dialog.asm

用汇编写的win32程序一些例子。

	.386
	.model flat,STDCALL

include win32.asi           ; some 32-bit constants and structures
include win32.ase

	.code

CenterWindow	PROC	hwnd : dword
	LOCAL	wrect : RECT, wWidth : dword, wHeight : dword

	lea	eax,[wrect]
	call	GetWindowRect,[hwnd],eax

	call	GetSystemMetrics,SM_CXSCREEN
	mov	[wWidth],eax
	call	GetSystemMetrics,SM_CYSCREEN
	mov	[wHeight],eax

	mov     ecx,[wrect.rcRight]
	sub	ecx,[wrect.rcLeft]
	mov	eax,[wWidth]
	sub	eax,ecx
	shr	eax,1
	
	mov     edx,[wrect.rcBottom]
	sub	edx,[wrect.rcTop]
	mov	ebx,[wHeight]
	sub	ebx,edx
	shr	ebx,1
	
	call	MoveWindow,[hwnd],eax,ebx,ecx,edx,0

	ret
CenterWindow	ENDP
;-----------------------------------------------------------------------------
;
; For dialog boxes that only have an 'ok' button
;
Public WaitingProc
WaitingProc	proc uses ebx edi esi, hdlg:DWORD, wmsg:DWORD, wparam:DWORD, lparam:DWORD

; now if we have a WM_COMMAND message one of the dialog controls
; has been clicked so see which one
;
		cmp	[wmsg],WM_COMMAND
		jnz	wpchkcenter
		cmp	[wparam],IDOK
		jnz	nomsg
;
; ok selected, close the dialog and return to the other window
;		
exitdlg:
		call	EndDialog,[hdlg],0
nomsg:
		sub	eax,eax
		ret

wpchkcenter:
	cmp	[wmsg],WM_INITDIALOG
	jnz	wpx
	call	CenterWindow,[hdlg]

wpx:
	sub	eax,eax
	ret
WaitingProc	endp
;-----------------------------------------------------------------------------
;
; For dialog boxes that have Yes/No buttons
;
Public YesNoProc
YesNoProc	proc uses ebx edi esi, hdlg:DWORD, wmsg:DWORD, wparam:DWORD, lparam:DWORD

; now if we have a WM_COMMAND message one of the dialog controls
; has been clicked so see which one
;
		cmp	[wmsg],WM_COMMAND
		jnz	ynchkcenter
		cmp	[wparam],IDYES
		mov	eax,1
		jz	ynend
		cmp	[wparam],IDNO
		mov	eax,0
		jz	ynend
		cmp	[wparam],IDCANCEL
		mov	eax,-1
		jz	ynend
		sub	eax,eax
		ret
ynend:
		call	EndDialog,[hdlg],eax
		sub	eax,eax
		ret
ynchkcenter:
	cmp	[wmsg],WM_INITDIALOG
	jnz	ynx
	call	CenterWindow,[hdlg]

ynx:
	sub	eax,eax
	ret
YesNoProc	endp
	end