窗口上的控件显示出现问题。

纵横车 2014-05-01 04:36:13

我在窗口里加了一个按钮，一个文本框，一个进度条，然后用BitBlt函数设置了窗口背景为一张图片。但是我一拉大窗口后控件就不见了（只有拉大会这样，缩小窗口控件还在）。而且我将鼠标移到控件上，然后在移到窗口的空余的客户区上时控件也会不见。
求解怎么会这样！具体代码如下，很简单的一个窗口我就不写注释了。

_ProcWinMain	proc	uses ebx edi esi,hWnd,uMsg,wParam,lParam

				local	@stPs:PAINTSTRUCT

				local	@stRect:RECT

				mov	eax,uMsg

				.if eax==WM_PAINT

					invoke	BeginPaint,hWnd,addr @stPs	

					invoke	BitBlt,hDc,0,0,1366,768,hDc1,0,0,SRCCOPY

					invoke	EndPaint,hWnd,addr @stPs

				.elseif	eax==WM_COMMAND

					mov		eax,wParam

					movzx	eax,ax

					.if	eax==2000h

						invoke	SendMessage,hProgBar,PBM_DELTAPOS,5,0

					.endif

				.elseif	eax==WM_CLOSE

					invoke	DestroyWindow,hWinMain

					invoke	PostQuitMessage,NULL

				.elseif eax==WM_CREATE

					invoke	CreateWindowEx,NULL,offset button,offset ok,WS_VISIBLE or WS_CHILD or BS_DEFPUSHBUTTON,0,0,100,70,hWnd,2000h,hInstance,NULL

					invoke	CreateWindowEx,NULL,offset edit,NULL,WS_CHILD or WS_VISIBLE or ES_MULTILINE,100,0,100,200,hWnd,1000h,hInstance,NULL

					invoke	CreateWindowEx,NULL,offset ProgressBar,NULL,WS_CHILD or WS_VISIBLE,0,200,200,20,hWnd,1000h,hInstance,NULL

					mov		hProgBar,eax

			    .else

					invoke	DefWindowProc,hWnd,uMsg,wParam,lParam

					ret

				.endif

				xor	eax,eax

				ret

_ProcWinMain	endp

_WinMain		proc

				local	@stWndClass:WNDCLASSEX

				local	@stMsg:MSG

				invoke	GetModuleHandle,NULL

				mov		hInstance,eax

				invoke	LoadIcon,hInstance,1000h

				mov		hIcon,eax

				invoke	LoadBitmap,hInstance,1000h

				mov		hBitmap,eax				

				invoke	CreatePatternBrush,hBitmap

				mov		hBrush,eax

				invoke	RtlZeroMemory,addr @stWndClass,sizeof @stWndClass

				push	hInstance

				pop		@stWndClass.hInstance

				mov		@stWndClass.cbSize,sizeof WNDCLASSEX

				invoke	LoadCursor,hInstance,IDC_ARROW

				mov		@stWndClass.hCursor,eax

				mov		@stWndClass.lpfnWndProc,offset _ProcWinMain

				mov		@stWndClass.hbrBackground,COLOR_WINDOW + 1

				mov		@stWndClass.lpszClassName,offset szClassName

				invoke	RegisterClassEx,addr @stWndClass

				invoke	CreateWindowEx,WS_EX_CLIENTEDGE,offset szClassName,offset szCaptionMain,\

						WS_OVERLAPPEDWINDOW or WS_VSCROLL or WS_HSCROLL,\

						0,0,600,400,NULL,NULL,hInstance,NULL

				mov		hWinMain,eax

				invoke	SendMessage,hWinMain,WM_SETICON,ICON_BIG,hIcon				

				invoke	GetDC,hWinMain

				mov		hDc,eax

				invoke	CreateCompatibleDC,hDc

				mov		hDc1,eax

				invoke	SelectObject,hDc1,hBitmap

				invoke	ShowWindow,hWinMain,SW_SHOWNORMAL

				invoke	UpdateWindow,hWinMain

				.while  TRUE

						invoke	GetMessage,addr @stMsg,NULL,0,0

						.break	.if eax==0

						invoke	TranslateMessage,addr @stMsg

						invoke	DispatchMessage,addr @stMsg

				.endw

				ret

_WinMain	endp

start:

		call	_WinMain

		invoke	ExitProcess,NULL

end start