WinApi 기본코드 입니다.

Visual Studio 2017 에서 작성한 기본 WinApi 코드 입니다.

#include <Windows.h>
 
HINSTANCE g_hInstance; 
HWND      g_hWnd;       
LPSTR      g_lpszClass = (LPSTR)TEXT("윈메인의 시작");
 
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
 
int APIENTRY WinMain(HINSTANCE _hInstance, HINSTANCE _hPrevInstance,
    LPSTR _lpszCmdParam, int nCmdShow)
{
    g_hInstance = _hInstance;
 
    WNDCLASS wndClass;
    wndClass.cbClsExtra = 0;    
    wndClass.cbWndExtra = 0;    
    wndClass.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH); 
    wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
    wndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wndClass.hInstance = _hInstance;
    wndClass.lpfnWndProc = WndProc;    
                                    
    wndClass.lpszClassName = g_lpszClass;    
    wndClass.lpszMenuName = NULL;
    wndClass.style = CS_HREDRAW | CS_VREDRAW;
 
 
    RegisterClass(&wndClass);
 
    g_hWnd = CreateWindow(g_lpszClass, 
        g_lpszClass, 
        WS_OVERLAPPEDWINDOW,
        50, 50,
        600, 450,
        NULL, NULL, 
        _hInstance, NULL);
 
    ShowWindow(g_hWnd, nCmdShow);
 
    MSG message;
    while (GetMessage(&message, 0, 0, 0))
    {
        TranslateMessage(&message);
        DispatchMessage(&message);
    }
 
    return message.wParam;
}
 
LRESULT CALLBACK WndProc(HWND hWnd, UINT iMessage,
    WPARAM wParam, LPARAM lParam)
{
    switch (iMessage)
    {
    case WM_CREATE:
        break;
    /*case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        EndPaint(hWnd, &ps);
        break;*/
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    }
 
    return DefWindowProc(hWnd, iMessage, wParam, lParam);
}