.break .if (!eax)
		invoke IsDialogMessage,hSearch,addr msg
		.if eax==FALSE
			invoke TranslateAccelerator,hwnd,hAccel,addr msg
			.if eax==0
				invoke TranslateMessage, ADDR msg
				invoke DispatchMessage, ADDR msg
			.endif
		.endif
	.endw
	mov   eax,msg.wParam
	ret
WinMain endp

StreamInProc proc hFile:DWORD,pBuffer:DWORD, NumBytes:DWORD, pBytesRead:DWORD
	invoke ReadFile,hFile,pBuffer,NumBytes,pBytesRead,0
	xor eax,1
	ret
StreamInProc endp

StreamOutProc proc hFile:DWORD,pBuffer:DWORD, NumBytes:DWORD, pBytesWritten:DWORD
	invoke WriteFile,hFile,pBuffer,NumBytes,pBytesWritten,0
	xor eax,1
	ret
StreamOutProc endp

CheckModifyState proc hWnd:DWORD
	invoke SendMessage,hwndRichEdit,EM_GETMODIFY,0,0
	.if eax!=0
		invoke MessageBox,hWnd,addr WannaSave,addr AppName,MB_YESNOCANCEL
		.if eax==IDYES
			invoke SendMessage,hWnd,WM_COMMAND,IDM_SAVE,0
		.elseif eax==IDCANCEL
			mov eax,FALSE
			ret
		.endif
	.endif
	mov eax,TRUE
	ret
CheckModifyState endp

SetColor proc
	LOCAL cfm:CHARFORMAT
	invoke SendMessage,hwndRichEdit,EM_SETBKGNDCOLOR,0,BackgroundColor
	invoke RtlZeroMemory,addr cfm,sizeof cfm
	mov cfm.cbSize,sizeof cfm
	mov cfm.dwMask,CFM_COLOR
	push TextColor
	pop cfm.crTextColor
	invoke SendMessage,hwndRichEdit,EM_SETCHARFORMAT,SCF_ALL,addr cfm
	ret
SetColor endp

OptionProc proc hWnd:DWORD, uMsg:DWORD, wParam:DWORD, lParam:DWORD
	LOCAL clr:CHOOSECOLOR
	.if uMsg==WM_INITDIALOG
	.elseif uMsg==WM_COMMAND
		mov eax,wParam
		shr eax,16
		.if ax==BN_CLICKED
			mov eax,wParam
			.if ax==IDCANCEL
				invoke SendMessage,hWnd,WM_CLOSE,0,0
			.elseif ax==IDC_BACKCOLORBOX
				invoke RtlZeroMemory,addr clr,sizeof clr
				mov clr.lStructSize,sizeof clr
				push hWnd
				pop clr.hwndOwner
				push hInstance
				pop clr.hInstance
				push BackgroundColor
				pop clr.rgbResult
				mov clr.lpCustColors,offset CustomColors
				mov clr.Flags,CC_ANYCOLOR or CC_RGBINIT
				invoke ChooseColor,addr clr
				.if eax!=0
					push clr.rgbResult
					pop BackgroundColor
					invoke GetDlgItem,hWnd,IDC_BACKCOLORBOX
					invoke InvalidateRect,eax,0,TRUE
				.endif
			.elseif ax==IDC_TEXTCOLORBOX
				invoke RtlZeroMemory,addr clr,sizeof clr
				mov clr.lStructSize,sizeof clr
				push hWnd
				pop clr.hwndOwner
				push hInstance
				pop clr.hInstance
				push TextColor
				pop clr.rgbResult
				mov clr.lpCustColors,offset CustomColors
				mov clr.Flags,CC_ANYCOLOR or CC_RGBINIT
				invoke ChooseColor,addr clr
				.if eax!=0
					push clr.rgbResult
					pop TextColor
					invoke GetDlgItem,hWnd,IDC_TEXTCOLORBOX
					invoke InvalidateRect,eax,0,TRUE
				.endif
			.elseif ax==IDOK
				invoke SendMessage,hwndRichEdit,EM_GETMODIFY,0,0
				push eax
				invoke SetColor
				pop eax
				invoke SendMessage,hwndRichEdit,EM_SETMODIFY,eax,0
				invoke EndDialog,hWnd,0
			.endif
		.endif
	.elseif uMsg==WM_CTLCOLORSTATIC
		invoke GetDlgItem,hWnd,IDC_BACKCOLORBOX
		.if eax==lParam
			invoke CreateSolidBrush,BackgroundColor			
			ret
		.else
			invoke GetDlgItem,hWnd,IDC_TEXTCOLORBOX
			.if eax==lParam
				invoke CreateSolidBrush,TextColor
				ret
			.endif
		.endif
		mov eax,FALSE
		ret
	.elseif uMsg==WM_CLOSE
		invoke EndDialog,hWnd,0
	.else
		mov eax,FALSE
		ret
	.endif
	mov eax,TRUE
	ret
OptionProc endp

SearchProc proc hWnd:DWORD, uMsg:DWORD, wParam:DWORD, lParam:DWORD
	.if uMsg==WM_INITDIALOG
		push hWnd
		pop hSearch
		invoke CheckRadioButton,hWnd,IDC_DOWN,IDC_UP,IDC_DOWN
		invoke SendDlgItemMessage,hWnd,IDC_FINDEDIT,WM_SETTEXT,0,addr FindBuffer
	.elseif uMsg==WM_COMMAND
		mov eax,wParam
		shr eax,16
		.if ax==BN_CLICKED
			mov eax,wParam
			.if ax==IDOK
				mov uFlags,0
				invoke SendMessage,hwndRichEdit,EM_EXGETSEL,0,addr findtext.chrg
				invoke GetDlgItemText,hWnd,IDC_FINDEDIT,addr FindBuffer,sizeof FindBuffer
				.if eax!=0
					invoke IsDlgButtonChecked,hWnd,IDC_DOWN
					.if eax==BST_CHECKED
						or uFlags,FR_DOWN
						mov eax,findtext.chrg.cpMin
						.if eax!=findtext.chrg.cpMax
							push findtext.chrg.cpMax
							pop findtext.chrg.cpMin
						.endif
						mov findtext.chrg.cpMax,-1
					.else
						mov findtext.chrg.cpMax,0
					.endif
					invoke IsDlgButtonChecked,hWnd,IDC_MATCHCASE
					.if eax==BST_CHECKED
						or uFlags,FR_MATCHCASE
					.endif
					invoke IsDlgButtonChecked,hWnd,IDC_WHOLEWORD
					.if eax==BST_CHECKED
						or uFlags,FR_WHOLEWORD
					.endif
					mov findtext.lpstrText,offset FindBuffer
					invoke SendMessage,hwndRichEdit,EM_FINDTEXTEX,uFlags,addr findtext
					.if eax!=-1
						invoke SendMessage,hwndRichEdit,EM_EXSETSEL,0,addr findtext.chrgText
					.endif
				.endif
			.elseif ax==IDCANCEL
				invoke SendMessage,hWnd,WM_CLOSE,0,0
			.else
				mov eax,FALSE
				ret
			.endif
		.endif
	.elseif uMsg==WM_CLOSE
		mov hSearch,0
		invoke EndDialog,hWnd,0
	.else
		mov eax,FALSE
		ret
	.endif
	mov eax,TRUE
	ret
SearchProc endp

ReplaceProc proc hWnd:DWORD, uMsg:DWORD, wParam:DWORD, lParam:DWORD
	LOCAL settext:SETTEXTEX
	.if uMsg==WM_INITDIALOG
		push hWnd
		pop hSearch
		invoke SetDlgItemText,hWnd,IDC_FINDEDIT,addr FindBuffer
		invoke SetDlgItemText,hWnd,IDC_REPLACEEDIT,addr ReplaceBuffer
	.elseif uMsg==WM_COMMAND
		mov eax,wParam
		shr eax,16
		.if ax==BN_CLICKED
			mov eax,wParam
			.if ax==IDCANCEL
				invoke SendMessage,hWnd,WM_CLOSE,0,0
			.elseif ax==IDOK
				invoke GetDlgItemText,hWnd,IDC_FINDEDIT,addr FindBuffer,sizeof FindBuffer
				invoke GetDlgItemText,hWnd,IDC_REPLACEEDIT,addr ReplaceBuffer,sizeof ReplaceBuffer
				mov findtext.chrg.cpMin,0
				mov findtext.chrg.cpMax,-1
				mov findtext.lpstrText,offset FindBuffer
				mov settext.flags,ST_SELECTION
				mov settext.codepage,CP_ACP
				.while TRUE
					invoke SendMessage,hwndRichEdit,EM_FINDTEXTEX,FR_DOWN,addr findtext
					.if eax==-1
						.break
					.else
						invoke SendMessage,hwndRichEdit,EM_EXSETSEL,0,addr findtext.chrgText
						invoke SendMessage,hwndRichEdit,EM_SETTEXTEX,addr settext,addr ReplaceBuffer
					.endif
				.endw
			.endif
		.endif
	.elseif uMsg==WM_CLOSE
		mov hSearch,0
		invoke EndDialog,hWnd,0
	.else
		mov eax,FALSE
		ret
	.endif
	mov eax,TRUE
	ret
ReplaceProc endp

GoToProc proc hWnd:DWORD, uMsg:DWORD, wParam:DWORD, lParam:DWORD
	LOCAL LineNo:DWORD
	LOCAL chrg:CHARRANGE
	.if uMsg==WM_INITDIALOG
		push hWnd
		pop hSearch
	.elseif uMsg==WM_COMMAND
		mov eax,wParam
		shr eax,16
		.if ax==BN_CLICKED
			mov eax,wParam
			.if ax==IDCANCEL
				invoke SendMessage,hWnd,WM_CLOSE,0,0
			.elseif ax==IDOK
				invoke GetDlgItemInt,hWnd,IDC_LINENO,NULL,FALSE
				mov LineNo,eax
				invoke SendMessage,hwndRichEdit,EM_GETLINECOUNT,0,0
				.if eax>LineNo
					invoke SendMessage,hwndRichEdit,EM_LINEINDEX,LineNo,0
					mov chrg.cpMin,eax
					mov chrg.cpMax,eax
					invoke SendMessage,hwndRichEdit,EM_EXSETSEL,0,addr chrg
					invoke SetFocus,hwndRichEdit
				.endif
			.endif
		.endif
	.elseif uMsg==WM_CLOSE
		mov hSearch,0
		invoke EndDialog,hWnd,0
	.else
		mov eax,FALSE
		ret
	.endif
	mov eax,TRUE
	ret
GoToProc endp

PrepareEditMenu proc hSubMenu:DWORD
	LOCAL chrg:CHARRANGE
	invoke SendMessage,hwndRichEdit,EM_CANPASTE,CF_TEXT,0
	.if eax==0		; no text in the clipboard
		invoke EnableMenuItem,hSubMenu,IDM_PASTE,MF_GRAYED
	.else
		invoke EnableMenuItem,hSubMenu,IDM_PASTE,MF_ENABLED
	.endif
	invoke SendMessage,hwndRichEdit,EM_CANUNDO,0,0
	.if eax==0
		invoke EnableMenuItem,hSubMenu,IDM_UNDO,MF_GRAYED
	.else
		invoke EnableMenuItem,hSubMenu,IDM_UNDO,MF_ENABLED
	.endif
	invoke SendMessage,hwndRichEdit,EM_CANREDO,0,0
	.if eax==0
		invoke EnableMenuItem,hSubMenu,IDM_REDO,MF_GRAYED
	.else
		invoke EnableMenuItem,hSubMenu,IDM_REDO,MF_ENABLED
	.endif
	invoke SendMessage,hwndRichEdit,EM_EXGETSEL,0,addr chrg
	mov eax,chrg.cpMin
	.if eax==chrg.cpMax		; no current selection
		invoke EnableMenuItem,hSubMenu,IDM_COPY,MF_GRAYED
		invoke EnableMenuItem,hSubMenu,IDM_CUT,MF_GRAYED
		invoke EnableMenuItem,hSubMenu,IDM_DELETE,MF_GRAYED
	.else
		invoke EnableMenuItem,hSubMenu,IDM_COPY,MF_ENABLED
		invoke EnableMenuItem,hSubMenu,IDM_CUT,MF_ENABLED
		invoke EnableMenuItem,hSubMenu,IDM_DELETE,MF_ENABLED
	.endif
	ret
PrepareEditMenu endp

WndProc proc hWnd:DWORD, uMsg:DWORD, wParam:DWORD, lParam:DWORD
	LOCAL ofn:OPENFILENAME
	LOCAL buffer[256]:BYTE
	LOCAL editstream:EDITSTREAM
	LOCAL hFile:DWORD
	LOCAL hPopup:DWORD
	LOCAL pt:POINT
	LOCAL chrg:CHARRANGE
	.if uMsg==WM_CREATE
		invoke CreateWindowEx,WS_EX_CLIENTEDGE,addr RichEditClass,0,WS_CHILD or WS_VISIBLE or ES_MULTILINE or WS_VSCROLL or WS_HSCROLL or ES_NOHIDESEL,\
				CW_USEDEFAULT,CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,hWnd,RichEditID,hInstance,0
		mov hwndRichEdit,eax