uisupport.cpp

SQLBig5BugTool 宽字符操作问题

// UISupport.cpp: implementation of the CUISupport class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "UISupport.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CUISupport::CUISupport()
{

}

CUISupport::~CUISupport()
{

}

int CUISupport::GetRealWindow(HWND &hWnd, POINT ptPoint)
{
	HWND hWndTop = NULL;
	HWND hWndChild = NULL;

	POINT ptCooChild = {0};
	LONG lWindowStyle = 0;

	hWndTop = ::WindowFromPoint(ptPoint);
	if(!hWndTop)
	{
		return -10;
	}
	
	ptCooChild = ptPoint;
	
	lWindowStyle = GetWindowLong(hWndTop, GWL_STYLE);
	
	if(
		!GetParent(hWndTop) || 
		GetDesktopWindow() == GetParent(hWndTop) ||
		!(lWindowStyle & WS_CHILDWINDOW)
		)
	{
		hWnd = hWndTop;
	}
	else
	{
		hWnd = GetParent(hWndTop);
	}

	::ScreenToClient(hWnd, &ptCooChild);
	
	typedef HWND (WINAPI	*PFN_RealChildWindowFromPoint)(
		HWND hwndParent,
		POINT ptParentClientCoords
		);
	
	PFN_RealChildWindowFromPoint pfnRealChildWindowFromPoint=
		(PFN_RealChildWindowFromPoint)GetProcAddress(GetModuleHandle("USER32"),"RealChildWindowFromPoint");

	while (true)
	{
		if(pfnRealChildWindowFromPoint)
		{
			hWndChild = pfnRealChildWindowFromPoint(hWnd, ptCooChild);
		}
		else
		{
			hWndChild = ChildWindowFromPointEx(hWnd, ptCooChild,CWP_SKIPINVISIBLE|CWP_SKIPDISABLED|CWP_SKIPTRANSPARENT);
		}
		
		if (hWndChild && (hWndChild != hWnd))
			hWnd = hWndChild;
		else
			break;
	}
	
	return 0;
}

HWND CUISupport::GetCurrentWndUnderCursor()
{
	HWND hWnd=0;

	POINT ptCursorPos={0,};

	GetCursorPos(&ptCursorPos);

	int nRetCode=CUISupport::GetRealWindow(hWnd,ptCursorPos);

	if(nRetCode<0)
	{
		return 0;
	}
	return hWnd;
}

int CUISupport::DrawWindowFrame(HWND hWnd)
{
	static CRect	rtWinRect;
	static CDC		DC;	
	static CPen     pen(PS_SOLID, 3, RGB(255,0,0));
	static CPen		*pOldPen = NULL;
	static HDC		hDC = NULL;
	

	if(!IsWindow(hWnd))
	{
		return -10;
	};

	::GetWindowRect(hWnd, &rtWinRect);
	
	hDC = ::GetWindowDC(hWnd);
	if(!hDC)
	{
		return -20;
	};
	
	DC.Attach(hDC);

	pOldPen = DC.SelectObject(&pen);

	DC.MoveTo(0, 0);
	DC.LineTo(rtWinRect.Width(), 0);
	DC.LineTo(rtWinRect.Width(), rtWinRect.Height());
	DC.LineTo(0, rtWinRect.Height());
	DC.LineTo(0, 0);

	DC.SelectObject(pOldPen);
	
	DC.DeleteDC();

	::ReleaseDC(hWnd, hDC);

	return 0;
}

int CUISupport::RedrawWindowFrame(HWND hWnd)
{
	CRgn rgMaxFrameRgn;
	CRgn rgMinFrameRgn;
	CRgn rgInvalidateFrameRgn;
	
	CRect rtWinRect;

	CWnd *pWndParent = NULL;
	CDC *pDC = NULL;

	HWND hWndParent = NULL;

	if(!IsWindow(hWnd))
	{
		return -10;
	};
	
	::GetWindowRect(hWnd, &rtWinRect);
	
	::RedrawWindow(hWnd,
		NULL, NULL, 
		RDW_INTERNALPAINT | RDW_INVALIDATE | RDW_ERASENOW | 
		RDW_UPDATENOW | RDW_ERASE | RDW_FRAME | RDW_ALLCHILDREN
	);

	hWndParent = GetParent(hWnd);

	if(hWndParent)
	{
		::RedrawWindow(
			hWndParent,
			NULL, NULL, 
			RDW_INTERNALPAINT | RDW_INVALIDATE | RDW_ERASENOW | 
			RDW_UPDATENOW | RDW_ERASE | RDW_FRAME | RDW_ALLCHILDREN
		);
	};

	return 0;
}