windows-nt/Source/XPSP1/NT/enduser/stuff/hhctrl/sizebar.h

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2020-09-26 03:20:57 -05:00
#ifndef __SIZEBAR_H__
#define __SIZEBAR_H__
///////////////////////////////////////////////////////////
//
//
// SIZEBAR.h - CSizeBar control encapsulates the sizebar
//
//
//
// Copyright (C) 1996-1997 Microsoft Corporation. All rights reserved.
///////////////////////////////////////////////////////////
//
// Forword references.
//
class CHHWinType ;
///////////////////////////////////////////////////////////
//
// CSizeBar
//
class CSizeBar
{
public:
// Constructor
CSizeBar();
// Destructor
~CSizeBar();
// Access
public:
HWND hWnd() const
{ return m_hWnd; }
// Gets the width of the bar.
static int Width();
// The smallest width a pane can be sized.
static int MinimumPaneWidth() {return Width()*5;}
// The smallest width the topic can be sized.
static int MinimumTopicWidth() {return Width()*15;}
// Operations
public:
// Create
bool Create(CHHWinType* pWinType) ;
// Resize
void ResizeWindow() ;
// Register the window class
static void RegisterWindowClass() ;
// Internal Helper Functions
protected:
void CalcSize(RECT* prect) ;
// Window Proc
LRESULT SizeBarProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
// Draw
void Draw() ;
// Callbacks
private:
// Window Proc
static LRESULT WINAPI s_SizeBarProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
// Member variables.
protected:
// Window handle to the sizebar
HWND m_hWnd;
// Window handle to our parent window.
HWND m_hWndParent;
// CHHWinType pointer so that we can get the handle to the HTMLHelp Window.
CHHWinType*m_pWinType;
// how far is the mouse away from the left edge of the sizebar.
int m_offset ;
// True if dragging.
bool m_bDragging ;
};
#endif //__CSizeBar_H__