bmp2.zip_bmp2_zip

#define STRICT #define WIN32_LEAN_AND_MEAN #include <windows.h> #include <tchar.h> #include "resource.h" LRESULT CALLBACK FrameWndProc(HWND, UINT, WPARAM, LPARAM); LRESULT CALLBACK SubClassProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam); WNDPROC g_fnOldProc = NULL; HINSTANCE g_hInstance = NULL; _TCHAR szFrameClass[] = _T("VnMdiFrame"); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCommandList, int iCmdShow) { HWND hWndFrame; MSG msg; WNDCLASSEX wc; ZeroMemory(&wc, sizeof(WNDCLASSEX)); g_hInstance = hInstance; if (!hPrevInstance) { wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = FrameWndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = NULL; wc.hCursor = NULL; wc.hbrBackground = (HBRUSH) (COLOR_APPWORKSPACE + 1); wc.lpszMenuName = NULL; wc.lpszClassName = szFrameClass; wc.hIconSm = NULL; RegisterClassEx(&wc); hWndFrame = CreateWindow(szFrameClass, _T("MDI Bitmap Background"), WS_VISIBLE | WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); UpdateWindow(hWndFrame); while(GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } return 0; } LRESULT CALLBACK FrameWndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam) { static HWND hwndClient = NULL; CLIENTCREATESTRUCT ccs; switch(nMsg) { case WM_CREATE : ZeroMemory(&ccs, sizeof(CLIENTCREATESTRUCT)); ccs.hWindowMenu = NULL; hwndClient = CreateWindow(_T("MDICLIENT"), NULL, WS_CHILD | WS_CLIPCHILDREN | WS_VISIBLE, 0, 0, 0, 0, hWnd, (HMENU) NULL, g_hInstance, (LPSTR) &ccs); g_fnOldProc = (WNDPROC) SetWindowLong(hwndClient, GWL_WNDPROC, (LONG) SubClassProc); return 0; break; case WM_QUERYENDSESSION : case WM_CLOSE : if (NULL != GetWindow(hwndClient, GW_CHILD)) return 0; break; case WM_DESTROY : PostQuitMessage(0); return 0; break; } return DefFrameProc(hWnd, hwndClient, nMsg, wParam, lParam); } LRESULT CALLBACK SubClassProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam) { static HBITMAP hBitmap = NULL; static BITMAP bm; switch (nMsg) { case WM_ERASEBKGND: if (!hBitmap) { hBitmap = LoadBitmap(g_hInstance, MAKEINTRESOURCE(IDB_MDIBKGND)); ZeroMemory(&bm, sizeof(BITMAP)); GetObject(hBitmap, sizeof(BITMAP), (LPVOID)&bm); } if (hBitmap != NULL) { HDC hDC = (HDC) wParam; RECT rect; GetClientRect(hWnd, &rect); HDC hMemDC = CreateCompatibleDC(NULL); HBITMAP hOldBitmap = NULL; UINT nWidth = rect.right - rect.left; UINT nHeight = rect.bottom - rect.top; hOldBitmap = (HBITMAP) SelectObject(hMemDC, hBitmap); UINT nX; UINT nY; for (nX = 0; nX < nWidth; nX += bm.bmWidth) for (nY = 0; nY < nHeight; nY += bm.bmHeight) BitBlt(hDC, nX, nY, bm.bmWidth, bm.bmHeight, hMemDC, 0, 0, SRCCOPY); SelectObject(hMemDC, hOldBitmap); return 1; } break; case WM_DESTROY: if (hBitmap) { DeleteObject(hBitmap); hBitmap = NULL; ZeroMemory(&bm, sizeof(BITMAP)); } break; } return CallWindowProc(g_fnOldProc, hWnd, nMsg, wParam, lParam); }