tut33.html

WINDOWS程序员使用指南--汇编基础

	.while TRUE
		invoke GetMessage, ADDR msg,0,0,0
		.break .if (!eax)
		invoke TranslateMessage, ADDR msg
		invoke DispatchMessage, ADDR msg
	.endw
	mov   eax,msg.wParam
	ret
WinMain endp

<font color="#003399">StreamInProc</font> proc hFile:DWORD,pBuffer:DWORD, NumBytes:DWORD, pBytesRead:DWORD
	invoke ReadFile,hFile,pBuffer,NumBytes,pBytesRead,0
	xor eax,1
	ret
<font color="#003399">StreamInProc</font> endp

<font color="#003399">StreamOutProc</font> proc hFile:DWORD,pBuffer:DWORD, NumBytes:DWORD, pBytesWritten:DWORD
	invoke WriteFile,hFile,pBuffer,NumBytes,pBytesWritten,0
	xor eax,1
	ret
<font color="#003399">StreamOutProc</font> endp

<font color="#003399">CheckModifyState</font> 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
<font color="#003399">CheckModifyState</font> endp

<font color="#003399">SetColor</font> 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
<font color="#003399">SetColor</font> endp

<font color="#003399">OptionProc</font> 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
				;==================================================================================
				; Save the modify state of the richedit control because changing the text color changes the
				; modify state of the richedit control.
				;==================================================================================
				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

WndProc proc hWnd:DWORD, uMsg:DWORD, wParam:DWORD, lParam:DWORD
	LOCAL chrg:CHARRANGE
	LOCAL ofn:OPENFILENAME
	LOCAL buffer[256]:BYTE
	LOCAL editstream:EDITSTREAM
	LOCAL hFile:DWORD
	.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
		;=============================================================
		; Set the text limit. The default is 64K
		;=============================================================
		invoke SendMessage,hwndRichEdit,EM_LIMITTEXT,-1,0
		;=============================================================
		; Set the default text/background color
		;=============================================================
		invoke SetColor
		invoke SendMessage,hwndRichEdit,EM_SETMODIFY,FALSE,0
		invoke SendMessage,hwndRichEdit,EM_EMPTYUNDOBUFFER,0,0
	.elseif uMsg==WM_INITMENUPOPUP
		mov eax,lParam
		.if ax==0		; file menu			
			.if FileOpened==TRUE	; a file is already opened
				invoke EnableMenuItem,wParam,IDM_OPEN,MF_GRAYED
				invoke EnableMenuItem,wParam,IDM_CLOSE,MF_ENABLED
				invoke EnableMenuItem,wParam,IDM_SAVE,MF_ENABLED
				invoke EnableMenuItem,wParam,IDM_SAVEAS,MF_ENABLED
			.else
				invoke EnableMenuItem,wParam,IDM_OPEN,MF_ENABLED
				invoke EnableMenuItem,wParam,IDM_CLOSE,MF_GRAYED
				invoke EnableMenuItem,wParam,IDM_SAVE,MF_GRAYED
				invoke EnableMenuItem,wParam,IDM_SAVEAS,MF_GRAYED
			.endif
		.elseif ax==1	; edit menu
			;=============================================================================
			; Check whether there is some text in the clipboard. If so, we enable the paste menuitem
			;=============================================================================
			invoke SendMessage,hwndRichEdit,EM_CANPASTE,CF_TEXT,0
			.if eax==0		; no text in the clipboard
				invoke EnableMenuItem,wParam,IDM_PASTE,MF_GRAYED
			.else
				invoke EnableMenuItem,wParam,IDM_PASTE,MF_ENABLED
			.endif
			;==========================================================
			; check whether the undo queue is empty
			;==========================================================
			invoke SendMessage,hwndRichEdit,EM_CANUNDO,0,0
			.if eax==0
				invoke EnableMenuItem,wParam,IDM_UNDO,MF_GRAYED
			.else
				invoke EnableMenuItem,wParam,IDM_UNDO,MF_ENABLED
			.endif
			;=========================================================
			; check whether the redo queue is empty
			;=========================================================
			invoke SendMessage,hwndRichEdit,EM_CANREDO,0,0
			.if eax==0
				invoke EnableMenuItem,wParam,IDM_REDO,MF_GRAYED
			.else
				invoke EnableMenuItem,wParam,IDM_REDO,MF_ENABLED
			.endif
			;=========================================================
			; check whether there is a current selection in the richedit control.
			; If there is, we enable the cut/copy/delete menuitem
			;=========================================================
			invoke SendMessage,hwndRichEdit,EM_EXGETSEL,0,addr chrg
			mov eax,chrg.cpMin
			.if eax==chrg.cpMax		; no current selection
				invoke EnableMenuItem,wParam,IDM_COPY,MF_GRAYED
				invoke EnableMenuItem,wParam,IDM_CUT,MF_GRAYED
				invoke EnableMenuItem,wParam,IDM_DELETE,MF_GRAYED
			.else
				invoke EnableMenuItem,wParam,IDM_COPY,MF_ENABLED
				invoke EnableMenuItem,wParam,IDM_CUT,MF_ENABLED
				invoke EnableMenuItem,wParam,IDM_DELETE,MF_ENABLED
			.endif
		.endif
	.elseif uMsg==WM_COMMAND
		.if lParam==0		; menu commands
			mov eax,wParam
			.if ax==IDM_OPEN
				invoke RtlZeroMemory,addr ofn,sizeof ofn
				mov ofn.lStructSize,sizeof ofn
				push hWnd
				pop ofn.hwndOwner
				push hInstance
				pop ofn.hInstance
				mov ofn.lpstrFilter,offset ASMFilterString
				mov ofn.lpstrFile,offset FileName
				mov byte ptr [FileName],0
				mov ofn.nMaxFile,sizeof FileName
				mov ofn.Flags,OFN_FILEMUSTEXIST or OFN_HIDEREADONLY or OFN_PATHMUSTEXIST
				invoke GetOpenFileName,addr ofn
				.if eax!=0
					invoke CreateFile,addr FileName,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
					.if eax!=INVALID_HANDLE_VALUE
						mov hFile,eax
						;================================================================
						; stream the text into the richedit control
						;================================================================						
						mov editstream.dwCookie,eax
						mov editstream.pfnCallback,offset StreamInProc
						invoke SendMessage,hwndRichEdit,EM_STREAMIN,SF_TEXT,addr editstream
						;==========================================================
						; Initialize the modify state to false
						;==========================================================
						invoke SendMessage,hwndRichEdit,EM_SETMODIFY,FALSE,0
						invoke CloseHandle,hFile
						mov FileOpened,TRUE
					.else
						invoke MessageBox,hWnd,addr OpenFileFail,addr AppName,MB_OK or MB_ICONERROR
					.endif
				.endif
			.elseif ax==IDM_CLOSE
				invoke CheckModifyState,hWnd
				.if eax==TRUE
					invoke SetWindowText,hwndRichEdit,0
					mov FileOpened,FALSE
				.endif
			.elseif ax==IDM_SAVE
				invoke CreateFile,addr FileName,GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0
				.if eax!=INVALID_HANDLE_VALUE
@@:				
					mov hFile,eax
					;================================================================
					; stream the text to the file
					;================================================================						
					mov editstream.dwCookie,eax
					mov editstream.pfnCallback,offset StreamOutProc
					invoke SendMessage,hwndRichEdit,EM_STREAMOUT,SF_TEXT,addr editstream
					;==========================================================
					; Initialize the modify state to false
					;==========================================================
					invoke SendMessage,hwndRichEdit,EM_SETMODIFY,FALSE,0