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{$IFNDEF M_ANISMILEY}
{$DEFINE M_ANISMILEY}
const
IASF_UNICODE = 1;
type
TINSERTANISMILEY = record
cbSize :size_t;
hWnd :HWND;
szFilename :TChar;
dwBackColor:COLORREF;
nHeight :int;
dwFlags :dword;
end;
tagINSERTANISMILEY = TINSERTANISMILEY;
const
MS_INSERTANISMILEY :PAnsiChar = 'mAnimator/InsertSmiley';
(*
function InsertAnimatedSmiley(wnd:HWND;filename:TChar;Back:TCOLORREF;height:int):bool;
const
bServiceExists:int=-1
var
ias:TINSERTANISMILEY;
begin
if bServiceExists=-1 then
bServiceExists:=ServiceExists(MS_INSERTANISMILEY);
if bServiceExists=0 then
result:=false
else
begin
ias.cbSize :=SizeOf(TINSERTANISMILEY);
ias.hWnd :=wnd;
ias.tcsFilename:=Filename.w;
ias.dwFlags :=IASF_UNICODE;
ias.nHeight :=Height;
ias.dwBackColor:=Back;
result:=CallService(MS_INSERTANISMILEY,WPARAM(@ias),0)<>0;
end;
end;
BOOL InsertAnimatedSmiley(HWND _hwnd, TCHAR * _szFilename, COLORREF _dwBack, int _nHeight)
{
static int bServiceExists=-1;
ias={0};
if (bServiceExists==-1)
bServiceExists=ServiceExists(MS_INSERTANISMILEY);
if (!bServiceExists) return FALSE;
ias.cbSize=sizeof(INSERTANISMILEY);
ias.hWnd=_hwnd;
ias.tcsFilename=_szFilename;
ias.dwFlags=IASF_TCHAR;
ias.nHeight=_nHeight;
ias.dwBackColor=_dwBack;
return (BOOL) CallService(MS_INSERTANISMILEY,(WPARAM)&ias, 0);
};
*)
{
NM_FIREVIEWCHANGE is WM_NOTIFY Message for notify parent of host window about smiley are going to be repaint
The proposed action is next: Owner of RichEdit windows received NM_FIREVIEWCHANGE through WM_NOTIFY
twice first time before painting|invalidating (FVCN_PREFIRE) and second time - after (FVCN_POSTFIRE).
The Owner window may change any values of received FVCNDATA_NMHDR structure in order to raise needed action.
For example it may substitute FVCA_INVALIDATE to FVCA_CUSTOMDRAW event to force painting on self offscreen context.
It can be:
FVCA_CUSTOMDRAW - in this case you need to provide valid HDC to draw on and valid RECT of smiley
FVCA_INVALIDATE - to invalidate specified rect of window
FVCA_NONE - skip any action. But be aware - animation will be stopped till next repainting of smiley.
FVCA_SENDVIEWCHANGE - to notify richedit ole about object changed. Be aware Richedit will fully reconstruct itself
Another point is moment of received smiley rect - it is only valid if FVCA_DRAW is initially set,
and it is PROBABLY valid if FVCA_INVALIDATE is set. And it most probably invalid in case of FVCA_SENDVIEWCHANGE.
The smiley position is relative last full paint HDC. Usually it is relative to top-left corner of host
richedit (NOT it client area) in windows coordinates.
}
const
// Type of Event one of
FVCN_PREFIRE = 1;
FVCN_POSTFIRE = 2;
// Action of event are going to be done
FVCA_NONE = 0;
FVCA_DRAW = 1; // do not modify hdc in case of _DRAW, Use _CUSTOMDRAW
FVCA_CUSTOMDRAW = 2;
FVCA_INVALIDATE = 3;
FVCA_SENDVIEWCHANGE = 4;
FVCA_SKIPDRAW = 5;
// Extended NMHDR structure for WM_NOTIFY
type
TFVCNDATA_NMHDR = record
//NMHDR structure
hwndFrom :HWND; // Window of smiley host
idFrom :uint_ptr; // ignored
code :uint; // NM_FIREVIEWCHANGE
cbSize :size_t;
bEvent :byte; // FVCN_ value - pre- or post- painting
bAction :byte; // FVCA_ keys
hDC :HDC; // Canvas to draw on
rcRect :TRECT; // Valid/should be in case of FVCA_DRAW
clrBackground:TCOLORREF; // color to fill background if fTransparent is not set
fTransparent :bool; // if need to fill back color
lParam :LPARAM; // used by host window PreFire and PostFire event
end;
const
// Code of WM_NOTIFY message (code)
NM_FIREVIEWCHANGE = NM_FIRST+1;
{$ENDIF}
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