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https://github.com/moparisthebest/Simba
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c59ea10a2c
git-svn-id: http://www.villavu.com/repositories/merlijn/mufasa@127 3f818213-9676-44b0-a9b4-5e4c4e03d09d
622 lines
17 KiB
ObjectPascal
622 lines
17 KiB
ObjectPascal
{
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This file is part of the Mufasa Macro Library (MML)
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Copyright (c) 2009 by Raymond van Venetië and Merlijn Wajer
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MML is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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MML is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with MML. If not, see <http://www.gnu.org/licenses/>.
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See the file COPYING, included in this distribution,
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for details about the copyright.
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Window class for the Mufasa Macro Library
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}
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unit Window;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, mufasatypes,
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{$IFDEF MSWINDOWS}
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windows, // For windows API
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{$ENDIF}
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graphics,
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LCLType,
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LCLIntf // for ReleaseDC and such
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{$IFDEF LINUX}, xlib, x, xutil, ctypes{$ENDIF};
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type
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{ TMWindow }
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TMWindow = class(TObject)
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function GetColor(x,y : integer) : TColor;
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function ReturnData(xs, ys, width, height: Integer): TRetData;
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procedure FreeReturnData;
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procedure GetDimensions(var W, H: Integer);
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function CopyClientToBitmap(xs, ys, xe, ye: integer): TBitmap;
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procedure ActivateClient;
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{$IFDEF LINUX}
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function SetTarget(XWindow: x.TWindow): integer; overload;
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{$ENDIF}
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{$IFDEF MSWINDOWS}
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function UpdateDrawBitmap:boolean;
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{$ENDIF}
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function SetTarget(Window: THandle; NewType: TTargetWindowMode): integer; overload;
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function SetTarget(ArrPtr: PRGB32; Size: TPoint): integer; overload;
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procedure SetWindow(Window: TMWindow);
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procedure SetDesktop;
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{
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Freeze Client Feature.
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This will force the MWindow unit to Store the current Client's
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data in whatever internal structure it will use, and returndata /
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copyclienttobitmap will not renew this data until Unfreeze() is
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called.
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}
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function Freeze: boolean;
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function Unfreeze: boolean;
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constructor Create;
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destructor Destroy; override;
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private
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FreezeState: Boolean;
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FrozenData : PRGB32;
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FrozenSize : TPoint;
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public
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// Target Window Mode.
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TargetMode: TTargetWindowMode;
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{$IFDEF MSWINDOWS}
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//Target handle; HWND
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TargetHandle : Hwnd;
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DrawBmpDataPtr : PRGB32;
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//Works on linux as well, test it out
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TargetDC : HDC;
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DrawBitmap : TBitmap;
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DrawBmpW,DrawBmpH : integer;
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{$ENDIF}
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{$IFDEF LINUX}
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// X Display
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XDisplay: PDisplay;
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// Connection Number
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XConnectionNumber: Integer;
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// X Window
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CurWindow: x.TWindow;
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// Desktop Window
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DesktopWindow: x.TWindow;
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// X Screen
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XScreen: PScreen;
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// X Screen Number
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XScreenNum: Integer;
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// The X Image pointer.
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XWindowImage: PXImage;
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{$IFDEF M_MEMORY_DEBUG}
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// XImageFreed should be True if there is currently no
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// XImage loaded. If one is loaded, XImageFreed is true.
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// If ReturnData is called while XImageFreed is false,
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// we throw an exception.
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// Same for FreeReturnData with XImageFreed true.
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XImageFreed: Boolean;
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{$ENDIF}
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{$ELSE}
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{$ENDIF}
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ArrayPtr: PRGB32;
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ArraySize: TPoint;
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property Frozen: boolean read FreezeState;
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end;
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implementation
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uses
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Client, // For the Client Class
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windowutil, // For utilities such as XImageToRawImage
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GraphType // For TRawImage
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;
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constructor TMWindow.Create;
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begin
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inherited Create;
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Self.FrozenData:= nil;
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Self.FrozenSize := Classes.Point(-1,-1);
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Self.FreezeState := False;
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Self.ArrayPtr := nil;
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Self.ArraySize := Classes.Point(-1, -1);
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{$IFDEF MSWINDOWS}
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Self.DrawBitmap := TBitmap.Create;
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Self.DrawBitmap.PixelFormat:= pf32bit;
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Self.TargetMode:= w_Window;
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Self.TargetHandle:= windows.GetDesktopWindow;
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Self.TargetDC:= GetWindowDC(Self.TargetHandle);
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Self.UpdateDrawBitmap;
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{$ENDIF}
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{$IFDEF LINUX}
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Self.XImageFreed:=True;
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Self.TargetMode := w_XWindow;
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Self.XDisplay := XOpenDisplay(nil);
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if Self.XDisplay = nil then
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begin
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// throw Exception
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end;
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Self.XConnectionNumber:= ConnectionNumber(Self.XDisplay);
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Self.XScreen := XDefaultScreenOfDisplay(Self.XDisplay);
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Self.XScreenNum:= DefaultScreen(Self.XDisplay);
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// The Root Window is the Desktop. :-)
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Self.DesktopWindow:= RootWindow(Self.XDisplay, Self.XScreenNum);
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Self.CurWindow:= Self.DesktopWindow;
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{$ENDIF}
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end;
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destructor TMWindow.Destroy;
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begin
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if FreezeState then
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if FrozenData <> nil then
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FreeMem(FrozenData);
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{$IFDEF LINUX}
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XCloseDisplay(Self.XDisplay);
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{$ENDIF}
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{$IFDEF MSWINDOWS}
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if TargetMode = w_Window then
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ReleaseDC(TargetHandle,TargetDC);
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DrawBitmap.Free;
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{$ENDIF}
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inherited;
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end;
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procedure TMWindow.SetWindow(Window: TMWindow);
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begin
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case Window.TargetMode of
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w_BMP, w_Window, w_HDC:
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{$IFDEF WINDOWS}
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Self.SetTarget(Window.TargetHandle, Window.TargetMode);
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{$ELSE}
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writeln('TMWindow.SetWindow - Handle not supported');
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{$ENDIF}
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// I don't think array can ever be set at this point.
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// Let's just add it anyway. ;)
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w_ArrayPtr:
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Self.SetTarget(Window.ArrayPtr, Window.ArraySize);
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w_XWindow:
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{$IFDEF LINUX}
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Self.SetTarget(Window.CurWindow);
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{$ELSE}
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writeln('TMWindow.SetWindow - XImage not supported');
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{$ENDIF}
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end;
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end;
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procedure TMWindow.SetDesktop;
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begin
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{$IFDEF LINUX}
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Self.SetTarget(Self.DesktopWindow);
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{$ELSE}
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Self.SetTarget(windows.GetDesktopWindow, w_Window);
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{$ENDIF}
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end;
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function TMWindow.GetColor(x, y: integer): TColor;
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begin
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{$IFDEF WINDOWS}
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if Self.TargetMode = w_Window then
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Result := GetPixel(Self.TargetDC,x,y)
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else
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{$ENDIF}
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begin
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with ReturnData(x,y,1,1) do
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Result := RGBToColor(Ptr[0].r,Ptr[0].g,Ptr[0].b);
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FreeReturnData;
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end;
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end;
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function TMWindow.ReturnData(xs, ys, width, height: Integer): TRetData;
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var
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{$IFDEF LINUX}
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Old_Handler: TXErrorHandler;
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{$ENDIF}
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TmpData: PRGB32;
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w,h : integer;
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begin
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Self.GetDimensions(w,h);
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if (xs < 0) or (xs + width > w) or (ys < 0) or (ys + height > h) then
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raise Exception.CreateFMT('TMWindow.ReturnData: The parameters passed are wrong; xs,ys %d,%d width,height %d,%d',[xs,ys,width,height]);
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if Self.Frozen then
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begin;
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TmpData := Self.FrozenData;
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Inc(TmpData, ys * width + xs);
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Result.Ptr:= tmpData;
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Result.IncPtrWith:= Self.FrozenSize.x - width;
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end else
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case Self.TargetMode of
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w_Window:
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begin
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{$IFDEF MSWINDOWS}
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BitBlt(Self.DrawBitmap.Canvas.Handle,0,0, width, height, Self.TargetDC, xs,ys, SRCCOPY);
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Result.Ptr:= Self.DrawBmpDataPtr;
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Result.IncPtrWith:= DrawBmpW - Width;
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{$ENDIF}
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end;
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w_XWindow:
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begin
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{$IFDEF LINUX}
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{ Should be this. }
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Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
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Self.XWindowImage := XGetImage(Self.XDisplay, Self.curWindow, xs, ys, width, height, AllPlanes, ZPixmap);
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if QWord(Self.XWindowImage) = 0 then
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begin
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Writeln('ReturnData: XGetImage Error. Dumping data now:');
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Writeln('xs, ys, width, height: ' + inttostr(xs) + ', ' + inttostr(ys) +
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', ' + inttostr(width) + ', ' + inttostr(height));
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Result.Ptr := nil;
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Result.IncPtrWith := 0;
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XSetErrorHandler(Old_Handler);
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Exit;
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end;
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//WriteLn(IntToStr(Self.XWindowImage^.width) + ', ' + IntToStr(Self.XWindowImage^.height));
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Result.Ptr := PRGB32(Self.XWindowImage^.data);
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Result.IncPtrWith := 0;
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Self.XImageFreed:=False;
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XSetErrorHandler(Old_Handler);
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{$ELSE}
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raise Exception.createFMT('ReturnData: You cannot use ' +
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'the XImage mode on Windows.', []);
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{$ENDIF}
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end;
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w_ArrayPtr:
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begin
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// Copy the pointer as we will perform operations on it.
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TmpData := Self.ArrayPtr;
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// Increase the pointer to the specified start of the data.
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Inc(TmpData, ys * width + xs);
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Result.Ptr := TmpData;
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Result.IncPtrWith:= Self.ArraySize.x - width;
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end;
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end;
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end;
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procedure TMWindow.FreeReturnData;
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begin
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if (Self.TargetMode <> w_XWindow) or FreezeState then
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Exit;
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{$IFDEF LINUX}
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if not Self.XImageFreed then
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begin
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Self.XImageFreed:=True;
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if(QWord(Self.XWindowImage) <> 0) then // 0, nil?
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begin
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XDestroyImage(Self.XWindowImage);
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end;
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end;
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{$ENDIF}
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end;
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// This will draw the ENTIRE client to a bitmap.
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// And ReturnData / CopyClientToBitmap will always use this bitmap.
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// They must NEVER update, unless Unfreeze is called.
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// I am not entirely sure how to do this, yet.
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// Best option for now seems to copy the entire data to a PRGB32,
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// and use it like the ArrPtr mode.
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// I currently added "Frozen", "FreezeState", "Freeze" and "Unfreeze".
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// We will have to either "abuse" the current system, and set the client to
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// PtrArray mode, or edit in some extra variables.
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// (We will still need extra variables to remember the old mode,
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// to which we will switch back with Unfreeze.)
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// Several ways to do it, what's the best way?
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// Also, should a box be passed to Freeze, or should we just copy the entire
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// client?
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function TMWindow.Freeze: Boolean;
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var
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w,h,x,y : integer;
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PtrReturn : TRetData;
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begin
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if Self.FreezeState then
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raise Exception.CreateFMT('TMWindow.Freeze: The window is already frozen.',[]);
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Result := true;
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Self.GetDimensions(w,h);
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Self.FrozenSize := Classes.Point(w,h);
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PtrReturn := Self.ReturnData(0,0,w,h);
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GetMem(Self.FrozenData, w * h * sizeof(TRGB32));
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Move(PtrReturn.Ptr[0], FrozenData[0], w*h*sizeof(TRGB32));
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Self.FreeReturnData;
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Self.FreezeState:=True;
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end;
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function TMWindow.Unfreeze: Boolean;
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begin
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if Self.FreezeState = false then
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raise Exception.CreateFMT('TMWindow.Unfreeze: The window is not frozen.',[]);
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FreeMem(Self.FrozenData);
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Self.FrozenData := nil;
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Result := True;
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Self.FreezeState:=False;
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end;
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// Bugged. For params other than 0, 0, ClientWidth, ClientHeight
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// if other type than w_XImage
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// Also possibly thread bugged
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function TMWindow.CopyClientToBitmap(xs, ys, xe, ye: integer): TBitmap;
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var
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w,h: Integer;
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ww, hh: Integer;
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Raw: TRawImage;
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Bmp: TBitmap;
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y : integer;
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TempData : PRGB32;
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{$IFDEF LINUX}
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Old_Handler: TXErrorHandler;
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Img: PXImage;
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{$ENDIF}
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begin
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Self.GetDimensions(w, h);
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ww := xe-xs;
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hh := ye-ys;
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if(xs < 0) or (ys < 0) or (xe > W) or (ye > H) then
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Raise Exception.CreateFMT('CopyClientToBitmap TMWindow: Faulty coordinates (%d,%d)(%d,%d); Width/Height is (%d,%d)',[xs,ys,xe,ye,w,h]);
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if Self.Frozen then
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begin;
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TempData:= GetMem((ww + 1) * (hh + 1) * sizeof(TRGB32));
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for y := ys to ye do
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Move(Self.FrozenData[y*Self.FrozenSize.x],TempData[(y-ys) * (ww+1)],(ww+1) * SizeOf(TRGB32));
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ArrDataToRawImage(TempData,Classes.Point(ww + 1,hh + 1),Raw);
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Bmp := TBitmap.Create;
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Bmp.LoadFromRawImage(Raw,true);
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Result := bmp;
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end else
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case Self.TargetMode Of
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w_Window:
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begin
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{$IFDEF MSWINDOWS}
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Result := TBitmap.Create;
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Result.SetSize(ww+1,hh+1);
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BitBlt(result.canvas.handle,0,0,ww+1,hh+1,
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self.TargetDC,xs,ys, SRCCOPY);
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{$ENDIF}
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end;
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w_XWindow:
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begin
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{$IFDEF LINUX}
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Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
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Img := XGetImage(Self.XDisplay, Self.curWindow, xs, ys, ww, hh, AllPlanes, ZPixmap);
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XImageToRawImage(Img, Raw);
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Bmp := TBitmap.Create;
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Bmp.LoadFromRawImage(Raw, False);
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Result := Bmp;
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XDestroyImage(Img);
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XSetErrorHandler(Old_Handler);
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{$ELSE}
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raise Exception.createFMT('CopyClientToBitmap: You cannot use ' +
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'the XImage mode on Windows.', []);
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{$ENDIF}
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end;
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w_ArrayPtr:
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begin
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TempData:= GetMem((ww + 1) * (hh + 1) * sizeof(trgb32));
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for y := ys to ye do
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Move(Self.ArrayPtr[y*Self.ArraySize.x],TempData[(y-ys) * (ww+1)],(ww+1) * SizeOf(TRGB32));
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ArrDataToRawImage(TempData,Classes.Point(ww+1,hh+1),Raw);
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Bmp := TBitmap.Create;
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Bmp.LoadFromRawImage(Raw,true);
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Result := bmp;
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end;
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end;
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end;
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procedure TMWindow.ActivateClient;
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{$IFDEF LINUX}
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var
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Old_Handler: TXErrorHandler;
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{$ENDIF}
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begin
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{$IFDEF MSWINDOWS}
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if TargetMode = w_Window then
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SetForegroundWindow(Self.TargetHandle);
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{$ENDIF}
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{$IFDEF LINUX}
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Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
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if TargetMode = w_XWindow then
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XSetInputFocus(Self.XDisplay,Self.CurWindow,RevertToParent,CurrentTime);
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XSetErrorHandler(Old_Handler);
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{$ENDIF}
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end;
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{$IFDEF MSWINDOWS} //Probably need one for Linux as well
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function TMWindow.UpdateDrawBitmap :boolean;
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var
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w,h : integer;
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BmpInfo : Windows.TBitmap;
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begin
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GetDimensions(w,h);
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DrawBitmap.SetSize(w,h);
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// DrawBitmap.PixelFormat:=
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DrawBmpW := w;
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DrawBmpH := h;
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GetObject(DrawBitmap.Handle, SizeOf(BmpInfo), @BmpInfo);
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DrawBmpDataPtr := BmpInfo.bmBits;
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end;
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{$ENDIF}
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procedure TMWindow.GetDimensions(var W, H: Integer);
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{$IFDEF LINUX}
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var
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Attrib: TXWindowAttributes;
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newx,newy : integer;
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childwindow : x.TWindow;
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Old_Handler: TXErrorHandler;
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{$ENDIF}
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{$IFDEF MSWINDOWS}
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var
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Rect : TRect;
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{$ENDIF}
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begin
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if Frozen then
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begin;
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w := FrozenSize.x;
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h := FrozenSize.y;
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end else
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case TargetMode of
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w_Window:
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begin
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{$IFDEF MSWINDOWS}
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GetWindowRect(Self.TargetHandle, Rect);
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w:= Rect.Right - Rect.Left;
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h:= Rect.Bottom - Rect.Top;
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{$ENDIF}
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end;
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w_XWindow:
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begin
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{$IFDEF LINUX}
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Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
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if XGetWindowAttributes(Self.XDisplay, Self.CurWindow, @Attrib) <> 0 Then
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begin
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XTranslateCoordinates(Self.XDisplay, Self.CurWindow, Self.DesktopWindow, 0,0, @newx, @newy, @childwindow);
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W := Attrib.Width;
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H := Attrib.Height;
|
|
end else
|
|
begin
|
|
W := -1;
|
|
H := -1;
|
|
end;
|
|
XSetErrorHandler(Old_Handler);
|
|
{$ELSE}
|
|
raise Exception.createFMT('GetDimensions: You cannot use ' +
|
|
'the XImage mode on Windows.', []);
|
|
{$ENDIF}
|
|
end;
|
|
w_ArrayPtr:
|
|
begin
|
|
W := Self.ArraySize.X;
|
|
H := Self.ArraySize.Y;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{$IFDEF LINUX}
|
|
function TMWindow.SetTarget(XWindow: x.TWindow): integer; overload;
|
|
var
|
|
Old_Handler: TXErrorHandler;
|
|
begin
|
|
if Self.Frozen then
|
|
raise Exception.CreateFMT('You cannot set a target when Frozen',[]);
|
|
Old_Handler := XSetErrorHandler(@MufasaXErrorHandler);
|
|
Self.CurWindow := XWindow;
|
|
Self.TargetMode:= w_XWindow;
|
|
XSetErrorHandler(Old_Handler);
|
|
end;
|
|
{$ENDIF}
|
|
|
|
function TMWindow.SetTarget(Window: THandle; NewType: TTargetWindowMode): integer; overload;
|
|
begin
|
|
if Self.Frozen then
|
|
raise Exception.CreateFMT('You cannot set a target when Frozen',[]);
|
|
if NewType in [ w_XWindow, w_ArrayPtr ] then
|
|
raise Exception.createFMT('SetTarget: Invalid new type.', []);
|
|
case NewType of
|
|
w_Window :
|
|
begin;
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
ReleaseDC(Self.TargetHandle,Self.TargetDC);
|
|
Self.TargetHandle := Window;
|
|
Self.TargetDC := GetWindowDC(Window);
|
|
{$ENDIF}
|
|
end;
|
|
end;
|
|
{$IFDEF MSWINDOWS}
|
|
UpdateDrawBitmap;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
{
|
|
This functionality is very BETA.
|
|
We have no way to send events to a window, so we should probably use the
|
|
desktop window?
|
|
|
|
eg: In mouse/keys: if Self.TargetMode not in [w_Window, w_XWindow], send it
|
|
to the desktop.
|
|
}
|
|
function TMWindow.SetTarget(ArrPtr: PRGB32; Size: TPoint): integer; overload;
|
|
begin
|
|
if Self.Frozen then
|
|
raise Exception.CreateFMT('You cannot set a target when Frozen',[]);
|
|
If Self.TargetMode = w_XWindow then
|
|
Self.FreeReturnData;
|
|
|
|
Self.ArrayPtr := ArrPtr;
|
|
Self.ArraySize := Size;
|
|
Self.TargetMode:= w_ArrayPtr;
|
|
|
|
{$IFDEF LINUX}
|
|
Self.CurWindow := Self.DesktopWindow;
|
|
{$ENDIF}
|
|
|
|
{$IFDEF WINDOWS}
|
|
Self.TargetHandle:= windows.GetDesktopWindow;
|
|
{$ENDIF}
|
|
|
|
end;
|
|
|
|
end.
|
|
|