dialog.cpp

使非MFC窗口程序的窗口回调过程成为C++类的成员函数。

#include "stdafx.h"
#include "dialog.h"


CDialog::CDialog() : m_hWnd(NULL), m_uIDTemplate(0)
{
}


CDialog::~CDialog()
{
}



//void CDialog::SetTemplateID()
//{
//	m_uIDTemplate = IDD;
//}



int CDialog::DoModal(HWND hParent)
{
	SetTemplateID();
	return DialogBox
		(
		g_hInstance,
		MAKEINTRESOURCE(m_uIDTemplate),
		hParent,
		(DLGPROC)m_pfnWndProc
		);
}


bool CDialog::CenterDlg()
{
	HWND	hParent;
	RECT	rcParent;
	RECT	rcDlg;
	int		x, y, cx1, cy1, cx2, cy2;

	if(!IsWindow(m_hWnd))
		return false;
	if(hParent = GetParent(m_hWnd))
		GetWindowRect(hParent, &rcParent);
	else
		SystemParametersInfo(SPI_GETWORKAREA, 0, &rcParent, 0);
	cx1 = rcParent.right - rcParent.left;
	cy1 = rcParent.bottom - rcParent.top;
	GetWindowRect(m_hWnd, &rcDlg);
	cx2 = rcDlg.right - rcDlg.left;
	cy2 = rcDlg.bottom - rcDlg.top;

	x = rcParent.left + (cx1 - cx2) / 2;
	if(x < 0)
		x = 0;
	y = rcParent.top + (cy1 - cy2) / 2;
	if(y < 0)
		y = 0;
	MoveWindow(m_hWnd, x, y, cx2, cy2, true);
	return true;
}


HICON CDialog::SetIcon(HICON hIcon, bool bBigIcon)
{
	return (HICON)SendMessage(m_hWnd, WM_SETICON, (WPARAM)bBigIcon, (LPARAM)hIcon);
}


void CDialog::SetTitle(LPCTSTR lpszTitle)
{
	SendMessage(m_hWnd, WM_SETTEXT, 0, (LPARAM)lpszTitle);
}


LRESULT CALLBACK CDialog::WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch(uMsg)
	{
		HANDLE_DLGMSG(hwnd, WM_INITDIALOG,	OnInitDialog);
		HANDLE_DLGMSG(hwnd, WM_COMMAND,		OnCommand);
	}
	return false;
}


//HANDLE_WM_INITDIALOG
bool CDialog::OnInitDialog(HWND hwnd, HWND hwndFocus, LPARAM lParam)
{
	m_hWnd = hwnd;
	CenterDlg();
	return true;
}


//HANDLE_WM_SETFONT
void CDialog::OnSetFont(HWND hwndCtl, HFONT hfont, BOOL fRedraw)
{
}


//HANDLE_WM_COMMAND
void CDialog::OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
{
	switch(id)
	{
		HANDLE_CMD(hwnd, IDCANCEL,	OnCancel);
		HANDLE_CMD(hwnd, IDOK,		OnOK);
	}
}


void CDialog::OnCancel(HWND hwnd, HWND, UINT)
{
	EndDialog(hwnd, IDCANCEL);
}


void CDialog::OnOK(HWND hwnd, HWND, UINT)
{
	EndDialog(hwnd, IDOK);
}