클립보드 그림 복사 (Clipboard)

#include <windows.h>

LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
HINSTANCE g_hInst;
LPSTR lpszClass="ClipBit";

int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance
         ,LPSTR lpszCmdParam,int nCmdShow)
{
    HWND hWnd;
    MSG Message;
    WNDCLASS WndClass;
    g_hInst=hInstance;
    
    WndClass.cbClsExtra=0;
    WndClass.cbWndExtra=0;
    WndClass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
    WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
    WndClass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
    WndClass.hInstance=hInstance;
    WndClass.lpfnWndProc=(WNDPROC)WndProc;
    WndClass.lpszClassName=lpszClass;
    WndClass.lpszMenuName=NULL;
    WndClass.style=CS_HREDRAW | CS_VREDRAW;
    RegisterClass(&WndClass);

    hWnd=CreateWindow(lpszClass,lpszClass,WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,
        NULL,(HMENU)NULL,hInstance,NULL);
    ShowWindow(hWnd,nCmdShow);
    
    while(GetMessage(&Message,0,0,0)) {
        TranslateMessage(&Message);
        DispatchMessage(&Message);
    }
    return Message.wParam;
}

#include "resource.h"
LRESULT CALLBACK WndProc(HWND hWnd,UINT iMessage,WPARAM wParam,LPARAM lParam)
{
    HDC hdc;
    PAINTSTRUCT ps;
    char Mes[]="왼쪽 버튼은 비트맵 복사, 오른쪽 버튼은 비트맵 붙이기";
    HBITMAP hBit,hOldBitmap;
    HDC hMemDC;
    BITMAP bmp;
    switch(iMessage) {
    case WM_LBUTTONDOWN:
        hBit=LoadBitmap(g_hInst, MAKEINTRESOURCE(IDB_BITMAP1));
        if (OpenClipboard(hWnd)) {
            EmptyClipboard();
            SetClipboardData(CF_BITMAP,hBit);
            CloseClipboard();
        }
        return 0;
    case WM_RBUTTONDOWN:
        if (!IsClipboardFormatAvailable(CF_BITMAP))
            return 0;
        if (OpenClipboard(hWnd)) {
            hBit=(HBITMAP)GetClipboardData(CF_BITMAP);
            CloseClipboard();
            hdc=GetDC(hWnd);
            hMemDC=CreateCompatibleDC(hdc);
            hOldBitmap=(HBITMAP)SelectObject(hMemDC,hBit);
            GetObject(hBit,sizeof(BITMAP),&bmp);
            BitBlt(hdc,0,0,bmp.bmWidth,bmp.bmHeight,hMemDC,0,0,SRCCOPY);
            SelectObject(hMemDC,hOldBitmap);
            DeleteDC(hMemDC);
            ReleaseDC(hWnd,hdc);
        }
        return 0;
    case WM_PAINT:
        hdc=BeginPaint(hWnd, &ps);
        TextOut(hdc,100,100,Mes,strlen(Mes));
        EndPaint(hWnd, &ps);
        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return(DefWindowProc(hWnd,iMessage,wParam,lParam));
}