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unit dwTaskbarList;
{$mode delphi}{$H+}
interface
uses
Messages
, Windows
;
const
CLSID_TaskbarList: TGUID = '{56FDF344-FD6D-11D0-958A-006097C9A090}';
CLSID_TaskbarList2: TGUID = '{602D4995-B13A-429B-A66E-1935E44F4317}';
CLSID_TaskbarList3: TGUID = '{EA1AFB91-9E28-4B86-90E9-9E9F8A5EEFAF}';
const
THBF_ENABLED = $0000;
THBF_DISABLED = $0001;
THBF_DISMISSONCLICK = $0002;
THBF_NOBACKGROUND = $0004;
THBF_HIDDEN = $0008;
const
THB_BITMAP = $0001;
THB_ICON = $0002;
THB_TOOLTIP = $0004;
THB_FLAGS = $0008;
const
THBN_CLICKED = $1800;
const
TBPF_NOPROGRESS = $00;
TBPF_INDETERMINATE = $01;
TBPF_NORMAL = $02;
TBPF_ERROR= $04;
TBPF_PAUSED = $08;
const
TBATF_USEMDITHUMBNAIL: DWORD = $00000001;
TBATF_USEMDILIVEPREVIEW: DWORD = $00000002;
const
WM_DWMSENDICONICTHUMBNAIL = $0323;
WM_DWMSENDICONICLIVEPREVIEWBITMAP = $0326;
type
TTipString = array[0..259] of WideChar;
PTipString = ^TTipString;
tagTHUMBBUTTON = packed record
dwMask
: DWORD;
iId
, iBitmap
: UINT;
hIcon
: HICON;
szTip
: TTipString;
dwFlags
: DWORD;
end;
THUMBBUTTON = tagTHUMBBUTTON;
THUMBBUTTONLIST = ^THUMBBUTTON;
TThumbButton = THUMBBUTTON;
TThumbButtonList = array of TThumbButton;
type
ITaskbarList = interface
['{56FDF342-FD6D-11D0-958A-006097C9A090}']
procedure HrInit; safecall;
procedure AddTab(hwnd: HWND); safecall;
procedure DeleteTab(hwnd: HWND); safecall;
procedure ActivateTab(hwnd: HWND); safecall;
procedure SetActiveAlt(hwnd: HWND); safecall;
end;
ITaskbarList2 = interface(ITaskbarList)
['{602D4995-B13A-429B-A66E-1935E44F4317}']
procedure MarkFullscreenWindow(hwnd: HWND; fFullscreen: Bool); safecall;
end;
ITaskbarList3 = interface(ITaskbarList2)
['{EA1AFB91-9E28-4B86-90E9-9E9F8A5EEFAF}']
procedure SetProgressValue(hwnd: HWND; ullCompleted, ullTotal: ULONGLONG); safecall;
procedure SetProgressState(hwnd: HWND; tbpFlags: DWORD); safecall;
procedure RegisterTab(hwndTab: HWND; hwndMDI: HWND); safecall;
procedure UnregisterTab(hwndTab: HWND); safecall;
procedure SetTabOrder(hwndTab: HWND; hwndInsertBefore: HWND); safecall;
procedure SetTabActive(hwndTab: HWND; hwndMDI: HWND; tbatFlags: DWORD); safecall;
procedure ThumbBarAddButtons(hwnd: HWND; cButtons: UINT; Button: THUMBBUTTONLIST); safecall;
procedure ThumbBarUpdateButtons(hwnd: HWND; cButtons: UINT; pButton: THUMBBUTTONLIST); safecall;
procedure ThumbBarSetImageList(hwnd: HWND; himl: HIMAGELIST); safecall;
procedure SetOverlayIcon(hwnd: HWND; hIcon: HICON; pszDescription: LPCWSTR); safecall;
procedure SetThumbnailTooltip(hwnd: HWND; pszTip: LPCWSTR); safecall;
procedure SetThumbnailClip(hwnd: HWND; prcClip: PRect); safecall;
end;
const
DWM_SIT_DISPLAYFRAME = $00000001; // Display a window frame around the provided bitmap
DWMWA_FORCE_ICONIC_REPRESENTATION = 7; // [set] Force this window to display iconic thumbnails.
DWMWA_HAS_ICONIC_BITMAP = 10; // [set] Indicates an available bitmap when there is no better thumbnail representation.
DWMWA_DISALLOW_PEEK = 11; // [set] Don't invoke Peek on the window.
type
TWMDwmSendIconicLivePreviewBitmap = TWMNoParams;
TWMDwmSendIconicThumbnail = packed record
Msg
: Cardinal;
Unused
: Integer;
Height
, Width
: Word;
Result
: LongInt;
end;
function DwmInvalidateIconicBitmaps(hwnd: HWND): HRESULT;
function DwmSetIconicLivePreviewBitmap(hwnd: HWND; hbmp: HBITMAP; pptClient: PPoint; dwSITFlags: DWORD): HRESULT;
function DwmSetIconicThumbnail(hWnd: HWND; hBmp: HBITMAP; dwSITFlags: DWORD): HRESULT;
function DwmSetWindowAttribute(hwnd: HWND; dwAttribute: DWORD; pvAttribute: Pointer; cbAttribute: DWORD): HRESULT;
function PrintWindow(hwnd: HWND; hdcBlt: HDC; nFlags: UINT): BOOL;
implementation
var
hDWMAPI: HMODULE;
_DwmInvalidateIconicBitmaps: function(hwnd: HWND): HRESULT; stdcall;
_DwmSetIconicThumbnail: function(hWnd: HWND; hBmp: HBITMAP; dwSITFlags: DWORD): HRESULT; stdcall;
_DwmSetIconicLivePreviewBitmap: function(hwnd: HWND; hbmp: HBITMAP; pptClient: PPoint; dwSITFlags: DWORD): HRESULT; stdcall;
_DwmSetWindowAttribute: function(hwnd: HWND; dwAttribute: DWORD; pvAttribute: Pointer; cbAttribute: DWORD): HRESULT; stdcall;
_PrintWindow: function(hwnd: HWND; hdcBlt: HDC; nFlags: UINT): BOOL; stdcall;
procedure InitDwmApi;
begin
if hDWMAPI = 0 then
begin
hDWMAPI := LoadLibrary('DWMAPI.DLL');
if hDWMAPI = 0 then
begin
hDWMAPI := THandle(-1);
end
else
begin
_DwmInvalidateIconicBitmaps := GetProcAddress(hDWMAPI, 'DwmInvalidateIconicBitmaps');
_DwmSetIconicLivePreviewBitmap := GetProcAddress(hDWMAPI, 'DwmSetIconicLivePreviewBitmap');
_DwmSetIconicThumbnail := GetProcAddress(hDWMAPI, 'DwmSetIconicThumbnail');
_DwmSetWindowAttribute := GetProcAddress(hDWMAPI, 'DwmSetWindowAttribute');
end;
end;
end;
function DwmInvalidateIconicBitmaps(hwnd: HWND): HRESULT;
begin
InitDwmApi;
if Assigned(_DwmInvalidateIconicBitmaps) then
Result := _DwmInvalidateIconicBitmaps(hwnd)
else
Result := E_NOTIMPL;
end;
function DwmSetIconicLivePreviewBitmap(hwnd: HWND; hbmp: HBITMAP; pptClient: PPoint; dwSITFlags: DWORD): HRESULT;
begin
InitDwmApi;
if Assigned(_DwmSetIconicLivePreviewBitmap) then
Result := _DwmSetIconicLivePreviewBitmap(hwnd, hbmp, pptClient, dwSITFlags)
else
Result := E_NOTIMPL;
end;
function DwmSetIconicThumbnail(hWnd: HWND; hBmp: HBITMAP; dwSITFlags: DWORD): HRESULT;
begin
InitDwmApi;
if Assigned(_DwmSetIconicThumbnail) then
Result := _DwmSetIconicThumbnail(hWnd, hBmp, dwSITFlags)
else
Result := E_NOTIMPL;
end;
function DwmSetWindowAttribute(hwnd: HWND; dwAttribute: DWORD; pvAttribute: Pointer; cbAttribute: DWORD): HRESULT;
begin
InitDwmApi;
if Assigned(_DwmSetWindowAttribute) then
Result := _DwmSetWindowAttribute(hwnd, dwAttribute, pvAttribute, cbAttribute)
else
Result := E_NOTIMPL;
end;
{-----------------------------------------------}
function PrintWindow(hwnd: HWND; hdcBlt: HDC; nFlags: UINT): BOOL;
begin
if Assigned(_PrintWindow) then
begin
Result := _PrintWindow(hwnd, hdcBlt, nFlags);
end
else
begin
_PrintWindow := GetProcAddress(GetModuleHandle('user32.dll'), 'PrintWindow');
Result := Assigned(_PrintWindow) and _PrintWindow(hwnd, hdcBlt, nFlags);
end;
end;
end.
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