbuf_xlib_get_from_drawable';
procedure gdk_pixbuf_xlib_init(display:PDisplay; screen_num:longint);cdecl; external 'libgdk_pixbuf_xlib' name 'gdk_pixbuf_xlib_init';
procedure FindXWindowsByMask(Display : PDisplay;
Root : TWindow; const Name : String; var WindowArray : TWindowArray; var Names : TArrayString);
const
StackDepth = 32;
type
TWinArray = array[0..0] of TWindow;
PWinArray = ^TWinArray;
StackElem = record
Children : PWinArray;
NChildren, Position : Integer;
end;
var
Stack : array[0..StackDepth-1] of StackElem;
StackPtr : Integer;
retName : PChar;
Wnd : TWindow;
begin
SetLength(Names, 0);
SetLength(WindowArray, 0);
XFetchName(Display, Root, @retName);
if Pos(Name, retName) > 0 then
begin
SetLength(Names, Length(Names) + 1);
Names[Length(Names) - 1] := retName;
SetLength(WindowArray, Length(WindowArray) + 1);
WindowArray[Length(WindowArray) - 1] := Root;
end;
StackPtr := 0;
Stack[StackPtr].Position := 0;
XQueryTree(Display, Root, @Wnd, @Wnd,
@(Stack[StackPtr].Children), @(Stack[StackPtr].NChildren));
while True do
if Stack[StackPtr].Position < Stack[StackPtr].NChildren then
begin
Wnd := Stack[StackPtr].Children^[Stack[StackPtr].Position];
XFetchName(Display, Wnd, @retName);
if Pos(Name, retName) > 0 then
begin
SetLength(Names, Length(Names) + 1);
Names[Length(Names) - 1] := retName;
SetLength(WindowArray, Length(WindowArray) + 1);
WindowArray[Length(WindowArray) - 1] := Wnd;
end;
begin
XFree(retName);
if StackPtr < StackDepth - 1 then
begin
Inc(StackPtr);
XQueryTree(Display, Wnd, @Wnd, @Wnd,
@(Stack[StackPtr].Children), @(Stack[StackPtr].NChildren));
Stack[StackPtr].Position := 0;
end else Inc(Stack[StackPtr].Position);
end;
end else
begin
XFree(Stack[StackPtr].Children);
Dec(StackPtr);
if StackPtr = -1 then Exit;
Inc(Stack[StackPtr].Position);
end;
end;
procedure FindAllPSTables(var WindowArray : TWindowArray; var Names : TArrayString);
var
Display: PDisplay;
Root : TWindow;
begin
Display := XOpenDisplay(nil);
Root := XDefaultRootWindow(Display);
FindXWindowsByMask(Display, Root, 'Table', WindowArray, Names);
end;
procedure PixBufToBitmap(var Image : PGdkPixbuf; var Bitmap : TBitmap);
var
width, height, rowstride, n_channels, i, j : Integer;
pixels, p : Pguchar;
begin
n_channels := gdk_pixbuf_get_n_channels(Image);
width := gdk_pixbuf_get_width(image);
height := gdk_pixbuf_get_height(image);
rowstride := gdk_pixbuf_get_rowstride(image);
pixels := gdk_pixbuf_get_pixels(Image);
Bitmap := TMyBitmap.Create;
Bitmap.Height := height;
Bitmap.Width := width;
Bitmap.PixelFormat := pf32bit;
for i := 0 to width do
for j := 0 to height do
begin
p := pixels + j * rowstride + i * n_channels;
Bitmap.Canvas.Pixels[i, j] := RGBToColor(Ord(p^),Ord((p+1)^),Ord((p+2)^));
end;
end;
procedure GetWindowScreenShot(Window : TMyWindow; var Bitmap : TMyBitmap);
var
Display: PDisplay;
Image : PGdkPixbuf;
wa : TXWindowAttributes;
begin
Display := XOpenDisplay(nil);
XGetWindowAttributes(Display, Window, @wa);
gdk_pixbuf_xlib_init(Display, 0);
image := gdk_pixbuf_xlib_get_from_drawable(nil, Window, 0, nil, 0, 0, 0, 0,
wa.width, wa.height);
PixBufToBitmap(Image, Bitmap);
//gdk_pixbuf_save(image, 'test.bmp', 'bmp', nil, [0]);
end;
{$ENDIF}
end.
procedure PixBufToBitmap(var Image : PGdkPixbuf; var Bitmap : TBitmap);
var
width, height, rowstride, n_channels, i, j : Integer;
pixels, p : Pguchar;
begin
n_channels := gdk_pixbuf_get_n_channels(Image);
width := gdk_pixbuf_get_width(image);
height := gdk_pixbuf_get_height(image);
rowstride := gdk_pixbuf_get_rowstride(image);
pixels := gdk_pixbuf_get_pixels(Image);
Bitmap := TMyBitmap.Create;
Bitmap.Height := height;
Bitmap.Width := width;
Bitmap.PixelFormat := pf32bit;
Bitmap.Canvas.Clear;
for i := 0 to Width-1 do
for J := 0 to Height-1 do
begin
p := pixels + j * rowstride + i * n_channels;
PByteArray(Bitmap.RawImage.Data)^[(((J*Width)+i)*4)] := Ord((p+2)^); // +2
PByteArray(Bitmap.RawImage.Data)^[(((J*Width)+i)*4)+1] := Ord((p+1)^);// +1
PByteArray(Bitmap.RawImage.Data)^[(((J*Width)+i)*4)+2] := Ord(p^);// +0
PByteArray(Bitmap.RawImage.Data)^[(((J*Width)+i)*4)+3] := 0;
end;
Bitmap.LoadFromRawImage(Bitmap.RawImage,true);
end;
procedure PixBufToBitmap(var Image : PGdkPixbuf; var Bitmap : TBitmap);
var
width, height, rowstride, n_channels, i, j : Integer;
pixels, p : Pguchar;
BmpData: TLazIntfImage;
begin
n_channels := gdk_pixbuf_get_n_channels(Image);
width := gdk_pixbuf_get_width(image);
height := gdk_pixbuf_get_height(image);
rowstride := gdk_pixbuf_get_rowstride(image);
pixels := gdk_pixbuf_get_pixels(Image);
Bitmap := TMyBitmap.Create;
Bitmap.Height := height;
Bitmap.Width := width;
Bitmap.PixelFormat := pf32bit;
BmpData := Bitmap.CreateIntfImage;
try
for i := 0 to Width-1 do
for J := 0 to Height-1 do
begin
p := pixels + j * rowstride + i * n_channels;
PByteArray(BmpData.PixelData)^[(((J*Width)+i)*4)] := Ord((p+2)^); // +2
PByteArray(BmpData.PixelData)^[(((J*Width)+i)*4)+1] := Ord((p+1)^);// +1
PByteArray(BmpData.PixelData)^[(((J*Width)+i)*4)+2] := Ord(p^);// +0
PByteArray(BmpData.PixelData)^[(((J*Width)+i)*4)+3] := 0;
end;
Bitmap.LoadFromIntfImage(BmpData);
finally
BmpData.Free;
end;
end;
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