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/*
MagnifierWindow.cpp
Thin wrapper around win32 window objects.
Copyright (C) 2005 Chris O'Donnell
This file is part of Virtual Magnifying Glass for Windows.
Virtual Magnifying Glass for Windows is free software;
you can redistribute it and/or modify it under the
terms ofthe GNU General Public License version 2
as published by the Free Software Foundation.
Virtual Magnifying Glass for Windows is distributed in the hope
that it will be useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.
Please note that the General Public License version 2 does not permit
incorporating Virtual Magnifying Glass for Windows into proprietary
programs.
*/
#include "stdafx.h"
#include "MagnifierWindow.h"
////////////////////////////////////////////////////////////////////////////////
LRESULT CALLBACK MagnifierWindow::windowProc(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
// Won't be valid during WM_CREATE
MagnifierWindow* d = reinterpret_cast<MagnifierWindow*>(GetWindowLongPtr(hwnd, GWLP_USERDATA));
LRESULT result = 1;
switch(uMsg)
{
case WM_CREATE:
break;
default:
if(d)
{
result = d->handleMessage(hwnd, uMsg, wParam, lParam);
}
break;
}
if(result)
{
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
MagnifierWindow::MagnifierWindow()
: mHinst(NULL)
, mHwnd(NULL)
{
}
////////////////////////////////////////////////////////////////////////////////
MagnifierWindow::~MagnifierWindow()
{
}
////////////////////////////////////////////////////////////////////////////////
int MagnifierWindow::create(
HINSTANCE inst,
int x, int y,
int width, int height,
LPCWSTR className,
LPCWSTR caption,
DWORD windowStyle,
int icon /*= 0*/,
int iconSmall /*= 0*/,
DWORD classStyle /*= 0*/)
{
mHinst = inst;
mX = x;
mY = y;
mWidth = width;
mHeight = height;
mClassName = className;
mCaption = caption;
mIcon = icon;
mIconSmall = iconSmall;
WNDCLASSEX wndclass;
wndclass.cbSize = sizeof(wndclass);
wndclass.style = CS_OWNDC | classStyle;
wndclass.lpfnWndProc = windowProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = mHinst;
wndclass.hIcon = LoadIcon (mHinst, MAKEINTRESOURCE(mIcon));
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW);
wndclass.hbrBackground = (HBRUSH) GetStockObject (/*COLOR_BACKGROUND*/NULL_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = mClassName;
wndclass.hIconSm = LoadIcon(mHinst, MAKEINTRESOURCE(mIconSmall));
RegisterClassEx (&wndclass);
mHwnd = CreateWindowEx(
0,
mClassName,
mCaption,
windowStyle/*WS_SYSMENU | WS_CAPTION*/,
mX,
mY,
mWidth,
mHeight,
NULL,
NULL,
mHinst,
NULL);
// Connect the wndProc to this object
SetWindowLongPtr(mHwnd, GWLP_USERDATA, (LONG)this);
afterCreate();
return 0;
}
////////////////////////////////////////////////////////////////////////////////
VOID CALLBACK TimerProc(
HWND hwnd,
UINT uMsg,
UINT_PTR idEvent,
DWORD dwTime)
{
MagnifierWindow* m = reinterpret_cast<MagnifierWindow*>(idEvent);
m->handleTimer();
}
////////////////////////////////////////////////////////////////////////////////
void MagnifierWindow::handleTimer()
{
}
////////////////////////////////////////////////////////////////////////////////
void MagnifierWindow::afterCreate()
{
SetTimer(hwnd(), (UINT_PTR)this, 100 /*msecs*/, TimerProc);
}
////////////////////////////////////////////////////////////////////////////////
void MagnifierWindow::show(bool shouldShow)
{
if(!mHwnd)
{
return;
}
ShowWindow(mHwnd, shouldShow ? SW_SHOW : SW_HIDE);
UpdateWindow(mHwnd);
}
////////////////////////////////////////////////////////////////////////////////
int MagnifierWindow::destroy()
{
if(mHwnd)
{
DestroyWindow(mHwnd);
mHwnd = 0;
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
LRESULT MagnifierWindow::handleMessage(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
LRESULT result = 1;
switch(uMsg)
{
case WM_COMMAND:
result = 1;
break;
default:
break;
}
return result;
}
////////////////////////////////////////////////////////////////////////////////
HWND MagnifierWindow::hwnd()
{
return mHwnd;
}
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