ATL / WTL / STL

dancingfish wrote:

Why "FlatSB" is useless in WTL?

// CFlatScrollBarImpl - support for flat scroll bars

#if (_WIN32_IE >= 0x0400) && !defined(_WIN32_WCE)

template <class T>
class CFlatScrollBarImpl
{
// ...
template <class TBase>
class CFlatScrollBarT : public TBase, public CFlatScrollBarImpl<CFlatScrollBarT< TBase > >
{
//...
typedef CFlatScrollBarT<ATL::CWindow>   CFlatScrollBar;
//...

dancingfish wrote:

I know the class CFlatScrollBarImpl, i've got a failed try

class CFlatScrollBarWnd : public CWindowImpl<CFlatScrollBarWnd, CFlatScrollBar>
{
public:
	DECLARE_WND_CLASS(NULL)

	BEGIN_MSG_MAP(CFlatScrollBarWnd)
		MESSAGE_HANDLER(WM_CREATE, OnCreate)
	END_MSG_MAP()

	LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		FlatSB_Initialize();
		FlatSB_SetScrollProp(WSB_PROP_VSTYLE, FSB_ENCARTA_MODE);
		FlatSB_ShowScrollBar(SB_BOTH);
		FlatSB_SetScrollRange(SB_HORZ, 0, 2000);
		FlatSB_SetScrollRange(SB_HORZ, 0, 1000);
		// ...
		return 0;
	}
};

// FlatScrollBarView.h : interface of the CFlatScrollBarView class
//
/////////////////////////////////////////////////////////////////////////////
#pragma once
class CFlatScrollBarView : 
	public CWindowImpl<CFlatScrollBarView, CFlatScrollBar>
{
public:
	DECLARE_WND_CLASS(NULL)
	BEGIN_MSG_MAP(CFlatScrollBarView)
		MESSAGE_HANDLER(WM_CREATE, OnCreate)
		MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
	END_MSG_MAP()
	LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		FlatSB_Initialize();
		FlatSB_SetScrollProp(WSB_PROP_VSTYLE, FSB_ENCARTA_MODE);
		FlatSB_SetScrollProp(WSB_PROP_CXVSCROLL, 100);
		FlatSB_SetScrollProp(WSB_PROP_HBKGCOLOR, RGB(0x80, 0, 0x80));
		FlatSB_ShowScrollBar(SB_BOTH);
		FlatSB_SetScrollRange(SB_HORZ, 0, 2000);
		FlatSB_SetScrollRange(SB_HORZ, 0, 1000);
		return 0;
	}
	LRESULT OnDestroy(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		FlatSB_Uninitialize();
		return 0;
	}
};

1. use the __try/__except statements (see try-except Statement (Windows)[^])
2. install a vectored exception handler (see Vectored Exception Handling (Windows)[^])
3. translate asynchronous exceptions to C++ (synchronous) exceptions (see /EH (Exception Handling Model) (C++)[^] and _set_se_translator (CRT)[^])

//in the name of Allah
#include<iostream>
#include<csetjmp>
#include<stdexcept>

using namespace std;
int main(){
int a=0;
int b;
try{
if(a==0)
  throw "Denominator should not be zero"
b=12/a;
}
catch (const char msg[])
{
	MessageBox(msg,"Exception",MB_OK | MB_ICONEXCLAMATION);
}
catch(...){
cout<<"an exception acurred :"<<;endl;
b=12;
}


}

LRESULT OnGetInfoTip(int /*idCtrl*/, LPNMHDR pnmh, BOOL& /*bHandled*/)
{
    LPNMTVGETINFOTIP pgit = (LPNMTVGETINFOTIP)pnmh;
    // set adequate values in *pgit

shg104 wrote:

I got it,thank you very much