mirror of
https://github.com/reactos/reactos.git
synced 2024-12-27 09:34:43 +00:00
148 lines
3 KiB
C
148 lines
3 KiB
C
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#include <windows.h>
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#include <stdio.h>
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static UINT WindowCount;
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LRESULT WINAPI MultiWndProc(HWND, UINT, WPARAM, LPARAM);
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int WINAPI
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WinMain(HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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LPSTR lpszCmdLine,
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int nCmdShow)
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{
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WNDCLASS wc;
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MSG msg;
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HWND hWnd1;
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HWND hWnd2;
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HWND hWndChild;
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wc.lpszClassName = "MultiClass";
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wc.lpfnWndProc = MultiWndProc;
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wc.style = CS_VREDRAW | CS_HREDRAW;
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wc.hInstance = hInstance;
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wc.hIcon = LoadIcon(NULL, (LPCTSTR) IDI_APPLICATION);
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wc.hCursor = LoadCursor(NULL, (LPCTSTR) IDC_ARROW);
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wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
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wc.lpszMenuName = NULL;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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if (RegisterClass(&wc) == 0)
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{
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fprintf(stderr, "RegisterClass failed (last error 0x%lX)\n",
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GetLastError());
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return(1);
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}
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hWnd1 = CreateWindow("MultiClass",
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"TopLevel1",
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WS_OVERLAPPEDWINDOW,
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0,
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0,
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320,
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240,
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NULL,
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NULL,
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hInstance,
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NULL);
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hWndChild = CreateWindow("MultiClass",
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"Child1 of TopLevel1",
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WS_CHILD | WS_BORDER | WS_CAPTION | WS_VISIBLE | WS_SYSMENU,
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20,
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120,
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200,
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200,
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hWnd1,
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NULL,
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hInstance,
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NULL);
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hWnd2 = CreateWindow("MultiClass",
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"TopLevel2",
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WS_OVERLAPPEDWINDOW,
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400,
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0,
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160,
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490,
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NULL,
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NULL,
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hInstance,
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NULL);
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if (! hWnd1 || ! hWnd2 || ! hWndChild)
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{
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fprintf(stderr, "CreateWindow failed (last error 0x%lX)\n",
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GetLastError());
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return(1);
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}
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WindowCount = 2;
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ShowWindow(hWnd1, SW_NORMAL);
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ShowWindow(hWnd2, SW_NORMAL);
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while(GetMessage(&msg, NULL, 0, 0))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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return msg.wParam;
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}
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LRESULT CALLBACK MultiWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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PAINTSTRUCT ps;
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HDC hDC;
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LONG Style;
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RECT Client;
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HBRUSH Brush;
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static COLORREF Colors[] =
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{
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RGB(0x00, 0x00, 0x00),
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RGB(0x80, 0x00, 0x00),
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RGB(0x00, 0x80, 0x00),
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RGB(0x00, 0x00, 0x80),
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RGB(0x80, 0x80, 0x00),
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RGB(0x80, 0x00, 0x80),
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RGB(0x00, 0x80, 0x80),
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RGB(0x80, 0x80, 0x80),
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RGB(0xff, 0x00, 0x00),
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RGB(0x00, 0xff, 0x00),
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RGB(0x00, 0x00, 0xff),
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RGB(0xff, 0xff, 0x00),
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RGB(0xff, 0x00, 0xff),
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RGB(0x00, 0xff, 0xff),
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RGB(0xff, 0xff, 0xff)
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};
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static unsigned CurrentColor = 0;
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switch(msg)
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{
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case WM_PAINT:
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hDC = BeginPaint(hWnd, &ps);
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GetClientRect(hWnd, &Client);
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Brush = CreateSolidBrush(Colors[CurrentColor]);
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FillRect(hDC, &Client, Brush);
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DeleteObject(Brush);
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CurrentColor++;
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if (sizeof(Colors) / sizeof(Colors[0]) <= CurrentColor)
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{
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CurrentColor = 0;
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}
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EndPaint(hWnd, &ps);
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break;
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case WM_DESTROY:
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Style = GetWindowLong(hWnd, GWL_STYLE);
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if (0 == (Style & WS_CHILD) && 0 == --WindowCount)
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{
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PostQuitMessage(0);
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}
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break;
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default:
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return DefWindowProc(hWnd, msg, wParam, lParam);
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}
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return 0;
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}
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