VS中如何用C语言实现图形编程？

qq_33186495 2015-12-09 12:16:33

VS中有哪些C图形库

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赵4老师 2015-12-10

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#pragma comment(lib,"user32")
#pragma comment(lib,"gdi32")
#include <windows.h>
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
    PAINTSTRUCT ps;
    HDC hdc;
    HFONT hfont,ohfont;
    RECT r;
    COLORREF oc;

    switch(message) {
    case WM_CLOSE://按Alt+F4退出
        PostQuitMessage(0);
        break;
    case WM_PAINT:
        BeginPaint(hWnd, &ps);
        hdc = ps.hdc; // the device context to draw in
        GetClientRect(hWnd, &r); // Obtain the window's client rectangle
        hfont = CreateFont(200, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "宋体");
        ohfont=(HFONT)SelectObject(hdc,hfont);
        oc=SetTextColor(hdc,0x00C080FF);
        SetBkMode(hdc, TRANSPARENT);
        TextOut(hdc,r.left+r.right/2-600, r.top+r.bottom/2-100,"最短画图程序",12);
        SelectObject(hdc,ohfont);
        SetTextColor(hdc,oc);
        DeleteObject(hfont);
        EndPaint(hWnd, &ps);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
    MSG msg             = {0};
    WNDCLASS wc         = {0};
    HBRUSH hbrh;
    hbrh=CreateSolidBrush(0x00000000);
    wc.lpfnWndProc      = WndProc;
    wc.hInstance        = hInstance;
    wc.hbrBackground    = hbrh;
    wc.lpszClassName    = "minwindowsapp";
    wc.hCursor          = LoadCursor(NULL,IDC_ARROW);
    if( FAILED(RegisterClass(&wc)) ) return 1;

    if(FAILED(CreateWindow(wc.lpszClassName,
                        "Minimal Windows Application",
                        WS_POPUP|WS_VISIBLE,
                        0,
                        0,
                        GetSystemMetrics(SM_CXSCREEN),
                        GetSystemMetrics(SM_CYSCREEN),
                        0,
                        0,
                        hInstance,
                        NULL)))
        return 2;

    while( GetMessage( &msg, NULL, 0, 0 ) > 0 ) {
        DispatchMessage( &msg );
    }
    DeleteObject(hbrh);
    return 0;
}

qq_31629603 2015-12-10