144 lines
3 KiB
C++
144 lines
3 KiB
C++
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/*++
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Copyright (C) 1996-1999 Microsoft Corporation
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Module Name:
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snapbar.cpp
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Abstract:
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Implementation of the snapshot icon.
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--*/
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#include <windows.h>
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#include "snapbar.h"
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#include "resource.h"
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#define SNAPBTN_HEIGHT 24
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#define SNAPBTN_WIDTH 32
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#define SNAPBTN_VMARGIN 1
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#define SNAPBTN_HMARGIN 8
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#define SNAPBAR_HEIGHT (SNAPBTN_HEIGHT + 2 * SNAPBTN_VMARGIN)
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#define SNAPBAR_WIDTH (SNAPBTN_WIDTH + SNAPBTN_HMARGIN)
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CSnapBar::CSnapBar (
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VOID
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)
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{
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m_hWnd = NULL;
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m_hBitmap = NULL;
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}
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CSnapBar::~CSnapBar (
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VOID
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)
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{
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if (m_hWnd != NULL && IsWindow(m_hWnd))
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DestroyWindow(m_hWnd);
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if (m_hBitmap != NULL)
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DeleteObject(m_hBitmap);
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}
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BOOL
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CSnapBar::Init (
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IN CSysmonControl *pCtrl,
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IN HWND hWndParent
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)
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{
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HINSTANCE hInst;
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m_pCtrl = pCtrl;
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hInst = (HINSTANCE) GetWindowLongPtr(hWndParent, GWLP_HINSTANCE);
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// Create the button window
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m_hWnd = CreateWindow(TEXT("BUTTON"), NULL,
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WS_VISIBLE| WS_CHILD| BS_BITMAP| BS_PUSHBUTTON,
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0, 0, SNAPBTN_WIDTH, SNAPBTN_HEIGHT,
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hWndParent,
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(HMENU)IDC_SNAPBTN,
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hInst,
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NULL);
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if (m_hWnd == NULL)
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return FALSE;
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// Point back to object
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//SetWindowLongPtr(m_hWnd, 0, (INT_PTR)this);
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// Insert our own window procedure for special processing
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//m_WndProc = (WNDPROC)SetWindowLongPtr(hWndParent, GWLP_WNDPROC, (INT_PTR)SnapBarWndProc);
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// Load the bitmap
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m_hBitmap = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_SNAPBTN));
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if (m_hBitmap == NULL)
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return FALSE;
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// Assign it to the button
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SendMessage(m_hWnd, BM_SETIMAGE, (WPARAM)IMAGE_BITMAP, (LPARAM)m_hBitmap);
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return TRUE;
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}
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INT
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CSnapBar::Height (
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IN INT iMaxHeight
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)
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{
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return (iMaxHeight >= SNAPBAR_HEIGHT) ? SNAPBAR_HEIGHT : 0;
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}
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VOID
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CSnapBar::SizeComponents (
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IN LPRECT pRect
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)
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{
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// If room for the button
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if ((pRect->bottom - pRect->top) >= SNAPBAR_HEIGHT &&
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(pRect->right - pRect->left) >= SNAPBAR_WIDTH ) {
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// Position it in top right corner of space
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MoveWindow(m_hWnd, pRect->right - SNAPBAR_WIDTH,
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pRect->top + SNAPBTN_VMARGIN, SNAPBTN_WIDTH, SNAPBTN_HEIGHT,
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FALSE);
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ShowWindow(m_hWnd, TRUE);
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}
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else {
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ShowWindow(m_hWnd, FALSE);
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}
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}
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LRESULT CALLBACK
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SnapBarWndProc (
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HWND hWnd,
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UINT uiMsg,
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WPARAM wParam,
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LPARAM lParam
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)
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{
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PSNAPBAR pObj = (PSNAPBAR)GetWindowLongPtr(hWnd,0);
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// Give up focus after mouse activation
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if (uiMsg == WM_CAPTURECHANGED)
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SetFocus(GetParent(hWnd));
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// Do normal processing
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#ifdef STRICT
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return CallWindowProc(pObj->m_WndProc, hWnd, uiMsg, wParam, lParam);
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#else
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return CallWindowProc((FARPROC)pObj->m_WndProc, hWnd, uiMsg, wParam, lParam);
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#endif
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}
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